Talc-based external mold release agent for polyurethane foams

Details Talc-based external mold release agent for polyurethane foams Talc-based external mold release agent for polyurethane foams

1978-01-03

1978-12-26

Cockeram, H.S.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

252182, 252428, 252431R, 264338, 264DIG14, 264DIG77, 521 51, 521126, 521127, 260 18TN, C08G 1814, B29C 104, C09K 300

Patent

active

041316622

ABSTRACT:
The instant invention is directed to novel mold release agents for polyurethane resins and to the use thereof, particularly in the closed mold forming of polyurethane foams. The mold release agents disclosed herein are applied to the surface of the mold prior to molding and broadly comprise talc dispersed in an emulsion of water and an organic solvent.

REFERENCES:
patent: 3468991 (1969-09-01), Krug
patent: 3474166 (1969-10-01), Babcock
patent: 3694530 (1972-09-01), Wolfe
patent: 3952079 (1976-04-01), Ozelli et al.
patent: 4028120 (1977-06-01), Emond
patent: 4038088 (1977-07-01), White et al.

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