Process for preparing a urethane coating comprising freezing a p

Details Process for preparing a urethane coating comprising freezing a p Process for preparing a urethane coating comprising freezing a p

1987-06-05

1988-11-29

Anderson, Harold D.

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 80, 528481, 524760, 524839, C08G 1832, C08G 1834, C08F 600, C08K 506

Patent

active

047882700

ABSTRACT:
A frozen urethane premix coating material is prepared by mixing together an isocyanate, a hydroxy terminated aliphatic polyol, and an organic solvent in an amount of at least 75 percent by weight of the total weight of the premix, and then freezing the mixture. The storage life of the mixture is several months, after which it is thawed and used as a coating material. In one form, the premix includes 4,4'-diphenyl methane diisocyanate as the isocyanate and a mixture of toluene and methyl ethyl ketone as the solvent.

REFERENCES:
patent: 3939105 (1976-02-01), Jones, Jr. et al.
patent: 3940542 (1976-02-01), Knopf et al.
patent: 4311815 (1982-01-01), Heine
patent: 4434284 (1984-02-01), Rukavina et al.
patent: 4511626 (1985-04-01), Schumacher
patent: 4576855 (1986-03-01), Okina et al.
patent: 4611043 (1986-09-01), Bruson et al.

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