Method of making polyurethane foam
US8784518B2 · kind B2 · utility
0Cited by
10References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2012 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Sep 8, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2110/0083
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Herein are disclosed an apparatus and method for reaction injection molding of polyurethane foam. In the method, a recirculation loop containing polyols along with an effective amount of water, and a recirculation loop containing isocyanates, are each partially evacuated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.