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WO2017136669A1 - Adhésifs décollables et utilisation à haute température correspondante - Google Patents

Adhésifs décollables et utilisation à haute température correspondante Download PDF

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Publication number
WO2017136669A1
WO2017136669A1 PCT/US2017/016422 US2017016422W WO2017136669A1 WO 2017136669 A1 WO2017136669 A1 WO 2017136669A1 US 2017016422 W US2017016422 W US 2017016422W WO 2017136669 A1 WO2017136669 A1 WO 2017136669A1
Authority
WO
WIPO (PCT)
Prior art keywords
composition
present
range
debondable
optionally
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2017/016422
Other languages
English (en)
Inventor
Alan E. Litke
Bahram Issari
Laxmisha SRIDHAR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel IP and Holding GmbH
Original Assignee
Henkel IP and Holding GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel IP and Holding GmbH filed Critical Henkel IP and Holding GmbH
Priority to JP2018540846A priority Critical patent/JP2019511587A/ja
Priority to EP17748235.3A priority patent/EP3411447A4/fr
Priority to KR1020187021592A priority patent/KR20180123009A/ko
Priority to CN201780010024.7A priority patent/CN108699411B/zh
Publication of WO2017136669A1 publication Critical patent/WO2017136669A1/fr
Priority to US16/053,920 priority patent/US20180355231A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2479/00—Presence of polyamine or polyimide
    • C09J2479/08—Presence of polyamine or polyimide polyimide

Definitions

  • the present invention relates to curable temporary adhesives and methods for the use thereof in high temperature applications.
  • the invention relates to methods for the temporary attachment of one substrate to another.
  • the invention relates to methods for debonding a substrate and a carrier.
  • the invention relates to methods for the permanent attachment of one substrate to another.
  • the invention relates to assemblies comprising a first article temporarily adhered to a second article by a cured aliquot of a formulation as described herein.
  • the invention relates to assemblies comprising a first article permanently adhered to a second article by a cured aliquot of a formulation as described herein.
  • An exemplary substrate is a very thin ( ⁇ ) glass packed with functionalities.
  • the glass is typically processed at temperatures as high as 400°C to depose thin film transistors (TFT) or at 350°C to deposit indium tin oxide (ITO) as a transparent conductor. Due to the fragility of the glass and the harsh process conditions, this glass must be reinforced or protected by a more stable substrate during fabrication.
  • Adhesives suitable for high temperature temporary bonding applications which can later be removed at room temperature without causing damage to the target component, would advance the use of thinner or more flexible substrates across various industries.
  • debondable adhesive compositions comprising:
  • A one or more bis-maleimide (BMI), nadimide or itaconimide oligomer(s),
  • (B) at least one ethylenically unsaturated co-monomer e.g. co-monomers selected from the group consisting of acrylates, methacrylates, vinyl ethers, vinyl esters, styrenic compounds, allyl compounds, polybutadienes, cinnamates, crotonates, and mixtures of any two or more thereof
  • co-monomers selected from the group consisting of acrylates, methacrylates, vinyl ethers, vinyl esters, styrenic compounds, allyl compounds, polybutadienes, cinnamates, crotonates, and mixtures of any two or more thereof
  • the resulting adhesive compositions maintain adhesion at temperatures of 300°C, or greater, are mechanically debondable (peelable) at room temperature after exposure to heat cycling, and the residue thereof is easily removed by common solvents.
  • the adhesive compositions of the present invention have high adhesion to target substrates; moreover, adhesion promoters may optionally be employed for further control of bond strength.
  • the formulations are capable of being light cured without radical initiator, but typical photoinitiators may optionally be added depending on the reactivity required.
  • the present invention provides assemblies comprising a substrate and a carrier for the substrate (see, for example, Figure 1) in which the debondable adhesive composition is disposed between the substrates and temporarily bonds the substrates, and a method for fabricating the assembly.
  • the present invention provides methods of debonding a substrate from a carrier comprising: (a) disposing a debondable adhesive on a substrate and/or a carrier, (b) contacting the substrate and carrier so that the debondable adhesive is disposed between, forming an assembly, (c) heating the assembly at a temperature or range of temperatures to adhere the substrates, or (d) exposing the assembly to radiation to adhere the substrates, or (e) exposing the assembly to radiation followed by thermal heating to adhere the substrates, and (f) allowing the assembly to come to ambient temperature and mechanically separating the substrates.
  • step (c) heating will be applied at a temperature or range of temperatures within the temperature range of 60°C to 200°C for 1 to 60 minutes.
  • the temperature or range of temperatures may fall within the temperature range of 80°C to 175°C for 1 to 45 minutes; in some embodiments, the temperature or range of temperatures may fall within the temperature range of 100°C to 150°C for 1 to 30 minutes.
