C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 59/00 (2006.01) C08F 265/06 (2006.01) C08F 279/02 (2006.01) C08F 291/02 (2006.01) C08L 21/00 (2006.01) C08L 33/14 (2006.01) C08L 51/04 (2006.01)
Patent
CA 2058331
ABSTRACT OF THE DISCLOSURE Polyacetal resins can selectively be reduced in terms of surface gloss by the addition of a core-shell polymer. The core-shell polymer which serves as the surface gloss reducing agent is one which has a rubbery polymer as its core, and a glassy vinyl copolymer having an oxygenic group (e.g., a hydroxyl or glycidyl group) as its shell. Preferably, in sequential stages to form the core and shell polymers by use of an oligomeric surfactant. The core-shell polymer is most preferably present in the polyacetal compositions in an effective amount of between 1 to 50 parts by weight, based on 100 parts by weight of the polyacetal base resin.
Katsumata Toru
Ohshima Junji
Sasaki Ichiro
Sato Koichi
Teraoka Takao
Polyplastics Co. Ltd.
Smart & Biggar
Takeda Chemical Industries Ltd.
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