Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1989-08-29
1990-05-22
Nielsen, Earl
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528109, 528361, 528374, 525504, C08G 5966
Patent
active
049279025
ABSTRACT:
Polythiols prepared by the reaction of hydrogen sulfide or organic dithiols with polyglycidyl substituted amines have been found to be outstanding curing agents for epoxy resins. Epoxy resins cured with these polythiols are characterized by not only improved gel times, but also improved cure rates, better heat resistance and greater resistance to absorption of water.
A useful polythiol is the reaction product of N,N,N',N'-tetraglycidyl-m-xylylenediamine with hydrogen sulfide.
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Dallago Raymond P.
Grinstein Reuben H.
Hartman Stuart J.
Johnson Grannis S.
Henkel Corporation
Jaeschke Wayne C.
Nielsen Earl
Szoke Ernest G.
Wisdom, Jr. Norvell E.
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