Reaction injection molding apparatus
US5002475A · kind A · utility
13Cited by
33References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 9, 1989 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | Nov 9, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/812
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In an apparatus for the reaction injection molding of a shaped article from a polymerizable flowable resin-forming composition, once such composition has attained a predetermined increased level of viscosity as measured in situ within the mold cavity, an amount of pressure is applied to the polymerizing composition which is sufficient to maintain any entrapped gas(es) dissolved therein and/or to prevent the composition from pulling away from mold cavity surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.