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COSMETIC PRODUCTS BASED ON N-HYDROXYBUTYL-CHITOSANS, NEW N-HYDROXYBUTYL-CHITOSANS AND PROCESS FOR THEIR MANUFACTURE
COSMETIC PRODUCTS BASED ON N-HYDROXYBUTYL-CHITOSANS, NEW N-HYDROXYBUTYL-CHITOSANS AND PROCESS FOR THEIR MANUFACTURE
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机译:基于N-羟基丁壳聚糖的化妆品,新的N-羟基丁壳聚糖及其制造工艺
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PCT No. PCT/EP87/00207 Sec. 371 Date Nov. 18, 1987 Sec. 102(e) Date Nov. 18, 1987 PCT Filed Apr. 16, 1987 PCT Pub. No. WO87/06461 PCT Pub. Date Nov. 5, 1987.The invention is directed to cosmetic compositions for the treatment of hair or skin characterized in that they contain new N-hydroxybutyl-chitosans, or their salts, consisting of (a) 4 to 40 mole percent monomer units of the formula (I) IMAGE (I) and (b) 60 to 96 mole percent monomer units of the formula (II) IMAGE (II) wherein R1 and R2 are identical or different and designate hydrogen or the group IMAGE with n being equal to an integer from 1 to 5, provided that R1 and R2 are not simultaneously hydrogen in at least 50 percent of the units of formula (II). In addition, it is directed to new N-hydroxybutyl-chitosans and their salts and a process for producing these new compounds from butylene oxide and chitosan.
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