  • UV radiation can be applied using a 400 Watt lamp for about 10 seconds to5 minutes; in some embodiments, UV radiation can be applied for 30 seconds to 4 minutes; in some embodiments, UV radiation can be applied for 1 to 3 minutes; other sources of radiation may also be used within the discretion of the practitioner.
  • step (e) When step (e) is used, a combination of the parameters for steps (c) and (d) will be used to obtain the desired cure; suitable cure conditions can be determined by one skilled in the art without undue experimentation knowing the parameters of steps (c) and (d).
  • Suitable debondable adhesive compositions maintain their adhesion at
  • temperatures of 300°C or greater are easily and cleanly debondable at ambient conditions, permit temporary bonding at high temperature processing conditions, and do not compromise handling or performance of the substrates.
  • the adhesive compositions maintain the adhesion thereof at temperatures of 300°C or greater, e.g., up to 440°C, and are mechanically debondable at room temperature at a force 5N/25mm or less, in some embodiments at a force of 3N/25mm or less, and in some embodiments at a force of 2N/25mm or less.
  • assemblies comprising a first article temporarily or permanently adhered to a second article by a cured aliquot of a formulation as described herein (see, for example, Figure 1).
  • Figure 1 illustrates an exemplary article prepared according to the methods of the present invention, where glass carrier 110 has applied thereto about 150 ⁇ slit coating 101, which in turn, has applied thereto one or more glass elements 109, which in turn, has applied thereto edge protection 102 or 108 and/or surface feature protection 103, 105 and 107, wherein glass elements 109 are typically spaced by about 5-8 mm (see 104).
  • methods of making a debondable assembly comprising: forming an assembly by bringing a substrate and a carrier in contact with one another, separated only by an aliquot of debondable adhesive composition; and thereafter curing the resulting assembly under conditions suitable to promote adhesion
  • the substrate is a fragile material
  • debondable adhesive composition comprises:
  • a reactive organic diluent which, when present, is present in the range of about 1 up to 50 wt%;
  • a non-reactive organic diluent which, when present, is present in the range of about 5 up to 40 wt%;
  • the composition is stable to a temperature of at least 200°C
  • composition is chemically resistant to acids, bases and solvents,
  • the composition undergoes low level of shrinkage upon curing thereof, the composition has high adhesion to suitable substrates, especially at elevated temperatures,
  • composition is heat and/or light curable
  • the composition is debondable at or about room temperature.
  • substrate refers to the target component for the fabrication processes
  • carrier refers to the support structure for the “substrate”.
  • the adhesive of this invention has been developed to provide adequate temporary adhesion of substrates to carriers at fabrication temperatures ranging from 300°C up to 450°C, and to debond with adhesive failure at the interface of the substrate and carrier at ambient temperature without damaging the substrate.
  • Maleimides, nadimides or itaconimides contemplated for use herein are compounds having the structure:
  • n 1-15
  • p 0-15
  • each R 2 is independently selected from hydrogen or lower alkyl (such as CM), and J is a monovalent or a polyvalent radical comprising organic or organosiloxane radicals, and
  • J is a monovalent or polyvalent radical selected from:
  • hydrocarbyl or substituted hydrocarbyl species typically having in the range of about 6 up to about 500 carbon atoms, where the hydrocarbyl species is selected from alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, aryl, alkylaryl, arylalkyl, aryalkenyl, alkenylaryl, arylalkynyl or alkynylaryl;
  • hydrocarbylene or substituted hydrocarbylene species typically having in the range of about 6 up to about 500 carbon atoms, where the hydrocarbylene species are selected from alkylene, alkenylene, alkynylene, cycloalkylene, cycloalkenylene, arylene, alkylarylene, arylalkylene, arylalkenylene, alkenylarylene, arylalkynylene or alkynylarylene,
  • heterocyclic or substituted heterocyclic species typically having in the range of about 6 up to about 500 carbon atoms, - polysiloxane, or
  • linker selected from covalent bond, -0-, - S-, -N -, -NR-C(O)-, -NR-C(0)-O, -NR-C(0)-NR-, -S-C(O)-, -S-C(0)-0-, -S-C(0)-NR- , -0-S(O) 2 -, -0-S(0) 2 -0-, -0-S(0) 2 -NR-, -O-S(O)-, -0-S(0)-0-, -0-S(0)-NR-,
  • compositions include those where J is oxyalkyl, thioalkyl, aminoalkyl, carboxylalkyl, oxyalkenyl, thioalkenyl, aminoalkenyl, carboxyalkenyl, oxyalkynyl, thioalkynyl, aminoalkynyl, carboxyalkynyl, oxycycloalkyl, thiocycloalkyl,
