Polymer composite and rubber contacts
US5221785A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1992 |
| Grant date | Jun 22, 1993 |
| Priority date | — |
| Expiry date | Oct 6, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L75/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polymer composite comprises about 5 to 95 parts by weight of a copolymer (A) selected from the group consisting of olefin/diene copolymer and ethylene/(meth)acrylic acid ester copolymer, and 5 to 95 parts by weight of a polyurethane resin (B), wherein the polyurethane resin is one which is synthesized in the melted copolymer in the absence of a compatibilizer, a composition for molding comprising such polymer composite and electroconductive fillers and its molded article, and rubber contacts. The polymer composite possesses the flexibility and durability equivalent to those of silicone rubber, has excellent injection molding property, can be made by a short manufacturing process, and can be manufactured inexpensively. The polymer composite of the invention, when used together with an electroconductive filler, is effectively applied as rubber contacts, that is, flexible electric connection members of electric products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.