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WO2025136652A1 - Composition d'amortissement du bruit appliquée liquide - Google Patents

Composition d'amortissement du bruit appliquée liquide Download PDF

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Publication number
WO2025136652A1
WO2025136652A1 PCT/US2024/058344 US2024058344W WO2025136652A1 WO 2025136652 A1 WO2025136652 A1 WO 2025136652A1 US 2024058344 W US2024058344 W US 2024058344W WO 2025136652 A1 WO2025136652 A1 WO 2025136652A1
Authority
WO
WIPO (PCT)
Prior art keywords
amine
composition
range
particles
concentration
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.)
Pending
Application number
PCT/US2024/058344
Other languages
English (en)
Inventor
Ian D. Robertson
Matthew PADAON
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.)
Dow Global Technologies LLC
Original Assignee
Dow Global Technologies LLC
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 Dow Global Technologies LLC filed Critical Dow Global Technologies LLC
Publication of WO2025136652A1 publication Critical patent/WO2025136652A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/02—Emulsion paints including aerosols
    • C09D5/024—Emulsion paints including aerosols characterised by the additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09D133/062—Copolymers with monomers not covered by C09D133/06
    • C09D133/064—Copolymers with monomers not covered by C09D133/06 containing anhydride, COOH or COOM groups, with M being metal or onium-cation
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/18—Homopolymers or copolymers of nitriles
    • C09D133/20—Homopolymers or copolymers of acrylonitrile
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/66—Additives characterised by particle size
    • C09D7/69—Particle size larger than 1000 nm
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • 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
    • C08K5/17—Amines; Quaternary ammonium compounds

