Patent · US Active

Two part crash durable epoxy adhesives

US8278398B2 · kind B2 · utility

5Cited by

11References

17Claims

0Family size

Assignee

DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

Andreas Lutz · Freienbach, CH
Beda Steiner · Gossau, CH

Key dates

Filing date	Aug 12, 2008
Grant date	Oct 2, 2012
Priority date	—
Expiry date	Mar 26, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2666/08
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Two-component epoxy-based structural adhesives are disclosed which exhibit excellent impact resistance, even when cured at approximately room temperature. The adhesives include an epoxy resin component which includes an epoxy resin and a reactive tougher. The adhesives also include a hardener component, which includes from 15 to 50 weight percent of an amine-terminated polyether, from 4 to 40 weight percent of an amine terminated rubber having a glass transition temperature of −40° C. or below, and from 10 to 30 weight percent of an amine-terminated polyamide having a melting temperature of no greater than 50° C.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.