Polypropylene resin composition for interior materials of automobile with advanced paint adhesivity and low specific gravity
US9139725B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 21, 2013 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Nov 12, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/03
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a polypropylene resin composition for automobile interior trim parts with superior paint adhesivity and low specific gravity. More specifically, a polypropylene resin composition for automobile interior trim parts having superior paint adhesivity and low specific gravity is disclosed, wherein a base resin including polypropylene, a propylene-ethylene copolymer or a mixture thereof is mixed with a reinforcer including magnesium hydroxide and an ethylene-butene elastomer. The present polypropylene resin composition allows for direct painting of an automobile interior trim part surface without primer treatment and provides excellent resistance to damage caused by impact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.