Definitions

  • the present invention relates to a composition suitable liquid applied sound damping (LASD) coatings.
  • the composition forms a coating with little or blister formation when dried above the boiling point of water.
  • Coatings for LASD applications are designed to reduce vibration in rigid structures through viscoelastic damping.
  • vibration is typically reduced by applying a coating of a highly viscous water-borne dispersion of a viscoelastic polymer and mineral filler on the floor pan of the vehicle, then drying the coating at a temperature between 120 °C and 190 °C.
  • water vaporizes with concomitant rapid expansion of the coating, which sometimes results in the formation of large and undesired cavities within the coating.
  • These craters are commonly referred to as “pita defects” because the structure resembles a pita bread pocket.
  • the present invention addresses a need in the art by providing a composition comprising an aqueous dispersion of a) polymer particles; b) a rheology modifier; c) extender particles; and d) a dialkanol amine or trialkanol amine; wherein the polymer particles have a calculated T g in the range of from -30 °C to 60 °C; and wherein the composition has a Brookfield viscosity at 25 °C in the range of from 200,000 cP to 20,000,00 cP.
  • composition of the present invention is useful as coatings in LASD applications. Detailed Description of the Invention
  • the present invention is a composition
  • a composition comprising an aqueous dispersion of a) polymer particles; b) a rheology modifier; c) extender particles; and d) a dialkanol amine or trialkanol amine; wherein the polymer particles have a calculated T g in the range of from -30 °C to 60 °C; and wherein the composition has a Brookfield viscosity at 25 °C in the range of from 200,000 cP to 20,000,00 cP.
  • Suitable aqueous dispersions of polymer particles include acrylic latexes, styrene- acrylic latexes, and vinyl esters such as vinyl acetate or vinyl versatate.
  • the T g of the polymer particles as calculated by the Fox equation, is in the range of from -30 °C or from -20 °C or from -10 °C, to 60 °C or to 40 °C or to 30 °C.
  • the concentration of the polymer particles is typically in the range of from 20 to 40 weight percent, based on the weight of the composition.
  • Suitable rheology modifiers include hydrophobically modified ethylene oxide urethanes (HEURs); alkali -swellable emulsions (ASEs); hydrophobically modified alkali-swellable emulsions; (HASEs); and hydroxyethyl cellulose.
  • HEURs hydrophobically modified ethylene oxide urethanes
  • ASEs alkali -swellable emulsions
  • HASEs hydrophobically modified alkali-swellable emulsions
  • HASEs hydrophobically modified alkali-swellable emulsions
  • HASEs hydrophobically modified alkali-swellable emulsions
  • HASEs hydrophobically modified alkali-swellable emulsions
  • HASEs hydrophobically modified alkali-swellable emulsions
  • HASEs hydrophobically modified alkali-swellable emulsions
  • the composition further comprises extender particles, which typically have a median diameter average (D50) particle size in the range of from 1 pm to 50 pm as measured by laser diffraction.
  • extender particles also referred to in the art as fillers, include calcium carbonate, silica, alumina, kaolin, clay, talc, graphite, mica, diatomaceous earth, glass powder, fibers, glass microspheres, aluminum hydroxide, perlite; barium sulfate, magnesium carbonate, calcium dihydrate, rock wool, Wollastonite, zeolite, ceramic microspheres, thermoplastic microspheres, polymeric fibers, and crosslinked rubber particles. Extenders that include calcium carbonate particles are preferred.
  • the concentration of the extender particles is preferably in the range of from 50 to 75 weight percent, based on the weight of the composition.
  • the extender particles and the polymer particles compose at least 90 or at least 95 weight percent of the solids in the composition.
  • Dialkanol and trialkanol amines are secondary or tertiary amines functionalized with two or three hydroxyl groups.
  • suitable dialkanol and trialkanol amines include diethanol amine, methyl diethanolamine, ethyl diethanolamine, triethanolamine, tri-n-propanol amine, diisobutanolamine, triisopropanol amine, diisopropanol amine, bis(2-hydroxypropyl)amine, bis(3-hydroxypropyl)amine, 3- [(2-hydroxyethyl)amino]-l -propanol, N-butyldiethanolamine, and 3-(diethylamino)-l,2-propanediol.
  • a combination of amines may also be used.
  • the concentration of the dialkanol amine or trialkanol amine is preferably in the range of from 0.1 or from 0.2 or from 0.5 or from 1 weight percent, to 10 or to 5 weight percent, based on the weight of the composition.
  • the composition has a solids content in the range of from 65 or from 70 or from 75 weight percent, to 90 or to 85 or to 80 weight percent, based on the weight of the composition.
  • the composition of the present invention may further comprise other additives including dispersants, colorants, surfactants, defoamers, starch, and expandable microspheres.
  • the present invention is a method comprising the steps of applying a coating of the composition onto the surface of a substrate such as metal, plastic, or ceramic, then heating the coating to a temperature in the range of from 100 °C or from 130 °C, to 200 °C or to 170 °C, to form a dried coating with an areal density in the range of from 0.5 1 Kg/m 2 or from 1 Kg/m 2 , to 5 Kg/m 2 or to 4 Kg/m 2 .
  • composition of the present invention has been found to form a dried coating that is especially resistant to blister formation when heated to a temperature above the boiling point of water.
  • Acrylic Emulsion refers to a 2.5 acrylic acid/16 acrylonitrile/67.5 butyl acrylate/14 styrene latex with a solids content of 50%; Defoamer refers to DOWSILTM 8590 Additive; Dispersant refers to TAMOLTM 1254 Polyacid Pigment Dispersant; Surfactant refers to TERGITOLTM 15-S-40 Nonionic Surfactant; Colorant refers to UCD 1530E Jet Carbon Black; CaCCL refers to Titan 200 Calcium Carbonate Filler; Mica refers to Mica 325 Filler; Baking Additive 1 refers to Penford Gum 200 Starch Baking Additive; Baking Additive 2 refers to Expancel 031WUFX40 Expandable Microspheres Baking Additive; to RM refers to ACRYSOLTM ASE-60 Rheology Modifier (50% wt% aq.). (ACOUSTICRYL, DOWSILTM 8590 Additive; Dispersant refers to TAM
  • LASD formulations were prepared by blending the materials with an overhead mixer, then (optionally) adding 2 pbw of the amine. The mixture was equilibrated for 24 h prior to testing.
  • Brookfield viscosity of the compositions was measured at 25 °C using a Brookfield RV DV-I+ viscometer with a Brookfield Helipath stand and a T-Bar type T-E spindle for coatings with viscosities between 1,000,000 and 10,000,000 centipoise (cP).
  • a Brookfield T-Bar type T-C and Type T-F spindle may be used for viscosities between 200,000 and 1,000,000 cP, and 10,000,000 and 20,000,000 cP, respectively.
  • the speed of rotation of the spindle is 0.5 rpm.
  • the stand allows the spindle to move down into the coating during rotation to ensure proper measurement of highly viscous materials. Brookfield viscosity measurements were taken 24 h after blending the materials with an overhead mixer. Prior to measuring viscosity, the coatings were de-aerated using an overhead mixer at 1600 RPM for 1 min.
  • Table 2 illustrates the amines used in evaluating blistering and the Brookfield viscosities of the samples with the initial rheology modifier unadjusted (RMBVO) and post addition of rheology modifier (RMBVf).
  • AMP 95 refers to AMP-95 2-amino-2-methyl-l- propanol. Viscosities are in units of cP x 10 4 .
  • %RM add refers to additional rheological modifier.
  • Amine additives were added to 9 separated LASD compositions to target 2 pbw for each additive.
  • Each of the amines listed in Table 2 was added into pre- weighed formulations; the compositions were then mixed with a Flacktek high-speed mixer at 2000 rprn for 1 min.
  • Coatings were cast on pre-weighed, untreated aluminum panels using a 2.9-mm mold to create a 2” x 3.5” drawdown.
  • the cast coatings were cured at room temperature for 30 min, then baked in an oven at 150 °C for 30 min.
  • the coated panels were removed from the oven and each sample was visually inspected for any defects.
  • the panels were then weighed and measured for coating thickness using a digital thickness gauge; 5 measurements of the coating were taken at the top left, top right, bottom left, bottom right, and center.
  • Table 3 illustrates the pita formation (or non-formation) of expanded samples. Percent Expansion is reported where no defects (pita) were observed.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Dispersion Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

