Urethane prepolymer

Details Urethane prepolymer Urethane prepolymer

1975-05-09

1977-07-26

Weinberger, Lorraine A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 775AT, C07C12506

Patent

active

040383040

ABSTRACT:
A polyurethane prepolymer composition comprising (1) not less than 0.65 by weight of the idealized adduct from trimethylolpropane with 3 moles of 3-isocyanatomethyl-3,5,5-trimethylcyclohexylisocyanate and (2) not more than 0.05 by weight of 3-isocyanatomethyl-3,5,5-trimethylcyclohexylisocyanate relative to the whole composition is very suitable for an isocyanate component of a two-package urethane coating and gives a coating film having excellent gloss, weathering resistance, adhesivity and impact resistance.

REFERENCES:
patent: 3634306 (1972-01-01), Schroeder
patent: 3830785 (1974-08-01), Matsui
patent: 3883577 (1975-05-01), Rabizzoni

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