Multi-phase thermoplastic compositions and articles obtained therefrom
US5070145A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 5, 1989 |
| Grant date | Dec 3, 1991 |
| Priority date | — |
| Expiry date | Dec 5, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L77/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions comprising from 50 to 95% by weight of at least one polyamide resin, and from 5 to 50% by weight % of a polymer composition comprising from 84 to 99.1 mole % of units derived from ethylene and from 0.9 to 16 mole % of units derived from an unsaturated anhydride of a dicarboxylic acid and optionally from at least one of an alkyl acrylate or methacrylate whose alkyl group has from 1 to 8 carbon atoms. The polymer composition is present in the form of a mixture of (A) a polymer of ethylene and (B) a copolymer of ethylene and an unsaturated anhydride of a dicarboxylic acid. The weight ratio (A) to (B) lies between 1 to 6 and 6 to 1. Application is to the production of articles having an improved impact resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.