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EP2844683A1 - Procédé pour améliorer la stabilité à l'hydrolyse dans des systèmes à base de polyuréthane (pu) - Google Patents

Procédé pour améliorer la stabilité à l'hydrolyse dans des systèmes à base de polyuréthane (pu)

Info

Publication number
EP2844683A1
EP2844683A1 EP13715156.9A EP13715156A EP2844683A1 EP 2844683 A1 EP2844683 A1 EP 2844683A1 EP 13715156 A EP13715156 A EP 13715156A EP 2844683 A1 EP2844683 A1 EP 2844683A1
Authority
EP
European Patent Office
Prior art keywords
methyl
radical
alkyl
independently
diisocyanate
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.)
Withdrawn
Application number
EP13715156.9A
Other languages
German (de)
English (en)
Inventor
Wilhelm Laufer
Armin Eckert
Uwe Haas
Uwe WUERTZ
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.)
Rhein Chemie Rheinau GmbH
Original Assignee
Rhein Chemie Rheinau 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 Rhein Chemie Rheinau GmbH filed Critical Rhein Chemie Rheinau GmbH
Priority to EP13715156.9A priority Critical patent/EP2844683A1/fr
Publication of EP2844683A1 publication Critical patent/EP2844683A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
    • C08G18/797—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing carbodiimide and/or uretone-imine groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/02—Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
    • C08G18/025—Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only the polymeric products containing carbodiimide groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/16—Catalysts
    • C08G18/22—Catalysts containing metal compounds
    • C08G18/24—Catalysts containing metal compounds of tin
    • C08G18/242—Catalysts containing metal compounds of tin organometallic compounds containing tin-carbon bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
    • C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6633—Compounds of group C08G18/42
    • C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
    • C08G18/7621—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/775—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur sulfur
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/776—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur phosphorus
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/29—Compounds containing one or more carbon-to-nitrogen double bonds

