Transparent solid composition

Patent metadata

Field	Value
Publication number	US-11123269-B2
Application number	US-201716320507-A
Country	US
Kind code	B2
Filing date	Aug 7, 2017
Priority date	Aug 8, 2016
Publication date	Sep 21, 2021
Grant date	Sep 21, 2021

Abstract

To provide a transparent solid composition having a high ultraviolet ray blocking effect, as well as superior moldability and stability. A transparent solid composition includes: (a) 12-hydroxystearic acid in an amount within a range from 1 to 15% by mass; (b) an oil having a refractive index within a range from 1.5 to 1.7; (c) an oil having a refractive index of 1.3 or greater and less than 1.5; and (d) one type or two or more types of an ultraviolet ray absorbing agent in an amount within a range from 5 to 50% by mass. The refractive index of the transparent solid composition is within a range from 1.47 to 1.55.

First claim

The invention claimed is:

1. A transparent solid composition, comprising
(a) 12-hydroxystearic acid in an amount within a range from 1 to 15% by mass;
(b) an oil having a refractive index within a range from 1.5 to 1.7 in an amount within a range from 3.1 to 54.5% by mass;
(c) an oil having a refractive index of 1.3 or greater and less than 1.5 in an amount within a range from 5 to 63.4% by mass; and
(d) one type or two or more types of an ultraviolet ray absorbing agent in an amount within a range from 5 to 50% by mass;
the refractive index of the transparent solid composition being within a range from 1.47 to 1.55.

2. A transparent solid composition as defined in claim 1 , wherein:
the ultraviolet ray absorbing agent is selected from the group consisting of t-butyl methoxy dibenzoyl methane, ethylhexyl methoxy cinnamate, homomentyl salicylate (homosalate), octyl salicylate, octocrylene, 2-hydroxy 4-methoxybenzophenone, hexyl diethyl amino hydroxybenzoyl benzoate, bis ethylhexyl oxyphenol methoxy phenyl triazine, and 2, 4, 6-trianilino-p-(carbo-2′-ethylhexyl-1′-oxy)-1, 3, 5-triazine.

3. A transparent solid composition as defined in claim 1 , further comprising:
a powder having a refractive index within a range from 1.45 to 1.55.

4. A transparent solid composition as defined in claim 1 , wherein:
the (c) oil having a refractive index of 1.3 or greater and less than 1.5 includes a volatile oil.

5. A transparent solid composition as defined in claim 4 , wherein
the (c) oil having a refractive index of 1.3 or greater and less than 1.5 includes a hydrocarbon series volatile oil.

6. A transparent solid composition as defined in claim 1 , wherein:
the transparent solid composition is in the form of a stick.

7. A transparent solid cosmetic comprising a transparent solid composition as defined in claim 1 as a base material.

8. A transparent solid oil composition as defined in claim 1 , further comprising:
an oil solidifying agent selected from the group consisting of dibutyl lauroyl glutamide, dibutyl ethylhexanoyl glutamide, polyamide-3, and polyamide-8.

9. A transparent solid composition as defined in claim 2 , further comprising:
a powder having a refractive index within a range from 1.45 to 1.55.

10. A transparent solid composition as defined in claim 2 , wherein:
the (c) oil having a refractive index of 1.3 or greater and less than 1.5 includes a volatile oil.

11. A transparent solid composition as defined in claim 3 , wherein:
the (c) oil having a refractive index of 1.3 or greater and less than 1.5 includes a volatile oil.

12. A transparent solid composition as defined in claim 4 , wherein
the (c) oil having a refractive index of 1.3 or greater and less than 1.5 includes a hydrocarbon series volatile oil.

13. A transparent solid composition as defined in claim 2 , wherein:
the transparent solid composition is in the form of a stick.

14. A transparent solid composition as defined in claim 3 , wherein:
the transparent solid composition is in the form of a stick.

15. A transparent solid composition as defined in claim 4 , wherein:
the transparent solid composition is in the form of a stick.

16. A transparent solid composition as defined in claim 5 , wherein:
the transparent solid composition is in the form of a stick.

17. A transparent solid oil composition as defined in claim 2 , further comprising:
an oil solidifying agent selected from the group consisting of dibutyl lauroyl glutamide, dibutyl ethylhexanoyl glutamide, polyamide-3, and polyamide-8.

18. A transparent solid oil composition as defined in claim 3 , further comprising:
an oil solidifying agent selected from the group consisting of dibutyl lauroyl glutamide, dibutyl ethylhexanoyl glutamide, polyamide-3, and polyamide-8.

19. A transparent solid oil composition as defined in claim 4 , further comprising:
an oil solidifying agent selected from the group consisting of dibutyl lauroyl glutamide, dibutyl ethylhexanoyl glutamide, polyamide-3, and polyamide-8.

20. A transparent solid oil composition as defined in claim 6 , further comprising:
an oil solidifying agent selected from the group consisting of dibutyl lauroyl glutamide, dibutyl ethylhexanoyl glutamide, polyamide-3, and polyamide-8.

Assignees

• Shiseido Co Ltd

Inventors

• Kubota Shun
• Gomi hiroki

Classifications

• A61Q17/04

  Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations · CPC title

• A61K8/361

  Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof · CPC title

• A61K8/31

  Hydrocarbons · CPC title

• A61K8/92

  Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof · CPC title

• A61K8/891

  saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone · CPC title