Method for using mold release

Details Method for using mold release Method for using mold release

1972-04-28

1976-11-16

Kucia, Richard R.

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

264337, 264338, B29C 104

Patent

active

039925021

ABSTRACT:
A polyurethane reaction mixture mold release comprising 1 to 5 percent by weight of a sodium or potassium soap of a carboxylic acid of 11 to 22 carbons in a diluent of alcohol or water, the mold release being applied to a mold, then addition of a polyurethane reaction mixture to form a shaped polyurethane of the microcellular type, stripping the shaped article from the mold, flushing with water at 40.degree. to 95.degree.C., drying, applying a paint coat of 3 to 10 mils over the polyurethane article to obtain a polyurethane decorative article having a paint coat resistant to peeling.

REFERENCES:
patent: 2801150 (1957-07-01), Koryta
patent: 3413390 (1968-11-01), Heiss
patent: 3726952 (1973-04-01), Boden

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