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| Number | Title | Issue Date |
| 7867357 | Polymer composition for peroxide bleaching of cellulosic fibre material and processes for peroxide bleaching The present invention relates to a polymer composition for peroxide bleaching of a cellulosic fiber material, said composition being in the form of a stable aqueous polymer solution obtained by bringing in an aqueous medium a first polymer (A) comprising a partly or... | 01/11/2011 |
| 7731818 | Process for deinking waste paper The present invention relates to a process for deinking waste paper comprising treating the waste paper with a peroxide compound in an aqueous alkaline medium in the presence of a first polymer (A) comprising a Ca-binding polymer in the form of a polycarboxylate pol... | 06/08/2010 |
| 7645358 | Process for biological deinking of office waste paper This invention relates to a biological process for deinking of office waste paper, and more particularly the present invention relates to a biological process for deinking of xerographic and inkjet printed paper using a gram-negative coccoid bacterium deposited at t... | 01/12/2010 |
| 7381305 | Method and apparatus for monitoring liquid and solid contents in a froth A method and apparatus are presented for determining the quantity of liquid and solid content in a removal stream of a froth created from a suspension that is generated during a froth flotation operation. Specifically, electrodes are immersed in the froth generated ... | 06/03/2008 |
| 7377993 | Methods for reducing fluorescence in pulp and paper Methods for reducing, and in some cases eliminating, fluorescence in pulp and paper, as well as the resulting articles, are provided. The methods destroy fluorescent activity of agents (e.g., whitening agents) which may be present in the pulp during processing. The ... | 05/27/2008 |
| 7364642 | Recycling of latex-containing broke Methods for recycling latex-containing broke are generally provided. Specifically, mechanical treatment may be employed to rework latex-containing broke for reuse in various products without the need for treatment with chemicals, such as hypochlorite, chlorine, or h... | 04/29/2008 |
| 7347391 | Waste processing apparatus and method The present invention includes an apparatus and method for processing solid waste products. The apparatus comprises a rotatably mounted cylindrical vessel having a first end, a second end and an interior surface, at least one end terminating in a hatch that may be o... | 03/25/2008 |
| 7306697 | Used paper diaper processing method and used paper diaper processing device The present invention provides a used paper diaper processing method comprising: a swell suppressing step for immersing a used paper diaper in a swell suppressant solution to suppress the swelling of the polymer with high water absorbability; a breakup step for brea... | 12/11/2007 |
| 7303652 | Reduced byproduct high solids polyamine-epihalohydrin compositions A process for rendering a polyamine-epihalohydrin resin storage stable, is described. The process entails treating a polyamine-epihalohydrin resin composition, where the resin is formed in a reaction having a molar ratio of epihalohydrin to secondary amine group of ... | 12/04/2007 |
| 7297224 | Method of deinking waste paper using cellulase without lowering paper strength and method of evaluating the same A deinking method using a cellulase which enables the load upon the environment to be reduced; and an evaluation method whereby a cellulase effective in deinking and the effective addition level of the cellulase can be appropriately determined. By proposing p... | 11/20/2007 |
| 7294226 | Method of removing high density stickies from secondary papermaking fibers A hybrid method for processing papermaking fibers to remove high density stickies typically includes utilizing a multistage array of forward cleaners coupled with a flotation cell which increases overall efficiency of the system. In a preferred embodiment, a first r... | 11/13/2007 |
| 7291247 | Absorbent sheet made with papermaking fibers with durable curl A process for bleaching high bulk cellulosic fiber and producing a durable elevated curl index includes: (a) concurrently bleaching, heat treating and convolving cellulosic fiber pulp at elevated temperature and pressure at high consistency generally under condition... | 11/06/2007 |
| 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 |
| 7282113 | Method for enzymatic deinking of waste papers, the waste papers so treated and the treating composition The present invention relates to a deinking composition and a method of deinking wastepaper by using a mixture of enzymes that act on constituents of all three waste paper components involved in ink retention on final pulp. The first component represents substrates ... | 10/16/2007 |
