Poly(vinyl alcohol) copolymer sizes having high capacity to...

D - Textiles – Paper – 06 – M

Patent

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D06M 15/333 (2006.01) D06L 1/14 (2006.01) D06M 11/38 (2006.01) D06M 15/263 (2006.01)

Patent

CA 2181235

Certain, specifically useful poly(vinyl alcohol) copolymer sizes and sizes based on blends of those copolymers with known size polymers are described. The sizes are useful in the process of producing woven materials, since they are excellent sizes and are uniquely adaptable to a desizing process which uses caustic solutions. The sizes are very readily desizable, even when the woven textile fabrics have been heat treated. These readily desizable sizes are based on copolymers having a high level of acrylic ester comonomer.

L'invention concerne certaines colles spécifiquement utiles constituées de copolymères à l'alcool polyvinylique ainsi que des colles à base de mélanges de ces copolymères avec des polymères de colles connues. Les colles sont utiles dans le procédé de production de matières tissées, du fait qu'elles constituent d'excellentes colles et sont particulièrement adaptables à un traitement de désencollage utilisant des solutions caustiques. Les colles sont facilement désencollables, même lorsque les tissus textiles tissés ont été traités à chaud. Lesdites colles facilement désencollables sont à base de copolymères présentant un niveau élevé de comonomère d'ester acrylique.

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