| abstract |
A polythioether is provided of the formula n wherein R 1 is H, C 1-6 alkyl, C 1-6 alkyl alcohol, C 1-6 alkyl substituted with at least one of: n —NHR 5 wherein R 5 is a C 1-6 alkyl, R 2 is C 2-6 alkyl, C 6-8 cycloalkyl, C 6-10 alkylcycloalkyl, —[—(CH 2 ) r —Q—] s —(CH 2 ) t —, or C 1-2 alkyl substituted forms thereof, wherein r is an integer value from 2 to 8, Q is a heteroatom selected from the group consisting of: O, S, —NH— and —NCH 3 —, s is an integer value from 1 to 5, and t is an integer value from 2 to 10, R 3 is H or C 1-4 alkyl, R 4 is —CH 2 — or R 2 , M is a C 1-10 alkyl, C 6-20 aryl, C 6-20 aryl substituted with at least one C 1-8 alkyl group, or a N or O heteroatom, Y is C 2-20 alkyl, C 6-20 cycloalkyl, C 6-10 alkylcycloalkyl, or —[—(CH 2 ) r —Q—] s (—CH 2 —) t —, n is an integer value from 1 to 60, m is an integer value from 1 to 60, and p is an integer value from 1 to 10, wherein the polythioether has a viscosity at 20° C. of less than 1000 poise. |