Foam regulators suitable for use in detergents and cleaning prep

Details Foam regulators suitable for use in detergents and cleaning prep Foam regulators suitable for use in detergents and cleaning prep

1988-09-30

1991-03-26

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252358, 25217414, 25217415, B01D 1904

Patent

active

050026950

ABSTRACT:
A foam regulator consisting essentially of a mixture, applied to a particulate support material, of (a) 5 to 60% of a paraffin wax, (b) 20 to 90% of a microcrystalline paraffin wax which shows defined melting behavior as a function of temperature and (c) 5% to 20% of a diamide derived from C.sub.2 -C.sub.7 diamines and C.sub.12 -C.sub.22 fatty acids which is present in the paraffin mixture in very finely divided form. The mixture is preferably prepared by reaction of the diamines with the fatty acids in a molten mixture of components (a) and (b) in the presence of an acidic catalyst.

REFERENCES:
patent: 3652453 (1972-03-01), MacDonald
patent: 3677963 (1972-07-01), Lichtman et al.
patent: 3951853 (1976-04-01), Suwala
patent: 4032473 (1977-06-01), Berg et al.
patent: 4192761 (1980-03-01), Peltre
patent: 4225456 (1980-09-01), Schmidt et al.
patent: 4265779 (1981-05-01), Gandolfo et al.
patent: 4514319 (1985-04-01), Kulkarni et al.
patent: 4599189 (1986-07-01), Wuhrmann et al.
patent: 4801401 (1989-01-01), Schulz et al.
MacKenzie and Mitchell: Differential Thermal Analysis, A Review, vol. 87, pp. 420-432.

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