  • aminocycloalkyl carboxycycloalkyl, oxycloalkenyl, thiocycloalkenyl, aminocycloalkenyl, carboxycycloalkenyl, heterocyclic, oxyheterocyclic, thioheterocyclic, aminoheterocyclic, carboxyheterocyclic, oxyaryl, thioaryl, aminoaryl, carboxyaryl, heteroaryl, oxyheteroaryl, thioheteroaryl, aminoheteroaryl, carboxyheteroaryl, oxyalkylaryl, thioalkylaryl, aminoalkylaryl, carboxyalkylaryl, oxyarylalkyl, thioarylalkyl, aminoarylalkyl,
  • Exemplary maleimides, nadimides or itaconimides contemplated for use herein include:
  • the maleimide, nadimide or itaconimide is an imide- extended, low molecular weight bis-maleimide BMI oligomer having the structure:
  • compositions employed in the practice of the present invention comprise: at least 20 wt% of the BMI, nadimide or itaconimide oligomer, no greater than 80 wt% of the at least one ethylenically unsaturated co- monomer, and
  • compositions employed in the practice of the present invention comprise: at least 30 wt% of the BMI, nadimide or itaconimide oligomer, no greater than 70 wt% of the at least one ethylenically unsaturated co- monomer, and
  • compositions employed in the practice of the present invention comprise: at least 40 wt% of the BMI, nadimide or itaconimide oligomer, no greater than 60 wt% of the at least one ethylenically unsaturated co- monomer, and
  • compositions employed in the practice of the present invention comprise: at least 50 wt% of the BMI, nadimide or itaconimide oligomer, no greater than 50 wt% of the at least one ethylenically unsaturated co- monomer, and
  • compositions employed in the practice of the present invention comprise: at least 60 wt% of the BMI, nadimide or itaconimide oligomer, no greater than 40 wt% of the at least one ethylenically unsaturated co- monomer, and
  • compositions employed in the practice of the present invention comprise: at least 70 wt% of the BMI, nadimide or itaconimide oligomer, no greater than 30 wt% of the at least one ethylenically unsaturated co- monomer, and
  • compositions employed in the practice of the present invention comprise: at least 80 wt% of the BMI, nadimide or itaconimide oligomer, no greater than 20 wt% of the at least one ethylenically unsaturated co- monomer, and
  • compositions employed in the practice of the present invention comprise: at least 90 wt% of the BMI, nadimide or itaconimide oligomer, no greater than 10 wt% of the at least one ethylenically unsaturated co- monomer, and
  • compositions employed in the practice of the present invention comprise: at least 95 wt% of the BMI, nadimide or itaconimide oligomer, no greater than 5 wt% of the at least one ethylenically unsaturated co- monomer, and at least 1 wt% of the photoinitiator.
  • Ethylenically unsaturated co-monomers contemplated for use herein include (meth)acrylates, vinyl ethers, vinyl esters, styrenic compounds, allyl compounds, monofunctional maleimides, polybutadienes, cinnamates, crotonates, and the like, as well as mixtures of any two or more thereof.
  • (meth)acrylates difunctional (meth)acrylates, trifunctional (meth)acrylates, polyiunctional (meth)acrylates, and the like, as well as mixtures of any two or more thereof.
  • Exemplary monofunctional (meth)acrylates include phenylphenol acrylate, methoxypolyethylene acrylate, acryloyloxyethyl succinate, fatty acid acrylate,
  • methacryloyloxyethylphthalic acid phenoxyethylene glycol methacrylate, fatty acid methacrylate, ⁇ -carboxyethyl acrylate, isobornyl acrylate, isobutyl acrylate, t-butyl acrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, dihydrocyclopentadiethyl acrylate, cyclohexyl methacrylate, tricyclodecane acrylate, t-butyl methacrylate, dimethylaminoethyl methacrylate, diethylaminoethyl methacrylate, t-butylaminoethyl methacrylate, 4-hydroxybutyl acrylate, tetrahydrofurfuryl acrylate, benzyl acrylate, ethylcarbitol acrylate, phenoxyethyl acrylate, methoxytriethylene glycol acrylate,
  • Exemplary difunctional (meth)acrylates include hexanediol dimethacrylate, hydroxyacryloyloxypropyl methacrylate, hexanediol diacrylate, urethane acrylate, epoxyacrylate, bisphenol A-type epoxyacrylate, modified epoxyacrylate, fatty acid- modified epoxyacrylate, amine-modified bisphenol A-type epoxyacrylate, allyl methacrylate, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, ethoxylated bisphenol A dimethacrylate, tricyclodecanedimethanol dimethacrylate, glycerin dimethacrylate, polypropylene glycol diacrylate, propoxylated ethoxylated bisphenol A diacrylate, 9,9-bis(4-(2-acryloyloxyethoxy)phenyl) fluorene, tricyclodecane diacrylate, dipropylene glycol diacrylate, polypropylene glycol diacryl
  • Exemplary trifunctional (meth)acrylates include trimethylolpropane
  • trimethacrylate trimethylolpropane triacrylate, trimethylolpropane ethoxy triacrylate, polyether triacrylate, glycerin propoxy triacrylate, and the like.
