Method of coinjection molding of thermoplastic and thermoplastic elastomer
US4385025A · kind A · utility
68Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1980 |
| Grant date | May 24, 1983 |
| Priority date | — |
| Expiry date | Oct 20, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2236/022
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Vibration isolators are manufactured by a co-injection molding process. Outer and inner parts of the isolators are molded first from a rigid or stiff thermoplastic material such as polystyrene and intermediate spring-like parts of the isolators are made of a thermoplastic elastomer such as copolymer of butadiene and styrene formed and bonded to the outer and inner parts in a subsequent molding step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.