Structural epoxy resin adhesives containing chain-extended elastomeric tougheners capped with phenol, polyphenol or aminophenol compounds
US9181463B2 · kind B2 · utility
2Cited by
17References
14Claims
0Family size
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Key dates
| Filing date | Nov 30, 2011 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Apr 13, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Structural adhesives are prepared from a chain extended elastomeric toughener that contains urethane and/or urea groups, and have terminal isocyanate groups that are capped with a phenol, a polyphenol or an aminophenol compound. The adhesives have very good storage stability and cure to form cured adhesives that have good lap shear and impact peel strengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.