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| Number | Title | Issue Date |
| 8114252 | Paper making compositions and processes using protein particulate, colloidal pigment, and latex polymer combinations A composition for treating paper products comprising protein particulate, colloidal pigment, synthetic latex polymer, and preservative is described, as well as methods and an apparatus using the composition for such treatments, and products obtained thereby. The tre... | 02/14/2012 |
| 8092649 | Method of decreasing the rate of photoyellowing with thiocyanic acid A method of decreasing the rate of photoyellowing in paper containing mechanical pulp comprising: applying an aqueous solution containing an effective amount of one or more salts of thiocyanic acid on the surface of a paper sheet in a papermaking process. ... | 01/10/2012 |
| 7377998 | Light-fast overlay paper An overlay paper is described which comprises a cellulosic non-woven to which a UV stabilizing agent is applied in an amount from 0.001 to 10% by weight, based on the grammage of the non-woven used, a process for producing the same and the use of the same for the pr... | 05/27/2008 |
| 7285181 | Bleaching and brightness stabilization of lignocellulosic materials with water-soluble phosphines or phosphonium compounds A method for the bleaching and brightness stabilization of lignocellulosic materials is described. The method involves the treatment of lignocellulosic materials, in particular, (a) wood pulps such as thermomechanical pulps (TMP) and chemithermomechanical pulps (CTM... | 10/23/2007 |
| 7201854 | Active compound combinations for protecting animal hides and leather The present application relates to the use of active compound combinations containing phenolic active compounds and fungicidal active compounds for preserving animal hides and leather. ... | 04/10/2007 |
| 6984416 | Archival spray composition A method of preserving cellulosic material that includes the application of an archival composition on the substrate. The aerosol archival product includes an aerosol archival composition and may be disposed in a pressurized container. The aerosol archival compositi... | 01/10/2006 |
| 6978724 | Copper complexes and their use as wood preservatives This invention relates to copper complexes that significantly reduce the decay of wood, cellulose, hemicellulose, and lignin caused by fungi. A process for treating such materials with these copper-containing anti-fungal agents is also disclosed. ... | 12/27/2005 |
| 6974632 | Archival spray composition A substrate that is treated with an archival composition. An aerosol archival product includes the aerosol archival composition and may be disposed in a pressurized container. The aerosol archival composition includes one or more chlorinated fluorinated hydrocarbons... | 12/13/2005 |
| 6890455 | Archival spray composition An aerosol archival product that includes an aerosol archival composition disposed in a pressurized container. The aerosol archival composition includes one or more chlorinated fluorinated hydrocarbons, an amino-containing compound and a basic metal compound. The ae... | 05/10/2005 |
| 6872282 | Surface finishing of paper or board Surface finishing of paper or board by applying an aqueous solution (LW) of a surface-finishing active ingredient (W) to a hydrophilic paper or board sheet (B), in which (W) consists of (W | 03/29/2005 |
| 6849158 | Process for manufacturing a cellulosic paper product exhibiting reduced malodor A process for manufacturing a cellulosic paper product (e.g., paper hand towels) exhibiting reduced malodor upon wetting. The process includes introducing a malodor inhibiting agent comprising isoascorbic acid and/or L-ascorbic acid antioxidants into the aqueous sus... | 02/01/2005 |
| 6777103 | Fiber cement composite material using biocide treated durable cellulose fibers A fiber cement composite material providing improved rot resistance and durability, the composite material incorporating biocide treated fibrous pulps to resist microorganism attacks. The biocide treated fibers have biocides attached to inner and outer surfaces of i... | 08/17/2004 |
| 6773822 | Antifungal gypsum board A novel gypsum board having antifungal properties is disclosed. The board comprises a gypsum core, front and back paper facings and an antifungal agent effective at inhibiting fungal growth. A preferred antifungal agent is cetyl pyridinium chloride. The antifungal a... | 08/10/2004 |
