Thermoplastic resin composition and molded article thereof
The thermoplastic resin composition, featuring polycarbonate resin, treated warlastonite, and additional polymers, successfully balances mechanical and appearance-related properties in automotive applications, overcoming the shortcomings of previous resin compositions.
JP7647848B2Active Publication Date: 2025-03-18TECHNO UMG CO LTD
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Patent Information
- Application Number
- JP2023208339
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2023-12-11
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2041-03-17
AI Technical Summary
Technical Problem
Existing resin compositions for automotive applications fail to balance high rigidity, high impact resistance, low linear thermal expansion coefficient, and good molding and paint appearances simultaneously.
Method used
A thermoplastic resin composition comprising polycarbonate resin and warlastonite treated with a specific silane coupling agent, blended with a graft copolymer and optionally an ultra-high molecular weight resin or Teflon resin, to enhance mechanical properties and appearance.
Benefits of technology
The composition achieves a high level of rigidity, impact resistance, heat resistance, and low linear thermal expansion coefficient while maintaining excellent molding and paint appearances, effectively addressing the limitations of prior art.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide a thermoplastic resin molded article which satisfies required characteristics such as high rigidity, high impact resistance, high heat resistance, a low coefficient of linear thermal expansion, good molding appearance and good coating appearance in a highly well-balanced manner.SOLUTION: A thermoplastic resin composition contains polycarbonate (A) and wollastonite (B), wherein the wollastonite (B) is treated with a silane coupling agent containing a straight-chain alkyl group having 12 or more carbon atoms. The thermoplastic resin composition may further contain a graft copolymer (C), a vinyl-based copolymer (D), an ultrahigh molecular weight resin (E), and a teflon-based resin (F).SELECTED DRAWING: None
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