Treated article, methods of making the treated article, and dispersion for use in making the treated article
AssigneeAgc Chemicals Americas, Inc.
InventorTess Duffin Crosetto
Life of this patent
Estimating the term…
Abstract
A treated article includes fibers, a sizing agent, and a retention aid. The sizing agent includes a wax or a component thereof having an acid value of from 10 mg to 220 mg, KOH/g as measured in accordance with USP 401. The retention aid includes a nitrogen-containing polymer independently selected from the group consisting of (i) a nitrogen-containing polymer of Formula I, (ii) a polyethyleneimine, (iii) a polyaminoamide, (iv) a copolymer formed from the reaction product of epichlorohydrin and dimethylamine, and (v) combinations thereof.
Claims13
A dispersion for use in a process for making a treated article, the dispersion comprising:
- a solvent;
- a sizing agent comprising a naturally-occurring wax or a component thereof-having an acid value of from 10 mg to 220 mg, KOH/g as measured in accordance with USP 401, with the sizing agent independently selected from a group consisting of a stearic acid, beeswax, candelilla wax, palmitic acid, behenic acid, and combinations thereof;
- and
- a retention aid comprising a nitrogen-containing polymer as set forth in Formula III
- wherein (b) and (e) individually represent the molar percent (mol. %) of each repeating unit included in the nitrogen-containing polymer of Formula III and the combined mol. % of (b) and (e) is 100 mol. %;
- and
- wherein R0 is independently selected from the group consisting of:
- H,
- and combinations thereof, and
- Y is independently selected from H, —OH, —R1, —OR1, —NR1R1, —NH2 and combinations thereof,
- R1 is independently selected from H, a straight chain or branched alkyl or alkenyl containing up to 22 carbons, and combinations thereof,
- R2 is independently selected from H, a monosaccharide, an oligosaccharide, polysaccharide moiety, a straight or branched alkyl or alkenyl group up to 22 carbons optionally containing a hydroxyl or aldehyde group, and combinations thereof,
- R3 is independently selected from a straight chain or branched alkylene group containing 1 to 22 carbon atoms or an alkene containing 2 to 22 carbon atoms, and combinations thereof,
- R4 is independently selected from a straight chain or branched alkylene group containing 1 to 18 carbon atoms, optionally substituted with a hydroxyl group, and combinations thereof,
- R5 is independently selected from H, —OH, —COOH, —COOR1, —OCOR1, —R1, —R1OH, —OR1, —CONH2, —CONHCHOHCHO, —NR1, —NR1R1, —R1NH2, —NH2, and combinations thereof,
- A is independently selected from C═O, —CH2, and combinations thereof, and
- X−is independently an anion.
A dispersion for use in a process for making a treated article, the dispersion comprising:
- a solvent;
- a sizing agent comprising a naturally-occurring wax or a component thereof having an acid value of from 10 mg to 220 mg, KOH/g as measured in accordance with USP 401, with the sizing agent independently selected from a group consisting of stearic acid, beeswax, candelilla wax, palmitic acid, behenic acid, and combinations thereof;
- and
- a retention aid comprising a polyethyleneimine with a weight average molecular weight of from 40,000 to 100,000, daltons and wherein from 15 to 35% of the amine groups within the polyethyleneimine are primary amines and from 35 to 65% of the amine groups within the polyethyleneimine are secondary amines, based on the total number of amine groups within the polyethyleneimine.
Dependencies are inferred from the claim text.