| 6743336 | Composition for de-acidification of cellulose material The product is presented in the form of a solution and is composed of carbonated magnesium di-n-propylate, n-propanol, and a hydrofluorocarbon (HFC) diluent selected from 1,1,1,2-tetrafluoroethane (HFC 134a) and 1,1,1,2,3,3,3-heptafluoropropane (HFC 227). The produc... | 06/01/2004 |
| 6740741 | Diazo derivatives and process for their preparation Novel diazo derivatives useful for the deacidification of paper material and the process for their preparation comprising three steps starting from an amine and ethyl chlorocarbonate, are described. ... | 05/25/2004 |
| 6680127 | Antifungal gypsum board A novel gypsum board having antifungal properties is disclosed. The board comprises a gypsum core, front and back paper facings and an antifungal agent effective at inhibiting fungal growth. A preferred antifungal agent is cetylpyridinium chloride. The an... | 01/20/2004 |
| 6527914 | Method of enhancing brightness and brightness stability of paper made with mechanical pulp Methods to enhance the brightness and brightness stability of paper and paperboard made with Mechanical Pulp are described and claimed. The method involves applying a Penetrant Compound to paper or paperboard in an amount from about 0.001 percent to about... | 03/04/2003 |
| 6500303 | Inhibition of pulp and paper yellowing using nitroxides, hydroxylamines and other coadditives Pulps or papers, especially chemimechanical or thermomechanical pulps or papers, which still contain lignin, have enhanced resistance to yellowing when they contain an effective stabilizing amount of a hindered amine compound which preferably is a nitroxi... | 12/31/2002 |
| 6455125 | Method of manufacturing a paper core material having a design of continuously geometric pattern and the paper core material manufactured by the method A method for manufacturing a paper core material is described. The paper core material has uses such as in the building industry and has the advantage that no toxic home syndrome is caused in a newly built house or office. The paper core material has a co... | 09/24/2002 |
| 6447644 | Inhibition of pulp and paper yellowing using nitroxides, hydroxylamines and other coadditives Pulps or papers, especially chemimechanical or thermomechanical pulps or papers, which still contain lignin, have enhanced resistance to yellowing when they contain an effective stabilizing amount of a hindered amine compound which preferably is a nitroxi... | 09/10/2002 |
| 6319356 | Process for controlling odor in paper and paperboard using a halohydantoin A method of inhibiting the autooxidation of fatty acids in a paper product made from pulp fiber is accomplished by adding to the pulp fiber between about 1 mole/metric ton and about 25 moles/metric ton, preferably between about 2 moles/metric ton and abou... | 11/20/2001 |
| 6214165 | Method for deacidification of papers and books by fluidizing a bed of dry alkaline particles Lignocellulosic materials such as paper are deacidified by exposure to acoustically agitated submicron alkaline particles which adhere to the materials being treated. The alkaline particles neutralize the acidity of the paper and counteract the effects of... | 04/10/2001 |
| 5972691 | Dehalogenation of polyamine, neutral curing wet strength resins Process for making polyamine-epihalohydrin resin products having very low levels of epihalohydrin or epihalohydrin hydrolyzates, particularly useful in papermaking, which includes, amongst other features, producing a polyamine-epihalohydrin polymer in aqu... | 10/26/1999 |
| 5948357 | Heat resistant paper interleaver for sheet metal The present invention relates to paper interleavers for sheet metal and, in particular, to a paper interleaver containing catalytically crosslinked polysiloxane capable of withstanding temperatures approaching 200° C. for prolonged periods of time.... | 09/07/1999 |
| 5928473 | Inhibition of photo-yellowing in paper The present invention relates to a method for the inhibition of photo-yellowing in paper rich in lignin by treatment of pulp or paper rich in lignin with a compound containing hydroxy functionalities that are capable of forming a ketal with a carbonyl gro... | 07/27/1999 |
| 5902454 | Method of whitening lignin-containing paper pulps A process to increase the whiteness of paper made from a lignin-containing pulp is disclosed which comprises adding to an aqueous slurry comprising a lignin-containing pulp, in the paper making step, an effective amount of a chelating agent to decrease th... | 05/11/1999 |
| 5679308 | Method of preserving porous material A porous material such as paper made of cellulose fiber prepared by a preservation method of the present invention can retain excellent folding endurance after being subjected to accelerated aging treatment performed at a high temperature with high humidi... | 10/21/1997 |
