Silicone organic elastomer gels from organopolysiloxane resins

• US 8,541,011 B2
• Filed: 06/05/2012
• Issued: 09/24/2013
• Est. Priority Date: 09/26/2007
• Status: Expired due to Fees

• Current Assignee: Dow Silicones Corporation (Dow, Inc.)
• Original Assignee: Dow Corning Corporation (Dow, Inc.)
• Inventors: Lin, Shaow Burn, Stark-Kasley, Lori Ann
• Primary Examiner(s): MOORE, MARGARET G
• Application Number:
  US13/489,024
• Publication Number:
  US 20120258057A1
• Time in Patent Office: 476 Days
• Field of Search: 424/401, 524/588, 528/15, 528/31
• US Class Current: 424/401
• 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 MQ resin comprising the formula

(Me₂HSiO_1/2)_a(Me₃SiO_1/2)_b(SiO_4/2)_e

where

a is greater than 0

b is from 0 to 0.8

e is 0 to 0.9,

 

with the provisos that the sum of a, b, and e is at least 0.95 and e is greater than 0,

Me is methyl,

B) an organic compound having at least two aliphatic unsaturated groups in its molecule selected from

H₂C═

CHCH₂O[C₃H₆O]_gCH₂CH═

CH₂,

H₂C═

CHO[C₃H₆O]_gCH═

CH₂,

HC≡

CCH₃O[C₃H₆O]_gCH₂C≡

CH₂

HC≡

CC(CH₃)₂O[C₃H₆O]_gC(CH₃)₂C≡

CH, or

H₂C═

C(CH₃)CH₂O[C₃H₆O]_gCH₂C(CH₃)═

CH₂,

where g is greater than 2,

and

C) a hydrosilylation catalyst,

and;

D) a carrier fluid selected from 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.