Water soluble silated polyvinyl alcohol

Details Water soluble silated polyvinyl alcohol Water soluble silated polyvinyl alcohol

C - Chemistry, Metallurgy

08

F

402/12, 402/497

C08F 16/06 (2006.01) C08F 8/42 (2006.01) C08G 77/18 (2006.01)

Patent

CA 2021347

PATENT SAU 3 WATER SOLUBLE SILATED POLYVINYL ALCOHOL Abstract of the Disclosure A silated polyvinyl alcohol with a degree of substitution (D.S.) between 0.005 and 0.5 is prepared by reacting polyvinyl alcohol with a silating agent. Preferred silating agents are 3-glycidoxypropyltrimethoxysilane or vinyltrimethoxysilane. An alkali metal or ammonium salt of the silated polyvinyl alcohol can self-crosslink in the presence of atmospheric carbon dioxide to form a water resistant film which is soluble in caustic.

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