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| Number | Title | Issue Date |
| 6380295 | Clay/organic chemical compositions useful as additives to polymer, plastic and resin matrices to produce nanocomposites and nanocomposites containing such compositions This invention is of a hybrid organoclay that consists of an organic chemical/phyllosilicate clay intercalate that has been ion-exchanged with quaternary ammonium compounds. Since this hybrid organoclay is hydrophobic, it can be washed in water to remove ... | 04/30/2002 |
| 6187719 | Less temperature dependent drilling fluids for use in deep water and directional drilling and processes for providing less temperature dependent rheological properties to such drilling fluids This invention is a process for improving the rheological properties of oil well drilling fluids particularly useful for oil-based invert emulsion types of drilling fluids. The process is particularly useful when drilling in deep water from an off-shore d... | 02/13/2001 |
| 6159906 | Oil well drilling fluids with improved anti-settling properties and methods of providing anti-settling properties to oil well drilling fluids An improved drilling fluid with enhanced anti-settling properties useful for oil well drilling systems is described. The invention includes a process for providing anti-settling properties to oil invert (i.e., water in oil emulsion) based fluids. The dril... | 12/12/2000 |
| 6130256 | Organoclay thickener compatible with system to be thickened An organophilic clay thickener for natural oil systems comprising the reaction product of a smectite-type clay and an organic cation in an amount of from about 75% to about 150% of the cation exchange capacity of the smectite-type clay. Said organophilic ... | 10/10/2000 |
| 6111030 | Epoxy, polysulfide and cyanoacrylate composites utilizing activatable amino-polyamide curatives The present invention relates to cured compositions useful as adhesives and sealants formed by dispersing an amine-terminated polyamide curative into a base to form a composite and activating the composite forming the cured composition. Bases described in... | 08/29/2000 |
| 6069217 | Urethane-acrylic copolymer thickening compositions for aqueous systems Thickening composition are produced by linking a polyurethane comprising polyisocyanates, polyether polyols, modifying agents and capping agents with an alkali swellable copolymer comprising ethylenically unsaturated carboxylic acid monomers and nonionic ... | 05/30/2000 |
| 6043300 | Liquid rheological additives for non-aqueous systems and non-aqueous systems containing such liquid rheological additives A liquid, pourable 100% active rheological additive especially useful for thickening non-aqueous compositions is described. The additive, which exists in a pourable form at up to a 100% as a rheologically active composition, exhibits excellent thickening ... | 03/28/2000 |
| 6020407 | Super dispersable thickening composition for aqueous systems and a method of thickening said aqueous systems An improved thickening composition for aqueous systems including latex paints and coatings is described. The substantially anhydrous composition comprises in specified ratios a solid thickener polymer, and one or more surfactants. The solid thickener poly... | 02/01/2000 |
| 5973063 | Polyurethane thickeners useful for clear and high gloss aqueous based systems a process for providing rheological properties to clear aqeous-based systems using such thickeners and clear aqueous-based systems containing such thickeners The present invention relates to improved thickening compositions, often referred to as Theological additives, used to provide viscosity control, flow, leveling and other rheological properties to clear aqueous systems such as automotive clear-coat paints... | 10/26/1999 |
| 5939475 | Organic fluid systems containing clay/polyamide compositions A novel pourable organophilic clay polyamide composition useful as a rheological additive for organic fluid system comprising a) from about 5 to 15 weight percent of an organophilicly modified smectite-type clay, b) from about 25 to about 35 weight percent of ... | 08/17/1999 |
| 5863975 | Aqueous construction compositions with improved water retention properties and a process for providing water retention properties to aqueous construction compositions Water retention additives for aqueous construction systems including joint compounds are described which are the reaction product of monomers comprising carboxylic acid monomers, nonionic vinyl monomers and specific surfactant monomers. Processes for maki... | 01/26/1999 |
| 5861099 | Process for the filtration of suspensions containing sulfur To improve the separation of dispersedly precipitated sulfur from a washing solution used in the oxidative washing of hydrogen sulfide containing waste gases, the suspension is heated before filtration to about 45° C. to 70° C. Such heating causes the s... | 01/19/1999 |
