Method of forming a coating on polyolefin substrate

Details Method of forming a coating on polyolefin substrate Method of forming a coating on polyolefin substrate

1985-03-01

1986-01-28

Page, Thurman K.

Stock material or miscellaneous articles

Composite

Of epoxy ether

427 40, 427223, 427301, 427322, 427316, 4273855, 4274123, 4284233, 4284248, B32B 2738, B05D 302, B32B 2740

Patent

active

045671060

ABSTRACT:
A method of forming a coating on a polyolefin substrate comprising the steps of applying a primer coating onto the substrate and then applying a finish coating is disclosed. The method is characterized in that the primer coating consists essentially of a polyurethane prepolymer derived from a polypropylene glycol having a molecular weight from about 400 to about 2,000 and an excess of diphenylmethane diisocyanate.

REFERENCES:
patent: 3023l26 (1962-02-01), Underwood et al.
patent: 3695918 (1972-10-01), Ward
patent: 3900616 (1975-08-01), Moore
patent: 4246319 (1981-01-01), Jacobone
patent: 4268578 (1981-05-01), Bordini et al.

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