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1. (WO2013111368) EXPANDABLE POLYSTYRENE-TYPE RESIN PARTICLES AND METHOD FOR PRODUCING SAME, AND MOLDED FOAM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2013/111368    International Application No.:    PCT/JP2012/068823
Publication Date: 01.08.2013 International Filing Date: 25.07.2012
IPC:
C08J 9/16 (2006.01), C08J 9/228 (2006.01)
Applicants: SEKISUI PLASTICS CO., LTD. [JP/JP]; 4-4, Nishitenma 2-chome, Kita-ku, Osaka-shi, Osaka 5308565 (JP) (For All Designated States Except US).
CHINOMI Ryosuke [JP/JP]; (JP) (For US Only).
TARUMOTO Hiroyuki [JP/JP]; (JP) (For US Only)
Inventors: CHINOMI Ryosuke; (JP).
TARUMOTO Hiroyuki; (JP)
Agent: TANAI Sumio; 1-9-2, Marunouchi, Chiyoda-ku, Tokyo 1006620 (JP)
Priority Data:
2012-014055 26.01.2012 JP
Title (EN) EXPANDABLE POLYSTYRENE-TYPE RESIN PARTICLES AND METHOD FOR PRODUCING SAME, AND MOLDED FOAM
(FR) PARTICULES DE RÉSINE DE POLYSTYRÈNE EXPANSIBLES AINSI QUE PROCÉDÉ DE FABRICATION DE CELLES-CI, ET ARTICLE MOULÉ EXPANSIBLE
(JA) 発泡性ポリスチレン系樹脂粒子とその製造方法及び発泡成形体
Abstract: front page image
(EN)Expandable polystyrene-type resin particles produced by granulating a polystyrene-type resin containing a foaming agent, wherein the polystyrene-type resin has a weight average molecular weight (Mw) ranging from 120,000 to 320,000, the foaming agent contains butane in an amount of 2 to 8 parts by mass relative to 100 parts by mass of the polystyrene-type resin, and the composition of the above-mentioned butane comprises isobutane and normal butane at a proportion (isobutene:normal butane) ranging from 10:90 to 80:20 by mass.
(FR)L'invention concerne des particules de résine de polystyrène expansibles constituées par une résine de polystyrène comprenant un agent d'expansion mise sous forme de particules. La masse moléculaire moyenne en poids (Mw) de la résine de polystyrène, est comprise dans une plage de 120000 à 320000. L'agent d'expansion comprend en proportion 2 à 8 parties en masse de butane, pour 100 parties en masse de résine de polystyrène. La composition dudit butane est telle que, selon un rapport en masse, le rapport isobutane : butane normal est compris dans une plage de 10 : 90 à 80 : 20.
(JA) 発泡剤を含有するポリスチレン系樹脂を粒子状としてなる発泡性ポリスチレン系樹脂粒子であって、ポリスチレン系樹脂の重量平均分子量Mwが12万~32万の範囲であり、発泡剤は、ポリスチレン系樹脂100質量部に対し、ブタンを2~8質量部の比率で含有し、かつ前記ブタンの組成が、質量比でイソブタン:ノルマルブタン=10:90~80:20の範囲である。
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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, 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, 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: Japanese (JA)
Filing Language: Japanese (JA)