  • Exemplary polyfunctional (meth)acrylates include dipentaerythritol polyacrylate, dipentaerythritol hexaacrylate, pentaerythritol tetraacrylate, pentaerythritolethoxy tetraacrylate, ditrimethylolpropane tetraacrylate, and the like.
  • Vinyl ethers contemplated for use herein include compounds having the structure:
  • CH 2 CH-OR where R is alkyl, substituted alkyl, alkenyl, substituted alkenyl, aryl, or substituted aryl.
  • Suitable commercially available vinyl ether resins include cyclohexane-dimethanol divinylether, dodecylvinylether, cyclohexyl vinylether, 2-ethylhexyl vinylether, dipropyleneglycol divinylether, hexanediol divinylether, octadecylvinylether, and butandiol divinylether, available from International Specialty Products (ISP); vinyl ethers sold under the tradenames VECTONMR 4010, 4020, 4030, 4040,4051, 4210, 4220, 4230, 4060, 5015 available from Sigma- Aldrich, Inc., and the like.
  • Vinyl esters contemplated for use herein include compounds having the structure:
  • CH 2 CH-0-C(0)-R' or
  • CH 2 CH-C(0)-0-R' where R' is alkyl or substituted alkyl.
  • Styrenic compounds contemplated for use herein include compounds having the structure:
  • Ph-CH CH 2 where Ph is phenyl or substituted phenyl.
  • Suitable styrenic resins include, for example, those commercially available styrene, substituted styrenics, divinyl benzene, diphenylethylene, and any other resins possessing styrenic functionality.
  • Such resins can be, for example, polyesters, carbamates, ureas, and the like.
  • Allyl compounds contemplated for use herein include compounds having the structure:
  • CH 2 CH-CH 2 -X where X is alkyl, substituted alkyl, aryl, substituted aryl, oxyalkyl, oxyaryl, NH- alkyl, N(alkyl) 2 , NH-aryl, N(aryl) 2 , thioalkyl, thioaryl, or N-substituted amide.
  • Suitable allyl ethers include those commercially available such as bisphenol A diallyl ether, bisphenol F diallyl ether, diallyl ether, diallyl carbonate, diallyl ethers derived from aliphatic polyols, and diallyl sulfide.
  • one or more additional monomers also referred to herein as reactive diluents
  • resins derived therefrom may be present in invention formulations, such as, for example, thiols, cyanate esters, oxetanes, polyesters, polyurethanes, polyimides, melamines, urea-formaldehydes, phenol-formaldehydes, and the like.
  • additional monomers also referred to herein as reactive diluents
  • resins derived therefrom may be present in invention formulations, such as, for example, thiols, cyanate esters, oxetanes, polyesters, polyurethanes, polyimides, melamines, urea-formaldehydes, phenol-formaldehydes, and the like.
  • such materials may be present in the range of about 0.1 up to about 60 wt % based on the total weight of the final formulation.
  • cyanate ester monomers contemplated for use in the practice of the present invention contain two or more ring forming cyanate (-0-C ⁇ N) groups which cyclotrimerize to form substituted triazine rings upon heating. Because no leaving groups or volatile byproducts are formed during curing of the cyanate ester monomer, the curing reaction is referred to as addition polymerization.
  • Suitable polycyanate ester monomers that may be used in the practice of the present invention include, for example, l,l-bis(4- cyanatophenyl)methane, 1 , 1 -bis(4-cyanatophenyl)ethane, 2,2-bis(4- cyanatophenyl)propane, bis(4-cyanatophenyl)-2,2-butane, 1 ,3-bis[2-(4-cyanato phenyl)propyl]benzene, bis(4-cyanatophenyl)ether, 4,4'-dicyanatodiphenyl, bis(4-cyanato- 3,5-dimethylphenyl)methane, tris(4-cyanatophenyl)ethane, cyanated novolak, l,3-bis[4- cyanatophenyl- 1 -(1 -methyl ethylidene)] benzene, cyanated phenoldicyclopentadiene ad
  • Monomers that can optionally be combined with polycyanate ester monomer(s) in accordance with the present invention are selected from those monomers which undergo addition polymerization.
  • Such monomers include vinyl ethers, divinyl ethers, diallyl ethers, dimethacrylates, dipropargyl ethers, mixed propargyl allyl ethers,
  • monomaleimides monomaleimides, bismaleimides, and the like.
