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Microemulsion and shaving apparatus comprising a microemulsion

A technology of microemulsion and hair shaving, applied in the field of microemulsion, can solve problems such as hard bristles

Inactive Publication Date: 2008-10-15
RECKITT BENCKISER (UK) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] While shaving provides an effective method of hair removal, hair trimmed with a shaving blade tends to have a bristly appearance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Microemulsions were prepared from the following components.

[0076] components

weight%

(i)

PEG-8 Caprylic / Capric Glycerides

7.0

(ii)

Polyglyceryl(3) diisostearate

7.0

(iii)

Polydimethylsiloxane Diquaternary Ammonium Salt

26.6

(iv)

cyclohexasiloxane or cyclomethicone

30.1

(v)

Ethoxylated Diethylene Glycol

7.4

(vi)

preservatives

0.60

(vii)

N-acetyl-L-cysteine

0.92

(viii)

water

20.38

[0077] Prepare a 3% solution of N-acetyl-L-cysteine ​​in distilled water. Components (i) to (vi) are then sequentially mixed together at room temperature. The N-acetyl-L-cysteine ​​solution is then added to this mixture, thereby forming a microemulsion. Add sufficient N-acetyl-L-cysteine ​​solution to ensure that the concentration of N-acetyl-L-cysteine ​​in the microemulsion is 0.52% N-acetyl-L-cysteine acid. The concentratio...

Embodiment 2

[0080] Microemulsions were prepared from the following components.

[0081] components

weight%

(i)

PEG-8 Caprylic / Capric Glycerides

7.0

(ii)

Polyglyceryl(3) diisostearate

7.0

(iii)

Polydimethylsiloxane Diquaternary Ammonium Salt

26.6

(iv)

cyclohexasiloxane or cyclomethicone

30.1

(v)

Ethoxylated Diethylene Glycol

7.4

(vi)

preservatives

0.60

(vii)

NAC

0.92

(viii)

salicylic acid

1.0

(ix)

water

19.38

[0082] A 3% solution of N-acetyl-L-cysteine ​​in distilled water was prepared; salicylic acid was prepared in the same solution as the NAC. Components (i) to (vi) are then sequentially mixed together at room temperature. A solution of N-acetyl-L-cysteine ​​and salicylic acid is then added to this mixture, thereby forming a microemulsion. Add sufficient N-acetyl-L-cysteine ​​solution to ensure that the co...

Embodiment 3

[0085] Microemulsions were prepared from the following components.

[0086] components

weight%

(i)

PEG-8 Caprylic / Capric Glycerides

7.0

(ii)

Polyglyceryl(3) diisostearate

7.0

(iii)

Polydimethylsiloxane Diquaternary Ammonium Salt

26.6

(iv)

cyclohexasiloxane or cyclomethicone

30.1

(v)

Ethoxylated Diethylene Glycol

7.4

(vi)

preservatives

0.60

(vii)

NAC

0.92

(viii)

glycolic acid

5.5

(ix)

water

14.88

[0087]Prepare a 3% solution of N-acetyl-L-cysteine ​​in distilled water. Components (i) to (vi) are then sequentially mixed together at room temperature. The N-acetyl-L-cysteine ​​solution is then added to this mixture, thereby forming a microemulsion. Add sufficient N-acetyl-L-cysteine ​​solution to ensure that the concentration of N-acetyl-L-cysteine ​​in the microemulsion is 0.52% N-acetyl-L-cysteine ...

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PUM

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Abstract

The present invention relates to a microemulsion comprising an oil phase, an aqueous phase, a surfactant, and a hair modification active. The microemulsion is suitable for being impregnated therein or deposited thereon a substrate.

Description

technical field [0001] The present invention relates to microemulsions comprising hair modification actives. The invention also relates to a composite comprising said microemulsion and a shaving device comprising said microemulsion. Background technique [0002] Various methods are known to remove hair from the surface of the skin. For example, hair may be removed from the skin using a depilatory composition. Such compositions generally take the form of creams or lotions and contain depilatory actives which degrade the keratin proteins of the hair. [0003] In an alternative method, the hair is removed from the surface of the skin with a scraper. In a typical shaving method, a scraper is moved along the skin surface; hair on the skin surface is trimmed as it comes into contact with the scraper blades. Optionally, a shaving aid such as a shaving cream may be applied to the skin prior to shaving. [0004] While shaving provides an effective method of hair removal, hair tr...

Claims

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Application Information

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IPC IPC(8): A61K8/06A61Q9/02A61Q7/02A61Q9/04A61K8/46B26B21/44B26B19/14A61K8/02B26B19/40
CPCB26B21/44A61K8/068A61K8/447A61Q9/02A61Q9/04B26B19/40B26B21/443
Inventor 戴维·阿奇保罗·埃利斯特蕾西·黑森
Owner RECKITT BENCKISER (UK) LTD