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6346170 |
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...
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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,...
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6319361 |
Paper products having wet strength from aldehyde-functionalized cellulosic fibers and polymers
Paper products having high initial wet strengths are disclosed. The paper products comprise cellulosic fibers having free aldehyde groups, which fibers are combined with a water-soluble polymer...
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6306255 |
Sizing of paper
The invention relates to an aqueous disperion containing a cellulose-reactive sizing agent and an anionic hydrophobicailly modified cellulose-derivative, its preparation and use in the production...
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6303000 |
Paper making process utilizing a reactive cationic starch composition
A method for manufacturing paper with improved strength by introducing into the paper pulp in the wet end of a paper making process an aqueous starch dispersion of a gelatinized cationic starch and...
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6296696 |
One-pass method for preparing paper size emulsions
A one-pass, non-tolerance dependent method for preparing paper size emulsions comprising an aqueous emulsion of a substituted cyclic dicarboxylic anhydride, a colloidal stabilizer, and a surfactant...
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6287423 |
Paper composition for improved sheet properties
Novel polymers are provided having phosphonated and sulphonated substituent groups such that the polymers is multifunctional in its use. Optional amide substituents are used to reduce electrostatic...
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6280570 |
Method of manufacturing a soft, bulky single-ply absorbent paper having a serpentine configuration
The present invention relates to a process of making a soft, thick, single-ply, absorbent paper in the form of a bathroom tissue, facial tissue, or napkin wherein the cellulosic fibers incorporated...
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6270627 |
Use of colloidal borosilicates in the production of paper
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...
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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...
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6241853 |
High wet and dry strength paper product
A soft, flexible yet strong paper product is provided from the unique configuration of particular pulp types, cationic wet strength resins, and anionic processing aids.
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6238520 |
Manufacture of paper
Starch is added to the thinstock in a papermaking process in the form of a coagulated slurry containing undissolved starch particles, cationic polymeric flocculant and anionic microparticulate...
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6238521 |
Use of diallyldimethylammonium chloride acrylamide dispersion copolymer in a papermaking process
A papermaking process consisting essentially of: forming an aqueous cellulosic papermaking slurry; adding to the slurry certain additives, with said certain additives selected from the group...
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6235835 |
Polymer-modified anionic starch, method for its production, and its use
Starch is modified with at least one cationic polymer P) and the modified starch is prepared by a process in which a) an anionically modified starch A) is reacted with a cationic polymer P) or ...
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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...
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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...
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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...
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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....
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6217709 |
Cationic starch/cationic galactomannan gum blends as strength and drainage aids
A composition comprising cationic starch, cationic galactomannan gum (such as cationic guar, locust bean and fenugreek gum) and acid suitable as drainage aid and strength additive in papermaking.
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6214102 |
Bonding of ceramic fibers
A method of vacuum forming of aqueous, fibrous slurries and products produced thereby are disclosed. The method entails forming an aqueous slurry of ceramic fiber, cationic starch and silica sol....
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6210475 |
Use of hydroxyalkylated starches for improved emulsification of sizing agents
The present invention is directed to paper sizing emulsions, a method of making sizing emulsions, a method of sizing paper products, such as paper and board, and paper or board made using the...
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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...
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6193843 |
Cationic polysaccharides and reagents for their preparation
Cationic polysaccharide derivatives are prepared by reacting a polysaccharide with a polycationic reagent having one polysaccharide reactive group and at least two cationic groups. Suitable...
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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...
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6193844 |
Method for making paper using microparticles
A microparticle composition for paper making includes finely divided particles of a water insoluble solid such as amorphous sodium aluminosilicate, and having an anionic charge of at least 20...
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6187144 |
Method for sizing paper
A method for internal sizing of paper using cationic starch is provided. The starch used is cationized with a mixture of epichlorhydrin, trimethylamine, and mono-or dimethylamine or...
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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...
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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....
