Polyether dihydroxyalkyl carbamate epoxy additive for epoxy resi

Details Polyether dihydroxyalkyl carbamate epoxy additive for epoxy resi Polyether dihydroxyalkyl carbamate epoxy additive for epoxy resi

1977-04-11

1978-10-24

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

260 47EA, 260 7841, 260830R, 528112, 528113, 528132, 528370, C08G 5942

Patent

active

041220684

ABSTRACT:
Resistance to thermal shock of certain anhydride cured epoxy resins is unexpectedly enhanced by addition of certain polyether dihydroxyalkyl carbamate additives. This superior resistance does not appreciably compromise heat deflection properties. The resins comprise a vicinal polyepoxide, a curing amount of a certain bicyclic anhydride and an effective amount of a polyether dicarbamate having terminal hydroxyalkyl carbamate groups and a molecular weight of from about 2000 to about 3000.

REFERENCES:
patent: 3275587 (1966-09-01), Weller et al.
patent: 3496119 (1970-02-01), Weller et al.
patent: 3499007 (1970-03-01), VON Brachel et al.

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