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| Number | Title | Issue Date |
| 7758725 | Method of mixing a paper making chemical into a fiber suspension flow A method of and apparatus for feeding a chemical into a liquid flow are especially suited for use with a headbox of a paper machine, particularly for feeding a retention aid into a fiber suspension flow going to the headbox so that in a mixing apparatus feed liquid ... | 07/20/2010 |
| 7429309 | Coating compositions comprising alkyl ketene dimers and alkyl succinic anhydrides for use in paper making Additives for paper making are disclosed herein. Specifically, the additives are wax-free alternatives to conventional coatings, including ASA, AKD and optionally an acrylic containing composition. Other additives may be included in the coating, such as cationic par... | 09/30/2008 |
| 7407561 | Use of water-soluble crosslinked cationic polymers for controlling deposition of pitch and stickies in papermaking The present invention relates to a method for controlling pitch and stickies deposit in a pulp and papermaking process using crosslinked cationic polymers made by controlled addition of a water soluble radical initiator at reaction temperature with agitation for cha... | 08/05/2008 |
| 7311209 | Filter material A filter material has one or more plies of fiber layers, in particular for the production of filter bags and filter cones for infused beverages, the at least one fiber layer containing fibers or microcapsules having phase change material. Paraffinic hydrocarbons can... | 12/25/2007 |
| 7160420 | Use of dispersions of crosslinked cationic starch in papermaking Starch dispersions comprising discrete particles of crosslinked cationic starch in an aqueous liquid can be used in papermaking. They can be used as a wet-end additive or in surface coating. The starch dispersions can be prepared by a process comprising: (a) obtaini... | 01/09/2007 |
| 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 |
| 7094319 | Additive for paper making The object of the invention is an additive for paper making by means of which the dusting tendency of paper can be reduced. The agent is based on starch, the molecular size of which has been reduced, and which has been cationized to a charge of less than 1.5 meq/g w... | 08/22/2006 |
| 7070677 | Method and apparatus for treating pulp with filler The present invention relates to a method of and apparatus for treating pulp with filler. The method and apparatus according to the invention are especially well suitable for treating pulp with filler, the mixing of which to the pulp requires simultaneous treatment ... | 07/04/2006 |
| 6986832 | Arrangement for mixing flows in papermaking process The invention relates to a method and a mixer for mixing flows of a papermaking process. In the invention, a first flow is conveyed through a tube, and turbulence is generated in it by means of form parts located on the inner periphery of the tube. The mixing zone o... | 01/17/2006 |
| 6875308 | Method of making foam coated mat online A new foam coated nonwoven fibrous mat having properties particularly suited for a facer on gypsum wallboard, laminates made therefrom and the method of making the mat is disclosed. The mat preferably contains a major portion of glass fibers and a minor portion of a... | 04/05/2005 |
| 6855229 | Low viscosity bilayer disrupted softening composition for tissue paper Disclosed is a composition for softening a wet laid cellulosic structure. A particularly preferred structure is an absorbent tissue. Further disclosed are tissue structures softened using the composition. The composition includes an effective amount of a softening a... | 02/15/2005 |
| 6719862 | Compressible wood pulp product A highly densifiable wood pulp product is disclosed. In one embodiment, the densifiable product includes fibers having low coarseness, preferably having a fiber coarseness less than about 22 mg/100 m, and a densifying agent. In another embodiment, the densifiable pr... | 04/13/2004 |
| 6716313 | Additive for paper making The object of the invention is an additive for paper making by means of which the dusting tendency of paper can be reduced. The agent is based on starch, the molecular size of which has been reduced, and which has been cationized to a charge of less than 1.5 meq/g w... | 04/06/2004 |
