Aminosilane adhesion promoter for urethane system
US9834641B2 · kind B2 · utility
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2Claims
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Key dates
| Filing date | Nov 25, 2014 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Nov 25, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J175/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyester polyol comprising at least one esterified unit of formula (I)wherein L is a difunctional aliphatic group having from two to six carbon atoms and R is a C1-C4 alkyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.