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US 6,165,455 AGranted
Personal care compositions containing thermoplastic elastomeric graft copolymers
AssigneeThe Procter & Gamble Company
InventorsPeter Marte Torgerson, Sanjeev Midha
Life of this patent
Estimating the term…
Abstract
The present invention relates to hair care compositions containing nonpolar graft thermoplastic elastomeric copolymers and a water insoluble volatile solvent for the copolymer. This invention relates to styling products such as sprays and mousses, to hair conditioning products such as rinses and leave on conditioners, and to shampoo products useful for both cleansing and conditioning the hair.
Claims24
A hair care composition, comprising:
- (A) a nonpolar thermoplastic elastomeric copolymer having a backbone and two or more hydrophobic polymeric side chains, said copolymer formed from the copolymerization of randomly repeating A and B units wherein said copolymer comprises:
- (i) from about 20% to about 90% by weight of said A units, wherein said A units are monomer units copolymerizable with said B units;
- and
- (ii) from about 10% to about 60% by weight of said B units, wherein said B units are hydrophobic macromonomer units having a polymeric portion and a moiety copolymerizable with said A units,
- wherein said A units, in conjunction with said copolymerizable moieties of said B units form said backbone;
- wherein said polymeric portion of said B units forms said hydrophobic side chains;
- wherein said copolymer has a weight average molecular weight greater than about 10,000;
- wherein said copolymer exhibits at least two distinct T.sub.g values, said first T.sub.g corresponding to said backbone and having a value less than about 0.degree. C., and said second T.sub.g corresponding to said hydrophobic polymeric side chains and having a value greater than about 25.degree. C.;
- and wherein said B macromonomer units are of the formula:
- [I].sub.n --[W].sub.m --E
- wherein I is a chemical initiator moiety selected from the group consisting of hydrogen, C1-40 straight chain or branched chain alkyl, benzyl, 1-phenyl substituted C2-40 straight chain or branched chain alkyl, 1,1-diphenyl substituted C2-40 straight chain or branched alkyl, and mixtures thereof;
- n is 0 or 1;
- W is a hydrophobic monomer unit corresponding to the formula ##STR17## wherein R.sup.5 is selected from the group consisting of H and C1-8 straight or branched chain alkyl;
- R.sup.6, R.sup.7, R.sup.8, R.sup.9, and R.sup.10 are independently selected from the group consisting of C1-C8 straight or branched chain alkyl such that each of R.sup.6, R.sup.7, R.sup.8, R.sup.9, and R.sup.10 are not simultaneously H;
- m is an integer from about 10 to about 2000;
- and E is an ethylenically unsaturated endcapping moiety, copolymerizable with A and C, selected from the group consisting of vinyl, allyl, acryloyl, methacryloyl, ethacryloyl, 2-vinyl benzyl, 3-vinyl benzyl, 4-vinyl benzyl, 2-vinyl benzoyl, 3-vinyl benzoyl, 4-vinyl benzoyl, 1-butenyl, 1-propenyl, isobutenyl, isoprenyl, cyclohexenyl, cyclopentenyl, and mixtures thereof;
- (B) a water-insoluble, volatile solvent for said copolymer suitable for application to the hair;
- and
- (C) a carrier suitable for delivery of said copolymer and said solvent to the hair.
16 more elements
A hair care composition, comprising:
- (A). a thermoplastic elastomeric copolymer having a backbone and two or more hydrophobic polymeric side chains, said copolymer formed from the copolymerization of randomly repeating A, B, and C units and corresponding to the formula
- [A].sub.a [B].sub.b [C].sub.c
- wherein
- (i) A is at least one monomer unit copolymerizable with B and C;
- selected from the group consisting of acrylic acid esters, N-alkyl acrylamides, alkyl vinyl ethers, alkyl substituted styrenes, and mixtures thereof;
- and a is an integer of about 100 or greater;
- (ii) B is at least one nonpolar, hydrophobic macromonomer unit copolymerizable with A and C corresponding to the formula ##STR24## wherein I is selected from the group consisting of hydrogen, C1-40 straight or branched chain alkyl, benzyl, 1-phenyl substituted C2-40 straight or branched chain alkyl, 1,1-diphenyl substituted C2-40 straight or branched chain alkyl, and mixtures thereof;
- R.sup.5 is selected from the group consisting of H and C1-C8 alkyl;
- R.sup.6, R.sup.7, R.sup.8, R.sup.9, and R.sup.10 are independently selected from the group consisting of C1-C8 straight or branched chain alkyl such that each of R.sup.6, R.sup.7, R.sup.8, R.sup.9, and R.sup.10 are not simultaneously H;
- m is an integer from about 10 to about 2000;
- and E is an ethylenically unsaturated moiety, copolymerizable with A and C, selected from the group consisting of vinyl, allyl, acryloyl, methacryloyl, ethacryloyl, 2-vinylbenzyl, 3-vinylbenzyl, 4-vinylbenzyl, 2-vinylbenzoyl, 3-vinylbenzoyl, 4-vinylbenzoyl, 1-butenyl, 1-propenyl, isobutenyl, cyclohexenyl, cyclopentenyl, and mixtures thereof;
- and b is an integer of about 2 or greater;
- and
- (iii) C is a polysiloxane macromonomer unit copolymerizable with A and B corresponding to the formula
- E'(Y).sub.w Si(R.sup.11).sub.3-t (Z).sub.t
- wherein E' is an ethylenically unsaturated moiety copolymerizable with A and B;
- Y is a divalent linking group;
- R.sup.11 is selected from the group consisting of H, lower alkyl, aryl, or alkoxy;
- Z is a monovalent siloxane polymeric moiety having a number average molecular weight of at least about 500, is essentially unreactive under copolymerization conditions, and is pendant from said backbone after polymerization;
- w is 0 or 1;
- t is an integer from 1 to 3;
- and c is an integer of zero or greater;
- and
- (B). a water insoluble volatile solvent for said copolymer suitable for application to the hair.
21 more elements
Dependencies are inferred from the claim text.