Assignee: Hercules Incorporated

Location: Wilmington, DE
No. of patents: 1093

«First «Previous1 2 3 4 5 6 7 8 9 10 11 Next»Last»

Number	Title	Issue Date
8173799	Raw cotton linters composition, method of making, and uses thereof A composition of a loose mass of comminuted raw cotton linter fibers has a bulk density of at least 8 g/100 ml and at least 50% of the fibers in the mass passes through a US standard sieve size #10 (2 mm opening). This composition is made by obtaining a loose mass o...	05/08/2012
8163134	Copolymer blend compositions for use to increase paper filler content Methods for making a heterogeneous polymer blend comprising one or more anionic polymers, one or more cationic polymers, and one or more non-ionic polymers, which method comprises (a) adding to a non-neutral solution a first amount of polymerization initiator and on...	04/24/2012
8160305	Method and apparatus for measuring deposition of particulate contaminants in pulp and paper slurries A method and an apparatus for measuring the depositability of particulate contaminants present in a pulp or paper mill fluid stream and evaluating interactions of such particulate contaminants with other contaminants collects the particulate contaminants on a suitab...	04/17/2012
8101710	Membrane separation process for removing residuals from polyamine-epihalohydrin resins This invention relates to a process for preparing polyamine-epihalohydrin resins having reduced levels of residuals. The process comprises (a) charging a membrane separation apparatus with an aqueous composition comprising at least one polyamine-epihalohydrin resin,...	01/24/2012
8076279	Cleansing formulations comprising non-cellulosic polysaccharide with mixed cationic substituents The present invention is related to the use of a non-cellulosic cationically modified polysaccharide in cleaning compositions and more particularly to a surfactant based cleansing composition comprising, a surfactant, a non-cellulosic cationically modified polysacch...	12/13/2011
8052840	Pulping additives for a reduction of resin from Kraft pulp Compositions and methods for the removal of resin from wood chips processed in a Kraft pulping process are disclosed. The method is particularly useful for removing triterpene and triterpenoid resin. ...	11/08/2011
7998311	Enhanced surface sizing of paper Size press compositions and methods for producing sized paper products, including liner board, are disclosed. The size press compositions contain at least one non-reactive cationic surface sizing agent, at least one reactive sizing agent, at least one promoter resin...	08/16/2011
7981477	Hydroxyalkylcellulose as additive in pigmented metering size press coatings Pigmented coated paper is prepared by adding a water-soluble hydroxyalkylcellulose (HAC) with an alkyl moiety of 1 to 4 carbons, or water soluble alkylhydroxyalkylcellulose (AHAC) with an alkyl hydrophobe of 1 to 24 carbons to a pigmented wet coating formulation in ...	07/19/2011
7981247	Process for increasing the refiner production rate and/or decreasing the specific energy of pulping wood The present invention relates to processes for enhancing a refiner's production rate and/or reducing the specific energy consumption for a freeness target through the use of lubricant(s) or carrier(s)/frictionizer(s), respectively. ...	07/19/2011
7973004	Rheology modifier for aqueous surfactant-based formulations The present invention relates to aqueous formulations useful in useful in personal care, oral care, household and institutional applications which contain polymers comprised of water soluble synthetic backbone with covalently connected hydrophobic ends can deliver �...	07/05/2011
7960497	Preparation of alkyl ketene dimers The embodiments of the process of the present invention relate to the preparation of alkyl ketene dimers (AKD), where the process combines at least one polyamine with a fatty acid chloride in a molar ratio of less than one mole of polyamine to one mole of fatty acid...	06/14/2011
7943705	Creping adhesives made from amine-terminated polyamidoamines Polyamidoamine (PAE) resins are prepared from polyamidoamine made with excess amine, which are reacted with a specifically defined amount of difunctional crosslinker. The amount of difunctional crosslinker used is based on the polyamidoamine amine number and reduced...	05/17/2011
7932349	Membrane separation process for removing residuals polyamine-epihalohydrin resins This invention relates to a process for preparing polyamine-epihalohydrin resins having reduced levels of residuals. The process comprises (a) charging a membrane separation apparatus with an aqueous composition comprising at least one polyamine-epihalohydrin resin,...	04/26/2011
7932309	Ether derivatives of raw cotton linters for water-borne coatings A water-borne coating composition containing an ether derivative of raw cotton linters (RCL), a latex polymer, and water in which the ether derivative RCL provides improved rheological properties when compared to analogous cellulose ether compounds produced from mor...	04/26/2011
7902312	Michael addition adducts as additives for paper and papermaking Several Michael addition adducts of vinylamines with α,β. -unsaturated alkyl carbonyl compounds including amides, esters and acids, particularly acrylamide are presented. Additionally, a process for producing these Michael addition adducts is described. These addu...	03/08/2011
7893115	Defoamer emulsion compositions for pulp mill applications An oil-in-water emulsion useful as a defoamer for pulp and paper mill applications is described. The defoamer has an oil blend (of a triglyceride oil or a mixture of triglyceride oils and silicone), a stabilizing agent (to make the oil blend stable in the emulsion),...	02/22/2011
7879917	Defoamers for pulp and papermaking applications A defoamer made from a composition that has at least one triglyceride oil or triglyceride oil mixture, at least one silicone, at least one silicone-triglyceride stabilizing agent, hydrophobic silica particles, optionally one or more surfactants and/or dispersants, a...	02/01/2011
7854800	Alkanolamine-stabilized dispersed rosin sizing agents and their preparation This invention teaches the stabilization a dispersion of rosin using an alkanolamine salt of the rosin. The stabilized dispersion is used as a sizing agent in papermaking processes. ...	12/21/2010
