# US 5,700,455 A · Water soluble, biodegradable polymeric materials for skin care, hair care and cosmetic applications

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- Number: US 5,700,455 A
- Document ID: US5700455A
- Status: Granted
- Kind: A
- Application number: 08/711,813
- Filed: 1996-09-10
- Granted: 1997-12-23
- Earliest claimed: 1994-12-05
- Assignees: Permethyl Specialties, L.L.C.
- Inventors: Rudolph Hinterwaldner; Helmut H. Weldes
- Web page: https://patentgrep.com/patent/US5700455A

## CPC

- A61K 8/0229: {Sticks}
- A61K 8/0212: {Face masks}
- A61K 8/65: Collagen; Gelatin; Keratin; Derivatives or degradation products thereof
- A61K 8/732: {Starch; Amylose; Amylopectin; Derivatives thereof}
- A61K 8/8152: {Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers}
- A61Q 3/02: Nail coatings
- A61Q 5/04: Preparations for permanent waving or straightening the hair
- A61Q 5/08: Preparations for bleaching the hair
- A61Q 5/10: Preparations for permanently dyeing the hair
- A61Q 15/00: Anti-perspirants or body deodorants (deodorisation of air A61L9/00)
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS

## Abstract

Water-soluble, biodegradable polymeric materials are provided for skin, hair and cosmetic use comprising the formula: ##STR1## wherein A is a water soluble, biodegradable polymeric material containing a radical selected from the group consisting of hydroxy, amino, imino, thio and carboxy; X is ##STR2## R.sup.1 is H, --OH, --CN(=nitrile), halogen or C.sub.1 -C.sub.4 alkyl; R.sup.2 is a saturated or unsaturated, at least bivalent hydrocarbon radical optionally substituted with one or more substituents selected from the group consisting of hydroxy-, amino-, C.sub.1 -C.sub.8 alkyl-, C.sub.1 -C.sub.8 alkoxy- and hydroxyalkyl groups which may be optionally substituted with one or more moieties selected from the group consisting of --CO--, --O--C(O)--O--, --C(O)--O--, --O--, --O--C(O)--, --S--, --NR.sup.4 --, --NH--C(O)--and --NH--C(O)--NH--; Y is a connecting link to the main chain of the hydrocolloid A selected from the group consisting of --O--, --O--C(O)--, --C(O)--O--, --NH--C(O)-- and --C(O)--NH; R.sup.3 and R.sup.4 are independently H or alkyl; and n is 0 to 5.

## Claims

### Claim 1

A skin care composition comprising:
(1) of from about 0.1% w/w to about 50.0% w/w of a polymeric material of the formula I: ##STR13## said polymeric material having a molecular weight of from about 500 to about 200,000 daltons,
wherein
A is a water soluble, biodegradable polymeric hydrocolloid containing a radical selected from the group consisting of hydroxy, amino, imino, thio and carboxy; said hydrocolloid is selected from the group consisting of gelatin, whey protein, casein, plant protein, whey protein hydrolyzate, casein hydrolyzate and plant protein hydrolyzate;
X is ##STR14## R.sup.1 is H, --OH, --CN(=nitrile), halogen or C.sub.1 -C.sub.4 alkyl; R.sup.2 is a saturated or unsaturated, at least bivalent hydrocarbon radical optionally substituted with one or more substituents selected from the group consisting of hydroxy-, amino-, C.sub.1 -C.sub.8 alkyl-, C.sub.1 -C.sub.8 alkoxy- and hydroxyalkyl groups which may be optionally substituted with one or more moieties selected from the group consisting of --CO--, --O--C(O)--O--, --C(O)--O--, --O--, --O--C(O)--, --S--, --NR.sup.4 --, --NH--C(O)--and --NH--C(O)--NH--;
Y is a connecting link to the main chain of the hydrocolloid A selected from the group consisting of --O--, --O--C(O)-- and --C(O)--O--;
R.sup.3 and R.sup.4 are independently H or alkyl; and
n is 0 to 5;
2) of from about 0.1% w/w to about 45.0% w/w of a cosmetically acceptable excipient selected from the group consisting of a nonionic surfactant, a cationic surfactant, an anionic surfactant, an emollient, a colorant, a preservative and a perfume; and
3) of from about 49.9% w/w to about 54.9% w/w water.

### Claim 2

A hair care composition comprising:
(1) of from about 0.5% w/w to about 35.0% w/w of a polymeric material of the formula I ##STR15## said polymeric material having a molecular weight of from about 200 to about 2,000,000 daltons, wherein
A is a water soluble, biodegradable polymeric hydrocolloid containing a radical selected from the group consisting of hydroxy, amino, imino, thio and carboxy, said hydrocolloid is selected from the group consisting of of gelatin, whey protein, casein, plant protein, whey protein hydrolyzate, casein hydrolyzate and plant protein hydrolyzate;
X is ##STR16## R.sup.1 is H, --OH, --CN(=nitrile), halogen or C.sub.1 -C.sub.4 alkyl; R.sup.2 is a saturated or unsaturated, at least bivalent hydrocarbon radical optionally substituted with one or more substituents selected from the group consisting of hydroxy-, amino-, C.sub.1 -C.sub.8 alkyl-, C.sub.1 -C.sub.8 alkoxy- and hydroxyalkyl groups which may be optionally substituted with one or more moieties selected from the group consisting of --CO--, --O--C(O)--O--, --C(O)--O--, --O--, --O--C(O)--, --S--, --NR.sup.4 --, --NH--C(O)--and --NH--C(O)--NH--;
Y is a connecting link to the main chain of the hydrocolloid A selected from the group consisting of --O--, --O--C(O)-- and --C(O)--O--;
R.sup.3 and R.sup.4 are independently H or alkyl; and
n is 0 to 5;
2) of from about 2.0% w/w to about 35.0% w/w of a cosmetically acceptable excipient selected from the group consisting of a nonionic surfactant, a cationic surfactant, an anionic surfactant, an emollient, a colorant, a preservative and a perfume; and
3) of from about 62.5% w/w to about 64.5% w/w water.