# US 9,750,668 B2 · Emulsion concentrate

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- Number: US 9,750,668 B2
- Document ID: US9750668B2
- Status: Granted
- Kind: B2
- Application number: 12/377,553
- Filed: 2007-08-06
- Published: 2011-11-24
- Granted: 2017-09-05
- Earliest claimed: 2006-08-14
- Assignees: Cognis IP Management GmbH
- Applicants: Gabriele Strauss; Rolf Kawa; Petra Schulte; Anja Stork
- Inventors: Gabriele Strauss; Rolf Kawa; Petra Schulte; Anja Stork
- Web page: https://patentgrep.com/patent/US9750668B2

## CPC

- A61K 8/06: Emulsions
- A61K 8/0208: {Tissues; Wipes; Patches}
- A61K 8/31: Hydrocarbons
- A61K 8/342: {Alcohols having more than seven atoms in an unbroken chain}
- A61K 8/345: {containing more than one hydroxy group}
- A61K 8/37: Esters of carboxylic acids
- A61K 8/86: Polyethers
- A61P 43/00: Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
- A61Q 19/00: Preparations for care of the skin
- A61Q 19/10: Washing or bathing preparations
- 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)
- A61P: SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS

## Abstract

The present invention relates to an emulsion concentrate containing water-insoluble oil components (A), hydrophilic non-ionic emulsifiers (B), lipophilic co-emulsifiers (C), polyols (D) and water; which comprises less than 50% by weight of water-insoluble oil component (A), based on the total weight of the concentrate, and comprises components (A), (B) and (C) and (D) in a ratio by weight A:B:C:D=1:(0.25-0.6):(0.25-0.6):(0.45-0.65). The invention further relates to the use of these emulsion concentrates, and also to preparations and paper products, non-woven products or textile products for body care and personal cleansing, which comprise water-insoluble oil components (A), hydrophilic non-ionic emulsifiers (B), lipophilic co-emulsifiers (C), and polyols (D) in a ratio by weight A:B:C:D=1:(0.25-0.6):(0.25-0.6):(0.45-0.65).

## Claims

### Claim 1

An emulsion concentrate consisting essentially of, based on the total weight of the concentrate:
(A) less than 50% by weight in total of a water-insoluble oil component,
(B) 1 to 25% by weight of a hydrophilic nonionic emulsifier;
(C) 1 to 25% by weight of a lipophilic coemulsifer;
(D) 8 to 15% of a polyol,
(E) 35 to 55% by weight of an aqueous phase, and
(F) optionally, up to 25% by weight of an additional ingredient, wherein the additional ingredient selected from the group consisting of a preservative, a biogenic active ingredient, a UV photoprotective filter, a thickener, a superfatting agent, a stabilizer, a polymer, an antioxidant, a deodorant, a film former, a swelling agent, an insect repellant, a hydrotrope, a solubilizer, a perfume oil, a dye, and combinations thereof,
wherein the total of (A), (B), (C) and (D) are present in a weight ratio A:B:C:D=1:(0.25-0.6):(0.25-0.6):(0.45-0.65), wherein if an additional ingredient (F) also falls under (A), (B), (C) or (D), then the additional ingredient (F) is counted toward (A), (B), (C) or (D),
wherein the emulsion concentrate is flowable and pumpable at 20° C., and
wherein the water-insoluble component (A) is selected from the group consisting of hydrocarbons which are liquid at 30° C., dialkyl ethers, C6-C22 fatty acids esterified with C6-C22 fatty alcohols, dialkyl carbonates, Guerbet alcohols, silicone oils, esters of linear C6-22 fatty acids with branched alcohols, triglycerides based on C6-10 fatty acids and mixtures thereof, with the proviso that the total of (A), (B), (C), (D), (E), and (F) is 100%.

### Claim 2 (depends on 1)

The emulsion concentrate of claim 1 wherein at least 60% by weight of the water-insoluble oil component (A) has an average polarity of greater than or equal to 20 mN/m and less than or equal to 30 mN/m.

