Polythioalkanecarboxylic anionic products, theur use and prepara

Details Polythioalkanecarboxylic anionic products, theur use and prepara Polythioalkanecarboxylic anionic products, theur use and prepara

1984-08-02

1987-05-26

Trousof, Natalie

Drug, bio-affecting and body treating compositions

Solid synthetic organic polymer as designated organic active...

Polymer from ethylenic monomers only

562426, 562429, 26050115, 424 47, 424 59, 424 71, 132 7, 8405, 514571, A61K 709, C07C149273

Patent

active

046685090

ABSTRACT:
Polythioalkanecarboxylic products of formula: ##STR1## in which R.sub.1 =C.sub.6-30 aromatic or alkylaromatic radical; R.sub.2 =C.sub.4 -C.sub.18 alkyl; A=C.sub.1-3 alkylene; M=H, alkali metal or alkaline earth metal, an ammonium ion or a substituted ammonium ion; z=1-6; m=1-10; n=1-20; and u=zero or 1 are disclosed.
A process of preparation comprising, in a first stage, reacting an alcohol or phenol of formula R.sub.1 (OH) .sub.z (II) with an epihalogenohydrin of formula ##STR2## in which X=Cl or Br, in the presence of a Lewis acid, to give the intermediates of the formula: ##STR3## and in a second stage, the two compounds of formulae R.sub.2 SH (V) and HS--A--COOH (VI), in which R.sub.2 and A have the meanings indicated above, are reacted simultaneously or successively with the compound of the formula (IV) is also disclosed.
The compounds of the formula (I) are used in cosmetic compositions.

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