| 7279073 | Apparatus for liquid-based fiber separation An apparatus for treating fibrous material is disclosed. The apparatus may include a fiber separator, a de-liquefier, a dry-to-wet blender and a flash dryer. The fiber separator may be a liquid-based fiber separator. The de-liquefier is for removing liquid from the ... | 10/09/2007 |
| 7271211 | Dispersions containing fatty acid esters of styrenated phenol alkoxylates The present invention provides a dispersant for aqueous and non-aqueous systems which can disperse insoluble fine powders in non-aqueous liquids in a short period of time and give long-term dispersion stability to the resulting dispersions without allowing the forma... | 09/18/2007 |
| 7267743 | Wax emulsion coating applications Waxes prepared from hydrogenated plant oils, such as castor, palm, and soybean, are used to prepare water based emulsions. The inventive waxes, obtained from naturally derived, renewable resources, were emulsified under anionic, cationic and nonionic conditions, pro... | 09/11/2007 |
| 7235516 | Semiconductor cleaning composition comprising an ethoxylated surfactant A substrate surface cleaning liquid medium and a cleaning method using the cleaning liquid medium are capable of removing finely particulate contaminants more efficiently than conventional techniques from substrates for devices in the production of semiconductor dev... | 06/26/2007 |
| 7214292 | Addition of THP or THP+ salt to pulping liquors to destroy catalase and/or catalase producing bacteria Pulping liquors used in the bleaching of pulps by hydrogen peroxide, and containing catalase-producing bacteria and/or catalase enzyme are treated with tris (hydroxymethyl) phosphine or a tetrakis (hydroxymethyl) phosphonium salt to kill the bacteria and destroy the... | 05/08/2007 |
| 7205352 | Dispersions containing fatty acid esters of styrenated phenol alkoxylates The present invention provides a dispersant for aqueous and non-aqueous systems which can disperse insoluble fine powders in non-aqueous liquids in a short period of time and give long-term dispersion stability to the resulting dispersions without allowing the forma... | 04/17/2007 |
| 7189329 | Control of development of biofilms in industrial process water There is provided a method of inhibiting the development of a biofilm adjacent a surface, the method comprising intermittently applying a biofilm inhibiting substance to a collection of microorganisms having biofilm developing potential. Other embodiments are also d... | 03/13/2007 |
| 7175740 | Reduced by product polyamine-epihalohydrin resins Processes for rendering a polyamine-epihalohydrin resin storage stable, including processes that prepare a storage stable resin and/or processes that treat resins. A composition containing a polyamine-epihalohydrin resin which includes CPD-forming species can be tre... | 02/13/2007 |
| 7169257 | Method of deinking waste paper using a reduced alkali system The present invention relates to methods and compositions for deinking waste paper, optionally in non-alkaline or low-alkaline systems. Deinking compositions are provided that include a blend of an alkoxylated fatty alcohol and a fatty acid. The compositions may fur... | 01/30/2007 |
| 7166192 | Method for controlling pitch and stickies deposition A method for controlling Pitch and Stickies is disclosed. The method comprises adding hydrophobically modified hydroxyethyl cellulose (HMHEC) and cationic polymers to a cellulosic fiber slurry (pulp) or to a paper process or to a paper making system and results in a... | 01/23/2007 |
| 7166135 | Product and method for treating cotton A process for producing an ionic crosslinked fibrous material, such as a cellulosic fabric, paper, or other substrate, wherein the ionic crosslinked fiber exhibits an increased wrinkle resistance angle. A process for producing a cationized chitosan, wherein the cati... | 01/23/2007 |
| 7163604 | Production of fiber suspension from waste paper A fiber suspension is produced from waste paper by first filling a pulper with a batch of the waste paper. The pulper is operated to partly defibrate the batch of waste paper substantially without disintegrating coarse imputities into finer impurities. The partly de... | 01/16/2007 |
| 7163105 | Froth flotation process and apparatus A froth flotation process typically used to separate particulate materials such as coal, has a mixed size feed (1) separated in a sieve bend (2) into a stream of relatively fine particles (3) and a stream of relatively coarse particles (14 | 01/16/2007 |
