WO2006067645A1

WO2006067645A1 - Personal care compositions comprising diglycerol

Info

Publication number: WO2006067645A1
Application number: PCT/IB2005/053917
Authority: WO
Inventors: Jacqueline Christine Lucia; Roger E. Stier
Original assignee: Firmenich Sa
Priority date: 2004-12-20
Filing date: 2005-11-28
Publication date: 2006-06-29

Abstract

A personal care composition comprising diglycerol as a humectant.

Description

PERSONAL CARE COMPOSITIONS COMPRISING DIGLYCEROL

Summary of the Invention

The invention pertains to personal care compositions comprising diglycerol, either alone or in combination with other polyglycerols. The personal care compositions, like cleansing compositions, include, for example, body wash, shampoo, baby wash, liquid hand soap, hair and skin conditioners, shaving creams and gels, moisturizing shaving preparations, lotions, moisturizing creams and the like. The personal care compositions may further comprise one or more of solvents, humectants, surfactants, emulsifiers, emollients, chelating agents, preservatives, buffers, viscosity modifiers, extracts, skin conditioners, skin protectants, proteins, antimicrobial agents, fragrances, polymers, pH adjusters, and the like.

Detailed Description of the Invention

The personal care compositions comprise diglycerol which functions as a humectant. Thus, the compositions comprise a humectant that comprises diglycerol. The diglycerol may be the only polyglycerol in the humectant or it may be used in conjunction with other polyglycerols, such as all polyglycerol homologs. The humectant in the composition may comprise, consist essentially or consist of diglycerol. Also, the humectant in the personal care compositions may comprise, consist essentially or consist of diglycerol and other polyglycerols. The personal care compositions may comprise other humectant material in addition to the diglycerol and other polyglycerol material.

Diglycerol is a polyol consisting of two molecules of glycerol bonded by an ether linkage and is available from Solvay Interox, Inc., Houston, Texas, USA ("Solvay"). Diglycerol is a viscous liquid which is a clear and aesthetically pleasing product. Diglycerol is practically colorless and odorless and very mild to the skin. Compared to glycerol, diglycerol has a lower hydroxy number than glycerol which imparts a lower water binding affinity to the composition.

The compositions of the invention may comprise polyglycerol and all of its homologs. The other polyglycerol materials which may be used as humectant material for the personal care compositions include triglycerol, tetraglycerol, pentaglycerol, hexaglycerol, heptaglycerol and octaglycerol. Polyglycerol-3 from Solvay may be used in the composition. Polyglycerol-3 is a combination of diglycerol, tetraglycerol, pentaglycerol, hexaglycerol, heptaglycerol and octaglycerol, with trace amounts of monoglycerol. When polyglycerol-3 is used in the compositions, the polyglycerol-3 may be the source of the diglycerol in the personal care compositions, or a separate source of diglycerol may be used in addition to the polyglycerol-3 which also provides diglycerol to the composition. A polyglycerol material available from MMP, Inc., South Plainfield, New Jersey, USA under the tradename Polycast-3 may be used in the invention.

The diglycerol provides the personal care composition with increased initial impact of fragrance, improved fragrance retention, enhanced perceived smoothness and silkiness and improved emollience and conditioning. In addition, the diglycerol, and the combination of the diglycerol with other polyglycerols in the compositions, provides odor masking qualities to the personal care compositions. Thus, the diglycerol, optionally with the other polyglycerols, effectively masks objectionable odors which inherently result in a number of personal care compositions and provides a more preferred odor profile. Such objectionable odors can result from raw ingredients, for example, herbal extracts, proteins, active ingredients and the like.

The personal care compositions may also comprise cationic polymeric materials which act synergistically with the diglycerol and other optional polyglycerols, when part of the compositions, to provide the compositions with improved and unexpected properties, such as increased initial impact of fragrance, improved fragrance retention and enhanced smoothness, silkiness, and moisturizing, among others.

The cationic polymeric materials are film forming polymers which, upon application to the skin of a user, form films which are substantive to hair and skin. Examples of cationic polymers useful in the invention include MERQUAT^® polymers, such as MERQUAT^® 550, from Nalco Company, Naperville, Illinois, USA. MERQUAT^® 550 is a copolymer of dimethyldiallylammonium chloride and acrylamide that can be used in a synergistic combination with other functional additives in the composition, for example, the diglycerol and the optional other polyglycerols, to provide the benefits of moisturizing, conditioning, film formation, and improved skin feel, in addition to the unexpected benefits discussed above.

Another example of cationic polymers useful in the invention are quatemized hydroxyl ethyl cellulose ethers available from Amerchol (Dow) Midland, Michigan, USA under the trade name UCARE^®, for example, UCARE^® polymer JR400. Such polymers are water soluble substantive polymers having a cellulosic backbone which lend a pleasant, smooth, conditioned feel to skin and hair. These polymers can function to reduce irritation potential of surfactants and other materials that may be in the composition, in addition to the synergistic benefits discussed above with respect to the humectants (e.g. the polyols) in the compositions.

