Polyol prepolymers of natural oil based polyols
US8394868B2 · kind B2 · utility
2Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2009 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Jun 19, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249953
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyol prepolymer having at least one urethane group is disclosed. The polyol preopolymer is a reaction product of at least one isocyanate and a polyol blend, where the polyol blend includes at least one conventional petroleum-based polyol and at least one natural oil based polyol. The polyol prepolymer may be used in producing flexible polyurethane foams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.