  • monomers include cyclohexanedimethanol monovinyl ether, trisallylcyanurate, l,l-bis(4- allyloxyphenyl)ethane, 1 , 1 -bis(4-propargyloxyphenyl)ethane, 1 , 1 -bis(4-allyloxyphenyl-4'- propargyloxyphenyl)ethane, 3-(2,2-dimethyltrimethylene acetal)- 1 -maleimidobenzene, 2,2,4-trimethylhexamethylene- 1 ,6-bismaleimide, 2,2-bis[4-(4- maleimidophenoxy)phenyl]propane, and the like.
  • cyanate esters examples include those commercially available under the trade name PrimasetTM , which include PrimasetTM BA-3000 / S, PrimasetTM DT-7000, PrimasetTM LECY, PrimasetTM PT-15, PrimasetTM PT-30 / S, PrimasetTM PT 60 / S, PrimasetTM PTC-2500, and the like.
  • oxetanes i.e., 1,3-propylene oxides
  • oxetanes are heterocyclic organic compounds with the molecular formula C 3 H 6 0, having a four-membered ring with three carbon atoms and one oxygen atom.
  • the term oxetane also refers generally to any organic compound containing an oxetane ring. See, for example, Burkhard et al, in Angew.
  • oxetanes that can be included in the inventive compositions are those commercially available from Toagosei Co. Ltd. including OXT-221, OXT-212, OXT-101, OXT-121, and the like.
  • polyesters contemplated for use in the practice of the present invention refer to condensation polymers formed by the reaction of polyols (also known as polyhydric alcohols), with saturated or unsaturated dibasic acids.
  • polyols also known as polyhydric alcohols
  • Typical polyols used are glycols such as ethylene glycol; acids commonly used are phthalic acid and maleic acid.
  • Water, a by-product of esterification reactions, is continuously removed, driving the reaction to completion.
  • unsaturated polyesters and additives such as styrene lowers the viscosity of the resin.
  • the initially liquid resin is converted to a solid by cross- linking chains.
  • polyurethanes contemplated for use in the practice of the present invention refer to polymers composed of a chain of organic units joined by carbamate (urethane) links.
  • Polyurethane polymers are formed by reacting an isocyanate with a polyol. Both the isocyanates and polyols used to make polyurethanes contain on average two or more functional groups per molecule.
  • polyimides contemplated for use in the practice of the present invention refer to polymers composed of a chain of organic units joined by imide linkages (i.e., -C(0)-N(R)-C(0)-).
  • Polyimide polymers can be formed by a variety of reactions, i.e., by reacting a dianhydride and a diamine, by the reaction between a dianhydride and a diisocyanate, and the like.
  • melamines contemplated for use in the practice of the present invention refer to hard, thermosetting plastic materials made from melamine (i.e., 1,3,5- triazine-2,4,6-triamine) and formaldehyde by polymerization. In its butylated form, it can be dissolved in n-butanol and/or xylene. It can be used to cross-link with other resins such as alkyd, epoxy, acrylic, and polyester resins.
  • urea-formaldehydes contemplated for use in the practice of the present invention refers to a non-transparent thermosetting resin or plastic made from urea and formaldehyde heated in the presence of a mild base such as ammonia or pyridine.
  • phenol-formaldehydes contemplated for use in the practice of the present invention refer to synthetic polymers obtained by the reaction of phenol or substituted phenol with formaldehyde.
  • Particulate fillers contemplated for optional use in the practice of the present invention include silica, calcium silicate, aluminum hydroxide, magnesium hydroxide, calcium carbonate, magnesium carbonate, aluminum oxide (A1 2 0 3 ), zinc oxide (ZnO), magnesium oxide (MgO), aluminum nitride ( ⁇ ), boron nitride (BN), carbon nanotubes, diamond, clay, aluminosilicate, and the like, as well as mixtures of any two or more thereof.
  • the particulate filler is silica.
  • fillers optionally employed in invention formulations have a particle size in the range of about 0.005 ⁇ . (i.e., 5 nm) up to about 20 ⁇ . In certain
  • filler employed herein has a particle size in the range of about 0.1 ⁇ up to about 5 ⁇ .
  • compositions according to the present invention optionally comprise in the range of about 30 -75 wt % of the particulate filler. In some embodiments, compositions according to the present invention comprise in the range of about 40-60 wt % of the particulate filler.
  • formulations empolyed in the invention methods include one or more photoinitiator.
  • photoiniator is present in the range of about 0.1 up to 10 wt%.
  • Exemplary photoinitiators contemplated for use herein include acetophenone- based, thioxanthone-based, benzoin-based, peroxide-based and phosphine oxide-based photoinitiators.
