Adhesive of epoxy resin, toughener and blocked isocyanate polytetrahydrofuran toughener
US7625977B2 · kind B2 · utility
29Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2008 |
| Grant date | Dec 1, 2009 |
| Priority date | — |
| Expiry date | Jun 19, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Epoxy adhesive compositions contain an epoxy resin, rubber modification, a toughener and a curing agent. The tougher has capped epoxide-reactive groups, and at least one polytetrahydrofuran block having a mass of 2200-4500 daltons. The selection of toughener in a rubber-modified epoxy-based structural adhesive provides for very good low temperature performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.