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Hair and skin care compositions containing siloxane-based polyamide copolymers

  • US 20030082129A1
  • Filed: 08/06/2002
  • Published: 05/01/2003
  • Est. Priority Date: 08/07/2001
  • Status: Abandoned Application
First Claim
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1. A base composition comprising:

  • A) a silicone fluid, B) a silicone immiscible organic substance, C) a siloxane-based polyamide having the formula;



    where, (1) DP (degree of polymerization) is 1-700, (2) n is 1-500, (3) X is a linear or branched chain alkylene having 1-30 carbons, (4) Y is a linear or branched chain alkylene having 1-40 carbons,  

    wherein, (a) the alkylene group may optionally and additionally contain in the alkylene portion at least one of (i) 1-3 amide linkages;

    (ii) a C5 or C6 cycloalkane;

    or (iii) phenylene, optionally substituted by 1-3 members which are independently C1-C3 alkyls;

    (b) the alkylene group itself may optionally be substituted by at least one of (i) hydroxy;

    (ii) a C3-C8 cycloalkane;

    (iii) 1-3 members which are independently C1-C3 alkyls;

    phenyl, optionally substituted by 1-3 members which are independently C1-C3 alkyls;

    (iv) a C1-C3 alkyl hydroxy;

    or (v) a C1-C6 alkyl amine;

    (c) Y can be Z where Z is T(R20)(R21)(R22) where R20, R21 and R22 are each independently linear or branched C1-C10 alkylenes; and

    T is CR in which R is hydrogen, the group defined for R1-R4, or a trivalent atom such as N, P and Al;

    (5) each of R1-R4 is independently methyl, ethyl, propyl, isopropyl, a siloxane chain, or phenyl, wherein the phenyl may optionally be substituted by 1-3 members, which are methyl or ethyl;

    (6) X, Y, DP, and R1-R4 may be the same or different for each polyamide unit, wherein the base composition is a stable dispersion.

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