Polyols for low-VOC polyurethane applications
US11919993B2 · kind B2 · utility
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5References
16Claims
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Key dates
| Filing date | Jul 22, 2020 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | May 29, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2150/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyester polyols for use in low-VOC polyurethane compositions are disclosed. The polyester polyols are the reaction product of at least one aliphatic polycarboxylic acid, at least one alkoxylated polyalcohol having a functionality of 2.0 or greater, and one or more polyalcohols other than an alkoxylated polyalcohol. The polyester polyols can be formulated into polyurethane compositions to obtain a polyurethane having a low VOC content. The polyurethane composition is particularly suitable for polyurethane coating applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.