Process for preparing polyurea and polyurethane-urea resin

Details Process for preparing polyurea and polyurethane-urea resin Process for preparing polyurea and polyurethane-urea resin

1994-03-15

1996-03-26

Seidleck, James 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 76, 528 85, C08G 1832, C08G 1860

Patent

active

055021514

ABSTRACT:
A process for preparing a polyurea resin or a polyurethane-urea resin is disclosed which comprises reacting a polyalkylene ether polyamine, wherein the polyalkylene ether moiety is a random copolymer of tetrahydrofuran and 3-methyltetrahydrofuran, with a polyisocyanate compound or an isocyanate group-terminated prepolymer.

REFERENCES:
patent: 5086153 (1992-02-01), Oyaizu
Journal of Applied Polymer Science, vol. 35, No. 7, May 20, 1988, Bruce Hartmann, et al., "Thermal and Dynamic Mechanical Properties of Polyurethaneureas", pp. 1829-1852.

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