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Class Information
Number: 162/160
Name: Paper making and fiber liberation > Processes and products > Non-fiber additive > Preservative or antioxidant
Description: Processes and products which include a nonfiber additive which acts as a preservative for the paper or is an agent for preventing oxidation.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7377998 |
Light-fast overlay paper |
May. 27, 2008 |
| 7285181 |
Bleaching and brightness stabilization of lignocellulosic materials with water-soluble phosphines or phosphonium compounds |
Oct. 23, 2007 |
| 6984416 |
Archival spray composition |
Jan. 10, 2006 |
| 6978724 |
Copper complexes and their use as wood preservatives |
Dec. 27, 2005 |
| 6974632 |
Archival spray composition |
Dec. 13, 2005 |
| 6890455 |
Archival spray composition |
May. 10, 2005 |
| 6872282 |
Surface finishing of paper or board |
Mar. 29, 2005 |
| 6849158 |
Process for manufacturing a cellulosic paper product exhibiting reduced malodor |
Feb. 1, 2005 |
| 6777103 |
Fiber cement composite material using biocide treated durable cellulose fibers |
Aug. 17, 2004 |
| 6773822 |
Antifungal gypsum board |
Aug. 10, 2004 |
| 6743336 |
Composition for de-acidification of cellulose material |
Jun. 1, 2004 |
| 6740741 |
Diazo derivatives and process for their preparation |
May. 25, 2004 |
| 6680127 |
Antifungal gypsum board |
Jan. 20, 2004 |
| 6527914 |
Method of enhancing brightness and brightness stability of paper made with mechanical pulp |
Mar. 4, 2003 |
| 6500303 |
Inhibition of pulp and paper yellowing using nitroxides, hydroxylamines and other coadditives |
Dec. 31, 2002 |
| 6455125 |
Method of manufacturing a paper core material having a design of continuously geometric pattern and the paper core material manufactured by the method |
Sep. 24, 2002 |
| 6447644 |
Inhibition of pulp and paper yellowing using nitroxides, hydroxylamines and other coadditives |
Sep. 10, 2002 |
| 6319356 |
Process for controlling odor in paper and paperboard using a halohydantoin |
Nov. 20, 2001 |
| 6214165 |
Method for deacidification of papers and books by fluidizing a bed of dry alkaline particles |
Apr. 10, 2001 |
| 5972691 |
Dehalogenation of polyamine, neutral curing wet strength resins |
Oct. 26, 1999 |
| 5948357 |
Heat resistant paper interleaver for sheet metal |
Sep. 7, 1999 |
| 5928473 |
Inhibition of photo-yellowing in paper |
Jul. 27, 1999 |
| 5902454 |
Method of whitening lignin-containing paper pulps |
May. 11, 1999 |
| 5679308 |
Method of preserving porous material |
Oct. 21, 1997 |
| 5658431 |
Method for preventing yellowing of lignocellulosic products |
Aug. 19, 1997 |
| 5633054 |
Archival materials and packaging |
May. 27, 1997 |
| 5573641 |
Method for preventing microbial deposits in the wet end of papermachines using ethylene oxide/propylene oxide copolymer |
Nov. 12, 1996 |
| 5456801 |
Storage-stable solutions of carbonated magnesium ethylate in ethanol and their preparation and use |
Oct. 10, 1995 |
| 5433827 |
Method for the deacidification of papers and books |
Jul. 18, 1995 |
| 5422147 |
Method and apparatus for the deacidification of library materials |
Jun. 6, 1995 |
| 5393379 |
Wet laid fiberous thermoplastic material and aqueous dispersion for producing same |
Feb. 28, 1995 |
| 5368689 |
Paper and a method of paper manufacture |
Nov. 29, 1994 |
| 5360515 |
Method for reducing thermal and light-induced brightness reversion in lignin-containing pulps |
Nov. 1, 1994 |
| 5322558 |
Neutralizing agent for paper products |
Jun. 21, 1994 |
| 5232745 |
Method of neutralizing acid containing compositions present in an insulation board |
Aug. 3, 1993 |
| 5219524 |
System and method for preserving acid-containing articles |
Jun. 15, 1993 |
| 5215627 |
Method of making a water laid fibrous web containing one or more fine powders |
Jun. 1, 1993 |
| 5156718 |
Paper mats |
Oct. 20, 1992 |
| 5132130 |
Method of handling books for treatment |
Jul. 21, 1992 |
| 5104997 |
Mass treatment of cellulosic materials |
Apr. 14, 1992 |
| 5091055 |
Sheet prepared by wet means and usable as a backing for a covering material |
Feb. 25, 1992 |
| 5080754 |
Method for reducing brightness reversion in lignin-containing pulps and article of manufacture thereof |
Jan. 14, 1992 |
| 4935290 |
Heat-superstabilized semi-finished products containing thermoplastics resin |
Jun. 19, 1990 |
| 4927497 |
Method of preventing cellulosic web degradation using an amine vapor |
May. 22, 1990 |
| 4882190 |
Method of producing sulfite-free sugarbeet pulp |
Nov. 21, 1989 |
| 4871423 |
Enhanced dithionite bleaching |
Oct. 3, 1989 |
| 4863566 |
Process for the preservation of printed cellulosic materials |
Sep. 5, 1989 |
| 4847002 |
Improved stabilization of wood preservative solutions and preservation of wood by such solutions |
Jul. 11, 1989 |
| 4699663 |
Sizing composition and method |
Oct. 13, 1987 |
| 4619735 |
Method of retarding paper degradation with time by treatment with melamine, and method of producing ageing-resistant paper coated with melamine |
Oct. 28, 1986 |
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