Silsesquioxane resin wax
View Patent ↗A silsesquioxane resin wax composition, method for its preparation, and use in personal, household, automotive and medical care compositions are disclosed. The silsesquioxane resin wax can also find utility in a variety of oil and gas field applications, such as for crude oil wax control.
1. A silsesquioxane resin wax comprising at least 40 mole % of siloxy units having the formula (R 2 R′SiO 1/2 ) x (R″SiO 3/2 ) y , where x and y have a value of 0.05 to 0.95 and a certain y/x ratio, R is an alkyl group having from 1 to 8 carbon atoms, an aryl group, a carbinol group, or an amino group, R′ is a monovalent hydrocarbon having 18-40 carbon atoms, and R″ is a monovalent hydrocarbon group having 1 to 8 carbon atoms or an aryl group, provided R′ and the y/x ratio are selected such that the silsesquioxane wax has a melting point greater than 30° C.
2. The composition of claim 1 wherein the silsesquioxane resin wax comprises the units:
(i) (R 1 3 SiO 1/2 ) a
(ii) (R 2 2 SiO 2/2 ) b
(iii) (R 3 SiO 3/2 ) c ,
(iv) (SiO 4/2 ) d ,
(v) (R 2 R′SiO 1/2 ) x and
(vi) (R″SiO 3/2 ) y ,
wherein
R, R 1 , R 2 , and R 3 are independently an alkyl group having from 1 to 8 carbon atoms, an aryl group, a carbinol group, or an amino group,
R′ is a monovalent hydrocarbon having 9-40 carbon atoms,
R″ is a monovalent hydrocarbon group having 1 to 8 carbon atoms or an aryl group
a, b, c, and d have value of zero to 0.4,
x and y have a value of 0.05 to 0.95,
with the provisos that the value of x+y is equal to or greater than 0.40,
and the value of a+b+c+d+x+y=1.
3. The silsesquioxane resin wax of claim 1 further comprising;
(C) a carrier selected from a volatile siloxane or organic solvent.
4. A personal care product comprising the silsesquioxane resin wax of claim 1 .
5. The personal care product of claim 4 , where the personal care product is a moisturizing cream or lotion.
6. A household care product comprising the silsesquioxane resin wax of claim 1 .
7. A crude oil wax control product comprising the silsesquioxane resin wax of claim 1 .
8. An automotive care product comprising the silsesquioxane resin wax of claim 1 .
9. A process for preparing a silsesquioxane resin wax comprising reacting;
A) a SiH containing alkyl silsesquioxane resin comprising siloxy units of the formula (R 2 HSiO 1/2 ) x (R″SiO 3/2 ) y , where R is an alkyl group having from 1 to 8 carbon atoms, an aryl group, a carbinol group, or an amino group, R″ is a monovalent hydrocarbon group having 1 to 8 carbon atoms or an aryl group, x and y have a value of 0.05 to 0.95 and a certain ratio, with the provisos that the value of x+y in the SiH containing alkyl, silsesquioxane resin is equal to or greater than 0.40,
B) a C 18 -C 40 vinyl terminated hydrocarbon,
C) a hydrosilylation catalyst, and optionally
D) a solvent,
provided the C 18 -C 40 vinyl terminated hydrocarbon and the y/x ratio are selected such that the silsesquioxane wax has a melting point greater than 30° C.
10. A personal care product comprising the silsesquioxane resin wax of claim 3 .
11. A household care product comprising the silsesquioxane resin wax of claim 3 .
12. A crude oil wax control product comprising the silsesquioxane resin wax of claim 3 .
13. An automotive care product comprising the silsesquioxane resin wax of claim 3 .