Definitions

  • the invention relates to novel processes for improving the hydrolytic stability in polyurethane (PU) -based systems, preferably PU adhesives, PU casting resins, PU elastomers or PU foams.
  • Polyurethanes are formed by polyaddition reaction of polyisocyanates with polyhydric alcohols, the polyols, almost quantitatively.
  • the course of the reaction between diisocyanate and polyol depends on the molar ratio of the components. Intermediates with the desired average molecular weight and desired end groups can be obtained. These intermediates can then be reacted (chain-extended) with a diol or diamine at a later time to form the desired polyurethane or polyurethane-polyurea hybrid.
  • the intermediates are generally referred to as prepolymers. Suitable polyols for the preparation of prepolymers are, in addition to the diols, also polyalkylene glycol ethers, polyether esters or polyesters having terminal hydroxyl groups (polyester polyols).
  • polyester polyols are preferably used.
  • the polyether esters or polyesters having terminal hydroxyl groups prepared by polycondensation of simple diols and carboxylic acids still contain free carboxylic acids. These catalyze the reaction between the ester groups contained in the polymer and water, resulting in low hydrolytic stability.
  • the object of the present invention was therefore to provide processes for improving the hydrolytic stability of polyurethane (PU) -based systems, which are particularly suitable for the production of PU adhesives, PU casting resins, PU elastomers or PU foams, without thereby Materials are needed that are expensive and difficult to manufacture.
  • PU polyurethane
  • the present invention therefore provides a process for improving the hydrolytic stability in polyurethane (PU) -based systems, in which in
  • At least one polyol selected from the group of polyesterpolyols and / or polyetheresterpolyols,
  • R 1 , R 3 and R 5 independently of one another denote H or methyl
  • R 2 , R 4 independently of one another are H, methyl, a radical NH-C (O) -OR 10 , in which
  • R 10 is C r C 4 alkyl, or for
  • a radical is - (CH 2 ) h -O - [(CH 2 ) k -O] g -R 11 ,
  • R 6 , R 7 , R 8 and R 9 are independently H or methyl
  • R 1 , R 3 and R 5 are independently H or methyl
  • R 2 , R 4 independently of one another are H, methyl or a radical -NH-C (O) -OR 10 , where R 10 is C 1 -C 4 -alkyl or a radical
  • R 11 is H or C r C 4 -alkyl
  • R 1 , R 3 , R 4 , R 5 are preferably H or methyl, very particularly preferably R 1 , R 3 , R 5 are methyl and R 4 is H, where
  • R 2 is a radical -NH-C (O) -OR 10 wherein R 10 is -C r C 4 alkyl or a radical
  • R 11 is H or C r C 4 alkyl.
  • R 3 or R 5 is methyl or H
  • R 2 is a radical -NH-C (O) -OR 10 , where R 10 is -C r C 4 -alkyl or a radical - (CH 2 ) h - (O- (CH 2 ) k -O) g -R u stands
  • R 11 is H or C r C 4 alkyl
  • R 1 and R 4 stand for H.
  • R 11 is H or Ci-C 4 alkyl, wherein at least one of R 6 'R 7 , R 8 and R 9 independently
  • R 1 , R 3 , R 4 , R 5 is H or methyl, more preferably R 1 , R 3 , R 5 is methyl and R 4 is H,
  • R 2 , R 4 is H, methyl or a radical -NH-C (O) -OR 10 , where R 10 is C r C 4 -alkyl or a radical - (CH 2 ) h -O - [(CH 2 ) k -0] g -R u ,
  • R 11 is H or C 1 -C 4 -alkyl, where at least one of the radicals R 6 R 7 , R 8 and R 9 is independently H Furthermore, it is preferred that R 1 , R 3 , R 4 , R 5 is H or methyl, particularly preferably methyl,
  • R 2 has the meaning of -NH-C (0) -OR 10, wherein R 10 is -C r C 4 alkyl or a radical - (CH 2) h -0 - [(CH 2) k -0] g -R u stands,
  • R 11 is H or C r C 4 alkyl
  • R 6 , R 7 , R 8 and R 9 are independently H or methyl and more preferably at least one of R 6 , R 7 or R 9 is methyl.
  • R 3 or R 5 has the meaning of methyl or H
  • R 2 is a radical -NH-C (O) -OR 10 , wherein R 10 is C 1 -C 4 -alkyl or a radical
  • R 11 denotes H or C r C 4 -alkyl
  • R 1 , R 4 are H and
  • R 6 'R 7 , R 8 and R 9 are independently H or methyl, preferably at least one of R 6 , R 7 or R 9 is methyl.
  • At least one of R 7 or R 9 has the meaning of methyl.
  • the compounds of the formula (I) is commercially available materials, for example from Rhein Chemie Rheinau GmbH, for example, are available under the trade name Stabaxol ®, Hycasyl ®.
  • mixtures of several carbodiimides of which at least one of the formula (I) corresponds.
  • the calculation of the mean value for m may also result in fractional numbers.
  • Polyols according to the invention are selected from the group of polyester polyols and / or polyetheresterpolyols.
  • the polyester polyols according to the invention are compounds which preferably have a molecular weight in (g / mol) of up to 2000, preferably in the range of 500 to 2000 and more preferably in the range of 500 to 1000.
  • polyester polyols in the context of the invention encompasses both compounds having two or three hydroxyl groups per molecule and compounds having more than three hydroxyl groups per molecule.
  • Preferred polyols are polyester polyols. It is advantageous if the polyesterpolyols and / or polyetheresterpolyols have an OH number of up to 200, preferably between 20 and 150 and more preferably between 50 and 15.
  • polyester polyols which are reaction products of various diols with aromatic or aliphatic dicarboxylic acids and / or polymers of lactones.
  • aromatic dicarboxylic acids which can be used to form suitable polyester polyols.
  • Particularly preferred are terephthalic acid, Isophthalic acid, phthalic acid, phthalic anhydride and substituted dicarboxylic acid compounds with benzene nucleus.
  • Preferred aliphatic dicarboxylic acids are those which can be used to form suitable polyester polyols, more preferably sebacic acid, adipic acid and glutaric acid.
  • Preferred as polymers of lactones are those which can be used to form suitable polyester polyols, more preferably polycaprolactone.
  • Both the dicarboxylic acids and the polymers of lactones are commercially available substances. Also particularly preferred are those diols which can be used to form suitable polyester polyols, most preferably ethylene glycol, butanediol, neopentyl glycol, hexanediol, propylene glycol, dipropylene glycol, diethylene glycol and cyclohexane dimethanol.
