Electro-conductive thermoplastic resin foam and preparation process thereof
US4525297A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 28, 1983 |
| Grant date | Jun 25, 1985 |
| Priority date | — |
| Expiry date | Nov 28, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electro-conductive foam is prepared by mixing together 100 parts by weight of a resin component consisting of 10 to 90 parts by weight of a crystalline thermoplastic polyolefin type resin and 10 to 90 parts by weight of a low-crystalline thermoplastic resin with 5 to 40 parts by weight of electro-conductive carbon, by cross linking this mixture and then forming it by heating. By using the mixture of crystalline polyolefin type thermoplastic resins and low-crystalline thermoplastic resins as the resinous component, the present invention provides an electro-conductive foam having a good foam surface condition and capabilities of deep-draw forming. This electro-conductive foam is utilized as a material for semiconductor integrated circuit containers and similar applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.