| 7163564 | Method for brightening virgin mechanical pulp A method for brightening virgin mechanical pulp. The method comprises combining: (i) an aqueous solution comprising sodium borohydride and sodium hydroxide; and (ii) an aqueous solution comprising sodium bisulfite, in a chemical mixer and adding output of the chemic... | 01/16/2007 |
| 7125471 | Papermaking process using enzyme-treated sludge, and products Enzyme-treated papermaking sludges are provided, as are methods of making the enzyme-treated sludge. Papermaking processes that incorporate the enzyme-treated papermaking sludges into papermaking pulp are also provided as are paper and paperboard products made from ... | 10/24/2006 |
| 7118797 | Printed communication materials having reduced odor and textural or tactile properties The present invention relates to coatings and compositions suitable for use with imaged or printed products, such as business communication documents, pressure sensitive products, including labels and other materials used in the handling of information, whether inte... | 10/10/2006 |
| 7101832 | Cleaners containing peroxide bleaching agents for cleaning paper making equipment and method A cleaning solution for paper making equipment includes a stabilized source of peroxide in combination with a glycol ether solvent system and an alcohol ethoxylate. The peroxide system can be hydrogen peroxide stabilized with a phosphonate such as HEDP. The glycol s... | 09/05/2006 |
| 7074299 | Process for using a phloroglucinol color delta to control blending, deinking and bleaching of groundwood-containing secondary pulp A method of processing papermaking fiber includes characterizing the initial color of the pulp and the color of the pulp after treatment with a phloroglucinol stain. The color response of the pulp to the stain has been found to be a better indicator of processing ne... | 07/11/2006 |
| 7063770 | Method of removing high density stickies from secondary papermaking fibers A hybrid method for processing papermaking fibers to remove high density stickies typically includes utilizing a multistage array of forward cleaners coupled with a flotation cell which increases overall efficiency of the system. In a preferred embodiment, a first r... | 06/20/2006 |
| 7052614 | Control of development of biofilms in industrial process water There is provided a method of inhibiting the development of a biofilm adjacent a surface, the method comprising intermittently applying a biofilm inhibiting substance to a collection of microorganisms having biofilm developing potential. There is also provided a met... | 05/30/2006 |
| 7015022 | Mammalian catalase-dependent oxidation processes and methods for stimulating oxidative activities A catalase-dependent enzymatic oxidation process wherein a substrate to be oxidized is contacted with catalase in the absence of hydrogen peroxide is provided. Also provided are methods for using this process in a variety of biomedical, clinical and diagnostic appli... | 03/21/2006 |
| 7007805 | Hydroxamate composition and method for froth flotation The invention relates to a hydroxamate composition for collection of minerals by froth flotation, the composition including an aqueous mixture of hydroxamate wherein the pH of the composition is at least 11 and a method of collecting mineral values from an aqueous o... | 03/07/2006 |
| 6969443 | Method of making absorbent sheet from recycle furnish A process for making absorbent sheet material from recycle furnish includes treatment with a synergistic debonder composition. The debonder is capable of reducing tensile strength by 40 percent or more by way of a quaternary ammonium surfactant component and a nonio... | 11/29/2005 |
| 6949275 | Packaging laminate and container including it A packaging laminate (10) comprising a core layer (11) and a gas barrier layer (14) of moisture- and liquid-sensitive barrier polymer, e.g. a copolymer of ethylene and vinyl alcohol (EVOH). The packaging laminate (10) preferably has outer... | 09/27/2005 |
| 6939437 | Paper making processes using enzyme and polymer combinations Methods of making paper or paperboard are described. In one method, at least one cellulytic enzyme composition and at least one cationic polymer composition are introduced to a paper making pulp at about the same time to form a treated pulp. The pulp may also be tre... | 09/06/2005 |
| 6911488 | Physical methods of dispersing characteristic use particles and compositions thereof The present invention provides compositions that are capable of being dispersed in a target medium. The compositions include characteristic use particles entrapped within a physical entrapment phase, wherein the physical entrapment phase is dispersible in the target... | 06/28/2005 |