  • At least one polyetherester polyol is used.
  • the reaction products of various aforementioned polyols with aromatic or aliphatic dicarboxylic acids and / or polymers of lactones are preferred.
  • polyester polyols and / or polyether ester polyols is commercially available compounds, which are available from Bayer MaterialScience AG under the trade name Baycoll ® or Desmophen ®.
  • diisocyanates aromatic and aliphatic diisocyanates are preferred. Particular preference is given to toluene-2,4-diisocyanate, toluene-2,6-diisocyanate, phenylene diisocyanate, 4,4-diphenylmethane diisocyanate, methylene bis (4-phenylisocynate), naphthalene-1,6-diisocyanate, tetramethylene-1, Diisocyanate and / or hexamethylene-l, 6-diisocyanate, most preferably toluene-2,4-diisocyanate and toluene-2,6-diisocyanate.
  • diisocyanate is commercially available compounds, which are available from Bayer MaterialScience AG under the trade name Desmodur ®.
  • the composition additionally contains at least one diamine and / or diol.
  • Diamines used for chain extension are 2-methylpropyl-3,5-diamino-4-chlorobenzoate, bis (4,4'-amino-3-chlorophenyl) -methane, 3,5-dimethylthio-2, 4-toluene diamine, 3,5-dimethylthio-2,4-toluene diamine, 3,5-diethyl-2,4-toluene diamine, 3,5-diethyl-2,6-toluene diamine, 4,4'-methylene bis ( 3-chloro-2,6-diethylaniline) and 1,3-propanediol bis (4-aminobenzoate).
  • diols butanediol, neopentyl glycol, hexanediol, propylene glycol, dipropylene glycol, diethylene glycol and / or cyclohexanedimethanol are preferred. Particularly preferred are 1,3-butanediol or 1,6-hexanediol.
  • chain extension diamines or diols is commercially available compounds which are available from Rhein Chemie Rheinau GmbH under the trade name Addolink ®.
  • the catalysts used are preferably dibutyltin dilaurates or triethylenediamine in dipropylene glycol.
  • the ratio of carbodiimide to polyol is preferably 0.1-5, more preferably 1-3 parts by weight per 100 parts by weight of polyol.
  • the ratio of diisocyanate to polyol is preferably from 20 to 50 to 100 parts by weight, more preferably 30 to 100 parts by weight.
  • the composition in addition to the polyester polyol and / or Polyetherestherpolyol and the carbodiimide and the diisocyanate additionally contains at least one diamine and / or diol
  • the amount of catalyst is 0.01-1% by weight, based on the composition.
  • the polyurethane (PU) -based systems produced by this process are characterized by increased hydrolytic stability.
  • Baycoll AV ® 2113 a branched polyester polyol having an OH number of 110 mg KOH / g and an acid number of 0.83 mg KOH / g, from Bayer MaterialScience AG.
  • Stabaxol ® P 200 a polymeric aromatic carbodiimide-based Tetramethylxylol- diisocyanate from Rhein Chemie Rheinau GmbH.
  • Stabaxol ® I a monomeric carbodiimide based on 2,6-diisopropylphenyl Rhein Chemie Rheinau GmbH.
  • Desmodur ® PU 0129 a 2.4 / 4.4 diphenylmethane diisocyanate isomer mixture.
  • Addolink ® B a 1, 4-butanediol from Rheinchemie Rheinau GmbH as a diol component.
  • Addocat ® 201 a dibutyltin Rhein Chemie Rheinau GmbH, as a catalyst.
  • Carbodilite HMV-8 ® CA a polymeric aliphatic carbodiimide Nisshinbo Industries, INC.
  • part of the formulation contains a molecular sieve for moisture adsorption.
  • Desmocoll® ® 140 A largely linear hydroxyl with a hydroxyl content ⁇ 0.1 from Bayer Material Science AG..
  • Baycoll ® AS 2060 a weakly branched polyester polyol having a hydroxyl number of 60 ⁇ 3 mg KOH / g and an acid number of ⁇ 2.0 mg KOH / g, available from Bayer Material Science AG.
  • Desmodur ® RFE a solution of tris (p-isocyanatophenyl) thiophosphate in ethyl acetate, having an NCO content of 7.2 ⁇ 0.2% as isocyanate curing agent from Bayer Material Science AG.
  • Example 1 Example 1:
  • Composition C 100 g of the liquid at room temperature Baycoll AV ® 2113 was mixed with 0.6 g Stabaxol ® I and stored at 30 ° C for 24 h.
  • Mixture D 100 g of the liquid at room temperature Baycoll AV ® 2113 was mixed with 0.6 g Stabaxol ® P 200 stored at 30 ° C for 24 h.
  • the mixtures were processed according to the one-shot method, that is premixed with molecular sieve, Addocat ® 201 and Addolink ® B with the diisocyanate (Desmodur ® PU 0129) reacted.
  • the still liquid after a few minutes to a solid elastomer-reacting mixture, was poured into a test mold heated to 30 ° C, demolded after lh and 16h at 100 ° C conditioned.
  • test plates of mixtures I to IV thus prepared, standard test specimens were punched out after 7 days of storage at 22 ° C.
  • the stamped standard specimens were stored under water at a temperature of 80 ° C for 4 days.
  • the tensile strength of the specimens stored in water was measured every 24 hours.
  • Table 3 shows percent relative tensile strength starting at day 0 at 100%.
  • III (V) 100 90 80 70 60
  • Mixture B2 (comparative): 14g of Desmocoll 140 ® were dissolved at 85 ° C in 75g of ethyl acetate. On cooling was added 7g Baycoll ® AS 2060th In the cooled mixture, 0.32 g of Stabaxol ® I was dissolved with stirring and stored at room temperature for five days.
  • Mixture D2 (for the preparation of the mixture according to the invention): 14 g of Desmocoll® 140 were dissolved at 85 ° C. in 75 g of ethyl acetate. On cooling was added 7g Baycoll ® AS 2060th 0.31 g of the CDI 1 was dissolved in the cooled mixture with stirring and stored at room temperature for five days.
  • the mixtures A2, B2, C2 and D2 were mixed at room temperature in each case with 4 g of the isocyanate hardener Desmodur ® RFE and mixed.
  • the adhesives I, II, III and IV thus prepared were applied by hand with a wire-wound squeegee with ⁇ gap on a commercial, 23 ⁇ thick, not pretreated DIN A4-sized PET sheet, the top 50mm of the sheet due of a later to be removed protective strips were not provided with adhesive.
  • the solvent of the adhesive ethyl acetate
  • a commercial, 25 ⁇ thick, not pretreated aluminum foil was laminated by hand. The resulting laminate was pressed with a pressure of "

