Detail of "94858-30-7"

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Grafted rubber polymer compositions with improved surface gloss and impact resistance

Grafted rubber polymer compositions with improved surface gloss and impact resistance. Mishima, Yasuhiro; Doi, Norihito; Matsumura, Yoichi (Kanegafuchi Chemical Industry Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 09216980 A2 19 Aug 1997 Heisei, 13 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: ICM: C08L025-12. ICS: C08L025-12; C08L033-18; C08L035-00; C08L051-00; C08L051-04; C08L051-06; C08F279-02. APPLICATION: JP 1996-48292 9 Feb 1996. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) Section cross-reference(s): 38 Title compns. with MEK-sol. redn. viscosity 0.3-1.2 dL/g (30°, in DMF) comprise (1) graft copolymers contg. (A) rubber polymer parts with TEM-based vol.-av.Several substances like 94858-30-7 may be metioned in this study. particle size (x) 250-800 nm and std. deviation of particle size (y) ￡50% and (a) graft parts (vol. ratio a/A = 0.10-0.80), (2) graft copolymers contg. (B) rubber polymer parts (x 60-160 nm, y ￡40%) and (b) graft parts (vol. ratio b/B 0.30-1.00), and (3) copolymers of vinyl cyanides 15-60, arom. vinyl compds. 40-85, and comonomers 0-30 mol% and/or (4) copolymers of vinyl cyanides 15-60, maleimides ￡45, arom. vinyl compds. 40-80, and comonomers 0-30 mol%. In the compns., (I) rubber polymer parts A and B [A/(A + B) 0.1-0.5, content of A and B for total compns. 5-40%] comprise diene polymers, olefin polymers, and/or acrylic polymers, (II) A is obtained by coagulation swelling of acid-contg. latexes prepd. from (c) 5-25% 31 unsatd. acid selected from (meth)acrylic acid, itaconic acid, and crotonic acid, (d) 5-30% 31 C1-12 alkyl acrylates, (e) 20-80% 31 C1-12 alkyl methacrylates, and (f) 0-40% comonomers, and (III) graft parts a and b comprise copolymers of vinyl cyanides 15-60, arom. vinyl compds. 40-85, and comonomers 0-30 mol%. Thus, acrylonitrile-butadiene-Bu acrylate-Bu methacrylate-methacrylic acid-styrene graft copolymer 8, acrylonitrile-butadiene-styrene copolymer 24, and acrylonitrile-styrene copolymer 68 parts were blended, melt kneaded, pelletized, and injection molded to give a test piece showing high surface gloss and good heat and impact resistance. .