Steering wheel composed of a non-yellowing semi-rigid polyurethane foam
US4542166A · kind A · utility
4Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 23, 1985 |
| Grant date | Sep 17, 1985 |
| Priority date | — |
| Expiry date | Jan 23, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20834
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A non-yellowing, semi-rigid polyurethane foam is disclosed. The foam is prepared by mixing the following components (a), (b), (c) and (d) with a blowing agent and a catalyst, and pouring the mixture into a mold where it is allowed to foam and cure. PA1 (a) a polymer polyol having a molecular weight of 3,000 to 10,000 wherein a vinyl monomer is grafted to a polyether polyol; PA1 (b) a polyol having a molecular weight of 62 to 300; PA1 (c) an aliphatic or alicyclic isocyanate; and PA1 (d) at least one ultraviolet absorber and at least one antioxidant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.