Binder mixtures for paper-coating materials

Details Binder mixtures for paper-coating materials Binder mixtures for paper-coating materials

D - Textiles, Paper

21

H

D21H 19/20 (2006.01) C08F 257/02 (2006.01) C08F 265/04 (2006.01) C08F 265/06 (2006.01) C09J 151/00 (2006.01) D21H 17/34 (2006.01) D21H 19/58 (2006.01)

Patent

CA 2182405

Binders for paper-coating materials permitting even printing, containing a polymer produced by seeding from 1 to 49 wt % of a polymer seed (A) with a glass transition temperature of -80 to +25 °C based on esters of acrylic acid or (meth)acrylic acid, and 51 to 99 wt % of ethylenically unsaturated monomers (B), in which there is 10 to 100 wt % of butadiene. The polymer seed (A) is added before or during the polymerisation of the ethylenically unsaturated monomers.

L'invention concerne des liants pour matières utilisées dans le couchage de papier, qui permettent une impression régulière et contiennent un polymère obtenu par germination constitué, d'entre 1 à 49 % en poids d'un germe polymère (A) ayant une température de transition vitreuse comprise entre -80 et +25 ~C, à base d'esters d'acide acrylique ou d'acide (méth)acrylique, et d'entre 51 à 99 % en poids de monomères (B) insaturés éthyléniquement, qui comportent entre 10 et 100 % en poids de butadiène. Le germe polymère (A) est ajouté avant ou pendant la polymérisation aux monomères éthyléniquement insaturés .

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