Method of using aldehyde-functionalized polymers to increase papermachine performance and enhance sizing
AssigneeNalco Company
InventorsMark Grimm, Michael R. St. John
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Abstract
Novel sizing mixtures to achieve improved sizing along with other benefits is disclosed and claimed. The invention is a composition comprising a sizing mixture having a stabilizing amount of one or more aldehyde-functionalized polymers and a sizing amount of a sizing composition. The invention is also a method of improving paper and paperboard production and enhancing sizing through adding an effective amount of the disclosed sizing mixture to the paper machine and a method of producing a medium having cellulosic fibers, wherein the method includes adding the disclosed sizing mixture to the medium at any point in a papermaking process.
Claims21
A method of improving paper and paperboard production and enhancing sizing, the method comprising adding an effective amount of a composition to the paper machine, the composition comprising a sizing mixture having a stabilizing amount of one or more aldehyde-functionalized polymers and a sizing amount of a sizing composition;
- wherein the sizing mixture is a sizing emulsion;
- wherein the one or more aldehyde-functionalized polymers have a weight average molecular weight of at least about 50,000 g/mole.
Dependencies are inferred from the claim text.