Process for the production of molded article having positive temperature coefficient characteristics
US5164133A · kind A · utility
18Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1990 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Dec 31, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/0041
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for the production of a molded article having positive temperature coefficient characteristics from a resin composition containing a crystalline resin, electrically conductive particles and an organic peroxide. A molded article having excellent PTC characteristics over that of a conventional molded article can be obtained by a process which includes mixing the crystalline resin and the electrically conductive particles to obtain a mixture; crosslinking the crystalline resin with the organic peroxide by kneading the mixture under a shear force; and simultaneously or successively molding the resultant kneaded mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.