Patent SG-11201906337R-A (SG)
Title: A polymer dispersion
Inventor: JANA SATYASANKAR
IPC: C09D5/33
Filed: 2018-01-11
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 19 July 2018 (19.07.2018) WIP0 1 PCT omit VIII °nolo 01110111010 001 oimIE (10) International Publication Number WO 2018/132069 Al W O 20 18/ 13 2069 Al (51) International Patent Classification: CO9D 133/16 (2006.01) CO9D 5/33 (2006.01) CO9D 133/12 (2006.01) (21) International Application Number: PCT/SG2018/050015 (22) International Filing Date: 11 January 2018 (11.01.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 10201700238P 11 January 2017 (11.01.2017) SG (71) Applicants: AGENCY FOR SCIENCE, TECHNOL- OGY AND RESEARCH [SG/SG]; 1 Fusionopolis Way, #20-10 Connexis North Tower, Singapore 138632 (SG). NANYANG TECHNOLOGICAL UNIVERSITY [SG/SG]; 50 Nanyang Avenue, Singapore 639798 (SG). SKYCOOL PTE LTD [SG/SG]; 137 Telok Ayer Street, #08-01, Singapore 068602 (SG). (72) Inventors: JANA, Satyasankar; c/o Institute of Chemi- cal and Engineering Sciences, 1 Pesek Road, Jurong Island, Singapore 627833 (SG). WAN, Man Pun; c/o Nanyang Technological University, School of Mechanical & Aero- space, Engineering, 50 Nanyang Avenue, Singapore 639798 (SG). CRAWLEY, Christopher Arthur; c/o SkyCool Pte Ltd, 137 Telok Ayer Street, #08-01, Singapore 068602 (SG). BARIK, Satyananda; c/o Institute of Chemical and Engineering Sciences, 1 Pesek Road, Jurong Island, Sin- gapore 627833 (SG). ZIHAN, Poh; c/o Nanyang Tech- nological University, 1 CleanTech Loop, #06-04, Singa- pore 637141 (SG). HERK, Alexander Van; c/o Institute of Chemical and Engineering Sciences, 1 Pesek Road, Jurong Island, Singapore 627833 (SG). (74) Agent: SPRUSON & FERGUSON (ASIA) PTE LTD; P.O. Box 1531, Robinson Road Post Office, Singapore 903031 (SG). (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, 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. (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, 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), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: — of inventorship (Rule 4.17(iv)) Published: with international search report (Art. 21(3)) before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h)) in black and white; the international application as filed contained color or greyscale and is available for download from PATENTSCOPE (54) Title: A POLYMER DISPERSION (57) : The present invention generally relates to a dispersion comprising a plurality of core-shell particles, wherein the core comprising non-fluorinated polymer and the shell comprises fluorinated polymer. It also relates to the use of the said dispersion as an additive in a coating formulation in at least 10 wt%, wherein substrates coated with said coating formulation exhibit improved solar-reflective and anti-dirt properties. In preferred embodiments, the said core comprises methyl methacrylate monomer and the said shell comprises hexafluorobutyl acrylate, hexafluorobutyl methacrylate, tridecafluorooctyl arylate or perfluorooctyl acrylate.