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| Number | Title | Issue Date |
| 6231659 | Sizing agents and starting materials for their preparation The sizing agents are mixtures of alkenyl succinic anhydrides in which the alkenyl groups have in the range of about 6 to about 40 carbon atoms, and in which at least 97 wt % of the alkenyl groups are bifurcated on the alpha carbon atom into two branches ... | 05/15/2001 |
| 6231719 | Uncreped throughdried tissue with controlled coverage additive A soft uncreped throughdried tissue product includes a distribution of surface deposits of an additive composition adapted to reduce skin irritation and redness or otherwise deliver a benefit to the user. An array of primary delivery zones with a relative... | 05/15/2001 |
| 6228895 | Method for plasticizing a composition comprised of cellulose fiber and a cellulose ester This invention relates to compositions, paper, thermoplastic sheets, and medical paper containing cellulose ester alkylpolyglycoside (APG) or a mixture of APG and polyether glycol, and, optionally, cellulose. The process of incorporating APG or a mixture ... | 05/08/2001 |
| 6228218 | Water-disintegratable cleaning sheet containing alkylcellulose A water-disintegratable cleaning sheet consisting of a fibrous sheet having incorporated thereinto, a binder of alkylcellulose; an electrolyte, and (a) a copolymer of a polymerizable acid anhydride and other compounds and/or (b) an amino acid. The water-d... | 05/08/2001 |
| 6228217 | Strength of paper made from pulp containing surface active, carboxyl compounds This invention is directed to a process for preparing an aqueous papermaking suspension containing a polyelectrolyte complex comprising providing an aqueous suspension of pulp fibers containing a water-soluble cationic polymer and a water-soluble anionic ... | 05/08/2001 |
| 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 |
| 6222006 | Wet strength thermosetting resin formulations and polyaminamide polymers suitable for use in the manufacture of paper products An aqueous formulation of a high solid content fully functional thermosettable wet strength resin designed for use in the manufacture of paper products is disclosed. The wet strength resin is the product of reaction of an epihalohydrin and an end-capped p... | 04/24/2001 |
| 6221211 | Multi-ply tissues having internal indicia A multi-ply tissue contains an internal indicia, such as a printed pattern applied to the center ply, which is visible through the outer plies of the tissue and which indicates the presence of some unique ingredients within the tissue product.... | 04/24/2001 |
| 6217707 | Controlled coverage additive application A soft tissue product includes deposits of a surface additive composition disposed in primary and supplementary delivery zones having different add-on levels. The supplementary add-on level is greater than 0 and less than the primary add-on level. For exa... | 04/17/2001 |
| 6197155 | Coated web printing paper with cold-set suitability A lightweight, coated web printing paper is described for suitability in the cold-set printing process, which has specific values for water penetration and ink absorption and has gloss values in the 40-50% range for a smoothness in the range of 500 sec. B... | 03/06/2001 |
| 6193838 | Soft-single ply tissue having very low sideness A one-ply paper tissue product and a method of making a one-ply paper product combining high strength and softness along with low sidedness. The paper tissue product exhibits a sidedness parameter of less than 0.3 preferably, less than 0.225, a tensile mo... | 02/27/2001 |
| 6193841 | Shaped, plastic articles comprising a cellulose fiber, a cellulose ester, and a non-ionic surfactant This invention relates to compositions, paper, thermoplastic sheets, and medical paper containing cellulose ester, alkylpolyglycoside (APG) or a mixture of APG and polyether glycol, and, optionally, cellulose. The process of incorporating APG or a mixture... | 02/27/2001 |
| 6190502 | Water-disintegratable fibrous sheet A fibrous sheet coated with a water-soluble binder of polyvinyl alcohol is impregnated with an aqueous solution dissolved with water-soluble carboxylate, so as to produce a water-disintegratable fibrous sheet. Salting out of the polyvinyl alcohol with the... | 02/20/2001 |
| 6187143 | Process for the manufacture of hydrophobic paper or hydrophobic board, and a sizing composition The invention relates to a process for the manufacture of hydrophobic paper or board by using rosin sizing, an organic complexing agent being used together with the rosin size. The invention also relates to a sizing composition.... | 02/13/2001 |
| 6187141 | Water-disintegratable fibrous sheet having layered structure and wiping sheet comprising the same A water-disintegratable fibrous sheet having a layered structure comprising: (a) at least one first fiber web comprising pulp of conifer and pulp of hardwood; (b) at least one second fiber web comprising pulp of conifer, having a content of pulp of hardwo... | 02/13/2001 |
| 6183600 | Method of making paper A method of coagulating particulates, as in papermaking or water clarification applications, for example, is provided wherein a zeolite crystalloid coagulant is added to water containing the solid matter, a source of multivalent cations, and a cationic ac... | 02/06/2001 |
| 6183550 | Paper size dispersions Aqueous paper size dispersions comprising: a) at least one paper sizing compound, and b) a water-soluble dispersant containing at least two hydrophilic groups and at least one hydrophobic group. Processes for sizing paper utilizing the aqueous paper size ... | 02/06/2001 |
| 6179961 | Tissue paper having a substantive anhydrous softening mixture deposited thereon Strong, soft, and low dusting tissue paper webs useful in the manufacture of soft, absorbent sanitary products such as bath tissue, facial tissue, and absorbent towels are disclosed. At least one surface of the tissue papers has uniform discrete surface d... | 01/30/2001 |
| 6176974 | Method for determining electrokinetic properties of papermaking furnish A method and apparatus for determining electrokinetic properties of a papermaking furnish includes mixing a sample of furnish in a container with a known amount of a charged additive and then measuring the streaming potential of the resultant ionically mo... | 01/23/2001 |
