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US 11,261,325 B2Granted
Thermoplastic urethane resin molded product
AssigneeNissin Chemical Industry Co., Ltd.
InventorKentaro Watanabe
Life of this patent
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Abstract
A resin molded product includes: (I) a thermoplastic urethane resin: 80 to 99.9% by weight; and (II) a silicone acrylic graft copolymer resin: 0.1 to 20% by weight, the silicone acrylic graft copolymer resin comprising: (A) an organopolysiloxane represented by the specific formula; and (B) an acrylic ester unit or a methacrylic ester unit, wherein a weight ratio of these components is (A):(B)=50:50 to 90:10.
Claims6
A resin molded product comprising:
- (I) a thermoplastic urethane resin:
- 80 to 99.9% by weight;
- and
- (II) a silicone acrylic graft copolymer resin:
- 0.1 to 20% by weight, the silicone acrylic graft copolymer resin comprising:
- (A) an organopolysiloxane represented by the following general formula (1):
- wherein
- R1 is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, R2 is an alkenyl group having 2 to 6 carbon atoms or an alkyl group having 1 to 6 carbon atoms in which a part of hydrogen atoms bonded to the carbon atoms is substituted with a mercapto group, vinyl group, acryloxy group or methacryloxy group, independently of each other, R3 is a phenyl group, X is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, alkoxy group having 1 to 20 carbon atoms, or hydroxyl group, independently of each other, Y is a group defined by X or a group represented by -[O—Si(X)2]d-X, independently of each other, at least two of the groups represented by X and Y are hydroxyl groups, Z is an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms or a hydroxyl group, independently of each other, a is a number of 0 or more, b is a positive number that is 11.0 to 91.5% per total number of a to f, c is a positive number that is 0.0001 to 5% per total number of a to f, e is a number with a ratio of 8.5 to 60.0% with respect to the total number of a to f, f is a positive number of 3 to 15% per total number of a to f, and d is a positive number of from 0 to 10;
- and
- (B) an acrylic ester unit or a methacrylic ester unit grafted onto the organopolysiloxane, wherein a weight ratio of these components is (A):(B)=50:50 to 90:10, and
- the silicone acrylic graft copolymer resin is an emulsion graft copolymer obtained by an emulsion graft polymerization of a mixture containing:
- (i) the organopolysiloxane represented by the general formula (1),
- (ii) 10 to 100 parts by weight of the acrylic ester monomer or the methacrylic ester monomer per 100 parts by weight of the component (i), and
- optionally, (iii) 0.01 to 20 parts by weight of a functional group-containing monomer per 100 parts by weight of the component (i), the functional group-containing monomer being copolymerizable with the component (ii).
11 more elements
Dependencies are inferred from the claim text.