Patent CA-3101480-A1 (CA)
Title: Multi-stage latex particles with peg in outer stage
Inventor: GRIGORAS CHRISTIAN
IPC: C08L51/08
Filed: 2019-01-25
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 111111 10111E01111110111 11111 11E1 110101110111 11111 0E1 0 Ill 1 111 101E1111 1111E1111 Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2019/152275 Al 08 August 2019 (08.08.2019) WIPO I PCT (51) International Patent Classification: EE, ES, FI, FR, GB, GR., HR, HU, 1E, IS, IT, LT, LU, LV, CO8L 51/08 (2006.01) MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, (21) International Application Number: KM, ML, MR, NE, SN, TD, TG). PCT/US2019/015181 (22) International Filing Date: Pu bushed: 25 January 2019 (25.01.2019) ¨ with international search report (Art. 21(3)) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/625,390 02 February 2018 (02.02.2018) US (71) Applicant (far all designated States except US): BEN-JAMIN MOORE & CO. [US/US]; 101 Paragon Drive, Montvale, NJ 07645 (US). (71) Applicant (far US only): COLUMBIA INSURANCE COMPANY [US/US]; 13 14 Douglas Street, Suite 1400, Omaha, NE 68102 (US). (72) Inventors: GRIGORAS, Christian; 9 Woodland Drive, = Suffern, NY 10901 (US). YANG, Yong; 16 Kilmer Dri-ve, Hillsborough, NJ 08844 (US). SAAD, Rogina; 9 Hill--top Circle Drive, Ottsville, PA 18942 (US). GEURTSEN, Richard; 18 Chadwick Court, Robbinsville, NJ 08691 (US). = (74) Agent: THAN, H.T.; The H.T. Than Law Group, 12435 Park Potomac Avenue, Suite 440, Potomac, MD 20854 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY BZ, CA, CII, 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. ______________________________________ (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, 44 IN (54) Title: MULTI-STAGE LATEX PARTICLES WITII PEG IN OUTER STAGE (-4 esi (57) Abstract: Disclosed herein is an aqueous latex composition comprising a substantially acrylic core-shell latex, wherein a water-re-taining monomer is copolymerized to the shell. The Tg of the core ranges from about 0 C to about 12 C, arid the Tg of the shell ranges from about 13 C to about 40 C. The mean volume average particle size of the latex ranges from about 125 nm to about 200 nm. The core-shell latex comprises at least one acrylic monomer having a solubility that ranges about 10 g/L to about 30 g/L at 30 C, and this at least one acrylic monomer is present in the shell polymer in an amount greater than about 50 wt.% of all monomers in the shell. es1 Preferably, the at least one acrylic monomer is methyl methacrylate. CA 3101480 2020-11-02