| 6171444 | Method and composition for the sizing of paper with a mixture of a polyacid and a polybase Compositions and methods are provided for the sizing of paper, to enhance the quality of images printed thereon. The novel sizing compositions contain as a sizing agent a mixture of a polyacid and a polybase. When applied to a paper substrate, such as in ... | 01/09/2001 |
| 6168686 | Papermaking aid A novel method of improving drainage rate and retention of fines which is effective in unfilled, newsprint-type furnish without a silica/bentonite-type particle is disclosed. The method comprises adding a cationic or amphoteric starch, and a cationic poly... | 01/02/2001 |
| 6165322 | Polyamidoamine/epichlorohydrin resins bearing polyol sidechains as dry strength agents Compositions suitable for use as dry strength additives comprising water soluble polyamidoamine/epchlorohydrin resin bearing polyol sidechains wherein the weight fraction of the polyol in the resin is less than 50 percent by weight and the polyol sidechai... | 12/26/2000 |
| 6165321 | Method of sizing substrates The invention relates to the sizing of substrates including paper, paperboard, wood and textiles, using an acetal sizing agent including 1,1-octadecoxyoctadecane, the distearyl acetal of stearyl aldehyde.... | 12/26/2000 |
| 6165319 | Printed, soft, bulky single-ply absorbent paper having a serpentine configuration and low sidedness and methods for its manufacture The present invention relates to a soft, thick, single-ply, printed, absorbent paper product having a Yankee side and an air side wherein the absorbent paper is printed on before or after embossing on the Yankee side, air side, or both sides, said absorbe... | 12/26/2000 |
| 6165259 | Aqueous dispersions of hydrophobic material The invention relates to an aqueous dispersion containing a dispersant and a disperse phase containing a hydrophobic material, the dispersant comprising an anionic compound having a molecular weight less than 50,000 and being selected from the group consi... | 12/26/2000 |
| 6162328 | Method for surface sizing paper with cellulose reactive and cellulose non-reactive sizes, and paper prepared thereby There is disclosed a method for sizing paper by adding to the surface of the paper a sizing composition comprising cellulose reactive and cellulose non-reactive size. The sized paper performs better in ink jet printing than does paper that is the same exc... | 12/19/2000 |
| 6162330 | Method for restricting air entrapment in a paper making process A method for restricting air entrapment in white water of a paper making process is described, which comprises adding to said white water a polysiloxane having an Si--C bonded substituent with at least one ether or alcohol oxygen. Preferably certain silox... | 12/19/2000 |
| 6162329 | Soft tissue paper having a softening composition containing an electrolyte deposited thereon Disclosed is a composition for softening an absorbent tissue and tissue structures softened using the composition. The composition includes an effective amount of a softening active ingredient; a vehicle in which the softening active ingredient is dispers... | 12/19/2000 |
| 6159339 | Paper size and paper sizing process Disclosed are a paper size consisting essentially of a) alkyl ketene dimer and/or alkenyl succinic acid anhydride; b) degraded, liquid cationic starch having a cationic charge density of 0.5 to 3.5 meqv/g, a degree of substitution of more than 0.1 and a v... | 12/12/2000 |
| 6159335 | Method for treating pulp to reduce disintegration energy A method of reducing the amount of energy required to disintegrate comminution sheets formed from cellulose fibers without adversely affecting the absorbency, strength, or fluid transport properties of airfelts formed from the comminuted treated fibers. T... | 12/12/2000 |
| 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 |
| 6153053 | Soft, bulky single-ply absorbent paper having a serpentine configuration and methods for its manufacture The present invention relates to a soft, thick, single-ply, absorbent paper in the form of a bathroom tissue, facial tissue, or napkin wherein the cellulosic fibers incorporated in the furnish comprise: (a) at least 20 percent by weight of the fibers in t... | 11/28/2000 |
| 6149769 | Soft tissue having temporary wet strength Disclosed is a soft, low density paper product made using papermaking fibers and a cationic temporary wet strength resin. Such paper products have a density less than about 0.6 grams per cubic centimeter, a basis weight is between about 10 and about 65 gr... | 11/21/2000 |
| 6146497 | Adhesives and resins, and processes for their production Additives for addition to starting materials in cellulose based products for imparting strength and crepe. Additives for use in paper production which impart strength to the product and which can be used in creping adhesives. Enzyme activated resins for u... | 11/14/2000 |
| 6146494 | Modified cellulosic fibers and fibrous webs containing these fibers Disclosed are modified cellulosic fibers having a dry zero span tensile index that is substantially less than the dry zero span tensile index of the corresponding unmodified cellulosic fibers. Fibers having reduced dry zero span tensile may provide fibrou... | 11/14/2000 |
| 6143132 | Process for imparting wet strength to paper The novel AOX-free process for imparting wet strength to paper with water-dispersible polyisocyanates is distinguished by a good wet-strength effect, even under mild drying conditions, and does not affect the activity of optical brighteners used at the sa... | 11/07/2000 |
| 6143131 | Soft bulky single-ply tissue having low sidedness and method for its manufacture 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 specif... | 11/07/2000 |
| 6132557 | Water-disintegratable fibrous sheet containing fibers having different fiber lengths and process for producing the same A water-disintegratable fibrous sheet comprising a web of fibers comprising pulp of hardwood and pulp of conifer, pulp of conifer having a fiber length longer than that of the pulp of hardwood, and a water-insoluble or water-swellable binder being contain... | 10/17/2000 |
| 6126784 | Process for applying chemical papermaking additives to web substrate A process for applying a chemical additive, such as a softener, to a fibrous web comprises the steps of: providing a fibrous web having a first side and a second side opposite to the first side; providing a chemical additive; depositing the chemical addit... | 10/03/2000 |
