| US 7,491,294 B2 | ||
| Compositions for reducing paper linting and dusting | ||
| François Brouillette, St-Jean-Chrysostome (Canada); Daniel Morneau, Trois-Rivieres (Canada); and François Fournier, Saint-Augustin-de-Desmaures (Canada) | ||
| Assigned to Ciba Specialty Chemicals Corporation, Tarrytown, N.Y. (US) | ||
| Filed on Sep. 29, 2004, as Appl. No. 10/953,911. | ||
| Claims priority of provisional application 60/509262, filed on Oct. 08, 2003. | ||
| Prior Publication US 2005/0077022 A1, Apr. 14, 2005 | ||
| Int. Cl. D21H 17/10 (2006.01); D21H 17/28 (2006.01); D21H 17/60 (2006.01) | ||
| U.S. Cl. 162—158 [162/161; 162/172; 162/175; 162/185; 558/70; 558/207] | 11 Claims |
| 1. A method to reduce paper linting and dusting, which method comprises adding to fiber pulp prior to web formation during
paper making an amount of about 0.01 to about 5 kg per ton of paper produced an additive composition comprising a mixture
of phosphate esters of formula II
R1O[PO(OZ)]OZ II
neutralized by an amine base
wherein
R1 is an alkyl chain of 2-24 carbon atoms,
Z is independently H or an alkyl chain of 1-24 carbon atoms, wherein the amine base is selected from the group consisting
of diethanolamine, triethanolamine, diisopropanolamine and triisopropanolamine.
|