Condensation curable poly(fluoroorgano)siloxane-poly(silarylene)siloxane
block copolymer compositions having a glass transition temperature not
exceeding about -54.degree. C. and excellent solvent resistance have been
found useful as sealants. Polyalkoxysilylorgano compounds, such as
1,4-bis[trimethoxysilyl(ethyl)]benzene have been found to be effective as
cross-linkers.
Composiciones curables del copolímero del bloque del poly(fluoroorgano)siloxane-poly(silarylene)siloxane de la condensación que tienen una temperatura de transición de cristal el no excederse sobre -54.degree. La C. y la resistencia solvente excelente se han encontrado útil como sellantes. Los compuestos de Polyalkoxysilylorgano, tales como 1,4-bis[trimethoxysilyl(ethyl)]benzene se han encontrado para ser eficaces como cross-linkers.
