Process for manufacturing polyurethane foams
US5459172A · kind A · utility
3Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1994 |
| Grant date | Oct 17, 1995 |
| Priority date | — |
| Expiry date | Nov 30, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2110/0083
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to flexible polyurethane foams useful as seat cushioning material for vehicles, aircraft, furniture and the like. The polyurethane foams are characterized by improved wet compression set properties, improved firmness, resilience and elongation. The foams are made by a process which comprises reacting a polyol having a hydroxyl equivalent of from 800-10,000, a glycerin derivative having oxyethylene groups thereon but characterized by having a significant number of unreacted secondary hydroxyl groups of glycerin, (c) water and (d) an organic polyisocyanate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.