| 5849356 | Method for deicing highways using starch-containing compositions and starch-containing compositions especially designed for deicing highways The invention hereof is a new highway deicing additive and a method for deicing asphalt highways. It has been discovered that a small amount of starch added to the salt/water sprayed on highways provides the unexpected property of retaining salt particles... | 12/15/1998 |
| 5759938 | Process for producing organoclays with quaternary ammonium compositions made using non volatile diluents Quaternary ammonium compositions are described which are made using diluents including soya bean oil, caster oil, mineral oils, isoparaffin/naphthenic and coconut oil. Such diluents remain as diluents in the final product and generally have a vapor pressu... | 06/02/1998 |
| 5749949 | Anti-abrasion ink additives and printing inks containing such additives An improved anti-abrasion/slip ink additive is disclosed comprising a mixture of sintered polytetrafluoroethylene and pharmaceutical grade petrolatum. As an alternative, additional material, such as phenolic resins and oils can be added to the mixture. Th... | 05/12/1998 |
| 5735943 | Rheological additives for asphalt and other organic systems comprising one or more organoclays and fibrous material, a process for producing such additives and organic systems containing such additives The present invention involves the discovery that an organoclay made by the reaction of smectite day and a quaternary ammonium compound (quat) can be mixed with fibrous material such as wastepaper pulp to form a unique theological additive for organic flu... | 04/07/1998 |
| 5725805 | Composition of matter useful as an oil spill flocculating agent An organoclay made by the reaction of smectite clay and a quaternary ammonium compound derived from an oil having 50% or more of its carbon chain lengths consisting of C14 or lower is described as an effective oil spill remediation agent. Oils ... | 03/10/1998 |
| 5723653 | Liquid rheological additives providing rheological properties to non-aqueous systems A liquid, pourable 100% active rheological additive especially useful for thickening organic compositions which in one aspect comprises an active hydrogen containing compound such as a polyol, one or more polycarboxylic acids or isocynanates, and a functi... | 03/03/1998 |
| 5718841 | Organoclay compositions manufactured with organic acid derived ester quaternary ammonium compounds A novel organophilic clay comprising the reaction product of: (a) a smectite-type clay; and (b) a quaternary ammonium compound or compounds selected from the group consisting of: ##STR1## wherein R1 is an unsaturated alkyl-ester group having 8 ... | 02/17/1998 |
| 5710110 | Oil well drilling fluids, oil well drilling fluid anti-settling and method of providing anti-setting properties to oil well drilling fluids An improved drilling fluid with enhanced anti-settling properties useful for all types of drilling systems is described. The invention includes a process for providing anti-settling properties to both oil and invert oil (i.e., water in oil emulsion) based... | 01/20/1998 |
| 5710108 | Biopolymer/oil suspension compositions utilized in aqueous-based fluids used in the oil service industry including completion and drilling fluids The invention involves biopolymer/oil suspension compositions for the oil service industry, most particularly drilling and completion fluids, which provide such fluids a variety of desirable properties. Biopolymers include water soluble polymers and water... | 01/20/1998 |
| 5696292 | Process for producing quarternary ammonium compounds Process for the preparation of quaternary ammonium compounds, by preparing a mixture of a tertiary amine and a liquid reaction vehicle and adding an alkyl halide to the mixture to produce a quaternary ammonium halide, the liquid reaction medium being a li... | 12/09/1997 |
| 5667694 | Process for the removal of heavy metals from aqueous systems using organoclays This invention relates to a process for removing dissolved heavy metals including lead and radioactive contaminants from contaminated aqueous systems including aqueous soil systems. Such systems have resulted from Department of Defense activities and chem... | 09/16/1997 |
| 5634969 | Organoclay compositions Quaternary ammonium compositions are described which are made using diluents including soya bean oil, caster oil, mineral oils, isoparaffin/naphthenic and coconut oil. Such diluents remain as diluents in the final product and generally have a vapor pressu... | 06/03/1997 |
| 5591796 | Pumpable anti-abrasion ink additives and printing inks containing such additives An improved pumpable anti-abrasion/slip ink additive is disclosed comprising a mixture of polytetrafluoroethylene and polyalphaolefin. As an alternative, additional material, such as phenolic resins and oils can be added to the mixture. The additives perm... | 01/07/1997 |
| 5558777 | Oil spill flocculating agent and method of remediating oil spills An organoclay made by the reaction of smectite clay and a quaternary ammonium compound derived from an oil having 50% or more of its carbon chain lengths consisting of C14 or lower is described as an effective oil spill remediation agent. Oils ... | 09/24/1996 |
