Thermoplastic compositions based on saturated polyester and molded articles containing them
US5407999A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1993 |
| Grant date | Apr 18, 1995 |
| Priority date | — |
| Expiry date | Apr 14, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F15/067
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Thermoplastic composition comprising at least 60% by weight of a saturated polyester and not more than 40% by weight of at least one polymeric reinforcement. The polymeric reinforcement employed is an at least partially crosslinked polymeric composition obtained by mixing: PA0 (a) at least one copolymer comprising from 94 to 60% by weight of ethylene, from 5 to 25% by weight of at least one alkyl or cycloalkyl acrylate or methacrylate in which the alkyl or cycloalkyl group has from 2 to 10 carbon atoms, and from 1 to 15% by weight of at least one unsaturated epoxide, PA0 (b) at least one copolymer comprising from 84 to 60% by weight of ethylene, from 15 to 34% of at least one alkyl or cycloalkyl acrylate or methacrylate in which the alkyl or cycloalkyl group has from 2 to 10 carbon atoms, and from 1 to 6% by weight of at least one anhydride of an unsaturated dicarboxylic acid, and PA0 (c) at least one compound capable of accelerating the reaction between the epoxy group present in the copolymer (a) and the anhydride group present in the copolymer (b).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.