| 5658431 | Method for preventing yellowing of lignocellulosic products The invention relates to a method for protecting lignocellulosic material against yellowing caused by light or heat. The invention further concerns brightness stabilizing compositions intended for treatment of lignocellulosic materials. According to the i... | 08/19/1997 |
| 5633054 | Archival materials and packaging A layered material containing a buffer and optionally containing an adsorbent. The material may also include a vapor barrier. The material is used for the preservation of archival documents and objects. A container configured to permit the long term storage of... | 05/27/1997 |
| 5573641 | Method for preventing microbial deposits in the wet end of papermachines using ethylene oxide/propylene oxide copolymer A method of removing and preventing the build-up deposit-forming microorganisms in a papermachine fluid, the method comprising the step of treating the fluid with an aqueous, the aqueous solution including from about 0.1 to about 35 parts per million of a... | 11/12/1996 |
| 5456801 | Storage-stable solutions of carbonated magnesium ethylate in ethanol and their preparation and use The invention relates to storage-stable solutions of carbonated magnesium ethylate of the formula Mg(C2 H5 O)2 (CO2)n in ethanol and processes for their preparation, wherein (1) the magnesium content ... | 10/10/1995 |
| 5433827 | Method for the deacidification of papers and books Acidic papers, books, and other sheets of cellulosic material may be deacidified and so given a prolonged life by bringing the papers, books, or other sheets of cellulosic material to be treated in intimate contact with a source of solid alkali such as ca... | 07/18/1995 |
| 5422147 | Method and apparatus for the deacidification of library materials A method and apparatus for deacidification of cellulosic materials such as the pages of books, magazines, newspapers, documents and the like are provided which ensures that substantially the entirety of each page is treated. The method includes placing th... | 06/06/1995 |
| 5393379 | Wet laid fiberous thermoplastic material and aqueous dispersion for producing same A web of nonwoven fibers and thermoplastic matrix polymer is provided that is capable of yielding improved physical properties for articles molded from the web. Also provided are the aqueous dispersion to produce the web and the dried web as a laminate so... | 02/28/1995 |
| 5368689 | Paper and a method of paper manufacture The present invention reduces the normally marked yellowing of paper which is at least partially based on lignin-containing pulps. The invention relates to paper produced from fibre material and other paper ingredients in the form of at least one chemical. The... | 11/29/1994 |
| 5360515 | Method for reducing thermal and light-induced brightness reversion in lignin-containing pulps A method and article of manufacture thereof is provided for reducing brightness reversion in bleached lignin-containing pulps or newsprint by the treatment of the bleached lignin-containing pulp or newsprint with 2,5-dihydroxydioxane. In one embodiment, c... | 11/01/1994 |
| 5322558 | Neutralizing agent for paper products A neutralizing agent for effective but mild mass de-acidification of books and other paper products, consisting of a solution of one or more kinds of double alkoxides, each with one alkoxide of a metal promoting solubility, such as group IV metals, alumin... | 06/21/1994 |
| 5232745 | Method of neutralizing acid containing compositions present in an insulation board Described is a method of neutralizing acid containing compositions present in an insulation board comprising the steps of providing an insulation board containing a leachable acid composition and neutralizing the leachable acid by applying to the board an... | 08/03/1993 |
| 5219524 | System and method for preserving acid-containing articles An article preservation system and method includes an acid-containing article which is contacted with an alkaline substrate material and an artificial atmosphere which is substantially free of gaseous oxygen. The article, alkaline substrate material and a... | 06/15/1993 |
| 5215627 | Method of making a water laid fibrous web containing one or more fine powders A method of making a fibrous web containing at least two particulate materials and which includes mixing the dry particulate materials together in a substantially dry condition, using the dry mix to form at least part of an aqueous dispersion of fibres, a... | 06/01/1993 |