| 6706148 | Method for fixing a mineral filler on cellulosic fibers and method for making a sheet of paper The invention relates to a method for affixing a mineral filler onto an aqueous cellulose-fiber suspension. In this invention, the method uses as its reaction medium an aqueous cellulose-fiber suspension which is derived from papermaking and which includes at least ... | 03/16/2004 |
| 6677427 | Enzyme-catalyzed polyamides and compositions and processes of preparing and using the same A polyamide, the enzymatic reaction product of at least one polyamine and diester, and processes for preparing and using the same. In addition, processes for preparing and using the enzymatic reaction product as creping adhesives and wet strength resins t... | 01/13/2004 |
| 6667384 | Methyl acrylate-diamine based polyamide resins and processes for producing the same The present invention contemplates poly(aminoamide) pre-polymers, polyamide polymers, a multi-step process for the synthesis of these pre-polymers and polymers using acrylates and at least one monomer containing at least two primary amines, and the resins... | 12/23/2003 |
| 6638884 | Compressible wood pulp product A highly densifiable wood pulp product is disclosed. In one embodiment, the densifiable product includes fibers having low coarseness, preferably having a fiber coarseness less than about 22 mg/100 m, and a densifying agent. In another embodiment, the den... | 10/28/2003 |
| 6620295 | Modified polysaccharides containing amphiphilic hydrocarbon moieties Modified polysaccharides (such as starches, gums, chitosans, celluloses, alginates, sugars, etc.), which are commonly used in the paper industry as strengthening agents, surface sizes, coating binders, emulsifiers and adhesives, can be combined into a sin... | 09/16/2003 |
| 6610174 | Patterned application of polymeric reactive compounds to fibrous webs Methods for making high wet performance webs. A polymeric anionic reactive compound is applied heterogenously to a cellulosic fibrous web followed by curing of the compound to crosslink the cellulose fibers. The resulting tissue has high wet resiliency, h... | 08/26/2003 |
| 6596126 | Modified polysaccharides containing aliphatic hydrocarbon moieties Modified polysaccharides (such as starches, gums, chitosans, celluloses, alginates, sugars, etc.), which are commonly used in the paper industry as strengthening agents, surface sizes, coating binders, emulsifiers and adhesives, can be combined into a sin... | 07/22/2003 |
| 6565710 | Filter material with flavoring and flavor-protecting properties and a process for its production A filter material is described that is coated with cyclodextrins charged with taste substances, whereby the filter material also has 1 to 99% uncharged cyclodextrins, as well as a process for its production.... | 05/20/2003 |
| 6540878 | Stabilized filler, its production and use The present invention relates to a stabilized calcium carbonate filler, a process for stabilizing calcium carbonate, the use of the stabilized filler in a paper making system, and an improved paper making process wherein calcium carbonate is used as a fil... | 04/01/2003 |
| 6521087 | Method for forming a diaper A binder is applied to particles which are then combined with fibers to bind the particles to the fibers. The particles have functional sites for forming a hydrogen bond or a coordinate covalent bond. The fibers have hydrogen bonding functional sites. The... | 02/18/2003 |
| 6517678 | Modified polysaccharides containing amphiphillic hydrocarbon moieties Modified polysaccharides (such as starches, gums, chitosans, celluloses, alginates, sugars, etc.), which are commonly used in the paper industry as strengthening agents, surface sizes, coating binders, emulsifiers and adhesives, can be combined into a sin... | 02/11/2003 |
| 6425979 | Method for making superabsorbent containing diapers A binder is applied to particles which are then combined with fibers to bind the particles to the fibers. The particles have functional sites for forming a hydrogen bond or a coordinate covalent bond. The fibers have hydrogen bonding functional sites. The... | 07/30/2002 |
| 6423181 | Gravure paper and manufacturing process for this paper A gravure paper and a method of manufacturing gravure paper having a maximal roughness depth of approximately 1.40 μm. The method utilizes a paper machine including a forming system, a first press section, and a drying section, and includes producing a s... | 07/23/2002 |
| 6406594 | Method for manufacturing paper products comprising polymerized mineral networks Composite products having mineral networks polymerized about cellulosic material and a method for making such products are described. One embodiment of the composite product comprises a paper product having a polymerized mineral network, such as a silica/... | 06/18/2002 |