| 5536871 | Pourable liquid polyesteramide rheological additives and the use thereof A liquid, pourable rheological additive expecially useful for thickening liquid organic compositions which comprises the reaction product of a defined polyalkoxylated nitrogen-containing compound, polycarboxylic acid and a liquid diamine. The additive, wh... | 07/16/1996 |
| 5510452 | Pourable liquid polyesteramide rheological additives and the use thererof A liquid, pourable rheological additive especially useful for thickening organic and solvent-based compositions which in one aspect comprises an alkoxylated nitrogen-containing compound, polycarboxylic acid, and a functional chain ending unit. The additiv... | 04/23/1996 |
| 5429999 | Organoclay compositions containing two or more cations and one or more organic anions, their preparation and use in non-aqueous systems A novel organophilic clay gellant comprising the reaction product of: (a) a smectite clay having a cation exchange capacity of at least 75 milliequivalents per 100 grams of natural clay without impurities; (b) a first organic cation in an amount of from about 75% t... | 07/04/1995 |
| 5425806 | Pourable water dispersible thickening composition for aqueous systems and a method of thickening said aqueous systems A pourable liquid thickening composition for aqueous systems including latex coatings is described. The composition comprises in specified ratios an associative thickener polymer, water and one or more surfactants. Associate thickener polymers include pol... | 06/20/1995 |
| 5416158 | Crosslinked carboxylic copolymers useful as rheological additives in personal care and pharmaceutical products The invention relates to crosslinked carboxylic copolymers comprising an unsaturated carboxylic acid; a comonomer containing a polymerizable ethylenically unsaturated group, a crosslinking monomer selected from the group consisting of triallylisocyanurate... | 05/16/1995 |
| 5407477 | Thixotropic organoclay additive for highly viscous system Improved organophilic clay gellants for highly viscous systems such as asphalt and creosote can be prepared by a process wherein the smectite-type clay is gently dried and/or subjected to minimum or no grinding. The organophilic clay agent may be used to ... | 04/18/1995 |
| 5393510 | High solids content titanium dioxide suspension A finely divided chloride process titanium dioxide prepared without the use of a dispersing agent. The slurry is dewatered via filtration, and the resulting filter cake is made flowable with an anionic dispersing agent. In order to attain a filter cake wi... | 02/28/1995 |
| 5389200 | Process for removing inorganic components that form ash on ignition and oily waste from paper during recycling A process for treating wastepaper to remove oily waste and inorganic components, which comprises: (a) forming an organoclay treating composition in a wastepaper aqueous system; (b) contacting the wastepaper aqueous system with an amount of the organoclay ... | 02/14/1995 |
| 5374687 | Anti-settling agents for aqueous coating compositions A pourable, liquid antisettling composition comprises at least one low molecular weight copolymer of ethylene and an alpha, beta-ethylenically unsaturated carboxylic acid that has been neutralized with a neutralizing agent and water. The composition can b... | 12/20/1994 |
| 5358562 | Organoclay rheological additive for clear systems Organoclays made from smectite-type clays are described as rheological additives for clear systems including clear coat paints, lacquers, varnishes and personal care products. Such additives impart desirable properties to such systems and do not adversely... | 10/25/1994 |
| 5349011 | Polyamide ester rheological additive, a solution containing the additive and thickened compositions containing the additive A polyamide (or oligomeric amide) ester rheological additive especially for organic solvent-based compositions comprises the reaction product of a defined polycarboxylic acid, a diamine, an alkoxylated polyol and a capping agent. The additive exhibits exc... | 09/20/1994 |
| 5340390 | Rheological additive comprising derivatives of castor oil A theological additive especially for liquid organic systems containing a castor-oil derivative with hydroxyl values below that appearing in nature. The additive may also contain clays and other extenders. The preferred derivative is castor wax. The addit... | 08/23/1994 |
| 5336647 | Organoclay compositions prepared with a mixture of two organic cations and their use in non-aqueous systems An organophilic clay comprising the reaction product of: (a) a smectite-type clay; (b) a first organic cation in an amount of from about 75% to about 150% of the cation exchange capacity of the smectite-type clay; and (c) a second organic cation provided by a polya... | 08/09/1994 |
| 5336372 | Process for deinking wastepaper utilizing organoclays formed in situ A process for deinking wastepaper, which comprises: (a) forming an organoclay deinking agent in an aqueous system; (b) contacting ink from wastepaper in the aqueous system with an amount of the organoclay deinking agent effective to deink the wastepaper; ... | 08/09/1994 |
