Patent ID: 8864930

Claim:
An addition-curable composition comprising: (a) an alkenyl-terminated perfluoroether; and (b) a hydrosilane-terminated extended perfluoroether, wherein the hydrosilane-terminated extended perfluoroether comprises a compound having the structure of Formula (9); A-CH 2 —CH 2 -PFE-CH 2 —CH 2 -A′-CH 2 —CH 2 -PFE-CH 2 —CH 2 -A (9) wherein: each A- is independently selected from a moiety of Formula (2c): wherein: each R 1 is independently selected from C 1-4 alkyl, C 5-6 cycloalkyl, phenyl, and —O—Si(R 2 ) 3-m (H) m , wherein each R 2 is independently C 1-4 alkyl; and m is selected from 0, 1, and 2; and n is an integer from 1 to 6; -A′- comprises a moiety of Formula (2b): wherein: each R 1 is independently selected from C 1-4 alkyl, C 5-6 cycloalkyl, phenyl, and —O—Si(R 2 ) 3-m (H) m , wherein each R 2 is independently C 1-4 alkyl; and m is selected from 0, 1, and 2; and n is an integer from 1 to 6; and —CH 2 —CH 2 -PFE-CH 2 —CH 2 — is derived from an alkenyl-terminated perfluoroether CH 2 ═CH 2 -PFE-CH 2 ═CH 2 wherein -PFE- comprises perfluoroether groups.