Crosslinkable dispersion powders as binders for fibres

Details Crosslinkable dispersion powders as binders for fibres Crosslinkable dispersion powders as binders for fibres

D - Textiles, Paper

04

H

D04H 1/58 (2006.01) C04B 26/04 (2006.01) C04B 26/06 (2006.01) D04H 1/42 (2006.01) D06M 15/263 (2006.01) D06M 15/285 (2006.01) D06M 15/29 (2006.01) D06M 15/333 (2006.01) D06M 23/08 (2006.01)

Patent

CA 2161119

Cross-linkable, redispersible dispersion powders based on vinyl ester copolymers or (meth)acrylic acid ester copolymers are used as binders for dry-binding fibrous materials. The vinyl ester copolymers of one or several monomers from the group of the vinyl esters of branched or unbranched alkylcarboxylic acids with 1 to 15 C atoms, the (meth)acrylic acid ester copolymers of one or several monomers from the group of the methacrylic acid esters and acrylic acid esters of alcohols having 1 to 10 C atoms, and the vinyl ester or (meth)acrylic acid ester copolymers contain each 0.1 to 10 % by weight, in relation to the total weight of the copolymer, of one or several ethylenically unsaturated, cross-linking comonomers.

On utilise des poudres réticulables redispersibles de dispersion à base de copolymères d'ester de vinyle ou de copolymères d'ester d'acide (méth)acrylique comme liants, pour lier à sec des matériaux fibreux. Les copolymères d'ester de vinyle d'un ou plusieurs monomères du groupe des esters de vinyle d'acide alkylcarboxylique ramifié ou non ayant 1 à 15 atomes de carbone, les copolymères d'ester acide (méth)acrylique d'un ou plusieurs monomères du group des esters d'acide méthacrylique et des esters d'acide acrylique d'alcools ayant 1 à 10 atomes de carbone, et les copolymères d'ester de vinyle ou d'ester d'acide (méth)acrylique contiennent chacun 0,1 à 10 % en poids, par rapport au poids total du copolymère, d'un ou de plusieurs comonomères réticulants éthyléniquement insaturés.

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