Adhesive of epoxy resin, toughener and blocked isocyanate...

Details Adhesive of epoxy resin, toughener and blocked isocyanate... Adhesive of epoxy resin, toughener and blocked isocyanate...

2008-06-19

2009-12-01

Sellers, Robert (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C156S330000, C525S454000

Reexamination Certificate

active

07625977

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.

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Derwent accession No. 2005-152074 for WO 2005/007766 or U.S. Publication No. 2005/0070634, Lutz et al., Jan. 27, 2005, one page.

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