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| Number | Title | Issue Date |
| 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 |
| 6451167 | Wetlay process for manufacture of highly-oriented fibrous mats A mat containing highly machine direction oriented (90% or greater), discontinuous reinforcement fibers, is produced on inclined wire or rotary paper making machinery. Fibers are first uniformly dispersed in an aqueous medium containing thickeners and wet... | 09/17/2002 |
| 6451063 | Cellulase for use in industrial processes A method for treating cellulosic materials is disclosed which comprises contacting the cellulosic material with a cellulase obtainable from Thermomonospora fusca corresponding to E5 or a derivative thereof. Particularly preferred methods comprise stonewas... | 09/17/2002 |
| 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 |
| 6447643 | Method of producing a wetlaid thermobonded web-shaped fibrous material and material produced by the method Method of producing an impulse dried wetlaid fibrous web-shaped material, such as paper or non-woven, having a three-dimensional pattern of alternating raised and recessed portions, which have been provided in connection with impulse drying, at which the ... | 09/10/2002 |
| 6447641 | Transfer system and process for making a stretchable fibrous web and article produced thereof The present invention encompasses a machine direction extensible noncalendered fibrous web produced by a transfer system of at least eight percent negative draw including a matrix of fibrous web material having a wet mullen burst at least about 10 percent... | 09/10/2002 |
| 6444024 | Sizing composition The present invention relates to a substantially water-free sizing composition, an aqueous sizing dispersion and a process for the production of paper and board. The composition or dispersion comprises a cellulose reactive sizing agent and a copolymer whi... | 09/03/2002 |
| 6440269 | Base sheet for wallcoverings A paper-based sheet for wallcoverings that is made in a single pass on a standard paper making machine is described. The sheet has a print side and a barrier side and is made from softwood pulp in an amount of about 15% to about 40% by dry weight; hardwoo... | 08/27/2002 |
| 6440267 | Soft creped tissue Soft tissues, such as facial tissues, having improved softness can be produced by incorporating two different softening compounds into the tissue, namely an imidazolinium quaternary compound and a cationic amidoamine compound.... | 08/27/2002 |
| 6436235 | N-substituted perfluoroalkylated pyrrolidines and process for making them N-substituted perfluoroalkylated pyrrolidines of the formula III ##STR1## where RF, B, Q and q are as defined herein are prepared from diallylamine, a perfluoroalkyl iodide and an amino-reactive compound selected from the group of carboxylic ac... | 08/20/2002 |
| 6432269 | Opacifier for alkaline paper A novel opacifying composition for use with alkaline paper which does not react with alkyl succinic anhydride, is provided. The opacifier comprises a mixture of an aromatic polymer, preferably a styrene acrylic polymer, and a stearamide which preferably c... | 08/13/2002 |
| 6432272 | Compressed absorbent fibrous structures The present invention provides compressed paper webs that maintain a substantial amount of their absorptive capacity and wet strength when compressed. The compressed webs bounce back to a portion of their uncompressed state when wetted. The present compre... | 08/13/2002 |
| 6423183 | Paper products and a method for applying a dye to cellulosic fibers Chemical additives can be adsorbed on cellulosic papermaking fibers at high levels with a minimal amount of unadsorbed chemical additives present in the papermaking process water. A method includes treating a fiber slurry with an excess of the chemical ad... | 07/23/2002 |
| 6423180 | Soft and tough paper product with high bulk The present invention is directed to a paper product which is very flexible, tough when wet, and has a high bulk. In particular, the paper towel has a dry, specific modulus less than 0.0040 kilograms, a bulk greater than 10 cubic centimeters per gram and ... | 07/23/2002 |
| 6420013 | Multiply tissue paper Disclosed is a soft, textured, multi-ply tissue paper product. The tissue paper product has at least one ply of multi-region construction with a first region that is raised above a second region. The ply of multi-region construction is orientated so that ... | 07/16/2002 |
| 6419791 | Amino ester that imparts optical properties when added to paper A novel method of opacifying paper, and a novel opacifier and opacifying composition which opacify as well as brighten paper, is provided. The novel opacifier comprises at least one diglyceride and at least one amino-ester compound. The opacifying composi... | 07/16/2002 |
| 6419790 | Methods of making an ultra soft, high basis weight tissue and product produced thereby The present invention is a method of making an ultra soft, multi-ply tissue using wet press technology and the product produced thereby.... | 07/16/2002 |
| 6419792 | Photocatalytic pulp composition There is provided a photocatalytic pulp composition characterized in that 40 to 95 wt % of a pulp and/or a paper having the water content of 3 wt % or less, the average fiber diameter of 5 to 300 μm and the average fiber length of 0.7 to 70 mm is blended... | 07/16/2002 |
| 6416628 | Method of producing dimensionally stable paper and paperboard products A method of producing dimensionally stable paper and/or paperboard products by treating a hygroreactive cellulosic fiber matrix with a hydrophobic sizing agent solution; and drying the treated fibers using heat and/or pressure so that the hydrophobic sizi... | 07/09/2002 |
| 6416624 | Spray application of an additive composition to sheet materials The present invention is directed to methods for the spray application of additive compositions containing additive materials in the manufacture of sheet material products, such as paper products, textile products, and flexible sheet products by using com... | 07/09/2002 |
| 6413365 | Method of loading a fiber suspension with calcium carbonate A method of loading fibers in a fiber suspension with calcium carbonate includes the step of transporting a fiber suspension to an inlet of a housing. The fiber suspension includes calcium oxide and/or calcium hydroxide. The fiber suspension is distribute... | 07/02/2002 |
