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| Number | Title | Issue Date |
| 8025767 | Wet strength enhancers for paper They are mixtures of (a) from 1 to 99.9% by weight of a water-soluble epihalohydrin-crosslinked polyamidoamine and (b) from 0.1 to 20% by weight of at least one other cationic polymer. ... | 09/27/2011 |
| 7767059 | Strong and dispersible paper products The invention relates to a flushable paper product comprising a fibrous substrate having (i) at least one strength region comprising a reacted cationic or a reacted nonionic strength agent and (ii) at least one dispersibility region, wherein the paper product has (a... | 08/03/2010 |
| 7625462 | Tissue products containing triggerable polymeric bonding agents Polymeric bonding agents having a “triggerable” bonding functionality and which are in the form of particles or fibers, are blended with papermaking fibers prior to formation of a tissue web. After the web is dewatered, and advantageously during or after drying,... | 12/01/2009 |
| 7566381 | Low odor binders curable at room temperature Topically-applied binder materials for imparting wet strength to soft, absorbent paper sheets, such as are useful as household paper towels and the like, include an epoxy-reactive polymer, such as a carboxyl-functional polymer, and an epoxy-functional polymer. These... | 07/28/2009 |
| 7431799 | Epichlorohydrin-based polymers containing primary amino groups used as additives in papermaking Disclosed is a method for manufacture and application of a polymeric papermaking additive, which can be used in paper manufacture as an agent for improving retention, drainage, product strength and paper machine operation. The additive according to this disclosure i... | 10/07/2008 |
| 7413631 | Opacifying composition for paper or paperboard, processes using same and paper or paperboard produced therefrom An agent for enhancing brightness and opaqueness in paperboard comprises a reaction product selected from the groups consisting of: A) an amide reaction product of a C12-C22 fatty acid, condensed with an amine selected from monoalkanol a... | 08/19/2008 |
| 7364641 | Manufacture of paper and paper board Process for making paper or paper board comprising, forming an aqueous cellulosic suspension, adding a retention system to the cellulosic suspension, draining the suspension on a screen to form a sheet and drying the sheet, wherein the retention system comprises a s... | 04/29/2008 |
| 7318881 | Process for sizing paper A process for sizing paper comprising adding to an aqueous suspension containing cellulosic fibers, and optional fillers, a sizing dispersion comprising a polymer having an aromatic group, and a sizing promoter comprising a polymer having an aromatic group, wherein ... | 01/15/2008 |
| 7303654 | Cellulosic product and process for its production The present invention relates to a process for the production of a cellulosic product which comprises (i) providing an aqueous cellulosic suspension; (ii) adding to the suspension a clay having 3R2 stacking; and (iii) dewatering the obtained suspension. T... | 12/04/2007 |
| 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 |
| 7285162 | Titanium dioxide pigment having improved light stability In various embodiments, methods and compositions are provided comprising titanium dioxide and silica spacers having improved light stability for use in paper, plastic and paints. ... | 10/23/2007 |
| 7282273 | Grease resistance and water resistance compositions and methods A method of improving grease and/or water resistance of a material is disclosed that comprises treating the material with wax and poly(vinyl alcohol) and optionally with a polyamine. Compositions for practicing the method and materials that have been treated by the ... | 10/16/2007 |
| 7282232 | Bonded fibrous sheet material The present invention refers to a method of producing a porous bonded fibrous sheet material comprising: (i) treating a porous fibrous substrate which is comprised of cellulosic fibers and which has a moisture content of less than 10% by weight with a gum and a cros... | 10/16/2007 |
| 7258763 | Temporary wet strength additives Temporary wet strength additives, more particularly, temporary wet strength additives comprising a polymer backbone, wherein the polymer backbone comprises a co-crosslinking monomeric unit, preferably a reversible co-crosslinking monomeric unit, especially in the pr... | 08/21/2007 |
| 7258764 | Soft and strong webs from highly refined cellulosic fibres Soft and strong cellulose-based fibrous web, comprises a) cellulosic fibres having a freeness value of more than 26° SR measured according to DIN-ISO 5267/1 (March 1999), b) a water-soluble cationic polymer, ... | 08/21/2007 |
| 7252740 | (per) fluoropolyether carboxylic acids and use thereof for the oleo-repellent paper sizing Carboxylic acids comprising perfluoropolyether chains, of formula: T1—CFW1—O—Rf—CFW2—T2 (I) wherein T1, T2, equal to or different from each other, are sel... | 08/07/2007 |
| 7250448 | Anionic copolymers prepared in an inverse emulsion matrix and their use in preparing cellulosic fiber compositions A papermaking method and a composition which utilize, as a drainage aid, a water-soluble anionic copolymer prepared via a water-in-oil polymerization technique that, absent a cross-linking agent, is characterized by a Huggins' constant (k′) determined in 0.01M NaC... | 07/31/2007 |
| 7235284 | Recording sheets for ink jet printing There is described a recording sheet for ink jet printing comprising a polyethylene coated paper support having coated onto the front side of said support one ink receiving layer comprising a mixture of gelatin and rice starch. ... | 06/26/2007 |
| 7229529 | Low odor binders curable at room temperature Topically-applied binder materials for imparting wet strength to soft, absorbent paper sheets, such as are useful as household paper towels and the like, include an epoxy-reactive polymer, such as a carboxyl-functional polymer, and an epoxy-functional polymer. These... | 06/12/2007 |
| 7217339 | Fibrous structures exhibiting improved wet strength properties Fibrous structures and/or sanitary tissue products comprising such fibrous structures, more particularly to fibrous structures and/or sanitary tissue products that exhibit improved wet strength properties, especially temporary wet strength properties, as compared to... | 05/15/2007 |
