Organopolysiloxane waterproofing treatment for porous ceramics

Details Organopolysiloxane waterproofing treatment for porous ceramics Organopolysiloxane waterproofing treatment for porous ceramics

1996-10-30

1998-06-16

Bonner, Melissa

Compositions: coating or plastic

Coating or plastic compositions

Coating repellent

10628712, 427387, 418447, 418668, C09D 400, B32B 904

Patent

active

057663220

ABSTRACT:
Rigid and flexible porous ceramics, including thermal insulation of a type used on space vehicles, are waterproofed by a treatment which comprises applying an aqueous solution of an organopolysiloxane waterproofing agent having reactive silanol groups to the surface of the ceramic and then heating the treated ceramic to form a waterproofed ceramic. The organopolysiloxane is formed by the hydrolysis and partial condensation of di- and trialkoxyfunctional alkylalkoxysilanes having 1-10 carbon atom hydrocarbyl groups.

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