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6174412 |
Cotton linter tissue products and method for preparing same
A soft, bright and strong tissue paper product and a process for preparing such a tissue paper product is provided. The inventive tissue paper product is prepared from raw cotton linter fibers and...
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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...
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6165320 |
Method of sizing
This invention relates to a method of sizing paper comprising use of a sizing composition comprising: (a) at least one thermoplastic resin selected from the group consisting of thermoplastic rosins...
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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...
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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...
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6149831 |
Perlite-based insulation board
An insulation board suitable for use as a roof insulating board has a density between about 8 and about 15 pounds per cubic foot; a MOR/density ratio of at least 10.5 to 1 and includes, by dry...
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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...
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6139688 |
Chitosan-coated pulp a paper using the pulp, and a process for making them
A coated aramid fiber is disclosed wherein the coating is a small amount of chitosan and the coated fiber is useful in manufacture of an improved friction paper. An improved friction paper is,...
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6132558 |
Process for producing paper and cardboard
Paper and cardboard are produced by draining pulps, with sheet formation and drying of the sheets, by a process in which first (a) polyethyleneimines having a molar mass M w of more than...
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6123811 |
Method of manufacturing aqueous paper pulp for water soluble packages
An aqueous slurry for manufacturing water soluble or dispersible paper for use in medical device packaging. The slurry has a solid component consisting of methylcellulose and paper pulp. The slurry...
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6114417 |
Paper sizing agents and methods
Sizing agents comprised of dispersed synthetic polymers in an aqueous solution are provided, as well as methods for making these sizing agents and methods for using these sizing agents to size...
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6113741 |
Process for the production of paper
The invention relates to a process for the production of paper on a paper machine containing a dilution headbox in which a main aqueous flow containing cellulosic fibres and filler is mixed in said...
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6090242 |
Method of improvement strength of papers
Novel polymers are provided having phosphonated and sulphonated substituent groups such that the polymer is multifunctional in its use. Optional amide substituent are used to reduce electrostatic...
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6071379 |
Papermaking process utilizing hydrophilic dispersion polymers of diallyldimethyl ammonium chloride and acrylamide as retention and drainage aids
A method for improving retention and drainage performance in a papermaking process is disclosed. The method comprises forming an aqueous cellulosic papermaking slurry, adding an effective amount of...
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6059928 |
Prewettable high softness paper product having temporary wet strength
A paper product and a method of making a paper product with a glabrous surface and adapted for use either dry or for use in a manually pre-moistened condition. The paper product having temporary...
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6048439 |
Modified rosin emulsion
The invention disclosed herein is directed to a modified rosin emulsion, to methods for making the modified emulsion and to uses for the emulsion. The modified emulsion of the invention is made by...
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6033525 |
Modified cationic starch composition for removing particles from aqueous dispersions
Modified starches prepared by cooking an amphoteric or cationic starch and certain polyacrylamides have improved performance in paper making if a soluble aluminum compound also is present.
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6030443 |
Paper coating composition with improved optical brightener carriers
A paper coating composition has therein an optical brightening agent (OBA) and a water-soluble non-ionic polysaccharide derivative, exhibiting a solution viscosity in water of less than 1500 cps...
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6022450 |
Paper and cardboard comprising starch- and protein-containing material
Paper and cardboard containing starch and protein fractions of flour having improved strength, stiffness and surface properties, wherein the starch and protein fractions are subjected to a...
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6001166 |
Aqueous alkyldiketene dispersions and their use as size for paper
Aqueous alkyldiketene dispersions comprising an alkyldiketene, cationic starch having an amylopectic content of at least 95% by weight and as anionic dispersants (a) from 0.05 to 1.0% by weight...
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5997692 |
Profiling wet end starch applicator
A system for applying a suspension of uncooked starch particles in water to a web on a forming wire includes a source of such suspension and a source of dilution water, an application die...
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5993603 |
Transparentized paper
Transparentized paper is prepared by impregnating a paper web with a solution of a sucrose acetate isobutyrate in a lower alcohol and removing the residual alcohol. The preferred paper is 100%...
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