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Cosmetic compositions containing at least one surfactant and at least one ethylene copolymer with polyethylene glycol grafts

A kind of cosmetic composition, surfactant technology, applied in the field of olefin copolymer composition, to achieve the effect of excellent hair shaping

Inactive Publication Date: 2007-06-13
LOREAL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The drawback of these polymers is having a high molecular weight poly(alkylene glycol) based center block which gives the polymer a high degree of crystallinity leading to opaque and / or greasy properties

Method used

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  • Cosmetic compositions containing at least one surfactant and at least one ethylene copolymer with polyethylene glycol grafts
  • Cosmetic compositions containing at least one surfactant and at least one ethylene copolymer with polyethylene glycol grafts
  • Cosmetic compositions containing at least one surfactant and at least one ethylene copolymer with polyethylene glycol grafts

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0435] 75 ml of methyl ethyl ketone (MEK) was put into a reactor (four-necked flask) equipped with two addition funnels, a condenser and a mechanical stirrer, and heated to 80°C.

[0436] Meanwhile, solution 1 including monomer: 50 g of polyethylene glycol methacrylate (MPEG550), 50 g of dimethylaminopropylmethacrylamide (DMAPMA) and initiator: 0.5 g of (Trigonox 21S) was prepared. Solution 2 was also prepared, comprising 75 ml of methyl ethyl ketone and 0.5 g of initiator (Trigonox 21S).

[0437] Solution 1 was dropped into the four-necked flask reactor over 1 hour, and Solution 2 was dropped over 2 hours. The resulting mixture was then kept at 80°C for 5 hours. The obtained orange-yellow solution was cooled. 95 g of polymer are obtained.

[0438] The polymer has a Brookfield viscosity of 7.5 mPa.s as measured at 25°C in a 15% solution of the polymer in MEK using a No. 1 needle mandrel at a speed of 0.1 rpm.

[0439] The polymer can then be neutralized as follows: 290 ml ...

preparation Embodiment 2

[0443] 100 ml of water was put into a reactor (four-necked flask) equipped with two addition funnels, a condenser and a mechanical stirrer, and heated to 80°C.

[0444] Simultaneously, a solution 1 comprising 50 g of monomeric MPEG550, 1 g of initiator (potassium persulfate KPS) and 50 ml of water was prepared.

[0445] Solution 2 comprising 50 g of monomeric DMAPMA 100% neutralized with betaine hydrochloride and 50 g of water was also prepared.

[0446] Solutions 1 and 2 were dropped into a four-necked flask over 1 hour. After 1 hour at 80°C, a mixture of 1 g of KPS in 50 ml of water was added dropwise over 15 minutes.

[0447] The resulting mixture was then kept at 80°C for 3 hours. 90 g of polymer neutralized with betaine hydrochloride are obtained.

[0448] The polymer has a Brookfield viscosity of 164 mPa.s, measured at 25°C in a 15% aqueous solution of the polymer at a speed of 6 rpm using a No. 1 needle mandrel.

[0449] The polymer is soluble in water (up to at least...

preparation Embodiment 3-17

[0453] According to the method (solvent method) of embodiment 1 or the method (water method) of embodiment 2

[0454] The following polymers according to the invention or comparative examples were prepared.

[0455] Example

Monomer

method and neutralization

Solubility

Example 3

10% MPEG550

90% DMAPMA

method 1

HCl

water

Example 4

25% MPEG1100

75% DMAPMA

method 1

HCl

water

Example 5

50%MPEG1100

50% DMAPMA

method 1

HCl

water

Example 6

50%MPEG550

50% DMAPMA

method 1

HCl

water

Example 7

50%MPEG550

50% SPE

Method 2

not neutral

water

Example 8

50%MPEG550

50% DMAEMA

method 1

HCl

water

Example 9

50%MPEG550

50% methacrylic acid

Pheninoethyl ester

method 1

HCl

water

Example 10

50%MPEG2000

50% DMAPMA

Me...

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Abstract

The invention concerns cosmetic compositions comprising: A) at least one anionic surfactant and at least one nonionic surfactant, and B) at least one ethylene copolymer comprising, in weight percentage based on the total weight of the polymer: a) 10-60 wt. % of one or more monomers of formula (I) as defined below, b) 40-90 wt. % of at least one substantially cationic monomer selected among: (i) one or more cationic monomers of formula (IIa), (ii) one or more amphoteric monomers of formulae (IIc) and (IId), and (iii) a mixture of one or more cationic monomers of formula (IIa) with one or more anionic monomers selected among maleic anhydride and / or those of formula (IIb); and / or with one or more amphoteric monomers selected among those of formulae (IIc) and (IId), and c) optionally 0-50 wt. % of nonionic hydrophilic monomers, excluding methyl acrylate, methyl methacrylate and isopropyl acrylate if they are present in an amount not less than 10 wt. %. Hair treated with said compositions are more easily disentangled during rinsing, and exhibits softness after drying. The inventive compositions also allow particularly interesting hair brushing after drying.

Description

technical field [0001] The present invention relates to compositions comprising at least one surfactant and at least one olefin copolymer having polyethylene glycol grafted. Background technique [0002] It is known practice to use polymers in cosmetics, especially in hair care products of the leave-on type, for example to obtain hair hold and hold properties. [0003] In the field of "rinse-off" compositions such as shampoos or hair conditioners, water-soluble synthetic cationic polymers are also used, which are known to provide good cosmetic properties to the hair; however, these polymers do not provide hair styling benefits . The same is true for cationic polymers of natural origin, such as modified guar gums, which also provide cosmetic properties but not molding. In the field of rinse-off compositions, polymers do not provide sufficient styling properties in relation to acceptable cosmetic properties. [0004] It is an object of the present invention to provide cosme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/81A61Q5/02A61Q5/12A61Q5/06
CPCA61Q5/06A61K8/8152A61K8/8182A61K8/8158A61Q5/02A61Q5/12
Inventor H·萨马因L·保罗G·杰高
Owner LOREAL SA
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