7851416	Oxidized guar for oilfield servicing fluids An oilfield servicing fluid composition containing an aldehyde guar produced by enzymatic oxidation of a non-derivatized, straight guar or of a guar derivative. The enzyme used to oxidize the guar to the aldehyde guar is galactose oxidase, which may be combined with...	12/14/2010
7828934	Reactive cationic resins for use as dry and wet strength agents in sulfite ion-containing papermaking systems This invention relates to resins useful for imparting strength to paper, the process of incorporating these resins into paper and the paper produced containing the resins. In particular the invention relates to resins useful for imparting dry-strength and wet-streng...	11/09/2010
7820060	Synergistic biocide and process for controlling growth of microorganisms Synergistic mixtures of haloamines and their use to control the growth of microorganisms in aqueous systems are disclosed. The method of using the synergistic mixtures entails adding an effective amount of a monohaloamine and an effective amount of a dihaloamine to ...	10/26/2010
7726592	Process for increasing the refiner production rate and/or decreasing the specific energy of pulping wood The present invention relates to processes for enhancing a refiner's production rate and/or reducing the specific energy consumption for a freeness target through the use of lubricant(s) or carrier(s)/frictionizer(s), respectively. ...	06/01/2010
7622427	Ethoxylated raw cotton linters for completion and workover fluids A completion and workover fluid composition comprising, water and at least one rheology modifier and/or fluid loss control agent, and at least one other ingredient selected from the group consisting of inorganic salts, shale inhibitors, corrosion inhibitor, biocide,...	11/24/2009
7615135	Retention and drainage aids The present invention describes polymeric retention and drainage aids for cellulosic fiber compositions and methods of use of the same. ...	11/10/2009
7589051	Cationic, oxidized polysaccharides in conditioning applications A cationic, oxidized polysaccharide or derivative thereof that has a mean average molecular weight (Mw) having a lower limit of 50,000 and an upper limit of 1,000,000 and an aldehyde functionality content of at least 0.001 meq/gram is used in personal care and house...	09/15/2009
7578904	Enzymatic press felt treatment Methods for reducing or inhibiting deposition on or within press felts to increase the effective life of the press felt and reduce or eliminate the need for batch cleaning are disclosed. The methods disclosed treat press felt while paper is being produced with compo...	08/25/2009
7562419	Process for purification of cotton linters An improved process for the purification of raw cotton linters includes the cutting of a first, second, third or mill run cut raw cotton linters to a particle size that passes through a 2,500 micrometer screen and then mechanically separating the linters into clean ...	07/21/2009
7550542	Colorant compatible synthetic thickener for paint A synthetic polymer has a water-soluble or water-swellable polymer backbone and terminal groups and/or intermediate groups of blocks of hydrophobes of alkyl- or aryl compounds containing a polymerizable cyclic monomer or a polymerizable double bond (or alkene) group...	06/23/2009
7534324	Felt and equipment surface conditioner Deposition of contamination by deposits of resinous material on paper making equipment is undesirable. This invention prevents or retards such contamination by treating the equipment, especially the press felts with a composition containing a polyoxyalkylene. surfac...	05/19/2009
7531591	Aqueous dispersion of poly(acetal-polyether) and its use in protective coatings An aqueous dispersion includes an associative thickener based on a hydrophobically modified poly(acetal- or ketal-polyether) (HM-PAPE) and at least one viscosity reducing agent selected from ethoxylated alcohols, ethoxylated acetyleneic diols, phosphate esters, dial...	05/12/2009
7507781	Anionic copolymers prepared in an inverse emulsion matrix 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...	03/24/2009
7429625	Inversion of inverse emulsion polymers A method to invert an inverse emulsion water compatible polymer product using a combination of surfactants that have specific chemical structures is disclosed. A combination, or blend, of two or more surfactants provides for an effective breaker system. The blend of...	09/30/2008
7396874	Cationic or amphoteric 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 cationic or amphoteric copolymer prepared via a water-in-oil polymerization technique that, absent a cross-linking agent, is characterized by a Huggins' constant (k′) determin...	07/08/2008
7384892	Water-based drilling fluids A water-based drilling fluid composition includes water and at least one rheology modifier and/or fluid loss control agent, and at least one other ingredient of polymeric additive, inorganic salts, dispersants, shale stabilizers, weighting agents, or finely divided ...	06/10/2008
7317053	Compositions for imparting desired properties to materials The present invention relates to aqueous compositions comprising component (A) which comprises at least one water-soluble component comprising at least one functional group that undergoes a crosslinking reaction, preferably upon drying and/or heating; component (B) ...	01/08/2008
7311878	Method and apparatus for producing synergistic biocide An apparatus and methods to produce synergistic mixtures (or combinations) of haloamines to control growth of microorganisms in aqueous systems are disclosed. The apparatus and methods to produce synergistic mixtures entails producing a batch quantity of a haloamine...	12/25/2007
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
7270727	Paper sized with a sizing agent and a selected sizing promoter Sized paper containing an amphoteric promoter resin that is a polymerization reaction product of a quaternary diallylammonium monomer, optionally a diallylammonium monomer, and an unsaturated organic acid is described. The method of sizing paper with such amphoteric...	09/18/2007
7271308	Process for isomerization of alpha olefins to internal olefins The present invention relates to embodiments for a process for the isomerization of at least one alpha olefin to an internal olefin via a multi-step process resulting in a mixture comprising alkene isomers and a low level of oligomers. According to the present inven...	09/18/2007
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

«First «Previous1 2 3 4 5 6 7 8 9 10 11 Next»Last»

PatentStorm

Quotables

PatentStorm News

Assignee: Hercules Incorporated