C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
400/3038, 400/59
C09J 163/02 (2006.01) C08G 59/62 (2006.01) C08G 59/68 (2006.01) C08L 63/00 (2006.01) C09J 5/00 (2006.01)
Patent
CA 1332482
Abstract of the Disclosure Disclosed is a thermally-curable, one-part epoxy adhesive composition comprising: (1) a glycidyl ether epoxide having an epoxy functionality greater than one and a molecular weight between about 150 and 10,000; (2) a catalyst comprising (i) an acid of the formula H+SbF5X- wherein X is halogen, hydroxy, or -OR where -OR is the residue of an aliphatic or aromatic alcohol having a molecular weight less than about 10,000 and (ii) N,N-diethyl-o-toluidine; (3) an aliphatic or non-aromatic cyclic polyol having about 2 to 18 carbon atoms, at least two hydroxy groups of which are primary or secondary, and being free of electron-withdrawing substituents, amine substituents, or large substituents that cause steric hindrance in the .alpha.-position in relation to the carbon attached to the methylol group of the polyol; and (4) a toughening agent that does not react with the epoxide during curing and has an epoxide compatible component and an epoxide incompatible component. Also disclosed is a method of adhering metal substrates together with the adhesive composition of the invention.
593951
Robins Janis
Tarbutton Kent S.
Minnesota Mining And Manufacturing Company
Smart & Biggar
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