Resin composition for making wet and dry strength paper

Details Resin composition for making wet and dry strength paper Resin composition for making wet and dry strength paper

C - Chemistry, Metallurgy

08

L

C08L 79/02 (2006.01) C08F 8/00 (2006.01) C08G 73/02 (2006.01) C08L 39/02 (2006.01) C08L 77/00 (2006.01) D21H 17/55 (2006.01) D21H 21/14 (2006.01) D21H 21/18 (2006.01) D21H 21/20 (2006.01) D21H 25/00 (2006.01) D21H 27/40 (2006.01) D21H 17/54 (2006.01)

Patent

CA 2262536

Disclosed are resin compositions that are the reaction product of epihalohydrin with a mixture of polyaminoamide and vinyl amine polymer containing a minimum of about 1 mole % vinyl amine monomer units, wherein said polyaminoamide comprises the reaction product of dicarboxylic acid, or a derivative thereof, with polyamine selected from the group consisting of methyl bis(3-aminopropyl) amine and polyalkylenepolyamine containing from two to four alkylene groups having two to four carbons, two primary amine groups, and one to three secondary amine groups. Also disclosed are a process for creping fibrous webs utilizing the resin compositions, and creped paper prepared by the process. Also disclosed is wet and dry stength paper containing the resin compositions and processes for creping fibrous webs utilizing the resin compositions as creping adhesives.

Cette invention se rapporte à des compositions de résine qui sont le produit de réaction d'épihalohydrine et d'un mélange de polyaminoamide et de polymère de vinyl-amine contenant un minimum d'environ 1 mole % d'unités monomères de vinyl-amine, ledit polyaminoamide comprenant le produit de réaction de l'acide dicarboxylique, ou un dérivé de cet acide, et d'une polyamine sélectionnée dans le groupe constitué par la méthyl-bis(3-aminopropyl)amine et la polyalkylènepolyamine contenant deux à quatre groupes alkylène comportant deux à quatre atomes de carbone, deux groupes amine primaires et un à trois groupes amine secondaires. L'invention se rapporte également à un procédé de crêpage de nappes fibreuses faisant usage de telles compositions de résines et au papier crêpé préparé selon ce procédé. Enfin, l'invention se rapporte à du papier doté d'une résistance à l'état humide et à l'état sec contenant ces compositions de résine et à des procédés de crêpage de nappes fibreuses utilisant lesdites compositions de résine en tant qu'adhésifs de crêpage.

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