Cosmetic agent on the basis of quaternary chitosan derivatives,

Details Cosmetic agent on the basis of quaternary chitosan derivatives, Cosmetic agent on the basis of quaternary chitosan derivatives,

1984-07-20

1989-04-18

Ore, Dale R.

Drug, bio-affecting and body treating compositions

Effervescent or pressurized fluid containing

Organic pressurized fluid

8405, 8406, 424 70, 424 71, 424 72, 514844, 514847, 514937, 514944, 536 20, A61K 706, A61K 709, A61K 713, C08B 3708

Patent

active

048225983

DESCRIPTION:

BRIEF SUMMARY
The invention relates to cosmetic agents for treating hairs or the skin with a content of novel macromolecular quaternary compounds derived from chitosan in a suitable cosmetic base.
In furtherance, the invention relates to the novel quaternary chitosan derivatives as well as processes for making same.
It is already known to use in cosmetic agents cation active polymers, in particular polymers which have the quaternary ammonium groups as a conditioning agent, in particular for the treatment of hairs. Due to an interaction between their ammonium groups and the anionic groups of the hair, the cation active polymers have a great affinity to the keratin fiber.
It had been found that the use of such cation active polymers in such cosmetic agents results in numerous advantages; the disentanglement of the hairs as well as the treatment thereof is facilitated and in furtherance the hair gets elasticity and a shiny effect. Due to the affinity to keratin these polymers tend to collect in the hairs after repeated application, so that they become heavier which is undesirable in the end effect.
In furtherance, problems exist with synthetic polymers because of the physiological effect of eventually existing monomer traces which are hardly removable from the polymer.
It was already tried to eliminate these aforementioned disadvantages in that water soluble salts of the chitosan are used in such cosmetic agents, i.e. a polyglucosamin by deacetylation of chitin. In this context, reference is made to applicants' European Pat. No. 0 002 506 as well as their German Pat. No. 26 27 419.
In the same manner as in the majority of the cation active polymers with quaternary grouping, chitosan also very often has the disadvantage that it is less compatible with the anionic active surface active agents which customarily are used in cosmetic agents for treating hairs, in particular in shampoos. It is therefore required to use the effect of chitosan in separate treatments, namely before and/or after the shampooing.
Furthermore, chitosan prooves to be practically unsoluble in neutral and alkalic medium, so that its application, for example, in alkalic permanent wave agents or hair dying agents is not possible. It is an object of the invention to eliminate these disadvantages.
While conducting continuous tests with chitosan and the compounds derived therefrom it was found that certain quaternary chitosan derivatives do not have the aforementioned disadvantages.
Therefore, with these quaternary chitosan derivatives cosmetic agents can be made for treating of hair or the skin which are characterized by surprisingly advantageous characteristics and which are characterized in that in a suitable cosmetic base a quaternary macromolecular polymer compound derived from chitosan is contained having the general formula I (R.sup.3).sub.q ].sub.p H, (I) given numerical value from 0 to 6, q is a given numerical value from 0.005 to 3.0, p denotes a whole number from 10 to 50,000, R.sup.1 is an acetyl residue, R.sup.2 represents a bivalent residue --CH.sub.2 CH(OH)--CH.sub.2 --O--, ##STR2## and R.sup.3 is a bivalent residue ##STR3## with R.sup.4 =C.sub.1 - to C.sub.4 -alkyl and X=Cl, Br, I or CH.sub.3 SO.sub.4.
The agents which contain the quaternary chitosan derivatives of formula 1 in accordance with the invention are generally suitable for treating the skin and/or hairs. For example, they may be present as hair- and/or body washing agent, tinting shampoos, hair dressing creams, hair dressing lotions, hair drier lotions, agents for setting the hair, wash lotions, hair treatments, agents against dandruf, agents for permanent hair styling, agents for dyeing or decoloring of hairs, agents for applying before or after the hair dyeing and as cosmetic agents for care, for protection or for cleansing the skin like skin tonic lotions, shaving lotions, moisture creames, coldcreames, body lotions, sun protection agents or also make-up preparations like make-up creams and rouges.
The content of the novel chitosan derivatives of formula I in the cosmetic agents i

REFERENCES:
Anikeera, Chem. Abs., 1975, vol. 82, pp. 45565x.

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