Diols formed by ring-opening of epoxies
US7241504B2 · kind B2 · utility
13Cited by
9References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2003 |
| Grant date | Jul 10, 2007 |
| Priority date | — |
| Expiry date | Jul 18, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31551
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyol monomer comprising the formula:R1 is aliphatic or aromatic, R2 is aliphatic, aromatic, ester, ether, or acrylic, and R1 contains a hydroxyl group, R2 contains —O—CH2—CH(OH)—, or both. R1 is not a C4 or larger linear, unsubstituted aliphatic when R2 is a residue of a bisphenol. The polyol monomer may be made by reacting an epoxy and an alcohol. Either the epoxy contains more than one epoxide groups, the alcohol is a polyol, or both. A thermoset made by reacting the polyol monomer with a polyisocyanate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.