  • Specific examples include diethoxyacetophenone, 4- phenoxydichloroacetophenone, benzoin, benzoin ethyl ether, benzoin isopropyl ether, benzyl dimethyl ketal, benzophenone, 4-phenyl benzophenone, acrylated benzophenone, thioxanthone, 2-ethylanthraquinone, triphosphine oxide (TPO), triphenyl phosphine oxide (TPPO), mono acylphosphine oxide (MAPO), bis acylphosphine oxide (BAPO), and the like.
  • TPO triphosphine oxide
  • TPPO triphenyl phosphine oxide
  • MAPO mono acylphosphine oxide
  • BAPO bis acylphosphine oxide
  • the Irgacur and Darocur lines of photoinitiators sold by BASF are examples of useful photoinitiators.
  • invention compositions may optionally further comprise in the range of about 0.2 - 2 wt % of a free-radical polymerization initiator. In certain embodiments, invention compositions may further comprise in the range of about 0.2-1 wt % of a free radical polymerization initiator.
  • Exemplary free radical initiators include peroxy esters, peroxy carbonates, hydroperoxides, alkylperoxides, arylperoxides, azo compounds, and the like.
  • invention compositions optionally further comprise one or more flow additives, adhesion promoters, rheology modifiers, toughening agents, fluxing agents, film flexibilizers, an epoxy-curing catalyst (e.g., imidazole), a curing agent (e.g., a radical initiator such as dicumyl peroxide), radical polymerization regulator (e.g., 8-hydroxy quinoline), and/or radical stabilizer, as well as mixtures of any two or more thereof.
  • an epoxy-curing catalyst e.g., imidazole
  • a curing agent e.g., a radical initiator such as dicumyl peroxide
  • radical polymerization regulator e.g., 8-hydroxy quinoline
  • radical stabilizer as well as mixtures of any two or more thereof.
  • flow additives refers to compounds which modify the viscosity of the formulation to which they are introduced.
  • exemplary compounds which impart such properties include silicone polymers, ethyl acrylate/2-ethylhexyl acrylate copolymers, alkylol ammonium salts of phosphoric acid esters of ketoxime, and the like, as well as combinations of any two or more thereof.
  • adheresion promoters refers to compounds which enhance the adhesive properties of the formulation to which they are introduced.
  • adheresion depromoters refers to compounds which reduce the adhesive properties of the formulation to which they are introduced.
  • rheology modifiers refers to additives which modify one or more physical properties of the formulation to which they are introduced.
  • toughening agents refers to additives which enhance the impact resistance of the formulation to which they are introduced.
  • the term "radical stabilizers” refers to compounds such as hydroquinones, benzoquinones, hindered phenols, hindered amines (e.g., thiocarbonylthio- based compounds), benzotriazole-based ultraviolet absorbers, triazine-based ultraviolet absorbers, benzophenone-based ultraviolet absorbers, benzoate-based ultraviolet absorbers, hindered amine -based ultraviolet absorbers, nitroxide radical-based
  • invention compositions comprise in the range of about 0.1 - 1 wt % of the radical stabilizer. In some embodiments, invention compositions comprise in the range of about 0.1-0.6 wt % of the radical stabilizer.
  • invention compositions may also optionally contain one or more non-reactive diluents.
  • non-reactive diluent When non-reactive diluent is present, invention compositions comprise in the range of about 10 - 50 wt % thereof, relative to the total composition. In certain embodiments, invention compositions comprise in the range of about 20-40 wt % non- reactive diluent.
  • non-reactive diluents contemplated for use herein, when present include aromatic hydrocarbons (e.g., benzene, toluene, xylene, and the like), saturated hydrocarbons (e.g., hexane, cyclohexane, heptane, tetradecane), chlorinated hydrocarbons (e.g., methylene chloride, chloroform, carbon tetrachloride, dichloroethane,
  • aromatic hydrocarbons e.g., benzene, toluene, xylene, and the like
  • saturated hydrocarbons e.g., hexane, cyclohexane, heptane, tetradecane
  • chlorinated hydrocarbons e.g., methylene chloride, chloroform, carbon tetrachloride, dichloroethane,
  • ethers e.g., diethyl ether, tetrahydrofuran, dioxane, glycol ethers, monoalkyl or dialkyl ethers of ethylene glycol, and the like
  • polyols e.g., polyethylene glycol, propylene glycol, polypropylene glycol, and the like
  • esters e.g., ethyl acetate, butyl acetate, methoxy propyl acetate, and the like
  • dibasic esters alpha- terpineol, beta-terpineol, kerosene, dibutylphthalate, butyl carbitol, butyl carbitol acetate, carbitol acetate, ethyl carbitol acetate, hexylene glycol, high boiling alcohols and esters thereof, glycol ethers, ketones (e.g., acetone, methyl e
  • Hydroxy-containing diluents contemplated for use herein include water and hydroxy-containing compounds having a d up to about a C 10 backbone.
