Manufacture of polymeric foams
US5624972A · kind A · utility
4Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1995 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | Apr 3, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/917
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for the preparation of flexible polymeric foam by reacting a polyisocyanate component with an isocyanate-reactive component comprising at least 50% by weight of water, the polyisocyanate component comprising at least two polyisocyanate compositions, one of them being a low NCO isocyanate terminated prepolymer and the second being a high NCO polyisocyanate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.