| 6413372 | Starch polymer combinations used in papermaking Paper having improved retention properties made by the addition to the papermaking system of a combination of cationic starch and starch phosphate, the starch combination having a select net zeta potential.... | 07/02/2002 |
| 6413370 | Roll printing paper suitable for cold set printing and process for its production A coated roll printing paper for printing with the cold-set offset-printing process is described, which gives a printing result comparable with that of low-weight coated matte grades. The paper is characterized by a high proportion of a fine calcium carbo... | 07/02/2002 |
| 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 |
| 6398860 | Sizing agent composition for printing paper A sizing agent composition for printing paper comprising (A) a water-soluble diorganopolysiloxane described by formula ##STR1## where each R is independently selected from the group consisting of a hydrogen atom, methyl group, and ethyl group, each R1 | 06/04/2002 |
| 6391155 | Coated web printing paper suitable for cold-set offset printing A lightweight, coated web printing paper is described which is suitable for use in the cold-set printing process, which has specific values for water penetration and ink absorption and has gloss values of at least 20% for a smoothness in the range of 200 ... | 05/21/2002 |
| 6383336 | Strong, soft non-compressively dried tissue products containing particulate fillers A relatively soft, strong, opaque paper product and a process for making the same are provided. In particular, a tissue, or other paper product, is formed by incorporating into the product an alkylamide or alkylimide softening agent along with particulate... | 05/07/2002 |
| 6379498 | Method for adding an adsorbable chemical additive to pulp during the pulp processing and products made by said method Pulp fibers can be treated with adsorbable chemicals with a minimal amount of unadsorbed chemical additives present later in the papermaking process water. A method for adding an adsorbable chemical to pulp includes mixing pulp fibers that have never been... | 04/30/2002 |
| 6379497 | Bulk enhanced paperboard and shaped products made therefrom An improved paperboard has been bulk enhanced by retaining a substantial portion of bulk-enhanced additives including expandable microspheres in a suitable distribution within the paperboard. The cellulosic paperboard web has an overall fiber weight (w) o... | 04/30/2002 |
| 6372088 | Enhancer performance for PEO A process is disclosed for the production of paper and paper-like products from a suspension of papermaking materials to which poly(ethylene oxide) and a phenolic type cofactor which may be produced by a Williamson synthesis from a resin, are added to imp... | 04/16/2002 |
| 6372087 | Soft, bulky single-ply absorbent paper having a serpentine configuration Single-ply absorbent tissue paper wherein of the fibers incorporated in the web: (a) at least 20% by weight have a coarseness exceeding 23 mg/100 m; (b) at least about 20% by weight have a coarseness of less than about 12 mg/100 m; and (c) the weight aver... | 04/16/2002 |
| 6372035 | Hydrophobising system for paper or similar fiber product The invention relates to a hydrophobising system for paper or a similar fiber product, comprising (1) a ketene dimer, and (2) an alkenyl and/or alkyl succinic acid and/or a salt thereof. The invention additionally relates to a method for hydrophobising paper or ... | 04/16/2002 |
| 6368456 | Method of making paper from aldehyde modified cellulose pulp with selected additives This invention relates to paper comprising aldehyde modified cellulose pulp prepared using nitroxyl radical mediated oxidation and further containing selected additives comprising aldehyde functional polymers or polymers containing functionality capable o... | 04/09/2002 |
| 6368454 | Method of making soft bulky single ply tissue The present invention relates to a soft, thick, single-ply tissue and to a process for the manufacture of such tissue product having a basis weight of at least about 15 lbs./3,000 square foot ream and having low sidedness, said tissue exhibiting a specifi... | 04/09/2002 |
| 6361653 | Method of increasing retention in papermaking using colloidal borosilicates The invention comprises a borosilicate retention aid composition and a method for improving the production of paper by addition of the borosilicate. The borosilicate may be utilized in conjunction with a high molecular weight synthetic flocculent and/or s... | 03/26/2002 |
| 6361651 | Chemically modified pulp fiber The wet strength softness absorbency, absorbency rate and other valuable properties in paper products, tissues, wipes, towels, etc. can be improved by using, in the paper forming process, a cellulosic material comprising a carboxymethyl cellulose material... | 03/26/2002 |
| 6358364 | Method for flocculating a papermaking furnish using colloidal borosilicates The invention comprises a borosilicate retention aid composition and a method for improving the production of paper by addition of the borosilicate. The borosilicate may be utilized in conjunction with a high molecular weight synthetic flocculant and/or s... | 03/19/2002 |
| 6348133 | Smooth textured wet-laid absorbent structure A smooth-textured non-woven, superabsorbent particle-impregnated fibrous structure is disclosed. The web exhibits an improved smooth surface texture. The structure contains from 50% to 80% of ion sensitive SAP having a particle size of less than 200 micro... | 02/19/2002 |
| 6348132 | Alkenyl succinic anhydride compositons and the use thereof Novel alkenyl succinic anhydride (ASA) compositions and the use thereof. The disclosed ASA compositions may be derived from maleic anhydride and olefins having desirable carbon chain lengths and double bond distributions. The present ASA compositions prov... | 02/19/2002 |
| 6346554 | ASA size emulsification with a natural gum for paper products A natural gum is used to provide emulsification of alkenyl succinic anhydride (ASA) sizing agents for paper products. The natural gum can be nonionic, cationic, anionic, amphoteric, oxidized, derivatized or modified. The alkenyl succinic anhydride size em... | 02/12/2002 |