The invention involves personal care compositions comprising diglycerol. The invention further pertains to such personal care compositions wherein the invention further comprises polyglycerol and all of its homologs, including triglycerol, tetraglycerol, pentaglycerol, hexaglycerol, heptaglycerol and octaglycerol. The invention further involves personal care compositions comprising cationic polymers and diglycerol and polyglycerols. In all embodiments, the personal care compositions may also comprise one or more solvents, humectants, surfactants, emulsifiers, emollients, chelating agents, preservatives, buffers, viscosity modifiers, extracts, skin conditioners, skin protectants, proteins, antimicrobial agents, fragrances, polymers, pH adjusters and the like.

All parts and percentages set forth herein are by weight unless otherwise specified. EXAMPLES

Examples 1 and 2

Body wash compositions comprising diqlvcerol were made by combining the following components

Examples 3 to 5

Example 6

A body wash composition comprising diglycerol was made by combining the following components

Fragrance in an amount of 1.5% by weight based on the total weight of the composition was added to the formulation.

Example 7

A two in one shampoo and body wash composition having the following components was made by the procedure set forth below

Procedure:

1. Add the Deioinzed Water into a suitable mixing vessel. Slowly sift in the

UCARE^® JR400 with agitation and begin heating to approximately 120° F. 2. When the UCARE^® JR400 is fully dispersed and batch is clear add the

Diglycerol and mix until clear.

3. Add the Standapol ES-2 Velvetex BK-35, Plantaren 1200, Plantaren 2000, and Glucam E-20 with continued mixing.

4. Add the Versene Na2, with continued mixing until uniform. 5. Add the Glydant with continued mixing until uniform.

6. Add the Sodium Chloride with continued mixing until uniform.

7. Add the Cromollient SCE, mixing until uniform. Continue mixing for about 10 minutes.

The 2-1 body wash had a pH of 5.45.

Examples 8 and 9

Liquid hand soaps comprising diglvcerol were made from the following components

Example 10

A three in one shampoo, body wash and conditioner composition comprising diglvcerol was made by combining the following components

Examples 11 and 12

A non-aerosol foaming body wash and shampoo composition comprising diglycerol was made by combining the following components

Examples 13 and 14

Non-aerosol shave foam compositions comprising diqlycerol were made by combining the following components A total of 500 grams of each composition was made.

Example 15

A non-aerosol shaving foam comprising diqlycerol was made from the following components

The composition was made by the following procedure.

1. Add the Hamposyl L-30, Standapol ES-2, Velvetex BK-35, Plantaren 1200, Plantaren 2000, Cromollient SCE, Abil B8843, Vitamin E Acetate, and Tea Tree Oil and mix until uniform, and begin heating to about 115⁰F to about

12O⁰F.

2. Premix the Deionized Water, Versene Na2, Glydant, Diglycerol, Aloe Vera Extract, and Chamomile Extract into a suitable mix vessel and begin agitating and heating to about 115⁰F to about 12O⁰F, then add to main batch (from Step 1 ) with continued mixing until uniform (about 15 minutes). Batch should be clear. 3. Pour into appropriate Airspray foamer container.

Examples 16 and 17

Body wash compositions comprising diqlycerol were made from the following components

The body wash compositions had a pH of 5.5. Fragrance in an amount of 1.1% by weight based on the total weight of the composition was added to each formulation. Example 18

A shampoo composition comprising diqlycerol was made by combining the following components

The shampoo was made by the following procedure.

1. Add the Deionized Water into a suitable mix vessel, and slowly sift in the UCARE^® JR400 and mix until fully dispersed.

2. Add the Diglycerol and mix until uniform.

3. Add the Versene Na2 and mix until uniform.

4. Add the Glydant and mix until uniform. 5. Add the Standapol ES-2, followed by the Velvetex BK-35, Plantaren 1200, Plantaren 2000, Mack Pro Plus Rice C and Glucam E-20, mixing until uniform.

6. Add the Cromollient SCE mixing until uniform.

7. Add the Sodium Chloride and mix for about 15 minutes until fully dissolved.

8. Add the Aloe Vera, Soybean and Bamboo extract and mix until uniform.

The shampoo was clear with a pale yellow straw color.

Examples 19 to 22

Shaving foam compositions comprising diglvcerol were made by combing the following components

Examples 23 and 24

Facial cleanser compositions comprising diqlycerol were made by combing the following components. The facial cleanser compositions were clear.

Examples 25 and 26

Liquid hand soap compositions comprising diqlycerol were made by combing the following components

Although in each example various components are stated as having a certain function, this should not be construed as limiting the invention in that each component can have a different function in a different, or the same, composition, or may act synergistically.

Claims

1CLAIMS

1. A personal care composition comprising diglycerol as a humectant.

2. A composition according to claim 1 , wherein diglycerol is present in admixture with other polyglycerols.

3. A composition according to claim 2, wherein the polyglycerol is triglycerol, tetraglycerol, pentaglycerol, hexaglycerol, heptaglycerol and/or octaglycerol.

4. A composition according to any one of claims 1 to 3, which further contains a cationic polymeric material capable of acting synergetically with diglycerol.

5. A composition according to claim 4, wherein the cationic polymer is a MERQUAT^® or UCARE^® type polymer.

6. A composition according to any one of the preceding claims, in the form of a body wash, a shampoo, a baby wash, a liquid hand soap, a hair or skin conditioner, a shaving cream or gel, a moisturizing shaving preparation, a skin lotion or a moisturizing cream.