IP Library Granted Patent US 8,541,011
Granted Patent B2
US 8,541,011 · App. 13/489,024 · Granted Sep 24, 2013

Silicone organic elastomer gels from organopolysiloxane resins

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Quick Facts
Patent No.
US 8,541,011
App. No.
13/489,024
Granted
Sep 24, 2013
Kind
B2
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 (26)

1. A gel composition comprising:

a silicone elastomer from the reaction of;

A) an SiH containing MQ resin comprising the formula

(Me 2 HSiO 1/2 ) a (Me 3 SiO 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

H 2 C═CHCH 2 O[C 3 H 6 O] g CH 2 CH═CH 2 ,

H 2 C═CHO[C 3 H 6 O] g CH═CH 2 ,

HC≡CCH 3 O[C 3 H 6 O] g CH 2 C≡CH 2

HC≡CC(CH 3 ) 2 O[C 3 H 6 O] g C(CH 3 ) 2 C≡CH, or

H 2 C═C(CH 3 )CH 2 O[C 3 H 6 O] g CH 2 C(CH 3 )═CH 2 ,

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.

Assignments (1)
CHANGE OF NAME Recorded Feb 27, 2018
From: DOW CORNING CORPORATION
To: DOW SILICONES CORPORATION
Reel/Frame 045460/0278 →