Thermoplastic elastomer composition
US4946896A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 1988 |
| Grant date | Aug 7, 1990 |
| Priority date | — |
| Expiry date | Nov 1, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There is provided a thermoplastic elastomer composition having excellent surface processabilities such as adhesion, paintability and printability together with impact resistance. This composition comprises (A) 20-80% by weight of a polypropylene resin, (B) 5-38% by weight of an ethylene copolymer having 82-98.7 mol % of an ethylene unit, 1-15 mol % of an ester unit selected from alkyl acrylate and methacrylate having an alkyl group of 1-8 carbon atoms and 0.3-3 mol % of an unsaturated dicarboxylic acid anhydride unit and (C) 5-70% by weight of ethylene-propylene and/or ethylene-propylene-non-conjugated diene copolymer rubber which contain 50-85 mol % of an ethylene unit and have a Mooney viscosity at 100.degree. C. of 20-100 and an iodine value of 20 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.