D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 17/03 (2006.01) D21C 3/02 (2006.01) D21H 17/07 (2006.01) D21H 17/09 (2006.01) D21H 17/10 (2006.01) D21H 21/02 (2006.01) D21H 21/38 (2006.01)
Patent
CA 2656015
In general, the present disclosure is directed to compositions and processes to increase pulp yield, reduce extractives, and reduce scaling in a chemical pulping process. In one particular embodiment, for instance, the present disclosure is directed to a composition comprising a surface active agent, an alkaline mixture, at least one polymer, the polymer having a linear backbone segment having two ends, at least one phosphorus component, the phosphorus component chemically linked along the linear backbone segment of the polymer, and at least one end component, the end component chemically linked to one or both ends of the linear backbone segment of the polymer.
En général, la présente invention concerne des compositions et des procédés pour augmenter le rendement de pâte, réduire les produits d'extraction et réduire l'incrustation dans un procédé de désintégration chimique. Dans un mode de réalisation particulier, par exemple, la présente invention concerne une composition comprenant un agent tensioactif, un mélange alcalin, au moins un polymère, le polymère ayant un segment squelette linéaire à deux extrémités, au moins un composant phosphore, le composant phosphore étant chimiquement lié le long du segment squelette linéaire du polymère, et au moins un composant d'extrémité, le composant d'extrémité étant lié à l'une ou au deux extrémités du segment squelette linéaire du polymère.
Blackstone Michael M.
Dabdoub Atif M.
Blackstone Michael M.
Borden Ladner Gervais Llp
Dabdoub Atif M.
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