| 6365001 | Wet-laid nonwoven mat and a process for making same A method for making a nonwoven reinforcing may for vinyl floor coverings is described. A base mat is formed from a mixture of glass fibers and polymeric binder fibers and/or powder, follows by treatment with a second water-based polymeric binder compositi... | 04/02/2002 |
| 6322665 | Reactive compounds to fibrous webs Methods for making high wet performance webs. A polymeric anionic reactive compound is applied heterogenously to a cellulosic fibrous web followed by curing of the compound to crosslink the cellulose fibers. The resulting tissue has high wet resiliency, h... | 11/27/2001 |
| 6306493 | Laser-markable paper and board products There is provided laser-markable paper and board products which include micronized polymers comprising of linear aromatic polyesters and/or of linear polyarylenes having a particle size of from 0.1 to 100 μm as absorber material and material for carboniz... | 10/23/2001 |
| 6267843 | Wet-laid nonwoven mat and a process for making same A method for making a nonwoven reinforcing may for vinyl floor coverings is described. A base mat is formed from a mixture of glass fibers and polymeric binder fibers and/or powder, follows by treatment with a second water-based polymeric binder compositi... | 07/31/2001 |
| 6264791 | Flash curing of fibrous webs treated with polymeric reactive compounds Methods for making high wet performance webs. A polymeric anionic reactive compound is applied to a cellulosic fibrous web followed by flash curing of the compound to crosslink the cellulose fibers. The resulting tissue has high wet resiliency, high wet s... | 07/24/2001 |
| 6251223 | Process for improving printing paper A process for improving gravure and offset printability of coated and uncoated printing papers by increasing filler share in the paper on the top and bottom sides or in the outer layers of the paper web by using a retention agent, and providing the outerl... | 06/26/2001 |
| 6231721 | Compressible wood pulp product A highly densifiable wood pulp product is disclosed. In one embodiment, the densifiable product includes fibers having low coarseness, preferably having a fiber coarseness less than about 22 mg/100 m, and a densifying agent. In another embodiment, the den... | 05/15/2001 |
| 6225437 | Sizing agents of enhanced performance capabilities Provided are alkenyl and/or alkyl succinimides formed from at least one alkenyl or alkyl succinic anhydride and at least one aliphatic amine having one or two primary amino groups in the molecule. These succinimides are characterized in that each alkenyl ... | 05/01/2001 |
| 6224714 | Synthetic polymers having hydrogen bonding capability and containing polysiloxane moieties Synthetic polymers having hydrogen bonding capability and one or more polysiloxane moieties are capable of providing two distinct properties to paper products, such as tissues, which properties heretofore have been imparted through the use of at least two... | 05/01/2001 |
| 6156157 | Method for making soft tissue with improved bulk softness and surface softness The invention relates to tissue products having improved softness properties and methods of making them. Specifically, improved softness is achieved by incorporating one or more softeners/debonders into the fiber furnish at the wet end of the tissue machi... | 12/05/2000 |
| 6083348 | Method for producing paper Paper is produced by draining a paper stock containing process chemicals on a paper machine, a main stream of the paper stock and a dilution stream which consists of white water, contains at least 5% by weight of the process chemicals and amounts to 5-35%... | 07/04/2000 |
| 6054021 | Process of manufacturing authenticatable paper products An authenticatable paper product is prepared by adding to a papermaking furnish fibers treated with from about 50-200 lb/ton of a fluorescent whitening agent (FWA). The paper made from the papermaking furnish will include fluorescent cellulosic fibers in ... | 04/25/2000 |
| 5962123 | Decorative laminating sheets employing paper chips and decorative laminates made therefrom A decorative laminate comprising a decorative paper sheet and a plurality of resin impregnated sheets wherein color is incorporated into said decorative paper sheet as non-resin impregnated paper chips or one or more colors.... | 10/05/1999 |