### Claim 3 (depends on 1)

The emulsion concentrate of claim 1, wherein said hydrophilic nonionic emulsifier (B) is selected from the group consisting of ethoxylated linear fatty alcohols, ethoxylated fatty acids, ethoxylated fatty acid partial glycerides, ethoxylated sorbitan fatty acid esters and ethoxylated alkyl (oligo)glycosides, and wherein the compounds have an HLB value of 11-20.

### Claim 4 (depends on 1)

The emulsion concentrate of claim 1, wherein said lipophilic coemulsifier (C) is selected from the group consisting of saturated fatty alcohols having 12-24 carbon atoms, partial esters of polyols having 3-6 carbon atoms, fatty acids having 12-24 carbon atoms and mixtures thereof.

### Claim 5 (depends on 1)

The emulsion concentrate of claim 1, wherein said polyol comprises polyhydric alcohols which contain 2 to 18 carbon atoms.

### Claim 6 (depends on 5)

The emulsion concentrate of claim 5, wherein said polyol comprises 2 to 6 hydroxyl groups.

### Claim 7 (depends on 5)

The emulsion concentrate of claim 5, wherein said polyol comprises at least one compound selected from the group consisting of glycerol, 1,2-propylene glycol, sorbitol, butylene glycol and hexylene glycol.

### Claim 8 (depends on 1)

The emulsion concentrate of claim 1, wherein:
(A) the water-insoluble oil component is present in an amount in the range of 5 to 25 weight %, comprising one or more of: cetearyl isononanoate, cococaprylate/caprate, mineral oil, caprylic/capric triglyceride, and isopropyl palmitate,
(B) the hydrophilic nonionic emulsifier is present in an amount in the range of 5 to 20 weight %, comprising one or more addition products of 8-30 mol of ethylene oxide onto linear fatty alcohols having 12-22 carbon atoms;
(C) the lipophilic coemulsifer is present in an amount in the range of 8 to 15 weight %, comprising one or more partial glycerides of C12 to C22 fatty acids with glycerol, and saturated fatty alcohols having 16-22 carbon atoms; and
(D) the polyol is present in an amount in the range of 8 to 15 weight %, has 2 to 6 hydroxyl groups per molecule and consists of 2 to 6 carbon atoms.

### Claim 9

A cosmetic or pharmaceutical preparation comprising:
a cosmetic or pharmaceutical ingredient; and
an emulsion concentrate consisting essentially of, based on the total weight of the concentrate
(A) less than 50% by weight in total of a water-insoluble oil component;
(B) 1 to 25% by weight of a hydrophilic nonionic emulsifier;
(C) 1 to 25% by weight of a lipophilic coemulsifier;
(D) 8 to 15% by weight of a polyol;
(E) 35 to 55% by weight of an aqueous phase, and
(F) optionally, up to 25% by weight of an additional ingredient, wherein the additional ingredient selected from the group consisting of a preservative, a biogenic active ingredient, a UV photoprotective filter, a thickener, a superfatting agent, a stabilizer, a polymer, an antioxidant, a deodorant, a film former, a swelling agent, an insect repellant, a hydrotrope, a solubilizer, a perfume oil, a dye, and combinations thereof,
wherein the weight ratio A:B:C:D=1:(0.25-0.6):(0.25-0.6):(0.45-0.65), wherein if an additional ingredient (F) also falls under (A), (B), (C) or (D), then the additional ingredient (F) is counted toward (A), (B), (C) or (D),
wherein the emulsion concentrate is flowable and pumpable at 20° C., and
wherein the water-insoluble component (A) is selected from the group consisting of hydrocarbons which are liquid at 30° C., dialkyl ethers, C6-C22 fatty acids esterified with C6-C22 fatty alcohols, dialkyl carbonates, Guerbet alcohols, silicone oils, esters of linear C6-22 fatty acids with branched alcohols, triglycerides based on C6-10 fatty acids, and mixtures thereof, with the proviso that the total of (A), (B), (C), (D), (E), and (F) is 100%.

