Polyvinyl alcohols and polyvinyl acetals containing silane

Details Polyvinyl alcohols and polyvinyl acetals containing silane Polyvinyl alcohols and polyvinyl acetals containing silane

2008-05-06

2008-05-06

Egwim, Kelechi C. (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S315000, C526S330000

Reexamination Certificate

active

07368515

ABSTRACT:
The invention relates to polyvinyl alcohols and polyvinyl acetals which contain silane and can be obtained by means of a) radical polymerization of at least one vinyl ester of unbranched or branched alkyl carboxylic acids comprising between 1 and 18 C atoms, in the presence of aldehydes containing silane or the hemiacetals or full acetals thereof, b) saponification of the vinyl ester polymers obtained thereby, and optionally c) acetalation of the partially saponified or fully saponified vinyl ester polymers.

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