Water soluble silated polyvinyl alcohol

Details Water soluble silated polyvinyl alcohol Water soluble silated polyvinyl alcohol

1989-09-25

1991-02-05

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C08F 800

Patent

active

049905635

ABSTRACT:
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.

REFERENCES:
patent: 3959242 (1976-05-01), Watts et al.
patent: 4016129 (1977-04-01), Miyosawa
patent: 4097436 (1978-06-01), Buning et al.
patent: 4219591 (1980-08-01), Buning et al.
patent: 4425403 (1984-01-01), Taniguchi et al.
patent: 4480072 (1984-10-01), Mallon
patent: 4489117 (1984-12-01), Ono et al.
patent: 4567221 (1986-01-01), Maruyama et al.

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