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Machine translation
1. (WO2012116025) POLYMER ENCAPSULATED TITANIUM DIOXIDE PARTICLES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/116025    International Application No.:    PCT/US2012/026047
Publication Date: 30.08.2012 International Filing Date: 22.02.2012
IPC:
C09C 1/36 (2006.01)
Applicants: ROHM AND HAAS COMPANY [US/US]; 100 Independence Mall West Philadelphia, PA 19106 (US) (For All Designated States Except US).
BARDMAN, James Keith [US/US]; (US) (For US Only).
BROMM, Karl Allen [US/US]; (US) (For US Only)
Inventors: BARDMAN, James Keith; (US).
BROMM, Karl Allen; (US)
Agent: WILLIS, Reid; Rohm and Haas Company 100 Independence Mall West Philadelphia, Pennsylvania 19106-2399 (US)
Priority Data:
61/463,782 23.02.2011 US
61/490,126 26.05.2011 US
Title (EN) POLYMER ENCAPSULATED TITANIUM DIOXIDE PARTICLES
(FR) PARTICULES DE DIOXYDE DE TITANE ENCAPSULÉES DANS UN POLYMÈRE
Abstract: front page image
(EN)The present invention relates an aqueous dispersion of low Tg polymer encapsulating TiO2 particles and a process for preparing the dispersion. The encapsulating polymer is a (meth)acrylate polymer, a styrene-acrylate copolymer, or a vinyl acetate-(meth)acrylate copolymer, or a combination thereof, and the encapsulating polymer further contains units of sodium styrene sulfonate. The present invention provides encapsulated TiO2 particles with low gel that are film-forming at ambient temperatures, especially for coatings applications.
(FR)L'invention concerne une dispersion aqueuse de polymère à faible Tg encapsulant des particules de TiO2 et un procédé de préparation de la dispersion. Le polymère d'encapsulation est un (meth)acrylate polymère, un styrène acrylate polymère ou un vinyl acétate (meth)acrylate copolymère, ou une combinaisons de ceux-ci, le polymère d'encapsulation contenant en outre des unités de sodium styrène sulfonate. La présente invention permet d'obtenir des particules de TiO2 encapsulées à faible teneur en gel qui sont filmogènes aux températures ambiantes, et qui conviennent particulièrement pour des applications de revêtement.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)