Patent ID: 8962746
Filing Date: 2015-02-24
Classification: C08G,C08K,C08L

Abstract:
1. A method of forming a blocked-mercapto alkoxy-modified silsesquioxane comprising combining: a. one or more compounds selected from the group consisting of alkoxy-modified silsesauioxanes having the formula I b. a compound having the formula II c. an acid scavenger, wherein w, x, y and z represent mole fractions, z does not equal zero, w, x, or y but not all can be zero, and w+x+y+z=1.00; wherein R 1 , R 2 , R 3 and R 4 are the same or different and selected from the group consisting of (i) H or alkyl groups having one to about 20 carbon atoms, (ii) cycloalkyl groups having 3 to about 20 carbon atoms, (iii) alkylaryl groups having 7 to about 20 carbon atoms, and (iv) R 6 X 1 , and (v) R 6 X 1 R 7 Z; wherein X 1 is selected from the group consisting of Cl, Br, SH, S a R 8 , NR 8 2 , OR 8 , CO 2 H, SCOR 8 , CO 2 R 8 , OH, olefins, epoxides, amino groups, vinyl groups, acrylates and methacrylates; wherein at least one of R 1 , R 2 , R 3 and R 4 is R 6 SH; wherein a =1 to about 8; Z is independently selected from NH, NR 8 , 0, and S; R 6 is selected from the group consisting of alkylene groups having one to about 20 carbon atoms, and cycloalkylene groups having 3 to about 20 carbon atoms, and a single bond; R 5 and R 8 are independently selected from the group consisting of alkyl groups having one to about 20 carbon atoms, cycloalkyl groups having 3 to about 20 carbon atoms, and alkylaryl groups having 7 to about 20 carbon atoms; R 7 is selected from alkyl groups having one to about 6 carbon atoms; R 9 is selected from the group consisting of alkyl groups having one to about 20 carbon atoms, cycloalkyl groups having 3 to about 20 carbon atoms, alkylaryl groups having 7 to about 20 carbon atoms, and OR 8 ; and X 2 is selected from the group consisting of CO 2 R 8 and halogen.