Patent application number | Description | Published |
20100310776 | CATIONIC WET STRENGTH RESIN MODIFIED PIGMENTS IN BARRIER COATING APPLICATIONS - Methods for increasing one or more barrier properties of a sheet of paper or paperboard, which method comprises (a) preparing a dispersion having a cationic zeta potential by combining (1) a mixture containing one or more anionic pigments with (2) one or more polyamine-epihalohydrin cationic wet strength resins; (b) coating at least one side of the sheet of paper or paperboard with the dispersion at a coating weight of from about 0.1 g/m | 12-09-2010 |
20100310883 | Cationic Wet Strength Resin Modified Pigments In Water-Based Latex Coating Applications - Methods for improving one or more surface properties of a sheet of paper or paperboard, which method comprises (a) coating at least one side of the sheet of paper or paperboard with a dispersion having a cationic zeta potential formed by combining (1) a mixture containing one or more anionic pigments with (2) one or more polyamine-epihalohydrin cationic wet strength resins at a coating weight of from about 0.1 g/m | 12-09-2010 |
20110155339 | Process for Enhancing Dry Strength of Paper by Treatment with Vinylamine-Containing Polymers and Acrylamide-Containing Polymers - A process is disclosed for the production of paper with enhanced dry strength comprising adding to the wet end of a paper machine, (a) a vinylamine-containing aqueous solution polymer having a molecular weight of from 75,000 daltons to 750,000 daltons and (b) an amphoteric or cationic acrylamide-containing aqueous solution polymer having a molecular weight of from 75,000 daltons to 1,500,000 daltons, wherein the sum of the anionic and cationic monomers comprises at least 5% on a molar basis of the composition of the acrylamide-containing polymer. | 06-30-2011 |
20140174682 | COMPOSITION AND USE OF HYDROGENATED ALKYL KETENE DIMERS - Latent dispersants were made by the hydrogenation of an alkyl ketene dimer, alkenyl ketene dimer, or ketene multimer. Adding the latent dispersant to paper or paperboard increased its resistance to water and water vapor while maintaining recyclability and repulpability. Additionally, provided is a method for increasing the repulpability of a wax coated paper or paperboard. Dispersants made by the hydrolysis of the alkyl ketene dimer, alkenyl ketene dimer, and ketene multimer are also described. | 06-26-2014 |
20140374043 | CATIONIC WET STRENGTH RESIN MODIFIED PIGMENTS IN WATER-BASED LATEX COATING APPLICATIONS - A dispersion having a cationic zeta potential for use as a base coating on a sheet of paper or paperboard as a primer for a functional barrier top coating, wherein the composition comprises an anionic pigment containing mixture comprising one or more anionic pigments in an amount of at least about 20% dry weight of the mixture, and one or more polyamine-epihalohydrin cationic wet strength resin. | 12-25-2014 |