C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 67/00 (2006.01) C08L 23/08 (2006.01) C08L 63/00 (2006.01) C08L 63/10 (2006.01) C08L 67/02 (2006.01)
Patent
CA 2052859
ABSTRACT METHOD FOR PRODUCING INPACT-RESITANT POLYESTER RESIN COMPASITIONS A saturated polyester resin composition excellent in impact resistance is prepared by melt kneading (A) 30-53 parts by weight of a saturated polyester resin, (B) 42-70 parts by weight of an epoxy group-containing ethylene copolymer comprising (a) 50-99% by weight of ethylene unit, (b) 0.1-30% by weight of unsaturated carboxylic acid glycidyl ester unit or unsaturated glycidyl ether unit, and (c) Q-49% by weight of ethylenically unsaturated ester compound unit, (C) 0.01-20 parts by weight of a polyfunctional compound containing at least two specific functional groups of amino groups, carboxyl groups, carboxylic acid anhydride groups, hydroxyl groups or Image unit (wherein X and Y are both oxygen atoms or sulfur atoms or one of them is an oxygen atom and another is a sulfur atom) and (D) 0-30 parts by weight of a block copolyether ester elastomer, the amounts of (C) and (D) being based on 100 parts by weight of (A) plus (B), thereby to obtain a former-stage composition (I) and furthermore melt kneading the resulting composition (I) with (E) 50-1000 parts by weight of a saturated polyester resin and (F) 0-30 parts by weight of a block copolyether ester elastomer at a later-stage.
Chikanari Kenzo
Mashita Kentaro
Ohmae Tadayuki
Toyoshima Yoshiki
Yamaguchi Noboru
Bull Housser & Tupper Llp
Sumitomo Chemical Co. Ltd.
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