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Class Information
Number: 162/164.6
Name: Paper making and fiber liberation > Processes and products > Non-fiber additive > Synthetic resin > Nitrogen containing
Description: Subject matter wherein the synthetic resin molecules include the element nitrogen.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8647471 Process for the production of sized and/or wet-strength papers, paperboards and cardboards Feb. 11, 2014
8647472 Method of increasing filler content in papermaking Feb. 11, 2014
8636875 Enhanced dry strength and drainage performance by combining glyoxalated acrylamide-containing polymers with cationic aqueous dispersion polymers Jan. 28, 2014
8632659 Paper sizing composition Jan. 21, 2014
8613832 Process for the production of paper Dec. 24, 2013
8613836 Composition containing a cationic trivalent metal and debonder and methods of making and using the same to enhance fluff pulp quality Dec. 24, 2013
8604134 Modified vinylamine-containing polymers as additives in papermaking Dec. 10, 2013
8604128 Rosin-derived cationic compounds and polymers along with their methods of preparation Dec. 10, 2013
8597467 Water-soluble post branched cationic acrylamide polymers and use thereof Dec. 3, 2013
8562787 Method for producing paper Oct. 22, 2013
8524042 Method of treating paper forming wire surface Sep. 3, 2013
8518215 Quaternary vinylamine-containing polymers as additives in papermaking Aug. 27, 2013
8512520 Paper sizing agent Aug. 20, 2013
8506757 Hydrophobically modified poly(aminoamides) Aug. 13, 2013
8486227 Method for producing paper, paperboard and cardboard Jul. 16, 2013
8475630 Retention systems and methods for papermaking Jul. 2, 2013
8465623 Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermaking Jun. 18, 2013
8465624 Composition containing a multivalent cationic metal and amine-containing anti-static agent and methods of making and using Jun. 18, 2013
8454796 Manufacture of filled paper Jun. 4, 2013
8454798 Paper making processes and system using enzyme and cationic coagulant combination Jun. 4, 2013
8449721 Aqueous suspensions of fine-particulate fillers, method for the manufacture thereof and use thereof for the manufacture of fluid-containing papers May. 28, 2013
8444818 Stable and aqueous compositions of polyvinylamines with cationic starch, and utility for papermaking May. 21, 2013
8435382 High solids glyoxalated polyacrylamide May. 7, 2013
8404084 Latex-treated filler slurries for use in papermaking Mar. 26, 2013
8404083 Process for increasing the dry strength of paper, board and cardboard Mar. 26, 2013
8394237 Method for manufacturing paper, cardboard and paperboard using endo-beta-1,4-glucanases as dewatering means Mar. 12, 2013
8388802 Paper substrates useful in wallboard tape applications Mar. 5, 2013
8349134 Method for producing high dry strength paper, paperboard or cardboard Jan. 8, 2013
8349135 Papermaking additive and filled paper Jan. 8, 2013
8343311 Method for producing paper and cardboard Jan. 1, 2013
8337665 Method for producing paper, paperboard and cardboard Dec. 25, 2012
8328988 Reduction of the adsorption of quaternary ammonium salts onto cellulosic fibers Dec. 11, 2012
8308902 Retention and drainage in the manufacture of paper Nov. 13, 2012
8308903 Process for the production of paper Nov. 13, 2012
8298375 Friction papers comprising PIPD fiber Oct. 30, 2012
8273216 Process for the production of paper Sep. 25, 2012
8257554 Urea-formaldehyde resin composition and process for making fiber mats Sep. 4, 2012
8258211 Process for making material for acquisition of liquids and disposable absorbent article comprising the material Sep. 4, 2012
8252143 Filler for paper making process Aug. 28, 2012
8252864 Polymerization-enhancing composition for urea-formaldehyde resins, method of manufacture, method of use, and articles formed therefrom Aug. 28, 2012
8241461 Wet strength resins derived from renewable resources Aug. 14, 2012
8227529 Aqueous slurries of finely divided fillers, a process for their preparation and their use for the production of papers having a high filler content and high dry strength Jul. 24, 2012
8197640 Paper making process using cationic polyacrylamides and crosslinking compositions for use in same Jun. 12, 2012
8188204 Polymers, compositions and methods for use for foams, laundry detergents, shower rinses and coagulants May. 29, 2012
8172983 Controllable filler prefloculation using a dual polymer system May. 8, 2012
8168040 Manufacture of paper or paperboard May. 1, 2012
8152961 Paper substrates useful in wallboard tape applications Apr. 10, 2012
8152962 Method for producing paper with a high substance weight Apr. 10, 2012
8101710 Membrane separation process for removing residuals from polyamine-epihalohydrin resins Jan. 24, 2012
8101046 Methods for producing coating base papers and coated papers Jan. 24, 2012

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