Patent ID: 7781556

Claim:
A method of making a silicone based liquid crystal or vesicle comprising reacting: (A) an ≡Si—H containing polysiloxane (i) of the formula R 3 SiO(R′ 2 SiO) a (R″HSiO) b SiR 3 , (ii) of the formula HR 2 SiO(R′ 2 SiO) c SiR 2 H, or (iii) the formula HR 2 SiO(R′ 2 SiO) a (R″HSiO) b SiR 2 H, where in the formulas, R, R′, and R″, are alkyl groups with 1-6 carbon atoms; a is 0-250; b is 1-50; and c is 0-250; and (B) a mono-alkenyl polyether of the formula CH 2 ═CH(CH 2 ) x O(CH 2 CH 2 O) y [CH 2 CH(CH 3 )O] z R, in which R represents hydrogen or an alkyl group containing 1-10 carbon atoms; x is 1-6; y is zero or has a value of 4-100; z is zero or has a value of 4-100; provided y or z are both not zero; in the presence of a platinum catalyst until an ≡Si—H containing polysiloxane with polyether groups is formed; and then reacting: (C) the ≡Si—H containing polysiloxane with polyether groups; (D) an unsaturated hydrocarbon selected from the group consisting of α,ω-dienes having the formula CH 2 ═CH(CH 2 ) x CH═CH 2 where x is 1-20; α,ω-diynes of the formula CH≡C(CH 2 ) x ≡CH where x is 1-20; and α,ω-ene-ynes of the formula CH 2 ═CH(CH 2 ) x ≡CH where x is 1-20; and (E) water; in the presence of a platinum catalyst until a silicone based liquid crystal or vesicle is formed.