Process for the production of molded products using internal mold release agents
US5128087A · kind A · utility
11Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1991 |
| Grant date | Jul 7, 1992 |
| Priority date | — |
| Expiry date | Apr 2, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/34
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a process for producing a molded product by a) reacting i) an organic polyisocyanate, ii) an hydroxyl group containing component having an average hydroxyl number of 300 or more, an average hydroxyl functionality of from 2 to 8, and an average molecular weight of no more than about 500, and iii) a carboxylic acid, in a closed mold, b) allowing the components to react, and c) removing the product from the mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.