One-component epoxy-modified polyurethane and/or polyurea adhesives having high elongation and excellent thermal stability, and assembly processes using same
US10815405B2 · kind B2 · utility
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Key dates
| Filing date | Jan 9, 2017 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Feb 4, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/33348
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A one-component epoxy-modified polyurethane and/or urea adhesive includes very high levels of reactive urethane group- and/or urea group-containing tougheners, an epoxy resin and epoxy hardener. These adhesives are formulated to cure at high temperatures and surprisingly provide high elongations, excellent thermal stability and good adhesive properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.