Polyurethanes containing dispersed crystalline polyesters
US6849666B2 · kind B2 · utility
1Cited by
14References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 2001 |
| Grant date | Feb 1, 2005 |
| Priority date | — |
| Expiry date | Sep 2, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2250/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process is disclosed for producing resilient polyurethane foams by foaming an organic polyisocyanate, an iso-cyanate-reactive compound and a fusible polymer. The improvement in the hardness of the foams is achieved without adversely affecting the other properties of the foams, such as tensile strength and elongation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.