Michael addition adducts as additives for paper and papermaking

Details Michael addition adducts as additives for paper and papermaking Michael addition adducts as additives for paper and papermaking

D - Textiles, Paper

21

H

D21H 21/20 (2006.01) D21H 17/52 (2006.01)

Patent

CA 2652242

Several Michael addition adducts of vinylamines with .alpha.,.beta..-unsaturated alkyl carbonyl compounds including amides, esters and acids, particularly acrylamide are presented. Additionally, a process for producing these Michael addition adducts is described. These adducts are generally useful in the manufacture of paper and are particularly useful as dry strength additives to make paperboard products using a papermaking machine.

La présente invention concerne plusieurs produits d'addition de Michael de vinylamines avec des composés carbonyles alkylés .alpha.,.beta. insaturés comprenant des amides, esters et acides, notamment d'acrylamide. L'invention concerne également un procédé de production de ces produits d'addition de Michael. Ces produits sont généralement utiles dans la fabrication du papier et sont particulièrement utiles en tant qu'additifs de résistance à sec pour fabriquer des produits en carton au moyen d'une machine de fabrication de papier.

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