Process for making quaternary chitosan derivatives for cosmetic

Details Process for making quaternary chitosan derivatives for cosmetic Process for making quaternary chitosan derivatives for cosmetic

1989-03-08

1990-05-01

Griffin, Ronald W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536124, 514 55, 514881, 514846, 424 70, 424 47, C08B 3708, C07G 1700, A61K 706, A61K 3173

Patent

active

049219499

ABSTRACT:
The quaternary chitosan derivatives useful in cosmetic compositions are made by a process comprising reacting a chitosan consisting of 50 to 100% deacetylized chitin or a structurally modified chitosan made by reprecipitating and deep freezing, with glycidyl trialkyl ammonium halogenide, particularly glycidyl trimethyl ammonium chloride, and, if necessary, with glycidol. The reaction mixture is advantageously stirred for several hours at 10.degree. to 100.degree. C. The reaction may be performed in the presence of an organic or inorganic acid or base in water.

REFERENCES:
patent: 4822598 (1989-04-01), Lang et al.

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