CPC C08L 83/04 (2013.01) [B29C 45/0001 (2013.01); C08F 283/12 (2013.01); C08F 283/122 (2013.01); C08L 27/06 (2013.01); C08L 33/08 (2013.01); C08L 33/12 (2013.01); C08L 55/02 (2013.01); C08L 67/00 (2013.01); C08L 69/00 (2013.01); C08L 75/04 (2013.01); C08L 75/06 (2013.01); C08L 77/00 (2013.01); B29K 2033/12 (2013.01); B29K 2083/00 (2013.01); C08L 2207/53 (2013.01)] | 6 Claims |
1. A thermoplastic resin composition comprising 80 to 99.9 parts by mass of a thermoplastic resin (I), and 0.1 to 20 parts by mass of a silicone-acryl core-shell resin (II), a total mass of the thermoplastic resin (I) and the silicone-acryl core-shell resin (II) being 100 parts by mass,
wherein
a core particle of the silicone-acryl core-shell resin (II) consists of an organopolysiloxane (a) consisting of units selected from the four units depicted below represented by the following general formula (1), and a shell layer is composed of a polymer of a (meth) acrylate ester monomer (b),
![]() wherein R1 is, independently of each other, an unsubstituted alkyl group having 1 to 20 carbon atoms, other than an aryl group, R2 is a phenyl group, X is, independently of each other, an unsubstituted alkyl group having 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, or a hydroxy group, and Y is a group selected from the groups consisting of a hydroxy group, a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, a dodecyl group, a tetradecyl group, a hexadecyl group, an octadecyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a phenyl group, a tolyl group, a naphthyl group, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a hexyloxy group, a heptyloxy group, an octyloxy group, a decyloxy group, and a tetradecyloxy group, provided that at least one of the groups represented by X is a hydroxyl group and at least one of the groups represented by Y is a hydroxyl group, wherein a is the number of 0 or more, 0.3≤b/(a+b+c+e)≤1, 0≤c/(a+b+c+e)≤0.6, and 0.001≤e/(a+b+c+e)≤0.1,
wherein a mass ratio of said organopolysiloxane (a) to said polymer of a (meth) acrylate ester monomer (b) is in a range of 40:60 to 90:10,
and a length (β) of the part of a circumference occupied by the polymer of the (meth) acrylate ester monomer (b) in the silicone-acryl core-shell resin (II) accounts for at least 90% of a whole circumferential length (a) of the silicone-acryl core-shell resin (II).
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