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

L'invention concerne de nouveaux procédés pour améliorer la stabilité à l'hydrolyse dans des systèmes à base de polyuréthane (PU), de préférence des adhésifs PU, des résines de coulée PU, des élastomères PU ou des mousses PU.
EP13715156.9A 2012-05-03 2013-03-22 Procédé pour améliorer la stabilité à l'hydrolyse dans des systèmes à base de polyuréthane (pu) Withdrawn EP2844683A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13715156.9A EP2844683A1 (fr) 2012-05-03 2013-03-22 Procédé pour améliorer la stabilité à l'hydrolyse dans des systèmes à base de polyuréthane (pu)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP20120166641 EP2660259A1 (fr) 2012-05-03 2012-05-03 Nouvelles compositions contenant des carbodiimides, un de leurs procédés de fabrication et d'utilisation
EP13715156.9A EP2844683A1 (fr) 2012-05-03 2013-03-22 Procédé pour améliorer la stabilité à l'hydrolyse dans des systèmes à base de polyuréthane (pu)
PCT/EP2013/056155 WO2013164135A1 (fr) 2012-05-03 2013-03-22 Procédé pour améliorer la stabilité à l'hydrolyse dans des systèmes à base de polyuréthane (pu)

Publications (1)

Publication Number Publication Date
EP2844683A1 true EP2844683A1 (fr) 2015-03-11

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EP13715156.9A Withdrawn EP2844683A1 (fr) 2012-05-03 2013-03-22 Procédé pour améliorer la stabilité à l'hydrolyse dans des systèmes à base de polyuréthane (pu)
EP13711438.5A Active EP2844681B1 (fr) 2012-05-03 2013-03-22 Procede pour controler (prolongation) la vie en pot de systemes a base de polyurethane (pu) a chaine allongee

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KR (2) KR101993498B1 (fr)
CN (3) CN104350077A (fr)
BR (2) BR112014027440A2 (fr)
CA (2) CA2872090A1 (fr)
ES (1) ES2588830T3 (fr)
IN (1) IN2014DN09041A (fr)
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JP6997761B2 (ja) * 2016-08-09 2022-01-18 コベストロ、ドイチュラント、アクチエンゲゼルシャフト シラン官能性ポリマーポリウレタン
KR102880765B1 (ko) * 2019-03-07 2025-11-03 바스프 에스이 카르보디아미드 화학 기반의 접착제
PE20241729A1 (es) * 2021-12-08 2024-08-19 Covestro Deutschland Ag Elastomero de poliuretano con una resistencia a la hidrolisis mejorada

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RU2014148485A (ru) 2016-06-27
US9321879B2 (en) 2016-04-26
CA2871712A1 (fr) 2013-11-07
IN2014DN09041A (fr) 2015-05-22
ES2588830T3 (es) 2016-11-07
EP2844681A1 (fr) 2015-03-11
BR112014027440A2 (pt) 2017-06-27
EP2660259A1 (fr) 2013-11-06
BR112014027441A2 (pt) 2017-06-27
CN104364284A (zh) 2015-02-18
RU2014148484A (ru) 2016-06-20
KR20150003389A (ko) 2015-01-08
WO2013164134A1 (fr) 2013-11-07
CN104364284B (zh) 2016-06-08
KR20150003388A (ko) 2015-01-08
CA2872090A1 (fr) 2013-11-07
CN104350077A (zh) 2015-02-11
EP2844681B1 (fr) 2016-07-13
CN108299622A (zh) 2018-07-20
MX368470B (es) 2019-10-03
JP2015516003A (ja) 2015-06-04
JP2015516491A (ja) 2015-06-11
WO2013164135A1 (fr) 2013-11-07
KR101993498B1 (ko) 2019-06-26
US20150133623A1 (en) 2015-05-14
MX2014013359A (es) 2015-05-15
US20150126688A1 (en) 2015-05-07

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