Poly(vinyl alcohol) polymer blend textile sizes with...

Details Poly(vinyl alcohol) polymer blend textile sizes with... Poly(vinyl alcohol) polymer blend textile sizes with...

C - Chemistry, Metallurgy

08

L

C08L 29/04 (2006.01) D06L 1/14 (2006.01) D06M 15/263 (2006.01) D06M 15/333 (2006.01)

Patent

CA 2181239

Compositions based on blends of certain specified poly(vinyl alcohol) copolymers and other poly(vinyl alcohol) polymers are described which are useful as sizes, and have improved ability to be desized from fabrics compared with the poly(vinyl alcohol) polymers alone. The specific poly(vinyl alcohol) copolymers useful in the blends with other poly(vinyl alcohol) polymers are copolymers having a high level of acrylic ester comonomer. The blend sizes are useful in pouring woven materials since they are excellent sizes, and are uniquely adaptable to caustic desizing.

L'invention concerne des compositions à base de mélanges de certains copolymères spécifiés d'aclool polyvinylique et d'autres polymères d'alcool polyvinylique, lesquels sont utiles en tant que colles et présentent une aptitude supérieure au désencollage à partir des tissus, comparé à d'autres polymères d'alcool polyvinylique seuls. Les copolymères spécifiques d'alcool polyvinylique utiles dans les mélanges avec d'autres polymères d'alcool polyvinylique sont des copolymères présentant un niveau élevé de comonomères d'esters acryliques. Les colles des mélanges sont utiles dans la production de matières tissées puisqu'elles constituent d'excellentes colles, et elles sont notamment adaptables aux désencollage caustique.

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