Method of manufacturing a plastic motor vehicle door
US5034173A · kind A · utility
16Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1990 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Apr 26, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/30
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A two-staged or sequential reaction injection molding (RIM) method of manufacturing a glass fiber mat reinforced plastic part having at least one appearance surface in which a high viscosity RIM material and a low viscosity RIM material are sequentially injected into a mold cavity containing at least one reinforcing member of a glass fiber mat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.