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Sunscreen and personal care compositions comprising a random terpolymer

A technology of terpolymer and composition, which is applied in the directions of skin care preparations, cosmetics, cosmetic preparations, etc., can solve problems such as incomplete satisfaction and user discomfort

Inactive Publication Date: 2011-09-14
BASF AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as indicated above, such compositions are still not entirely satisfactory, since they produce a greasy feeling after application, which is particularly unpleasant for the user

Method used

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  • Sunscreen and personal care compositions comprising a random terpolymer
  • Sunscreen and personal care compositions comprising a random terpolymer
  • Sunscreen and personal care compositions comprising a random terpolymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0393] Example 1 - Random Terpolymer

[0394] In a reaction flask fitted with a reflux condenser suitable for polymerization, dissolve 2.84 g of vinyl toluene, 4.55 g of isobutyl methacrylate, 7.36 g of acrylic acid in 9.86 g of xylene and 4.93 g of methoxypropyl acetate. - Ethylhexyl ester, 5.20 g of 2-hydroxyethyl methacrylate, 1.80 g of polyethylene glycol monomethacrylate with a molecular weight of about 400 and 0.44 g of di-tert-butyl peroxide. Polymerization is carried out at the boiling point of the mixture while stirring and introducing an inert gas. At the end of the polymerization, 9.79 g of isophorone diisocyanate was dissolved in 16.58 g of isobutyl acetate and 16.58 g of methoxypropyl acetate, and then washed with 3.60 g of polyethylene glycol monomethacrylate with a molecular weight of about 400 The ester and 4.51 g of 1-(3-aminopropyl)imidazole converted the remaining free NCO groups.

[0395] The solids content was then adjusted to 40% by weight with butyl ac...

Embodiment 2

[0397] Example 2 - Random Terpolymer

[0398] In a manner comparable to Example 1, 3.54 g of vinyl toluene, 5.69 g of isobornyl methacrylate, 9.20 g of 2-ethyl methacrylate dissolved in 11.94 g of xylene and 5.97 g of methoxypropyl acetate Hexyl ester, 7.15 grams of hydroxyethyl methacrylate and 1.28 grams of di-tert-butyl peroxide were polymerized.

[0399] Subsequently, 12.23 g of isophorone diisocyanate were dissolved in 20.36 g of butyl acetate and 20.36 g of methoxypropyl acetate were added. The remaining free NCO groups were then converted with 4.50 g of polyethylene glycol monomethacrylate having a molecular weight of about 400 and 3.78 g of 3-amino-1,2,4-triazole in 11.34 g of N-methylpyrrolidone.

[0400] The solids content was then adjusted to 40% by weight with butyl acetate.

[0401] According to formula (I), component M is vinyltoluene and y is 7.7% by weight of the total weight of the terpolymer; component T is a mixture of isobornyl methacrylate and 2-ethylh...

Embodiment 3

[0402] Example 3 - Random Terpolymer

[0403] In the manner described in Example 1, 6.66 g of isobornyl methacrylate, 5.46 g of methacrylic Cyclohexyl ester, 6.40 grams of n-butyl acrylate and 7.85 grams of 2-hydroxyethyl methacrylate were polymerized. To this hydroxyl-containing polymer was added 12.23 g of isophorone diisocyanate dissolved in 20.4 g of butyl acetate and 20.40 g of methoxypropyl acetate. The free NCO groups were then converted with 4.50 g of polyethylene glycol monomethacrylate and 5.54 g of 2-(2-pyridyl)-ethanol.

[0404] The solids content was then adjusted to 40% by weight with xylene.

[0405] According to formula (I), component T is a mixture of isobornyl methacrylate and cyclohexyl methacrylate and v is 24.9% by weight of the total weight of the terpolymer; component D is polyethylene glycol monomethacrylate Component E is a mixture of 2-hydroxyethyl methacrylate and butyl acrylate and z is 29.3% by weight of the total weight of the terpolymer ; C...

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Abstract

Topically applicable, water-resistant cosmetic or dermatological compositions well suited for the UV-photoprotection of human skin and / or hair comprising an effective UV-photoprotecting amount of: (a) at least one UV screening agent from various classes and particularly effect mixtures thereof; and, (b) at least one random terpolymer; and, optionally, (c) other cosmetically acceptable ingredients. The various classes of UV-protecting compounds or UV sunscreens of special interest are selected from the groups b1 sparingly soluble micronized organic UV absorber, b2 Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, b3 at least one oil soluble organic UV absorber,b4 at least one inorganic UV absorber and b5 at least one water soluble UV absorber further defined herein. The present invention also relates to personal care compositions comprising at least one random terpolymer and other cosmetically acceptable ingredients.

Description

[0001] This application claims the benefit of US Provisional Application No. 61 / 196,412, filed October 17, 2008. field of invention [0002] The present invention relates to a topically administrable water-resistant cosmetic or dermatological composition well suited for UV protection of human skin and / or hair comprising a UV protection effective amount of: (a) at least one species from different species and (b) at least one random terpolymer; and optionally, (c) other cosmetically acceptable ingredients. The different classes of UV protective compounds or UV sunscreens of interest are selected from b further defined below 1 Slightly soluble micronized organic UV absorber, b 2 Bis-ethylhexyloxyphenol methoxyphenyl triazine, b 3 At least one oil-soluble organic UV absorber, b 4 at least one inorganic UV absorber and b 5 Water soluble UV absorber. Background of the invention [0003] Sunscreen compositions are applied to the skin to protect the skin from the sun's ultravio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/29A61K8/49A61K8/81A61Q17/04
CPCA61K8/817A61K8/8152A61K8/496A61K8/494A61K8/8182A61K8/4966A61Q17/04A61K8/29A61K8/91A61K8/90A61K8/49
Inventor O·V·迪瓦-科加诺夫B·S·杰恩斯J·A·卢皮亚M·范德斯卢易斯M·苏尔梅杰尔D·诺明顿M·施尼德尔J·格吕默拉德M·索恩A·T·特玛登
Owner BASF AG
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