D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 21/02 (2006.01) D21C 9/08 (2006.01) D21H 17/32 (2006.01) D21H 17/35 (2006.01) D21H 17/37 (2006.01) D21H 17/43 (2006.01)
Patent
CA 2262953
This invention relates to a liquid composition for the control of pitch deposition in pulp and paper making comprising an aqueous solution of (1) a cationic guar polymer, and (2) isobutylene/maleic anhydride copolymer. The invention also relates to a process for inhibiting pitch and stickies deposition in pulp and papermaking systems.
Cette invention a trait à une composition liquide permettant d'agir sur le dépôt de poix lors de la fabrication de pâte à papier et de papier. Cette composition comporte une solution aqueuse à base, (1), d'un polymère cationique de guar et (2), d'un copolymè re d'isobutylène et/ou d'anhydride malique. Elle porte également sur un procédé visant à empêcher les dépôts de poix et de substances collantes sur des systèmes de fabrication de pâte à papier et de papier.
Ashland Inc.
Ashland Licensing And Intellectual Property Llc
Gowling Lafleur Henderson Llp
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