Plastic shell for foam moldings
US4878827A · kind A · utility
22Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 22, 1988 |
| Grant date | Nov 7, 1989 |
| Priority date | — |
| Expiry date | Aug 22, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C44/14
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
For automotive interior trim molding assemblies having a vinyl skin shell, a reinforcement insert, and an intermediate reaction type polyurethane foam composition, a vinyl skin shell which has a gasket-type peripheral edge formed thereon for abutting cooperation with the reinforcement insert to prevent leakage of the foam therepast during the foam reaction period in a reaction mold. The gasket-type peripheral edge is formed on the otherwise thin shell by a tear edge, against which plastisol builds up in a substantially triangular cross section during the shell molding period in a heated slush mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.