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1. (WO2019050626) WATER-BASED PRESSURE SENSITIVE ADHESIVE COMPOSITIONS AND METHODS OF MAKING SAME
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Pub. No.: WO/2019/050626 International Application No.: PCT/US2018/042423
Publication Date: 14.03.2019 International Filing Date: 17.07.2018
IPC:
C09J 133/04 (2006.01)
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
J
ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
133
Adhesives 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; Adhesives based on derivatives of such polymers
04
Homopolymers or copolymers of esters
Applicants:
ROHM AND HAAS COMPANY [US/US]; 400 Arcola Road Collegeville, PA 19426, US
Inventors:
YADAV, Vinita; US
ELDREDGE, Josephine; US
GRIFFITH, JR., William B.; US
Agent:
HALES, William; US
Priority Data:
62/554,27805.09.2017US
Title (EN) WATER-BASED PRESSURE SENSITIVE ADHESIVE COMPOSITIONS AND METHODS OF MAKING SAME
(FR) COMPOSITIONS ADHÉSIVES AQUEUSES SENSIBLES À LA PRESSION ET PROCÉDÉS POUR LES FABRIQUER
Abstract:
(EN) Water-based pressure sensitive adhesive compositions are disclosed comprising an acrylic copolymer formed from a monomer mixture comprising, based on the total weight of monomers in the monomer mixture, (a) from 60 to 80 percent by weight 2-ethylhexyl acrylate, (b) from 10 to 30 percent by weight butyl acrylate, (c) from 3 to 7 percent by weight methyl methacrylate, (d) from 0.1 to 3 percent by weight styrene, (e) from 0.1 to 1 percent by weight (meth)acrylic acid, wherein the acrylic copolymer has an acid content of less than 1 percent by weight, based on the total weight of the monomers in the monomer mixture. Methods for preparing pressure sensitive adhesive compositions are also disclosed comprising preparing a monomer emulsion by dispersing a monomer mixture and a surfactant in an aqueous medium, and introducing an initiator to the monomer emulsion, thereby polymerizing the monomer mixture to form an acrylic copolymer suitable for use in a pressure sensitive adhesive composition.
(FR) La présente invention concerne des compositions adhésives aqueuses sensibles à la pression comprenant un copolymère acrylique formé d’un mélange de monomères comprenant, sur la base du poids total des monomères dans le mélange de monomères, (a) de 60 à 80 pour cent en poids d’acrylate de 2-éthylhexyle, (b) de 10 à 30 pour cent en poids d’acrylate de butyle, (c) de 3 à 7 pour cent en poids de méthacrylate de méthyle, (d) de 0,1 à 3 pour cent en poids de styrène, (e) de 0,1 à 1 pour cent en poids d’acide (méth)acrylique, le copolymère acrylique présentant une teneur en acide inférieure à 1 pour cent en poids, sur la base du poids total des monomères dans le mélange de monomères. La présente invention concerne également des procédés de préparation de compositions adhésives sensibles à la pression comprenant la préparation d’une émulsion de monomères en dispersant un mélange de monomères et un tensioactif dans un milieu aqueux, et l’introduction d’un initiateur à l’émulsion de monomères, polymérisant ainsi le mélange de monomères pour former un copolymère acrylique convenant à l’utilisation dans une composition adhésive sensible à la pression.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)