Release agent for urethane foam molding

Details Release agent for urethane foam molding Release agent for urethane foam molding

1989-09-11

1990-11-13

Bell, Mark L.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 3825, 106 8, 106271, B28B 736, B28B 738

Patent

active

049699520

ABSTRACT:
A novel aqueous release agent is described, which contains as release-active subtances oil and/or wax emulsified in water as the carrier and which also contains as a further release-active substance one or more aliphatic primary, secondary and/or tertiary amines with at least one C.sub.12 -C.sub.24 alkyl radical and one or more ammonium salts as the emulsifier for the amine or amines. The invention is based on the surprising finding that hydrophobic amines (so-called fatty amines) are release-active substances. It has also surprisingly been found according to the invention that when using ammonium salts as the emulsifier, mould removal characteristics are not only impaired, but often even improved, which is not the case with conventional emulsifiers. The release agent according to the invention is particularly suitable in processes for producing polyurethane foam articles.

REFERENCES:
patent: 3374100 (1968-03-01), Goldstein
patent: 3406032 (1968-10-01), Enders
patent: 3518099 (1970-06-01), Holbus
patent: 3551168 (1970-12-01), Atherton
patent: 3888690 (1975-06-01), Geiser
patent: 3893868 (1975-07-01), Klement et al.
patent: 3992502 (1976-11-01), Krishnan
patent: 4609511 (1986-09-01), Fischer et al.
patent: 4770827 (1988-09-01), Fisher
patent: 4783296 (1988-11-01), Fischer
Noller, C. R., "Chemistry of Organic Compounds" 1965 pp. 252, 258, 259.

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