Macromolecular, surface-active, quaternary, N-substituted chitos

Details Macromolecular, surface-active, quaternary, N-substituted chitos Macromolecular, surface-active, quaternary, N-substituted chitos

1988-11-14

1990-12-11

Cashion, Jr., Merrell C.

Drug, bio-affecting and body treating compositions

Effervescent or pressurized fluid containing

Organic pressurized fluid

424 70, 424 71, 536 20, 8405, 8406, A61K 700

Patent

active

049769529

DESCRIPTION:

BRIEF SUMMARY
Our present invention relates to a cosmetic agent for the treatment of the hair and skin. This composition contains macromolecular surface-active, quaternary N-substituted compounds which are derived from chitosan and are used in a suitable cosmetic base.
Our present invention also relates to macromolecular, surface-active, quaternary N-substituted chitosan derivatives.
The use of cationic polymers, preferably polymers containing quaternary ammonium groups, as conditioning agents, in cosmetics, particularly for the treatment of hair, is known. Because of an interaction between their ammonium groups and the anionic groups of the hair the cationic polymers have a great affinity for the keratin fiber.
It has been found that the use of this type of cationic polymer in these cosmetic agents has many advantages; the disentanglement of the hairs and their treatment are made more easy. Furthermore, sheen and bounce are imparted to the hair. However, because of their affinity for keratin these polymers tend to accumulate on the hair so that it becomes heavier and this is undesirable for the final effect.
Furthermore, the synthetic polymers cause problems due to the physiological effect of possibly present monomer traces, which are difficult to remove from the polymer.
Attempts were made to overcome the above-mentioned disadvantages by applying, in these cosmetic compositions, water-soluble salts of chitosan, i.e., a polyglucosamine producible by deacetylation of chitin. In this connection the applicant's European Patent No. 0 002 506 and German Patent No. 26 27 419 are referred to.
In the same manner as in the majority of the cation-active polymers with quaternary groupings chitosan frequently has the disadvantage that it is only slightly compatible with the anionic surface-active compounds conventionally used in hair treatment agents, particularly in shampoos. Therefore, it is necessary to cause the chitosan to react in separate treatments, namely prior to and/or after shampooing. Furthermore, it has been found that chitosan is practically insoluble in a neutral and alkaline medium so that, for example, its application is not possible in alkaline permanent wave agents or hair dyes.
Most of the above-mentioned disadvantages can be avoided by the application of specific water-soluble cation-active chitosan derivatives according to the applicant's DE-OS No. 32 45 784, DE-OS No. 35 01 891 and DE-OS No. 35 02 833 instead of chitosan salts. However, when using these chitosan derivatives in aerosol foam preparations or emulsions it is still required to add to said these surface-active compounds, as for example, cationic surfactants, as emulsifiers or foam-forming agents since these emulsifier or foam-forming agents have no emulsifying or foam-forming properties. However, the physiological compatibility of the agents is impaired by the addition of emulsifiers so that irritations of the skin, of the scalp or of the eyes can result.
It is an object of our invention to provide a cosmetic composition or agent based on cation-active chitosan derivatives which requires a reduced number of additives such as surface-active compounds or emulsifiers.
It is another object of our invention to provide an improved surface-active cationic chitosan derivatives.


SUMMARY OF THE INVENTION

Therefore, the present invention provides water-soluble chitosan derivatives having setting and conditioning properties as well as emulsifying and foam-forming properties while the physiological compatibility is good.
On continuing the tests with chitosan and the compounds derived therefrom, it has been found that specific water-soluble cationic chitosan derivatives have the properties of both a polymer and a surfactant.
The application of these chitosan derivatives allows, for example, the production of foam fixatives having outstanding foaming and setting properties without the use of additional foam-forming agents or polymers. Furthermore, when using these surface-active chitosan derivatives in emulsions they are able to act simultaneously as emulsif

REFERENCES:
patent: 4772689 (1988-09-01), Lang et al.
patent: 4772690 (1988-09-01), Lang et al.
patent: 4780310 (1988-10-01), Lang et al.
patent: 4822598 (1989-04-01), Lang et al.
patent: 4835266 (1989-05-01), Lang et al.
patent: 4845204 (1989-07-01), Lang et al.

Affiliated with

Also associated with

Rating

Macromolecular, surface-active, quaternary, N-substituted chitos does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Macromolecular, surface-active, quaternary, N-substituted chitos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Macromolecular, surface-active, quaternary, N-substituted chitos will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-388938