Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1999-06-04
2000-05-23
Peselev, Elli
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
536 171, 536120, 5361231, 556443, C07H 100
Patent
active
060667273
ABSTRACT:
Disclosed is a novel method for the preparation of an organo-polysiloxane-grafted polysaccharide compound which is particularly useful as an additive ingredient in various types of cosmetic and toiletry preparations. The method utilizes a reaction between epoxy groups of a diorganopolysiloxane, e.g., dimethylpolysiloxane, terminated at a single molecular chain end with a 2-(3,4-epoxycyclohexyl)ethyl group and carboxyl groups in a carboxyl group-containing polysaccharide compound such as hydroxypropyl methyl cellulose phthalate and hydroxypropyl methyl cellulose acetate succinate dissolved in an organic solvent. The reaction proceeds efficiently without addition of any catalytic compounds almost quantitatively under moderate reaction conditions.
REFERENCES:
patent: 5583244 (1996-12-01), Uchida et al.
patent: 5831080 (1998-11-01), Sejpka et al.
Ono Ichiro
Yamamoto Akira
Peselev Elli
Shin-Etsu Chemical Co. , Ltd.
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