Patent SG-11201500004T-A (SG)
Title: Process for producing methacrylic polymer composition
Inventor: SUMIDA MASAKAZU
IPC: C08F220/14
Filed: 2013-06-26
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 9 January 2014 (09.01.2014) WIPOIPCT (10) International Publication Number WO 2014/007271 A1 (51) International Patent Classification: C08F 220/14 (2006.01) C08F 2/02 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/JP2013/068194 26 June 2013 (26.06.2013) English English (30) Priority Data: 2012-151147 5 July 2012 (05.07.2012) (71) Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED [ JP/JP] ; 27-1, Shinkawa 2-chome, Chuo-ku, Tokyo, 1048260 (JP). (72) Inventors: SUMIDA, Masakazu; c/o SUMITOMO CHEMICAL COMPANY, LIMITED, 5-1, Sobiraki-cho, Niihama-shi, Ehime, 7928521 (JP). YAMAZAKI, Kazuhiro; c/o SUMITOMO CHEMICAL COMPANY, LIMITED, 5-1, Sobiraki-cho, Niihama-shi, Ehime, 7928521 (JP). (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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, KE, KG, 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, PA, 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. jp (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, 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). (74) Agents: SAMEJIMA, Mutsumi et al.; AOYAMA & PARTNERS, Umeda Hankyu Bldg. Office Tower, 8-1, Kakuda-cho, Kita-ku, Osaka-shi, Osaka, 5300017 (JP). 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)) (54) Title: PROCESS FOR PRODUCING METHACRYLIC POLYMER COMPOSITION Figure 1 15 l> CJ l> o o 27' -21 23 25 \L © CJ o & (57) Abstract: The present invention provides a process for producing a methacrylic polymer composition, which comprises supply­ ing a raw material mixture comprising a raw material monomer containing 50% by weight or more of methyl methacrylate and a polymerization initiator into a reactor of complete a mixing type through a supply port thereof; subjecting to continuous polymeriza­ tion in the reactor; and taking an obtained polymer composition from an effluent port thereof, wherein temperature a of the raw ma­ terial mixture supplied into the reactor is -50°C to -10°C. By this, a methacrilic polymer composition suitable for producing a high thermally-stable and heat-resistant resin composition with high quality can be produced.