Flame retardant structural epoxy resin adhesives and process for bonding metal members
US9346983B2 · kind B2 · utility
0Cited by
9References
11Claims
0Family size
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Key dates
| Filing date | Mar 22, 2013 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Mar 22, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/387
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A heat-curable structural adhesive includes at least one non-rubber-modified epoxy resin; an optional rubber or toughener, one or more epoxy curing agents, one or more epoxy curing catalysts; and a flame retardant mixture that includes (i) alumina trihydrate, (ii) zinc borate and (iii) melamine or a melamine derivative. The structural adhesive is useful for bonding metals to other materials or metals to other metals. The structural adhesive strongly resists ignition when welding is performed in the presence of the uncured material, and does not interfere significantly with weld performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.