Surface-mineralized organic fibers

Details Surface-mineralized organic fibers Surface-mineralized organic fibers

D - Textiles, Paper

21

H

D21H 17/67 (2006.01) C01F 11/18 (2006.01) C09C 1/02 (2006.01) D21H 17/52 (2006.01) D21H 17/55 (2006.01) D21H 17/69 (2006.01) D21H 19/38 (2006.01) D21H 19/44 (2006.01) D21H 19/62 (2006.01) D21H 21/52 (2006.01)

Patent

CA 2708618

The present invention relates to surface-mineralized organic fibers comprising organic fibers having a length in the millimeter range, the surface of which is at least partially coated with finely divided alkaline earth carbonate nanoparticles by means of binders based on copolymers comprising as monomers one or more dicarboxylic acids and one or more monomers from the group of diamines, triamines, dialkanolamines or trialkanolamines and epichlorohydrin, a method for producing such surface-mineralized organic fibers, aqueous slurries thereof, their use in papermaking, in surface finishing of paper, plastic, cement and clay surfaces, in paints and varnishes and the use of the inventive binders for coating the organic fibers with nano alkaline earth carbonates.

L'invention concerne des fibres organiques à surface minéralisée comprenant des fibres organiques dont la longueur est de l'ordre du millimètre. La surface de ces fibres est au moins partiellement revêtue de nanoparticules de carbonate alcalino-terreux très fines, au moyen de liants à base de copolymères comprenant comme monomères au moins un acide dicarboxylique et au moins un monomère issu du groupe constitué par des diamines, des triamines, des dialcanolamines ou des trialcanolamines et de l'épichlorhydrine. L'invention concerne également un procédé de production de ces fibres organiques à surface minéralisée, des bouillies aqueuses associées, leur utilisation dans la fabrication du papier, dans la finition des surface en papier, plastique, ciment et argile, dans des peintures et des vernis, ainsi que l'utilisation des liants selon l'invention pour revêtir les fibres organiques de carbonates alcalino-terreux sous forme de nanoparticules.

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