Polyurethane foam article
US9133296B2 · kind B2 · utility
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13References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 12, 2014 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Jun 12, 2034 |
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.