Silicone organic elastomer gels from organopolysiloxane resins

• US 8,222,363 B2
• Filed: 09/22/2008
• Issued: 07/17/2012
• Est. Priority Date: 09/26/2007
• Status: Expired due to Fees

• Current Assignee: Dow Silicones Corporation (Dow, Inc.)
• Original Assignee: Dow, Inc.
• Inventors: Lin, Shaow Burn, Stark-Kasley, Lori Ann
• Primary Examiner(s): MOORE, MARGARET G
• Application Number:
  US12/680,212
• Publication Number:
  US 20100247460A1
• Time in Patent Office: 1,394 Days
• Field of Search: 528/15, 528/31, 424/401, 424/70.121, 524/588, 524/268, 556/445
• US Class Current: 528/15
• CPC Class Codes: A61K 8/042 Gels
• CPC Class Codes: A61K 8/894 modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
• CPC Class Codes: A61P 31/04 Antibacterial agents
• CPC Class Codes: A61P 31/10 Antimycotics
• CPC Class Codes: A61Q 1/02 Preparations containing skin colorants, e.g. pigments preparations in powder form A61Q1/12
• CPC Class Codes: A61Q 1/06 Lipsticks
• CPC Class Codes: A61Q 15/00 Anti-perspirants or body deodorants deodorisation of air A61L9/00
• CPC Class Codes: A61Q 17/04 Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
• CPC Class Codes: A61Q 19/007 Preparations for dry skin
• CPC Class Codes: A61Q 19/08 Anti-ageing preparations
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations
• CPC Class Codes: A61Q 5/02 Preparations for cleaning the hair
• CPC Class Codes: A61Q 5/06 Preparations for styling the hair, e.g. by temporary shaping or colouring
• CPC Class Codes: A61Q 5/12 Preparations containing hair conditioners
• CPC Class Codes: C08L 83/12 containing polyether sequences

Abstract

Gel compositions are disclosed comprising a silicone elastomer from the reaction of an SiH containing organopolysiloxane resin and an organic compound having at least two aliphatic unsaturated groups in its molecule.

Claims

1. A gel composition comprising:

a silicone elastomer from the reaction of;

A) an SiH containing organopolysiloxane silsesquioxane resin comprising the formula;

(Me₂HSiO_1/2)_a(Me₂SiO_2/2)_c(R′

SiO_3/2)_d

where a is greater than 0, c is from 0 to 0.4, d is from 0 to .9, with the provisos that sum of a, c, and d, is at least 0.9 and d is greater than 0,

R ′

is a monovalent hydrocarbon group having 2 to 8 carbon atoms, and Me is methyl,

B) an organic compound having at least two aliphatic unsaturated groups and in its molecule of the formula H₂C═

CHCH₂[C₃H₆O]_gCH₂CH═

CH₂, or H₂C═

C(CH₃)CH₂[C₃H₆O]_gCH₂C(CH₃)═

CH₂ where g is eater than 2, and

C) a hydrosilylation catalyst, and;

D) carrier fluid selected from decamethylcyclopentasiloxane, isododecane, isohexyldecane, or isodecyl neopentanoate,

E) an optional personal or healthcare active, wherein the gel composition has a hardness of at least 0.03 Newton force.

2. The composition of claim 1 wherein the molar ratio of A)/B) is from 10/1 to 1/10.

3. The composition of claim 1 wherein E) is a personal care active selected from a vitamin, sunscreen, plant extract, or fragrance.

4. The composition of claim 1 wherein E) is a health care active selected from a topical drug active, protein, enzyme, antifugual, or antimicrobial agent.

5. A personal care composition selected from a color cosmetic, a lipstick, a foundation, a shampoo, a hair conditioner, a hair fixative, a shower gel, a skin moisturizer, a skin conditioner, a body conditioner, a sun protection product, an antiperspirant, and a deodorant, wherein the personal care composition contains the composition of claim 1.