Invention Grant
US09403975B2 Thermoplastic polymer composition, production method thereof, and shaped article and electric cable obtained therefrom
有权
热塑性聚合物组合物及其制造方法以及由其制得的成形制品和电缆
- Patent Title: Thermoplastic polymer composition, production method thereof, and shaped article and electric cable obtained therefrom
- Patent Title (中): 热塑性聚合物组合物及其制造方法以及由其制得的成形制品和电缆
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Application No.: US11729950Application Date: 2007-03-30
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Publication No.: US09403975B2Publication Date: 2016-08-02
- Inventor: Hiroshi Uehara , Mariko Harigaya , Masayoshi Yamaguchi
- Applicant: Hiroshi Uehara , Mariko Harigaya , Masayoshi Yamaguchi
- Applicant Address: JP Tokyo
- Assignee: MITSUI CHEMICALS, INC.
- Current Assignee: MITSUI CHEMICALS, INC.
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2006-096475 20060331; JP2006-309766 20061116
- Main IPC: H01B17/00
- IPC: H01B17/00 ; C08L51/00 ; C08K3/22 ; C08L51/06 ; C08F255/02 ; C08L23/10 ; H01B3/44

Abstract:
Propylene-based resin compositions contain an inorganic filler in a high ratio and are excellent in flexibility, mechanical strength, elongation at break, heat resistance, scratch resistance, whitening resistance and flame retardancy. Shaped articles comprise the compositions.A first propylene-based resin composition of the present invention contains 5 to 64.9% by weight of a propylene-based polymer (A) having a melting point, as measured by differential scanning calorimetry (DSC), in the range of 120° C. to 170° C.; 0 to 59.9% by weight of a propylene-based polymer (B) having a melting point, as measured by differential scanning calorimetry (DSC), of less than 120° C. or having no observed melting point; 0.1 to 30% by weight of a graft-modified propylene-based polymer (C) obtained by graft modifying a propylene-based polymer having a melting point, as measured by differential scanning calorimetry (DSC), of less than 120° C. or having no observed melting point; and 35 to 75% by weight of an inorganic filler (D) (here, the total amount of (A), (B), (C) and (D) is 100% by weight).
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