Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Patent
1990-03-21
1992-04-28
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
128 58, 128 59, 128 60, 128 61, 128 64, 128 65, 128 76, 128 77, C08G 1800, C08G 1832, C08G 1814
Patent
active
051090988
ABSTRACT:
Imines and secondary amines comprising a backbone portion containing a plurality of polyalkyleneoxy moieties and one or more internal urea, thiourea, biuret, thiobiuret, amide, or thioamide moieties, and a plurality of imino or secondary amino end groups, wherein each imino or secondary amino end group is separated from a urea, thiourea, biuret, dithiobiuret, amide, or thioamide moiety by at least one alkylene, cycloalkylene, aralkylene, arylene, alkyleneoxy, or ppolyalkyleneoxy moiety are disclosed. Prepolymers and polymers prepared from the imines and secondary amines are also disclosed. In addition, the imines and secondary amines of the invention are also useful as epoxy resin curing agents.
REFERENCES:
patent: 4689353 (1987-08-01), Harris
patent: 4916201 (1990-04-01), Harris
patent: 4935460 (1990-06-01), Cassidy et al.
patent: 4959499 (1990-09-01), Harris
patent: 5055544 (1991-10-01), Harris et al.
Habermann Clarence E.
Harris Robert F.
Joseph Michael D.
Kight III John
The Dow Chemical Company
Truong Duc
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