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
1989-12-18
1991-05-07
Welsh, Maurice J.
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...
528 61, 528 68, 528 75, 528 76, C08G 1832
Patent
active
050138138
ABSTRACT:
A polyurea elastomer which exhibits a rapid dry time is disclosed. The elastomer includes an isocyanate, an amine terminated polytetrahydrofuran and a chain extender. The isocyanate is preferably a quasi-prepolymer of an isocyanate and a material selected from at least one polyol, a high molecular weight polyoxyalkyleneamine or a combination thereof.
REFERENCES:
patent: 4806615 (1989-02-01), Rico et al.
Primeaux, II Dudley J.
Zimmerman Robert L.
Kulason Robert A.
O'Loughlin James J.
Texaco Chemical Company
Vicari Dominick G.
Welsh Maurice J.
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