Two-component polyurethane composition
US11680131B2 · kind B2 · utility
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Key dates
| Filing date | Mar 16, 2020 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Jun 7, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2190/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A two-component polyurethane composition including a polyol component and a polyisocyanate component, wherein the polyol component comprises at least one polyester polyol A1 based on dimer fatty acids and/or dimer fatty alcohols having an OH number of 65-350 mg KOH/g, at least one polybutadiene polyol A2 and at least one alkoxylated alkylenediamine A3. The polyurethane composition has high strength and only a minor dependence of the mechanical properties, especially strength, on temperature, especially in the range from −40° C. to +100° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.