  • Exemplary hydroxy-containing diluents include water, methanol, ethanol, propanol, ethylene glycol, propylene glycol, glycerol, terpineol, and the like, as well as mixtures of any two or more thereof.
  • the amount of hydroxy-containing diluent contemplated for use in accordance with the present invention can vary widely, typically falling in the range of about 5 up to about 80 weight percent of the composition. In certain embodiments, the amount of hydroxy-containing diluent falls in the range of about 10 up to 60 weight percent of the total composition. In some embodiments, the amount of hydroxy-containing diluent falls in the range of about 20 up to about 50 weight percent of the total composition.
  • invention compositions typically comprise:
  • invention compositions typically comprise:
  • invention compositions may further comprise one or more of:
  • invention compositions may further comprise one or more of:
  • debondable assemblies comprising a substrate and a carrier reversibly bonded by the methods described herein (see, for example, Figure 1).
  • debondable adhesive composition comprises:
  • BMI BMI, nadimide or itaconimide oligomer(s);
  • a reactive organic diluent which, when present, is present in the range of about 1 up to 50 wt%
  • a non-reactive organic diluent which, when present, is present in the range of about 5 up to 40 wt%
  • the composition is stable to a temperature of at least 200°C
  • composition is chemically resistant to acids, bases and solvents,
  • the composition undergoes low level of shrinkage upon curing thereof, the composition has high adhesion to suitable substrates, especially at elevated temperatures,
  • composition is heat and/or light curable
  • the composition is debondable at or about room temperature.
  • debondable adhesive composition comprises:
  • BMI BMI, nadimide or itaconimide oligomer(s);
  • a reactive organic diluent which, when present, is present in the range of about 1 up to 50 wt%;
  • a non-reactive organic diluent which, when present, is present in the range of about 5 up to 40 wt%;
  • the composition is stable to a temperature of at least 200°C, the composition is chemically resistant to acids, bases and solvents, the composition undergoes low level of shrinkage upon curing thereof, the composition has high adhesion to suitable substrates, especially at elevated temperatures,
  • composition is heat and/or light curable
  • the composition is debondable at or about room temperature.
  • Fragile carriers contemplated for use herein include glass, ceramic, stainless steel, silicon wafers, polyimide films, polyester films, and the like.
  • Fragile carriers contemplated for use herein typically have a thickness in the range of about 0.6 up to 1.3 mm.
  • carriers employed herein may optionally be chemically and/or physically pre-treated to improve the adhesion thereto.
  • Suitable substrates contemplated for use herein include polyethylene
  • terephthalates polymethyl methacrylates, polyethylenes, polypropylenes, polycarbonates, epoxy resins, polyimides, polyamides, polyesters, glass, Si die with silicon nitride passivation, Si die with polyimide passivation, BT substrates, bare Si, SR4 substrates, SR5 substrates, and the like.
  • debondable adhesive compositions comprising:
  • BMI BMI, nadimide or itaconimide oligomer(s);
  • a reactive organic diluent which, when present, is present in the range of about 1 up to 50 wt%;
  • a non-reactive organic diluent which, when present, is present in the range of about 5 up to 40 wt%;
  • the composition is stable to a temperature of at least 200°C, the composition is chemically resistant to acids, bases and solvents, the composition undergoes low level of shrinkage upon curing thereof,
  • the composition has high adhesion to suitable substrates, especially at elevated temperatures,
  • composition is heat and/or light curable
  • the composition is debondable at or about room temperature.
  • Two preferred properties for debondable adhesives according to the present invention are that they are stable and maintain their integrity at temperatures at 300°C and above, to as high as 440°C, and that they easily and cleanly debond at ambient temperature.
  • visual evidence of fine line cracking at high temperature indicates instability, and evidence of peel strength higher than 5N/25mm indicates that the adhesive can not be cleanly removed.
  • the test vehicle was an assembly of two glass slides 5cm x 7.5cm, from VWR International with the adhesive composition deposed between the two slides.
  • the assemblies were placed on a 150°C Cole Parmer Digital hotplate for 30 minutes in air to harden the adhesive.
  • Weight loss of the adhesive in test vehicles was used as another measure of stability. The lower the weight loss, the more stable the adhesive. Samples were weighed before and after heating for one hour at 400°C using a Thermogravimetric Analyzer (TGA), Pyris 1 from Perkin Elmer and the weight loss calculated. A weight loss of less than 9.6% is deemed acceptable and the adhesive deemed stable. In one embodiment, a preferred weight loss is 7.3% or less.
