Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1988-04-06
1989-07-11
Nielsen, Earl
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525119, 525122, 528 92, 528110, C08L 6302
Patent
active
048469050
ABSTRACT:
Disclosed is a thermally-curable, one-part epoxy adhesive composition comprising: (1) a glycidyl ether epoxide having a048477475 n epoxy functionality grater than one and a molecular weight between about 150 and 10,000; (2) a catalyst comprising (i) an acid of the formula H.sup.+ SbF.sub.5 X.sup.- 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.
REFERENCES:
patent: 3496250 (1970-02-01), Czerwinski
patent: 4503211 (1985-03-01), Robins
patent: 4524181 (1985-06-01), Adam et al.
patent: 4553982 (1985-11-01), Korbel et al.
patent: 4668736 (1987-05-01), Robins et al.
patent: 4775734 (1988-10-01), Goel
Robins Janis
Tarbutton Kent S.
Kirn Walter N.
Lilly James V.
Minnesota Mining and Manufacturing Company
Nielsen Earl
Sell Donald M.
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