| 7198841 | Paper having a cellulosic fiber layer treated with elementary particles A paper, board or non-woven product containing a fiber layer containing cellulosic fibers, plant fibers or other material suitable for making a paper, board or non-woven product. One surface of the fiber layer is treated with pigment particles. The web is treated wi... | 04/03/2007 |
| 7189454 | Carbon coated high luster materials A platy pigment substrate having a carbon-containing coating thereon is provided wherein the coating comprises a pyrolyzed carbon-containing ionic species. The products of the present invention may be used in any application where pearlescent pigments have been used... | 03/13/2007 |
| 7189307 | Low odor binders curable at room temperature Topically-applied binder materials for imparting wet strength to soft, absorbent paper sheets, such as are useful as household paper towels and the like, include an epoxy-reactive polymer, such as a carboxyl-functional polymer, and an epoxy-functional polymer. These... | 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 |
| 7169261 | Silica-based sols An aqueous sol containing silica-based particles which has an S-value within the range of from 10 to 45%, a viscosity within the range of from 5 to 40 cP, and a molar ratio of SiO2 to M2O, where M is alkali metal or ammonium, within the range o... | 01/30/2007 |
| 7125490 | Porous filter A filter has a longitudinal axis with an inner diameter defined by a hollow longitudinally extending center. The filter has fingers extend radially outwardly arcuately from the longitudinal axis. The fingers have base ends near the longitudinal axis and outer edges ... | 10/24/2006 |
| 7090745 | Method for increasing the strength of a cellulosic product A composition includes at least one hydrophilic polymer containing primary (—NH2) and/or secondary (—NHR) amine groups and at least one saccharide containing a reducible function. A method of increasing the strength of paper includes the step of conta... | 08/15/2006 |
| 7081512 | Treatment of resins to lower levels of CPD-producing species and improve gelation stability A process for treating a composition containing a polyamine-epihalohydrin resin that has a low level of CPD-producing species and good gelation stability is disclosed. A polyamine-epihalohydrin resin is prepared with a ratio of epihalohydrin:amine of less than about... | 07/25/2006 |
| 7060201 | Optical brighteners their composition their production and their use Optical brighteners (PAB) of formula wherein each n independently signifies 1 or 2, the group SO3M shown with the floating bond is linked ... | 06/13/2006 |
| 6998016 | Method of making a non compacted paper web containing refined long fiber using a charge controlled headbox and a single ply towel made by the process The present invention is a through-air-drying process for producing a fibrous web that possesses not only softness and absorbency but also strength. The method of the present invention monitors and controls the overall charge in the headbox. ... | 02/14/2006 |
| 6991707 | Polymeric creping adhesives and creping methods using same A method for manufacturing a creped fiber web is provided and includes providing a rotating cylindrical dryer surface, applying an ionene adhesive to the rotating cylindrical dryer surface to form an adhesive dryer surface, conveying a fiber web to the adhesive drye... | 01/31/2006 |
| 6979386 | Tissue products having increased absorbency A tissue product containing a cellulosic fibrous material and less than about 10 wt. % of a superabsorbent material (e.g., fibers, particles, etc.) is provided. In some instances, the superabsorbent material can absorb between about 100 to about 350 grams of an aque... | 12/27/2005 |
| 6962645 | Reticulated absorbent composite An absorbent composite (10) having a fibrous matrix that includes absorbent material is disclosed. The fibrous matrix defines voids (14) and passages between the voids, which are distributed throughout the composite. Absorbent material (18) is l... | 11/08/2005 |
| 6939443 | Anionic functional promoter and charge control agent The invention relates to a functional promoter comprising a water-soluble anionic polymer having a molecular weight of at least about 50,000 daltons and a molecular weight charge index value of at least about 10,000, and a cationic strength component. The invention ... | 09/06/2005 |
| 6916402 | Process for bonding chemical additives on to substrates containing cellulosic materials and products thereof Articles containing cellulose materials and treated with a chemical additive are disclosed. In accordance with the present invention, at least a portion of the cellulose containing the article is modified to include a first moiety. A chemical additive, such as softe... | 07/12/2005 |
| 6911116 | Cationically modified white pigments, their production and use Cationically modified white pigments (W) in particulate form, essentially consisting of a particulate inorganic white pigment (M) of a particle size in the range of 0,1 to 40 μm and an applied water soluble, cationic, crosslinked polymer (PA) containing ... | 06/28/2005 |
| 6908983 | Synthesis of high solids resins from amine terminated polyamides The present invention contemplates a process for forming polyaminoamide polymers formed by the reaction of a dibasic acid/ester with excess amounts of an amine; the intermediate polymer resulting therefrom; a process for synthesizing effective, high solids resins re... | 06/21/2005 |
| 6896769 | Modified condensation polymers containing azetidinium groups in conjunction with amphiphilic hydrocarbon moieties Modified condensation polymers containing azetidinium groups, such as polyamide epichlorohydrin (PAE) resins, can be combined with amphiphilic hydrocarbons containing polyethers into a single molecule to provide several potential benefits, depending upon the specifi... | 05/24/2005 |
| 6824649 | Method for increasing filler retention of cellulosic fiber sheets A method for increasing filler retention of cellulosic fiber sheets is disclosed. In the method, cellulosic fibers with increased anionic sites are treated with either positively charged filler particles and/or amphoteric filler particles or a cationic retention aid... | 11/30/2004 |
| 6808597 | Methods of making and using creping adhesives comprised of polyamine-epihalohydrin resin/poly(vinyl alcohol) mixtures Methods for making creping adhesives and using them in the creping of cellulosic fiber webs. The creping adhesives are a combination of polyamine-epihalohydrin and poly(vinyl alcohol). The method comprises the preparation and application of the creping adhesives to ... | 10/26/2004 |
