Silicone organic elastomer gels from organopolysiloxane resins
View Patent ↗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.
1. A gel composition comprising:
a silicone elastomer from the reaction of;
A) an SiH containing organopolysiloxane silsesquioxane resin comprising the formula;
(Me 2 HSiO 1/2 ) a (Me 2 SiO 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 H 2 C═CHCH 2 [C 3 H 6 O] g CH 2 CH═CH 2 , or H 2 C═C(CH 3 )CH 2 [C 3 H 6 O] g CH 2 C(CH 3 )═CH 2 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 .