### Claim 10 (depends on 9)

The cosmetic or pharmaceutical preparation of claim 9, wherein:
(A) the water-insoluble oil component is present in an amount in the range of 5 to 25 weight %, comprising one or more of: cetearyl isononanoate, cococaprylate/caprate, mineral oil, caprylic/capric triglyceride, and isopropyl palmitate,
(B) the hydrophilic nonionic emulsifier is present in an amount in the range of 5 to 20 weight %, comprising one or more addition products of 8-30 mol of ethylene oxide onto linear fatty alcohols having 12-22 carbon atoms;
(C) the lipophilic coemulsifer is present in an amount in the range of 8 to 15 weight %, comprising one or more partial glycerides of C12 to C22 fatty acids with glycerol, and saturated fatty alcohols having 16-22 carbon atoms; and
(D) the polyol is present in an amount in the range of 8 to 15 weight %, has 2 to 6 hydroxyl groups per molecule and consists of 2 to 6 carbon atoms.

### Claim 11

A paper, nonwoven or woven product for bodycare and cleansing comprising:
a substrate; and
an emulsion concentrate consisting essentially of, based on the total weight of the concentrate
(A) less than 50% by weight in total of a water-insoluble oil component;
(B) 1 to 25% by weight of a hydrophilic nonionic emulsifier;
(C) 1 to 25% by weight of a lipophilic coemulsifier;
(D) 8 to 15% by weight of a polyol;
(E) 35 to 55% by weight of an aqueous phase, and
(F) optionally, up to 25% by weight an additional ingredient selected from the group consisting of a preservative, a biogenic active ingredient, a UV photoprotective filter, a thickener, a superfatting agent, a stabilizer, a polymer, an antioxidant, a deodorant, a film former, a swelling agent, an insect repellant, a hydrotrope, a solubilizer, a perfume oil, a dye, and combinations thereof,
wherein the weight ratio A:B:C:D=1:(0.25-0.6):(0.25-0.6):(0.45-0.65), wherein if an additional ingredient (F) also falls under (A), (B), (C) or (D), then the additional ingredient (F) is counted toward (A), (B), (C) or (D), and wherein the water-insoluble component (A) is selected from the group consisting of hydrocarbons which are liquid at 30° C., dialkyl ethers, C6-C22 fatty acids esterified with C6-C22 fatty alcohols, dialkyl carbonates, Guerbet alcohols, silicone oils, esters of linear C6-22 fatty acids with branched alcohols, triglycerides based on C6-10 fatty acids and mixtures thereof, with the proviso that the total of (A), (B), (C), (D), (E), and (F) is 100%.

### Claim 12 (depends on 11)

The paper, nonwoven or woven product for bodycare and cleansing of claim 11, wherein:
(A) the water-insoluble oil component is present in an amount in the range of 5 to 25 weight %, comprising one or more of: cetearyl isononanoate, cococaprylate/caprate, mineral oil, caprylic/capric triglyceride, and isopropyl palmitate,
(B) the hydrophilic nonionic emulsifier is present in an amount in the range of 5 to 20 weight %, comprising one or more addition products of 8-30 mol of ethylene oxide onto linear fatty alcohols having 12-22 carbon atoms;
(C) the lipophilic coemulsifer is present in an amount in the range of 8 to 15 weight %, comprising one or more partial glycerides of C12 to C22 fatty acids with glycerol, and saturated fatty alcohols having 16-22 carbon atoms; and
(D) the polyol is present in an amount in the range of 8 to 15 weight %, has 2 to 6 hydroxyl groups per molecule and consists of 2 to 6 carbon atoms.

### Claim 13 (depends on 1)

A method of preparing a cosmetic and/or pharmaceutical preparation comprising incorporating the emulsion concentrate of claim 1 in a cosmetic and/or pharmaceutical preparation.

### Claim 14 (depends on 1)

A method of preparing a cosmetic and/or pharmaceutical preparation comprising incorporating the emulsion concentrate of claim 1 in a cosmetic and/or pharmaceutical preparation, wherein the resulting preparation is an oil-in-water emulsion.

### Claim 15 (depends on 1)

A method for coating a substrate comprising coating a substrate with the emulsion concentrate of claim 1.

### Claim 16 (depends on 9)

A method for coating a substrate comprising coating a substrate with the cosmetic and/or pharmaceutical preparation of claim 9.