  • TGA Thermogravimetric Analyzer
  • Patents and publications mentioned in the specification are indicative of the levels of those skilled in the art to which the invention pertains. These patents and publications are incorporated herein by reference to the same extent as if each individual application or publication was specifically and individually incorporated herein by reference.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

L'invention concerne des compositions adhésives décollables comprenant : (A) un ou plusieurs oligomères de bis-maléimide (BMI), de nadimide ou d'itaconimide, (B) au moins un comonomère éthyléniquement insaturé (par exemple, des comonomères choisis dans le groupe constitué par les acrylates, les méthacrylates, les vinyléthers, les esters de vinyle, les composés styréniques, des composés d'allyle, les polybutadiènes, les cinnamates, les crotonates et les mélanges de deux ou plus de ceux-ci) et (C) un photo-initiateur. Dans un autre mode de réalisation, la présente invention concerne un assemblage d'un substrat et d'un support pour le substrat, dans lequel la composition adhésive décollable lie temporairement les substrats, et un procédé pour fabriquer ledit assemblage. Les compositions adhésives décollables conservent leur adhérence à des températures de 300°C ou plus, sont facilement et proprement décollables à température ambiante, permettent une liaison temporaire à des conditions de traitement élevées et ne compromettent pas la manipulation ou les performances des substrats.
PCT/US2017/016422 2016-02-04 2017-02-03 Adhésifs décollables et utilisation à haute température correspondante Ceased WO2017136669A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2018540846A JP2019511587A (ja) 2016-02-04 2017-02-03 剥離可能接着剤及びその高温使用
EP17748235.3A EP3411447A4 (fr) 2016-02-04 2017-02-03 Adhésifs décollables et utilisation à haute température correspondante
KR1020187021592A KR20180123009A (ko) 2016-02-04 2017-02-03 탈결합가능한 접착제 및 그의 고온 용도
CN201780010024.7A CN108699411B (zh) 2016-02-04 2017-02-03 可脱粘粘合剂及其高温用途
US16/053,920 US20180355231A1 (en) 2016-02-04 2018-08-03 Debondable adhesives and the high temperature use thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU62291181 2016-02-04
RU62/291,181 2016-02-04

Related Child Applications (1)

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US16/053,920 Continuation US20180355231A1 (en) 2016-02-04 2018-08-03 Debondable adhesives and the high temperature use thereof

Publications (1)

Publication Number Publication Date
WO2017136669A1 true WO2017136669A1 (fr) 2017-08-10

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
TWI655766B (zh) * 2017-09-01 2019-04-01 財團法人塑膠工業技術發展中心 包含可重複改變黏性光感膠的有機發光二極體顯示構造及其製造方法
CN113646393A (zh) * 2019-06-28 2021-11-12 三菱瓦斯化学株式会社 树脂组合物、树脂片、多层印刷电路板和半导体装置
EP3916025A4 (fr) * 2019-06-28 2022-06-01 Mitsubishi Gas Chemical Company, Inc. Composition de résine, feuille de résine, circuit imprimé multicouche et dispositif semi-conducteur

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WO2003072673A2 (fr) * 2002-02-28 2003-09-04 Henkel Loctite Corporation Compositions adhesives contenant des espaceurs organiques et procedes d'utilisation desdites compositions
WO2015000150A1 (fr) * 2013-07-03 2015-01-08 Henkel IP & Holding GmbH Adhésif décollable à haute température

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WO2003072673A2 (fr) * 2002-02-28 2003-09-04 Henkel Loctite Corporation Compositions adhesives contenant des espaceurs organiques et procedes d'utilisation desdites compositions
WO2015000150A1 (fr) * 2013-07-03 2015-01-08 Henkel IP & Holding GmbH Adhésif décollable à haute température

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI655766B (zh) * 2017-09-01 2019-04-01 財團法人塑膠工業技術發展中心 包含可重複改變黏性光感膠的有機發光二極體顯示構造及其製造方法
CN113646393A (zh) * 2019-06-28 2021-11-12 三菱瓦斯化学株式会社 树脂组合物、树脂片、多层印刷电路板和半导体装置
EP3916025A4 (fr) * 2019-06-28 2022-06-01 Mitsubishi Gas Chemical Company, Inc. Composition de résine, feuille de résine, circuit imprimé multicouche et dispositif semi-conducteur
US11466123B2 (en) 2019-06-28 2022-10-11 Mitsubishi Gas Chemical Company, Inc. Resin composition, resin sheet, multilayer printed wiring board, and semiconductor device
CN113646393B (zh) * 2019-06-28 2023-09-19 三菱瓦斯化学株式会社 树脂组合物、树脂片、多层印刷电路板和半导体装置

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