La présente invention concerne une composition comprenant une dispersion aqueuse de a) des particules de polymère ; b) un agent modificateur de rhéologie ; c) des particules de diluant ; et d) une dialcanol amine ou trialcanol amine ; les particules de polymère ayant une Tg calculée dans la plage de -30 °C à 60 °C ; et la composition ayant une viscosité Brookfield à 25 °C dans la plage de 200 000 cP à 2 000 000 cP. La composition de la présente invention est utile pour former des revêtements réduisant la formation de cloques dans des applications d'amortissement du bruit appliquées liquides avec peu ou pas de formation de cloques.
PCT/US2024/058344 2023-12-18 2024-12-04 Composition d'amortissement du bruit appliquée liquide Pending WO2025136652A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202363611353P 2023-12-18 2023-12-18
US63/611,353 2023-12-18

Publications (1)

Publication Number Publication Date
WO2025136652A1 true WO2025136652A1 (fr) 2025-06-26

Family

ID=93924793

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2024/058344 Pending WO2025136652A1 (fr) 2023-12-18 2024-12-04 Composition d'amortissement du bruit appliquée liquide

Country Status (1)

Country Link
WO (1) WO2025136652A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06157985A (ja) * 1992-11-18 1994-06-07 Nippon Carbide Ind Co Inc 水性被覆用組成物
US20090121174A1 (en) * 2007-11-08 2009-05-14 Melissa Merlau Johnson Liquid-applied sound damping
WO2019099372A1 (fr) * 2017-11-14 2019-05-23 Basf Se Compositions à séchage rapide, à haut extrait sec et résistantes à l'affaissement, revêtements, emballage à deux éléments constitutifs et procédé de revêtement
CN111718629A (zh) * 2019-03-22 2020-09-29 陶氏环球技术有限公司 水性涂料组合物
KR102332496B1 (ko) * 2021-01-11 2021-12-01 고은봉 윤활제 조성물 및 윤활제 조성물의 제조 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06157985A (ja) * 1992-11-18 1994-06-07 Nippon Carbide Ind Co Inc 水性被覆用組成物
US20090121174A1 (en) * 2007-11-08 2009-05-14 Melissa Merlau Johnson Liquid-applied sound damping
WO2019099372A1 (fr) * 2017-11-14 2019-05-23 Basf Se Compositions à séchage rapide, à haut extrait sec et résistantes à l'affaissement, revêtements, emballage à deux éléments constitutifs et procédé de revêtement
CN111718629A (zh) * 2019-03-22 2020-09-29 陶氏环球技术有限公司 水性涂料组合物
KR102332496B1 (ko) * 2021-01-11 2021-12-01 고은봉 윤활제 조성물 및 윤활제 조성물의 제조 방법

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