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Calgon Corporation Patents
Assignee:
Calgon Corporation
Address:
Pittsburgh, PA
No. of patents:
308
Patents:


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Patent Number Title Of Patent Date Issued
RE29595 Well cementing composition having improved flow properties containing a polyamido-sulfonic addit March 28, 1978
Aqueous hydraulic cement compositions containing polyamido-sulfonic compounds as flow-property-improving and turbulence-inducing additives and their use in cementing wells is disclosed.
D271544 Dispenser for fluid or semi-fluid materials November 29, 1983
D271450 Dispenser for fluid or semi-fluid materials November 22, 1983
6691715 Water soluble polymer composition and method of use February 17, 2004
Novel water soluble polymers in solution or water-in-oil emulsion form are disclosed containing quaternary ammonium monomers; and optionally (meth)acrylic acid or 2-(meth)acrylamido-2-methylpropane sulfonic acid; methylene bis-acryamide and the like; and a C.sub.1 -C.sub.3 alkyl (meth)
6656377 Inorganic composition, process of preparation and method of use December 2, 2003
A coagulant which is the reaction product of a trivalent metal salt, excluding chromium salts, an acid phosphorous compound and an aluminum hydroxy chloride, and a process for preparing such coagulant. This coagulant may be effectively used to remove suspended solids and various impu
6562194 Method of creping paper webs May 13, 2003
A non-oil-based release aid used in a creping process for releasing a paper web from a Yankee dryer in the manufacture of a paper product having a formula for its block version as follows:where R is a C.sub.8 to C.sub.20 alkyl or alkylaryl group, y plus z is greater than 20, and y is gre
6482776 Ampholyte polymer composition and method of use November 19, 2002
Novel branched or crosslinked polymers containing (meth)acrylamidopropyltrimethyl ammonium halide; (meth)acrylic acid or 2-(meth)acrylamido-2-methylpropane sulfonic acid; methylene bis-acryamide and the like; and a C.sub.4 -C.sub.22 alkyl (meth) acrylate and the use thereof in paperm
6414080 Inverse emulsion polymer and production thereof July 2, 2002
Disclosed herein is an inverse emulsion polymer composition comprising a copolymer or copolymer salt of N,N,-dimethylacrylamide and 2-acrylamido-2-methylpropane sulfonic acid or acid salts thereof, having a Brookfield viscosity of less than 20,000 Cps at 23.degree. C. and an active p
6365140 Modified starch solutions and their use in personal care April 2, 2002
Disclosed are novel aqueous modified starch solutions, such solutions can contain high levels of the modified starch and remain stable such that on standing, the solution does not form a precipitate, become a non pourable gel, separate or spoil due to attack from microorganisms. The use
6361801 Alkyl allyl amines and low voc hair styling compositions using same March 26, 2002
The present invention is directed to alkyl allyl amine monomers and their use as a polymerizate in a low VOC hair spray formulation. The hair spray formulation preferably includes a polymerizate of an alkyl allyl amine monomer, preferably an alkyl diallyl amine monomer alone or in combin
6346554 ASA size emulsification with a natural gum for paper products February 12, 2002
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, derivatized or modified. The alkenyl succinic anhydride size emulsion formed with the natura
6315910 Method for controlling snails using dialkyl diallyl ammonium polymers November 13, 2001
A method for controlling snails in aqueous systems which involves treating aqueous systems which contain snails or which are prone to snail infestation with an effective amount of a water-soluble dialkyl diallyl quaternary ammonium polymer (polyquat) is disclosed. A preferred polymer
6313198 Emulsion feed assembly and method November 6, 2001
The present invention is directed to a polymer feed system and a method of using the same wherein clogging of the polymer input line is avoided by the use of air to purge the system of any unwanted polymer or electrolyte. The purging avoids the contact of the water with the polymer and t
6310024 Rust and scale removal composition and process October 30, 2001
Disclosed in the present application is a composition that is useful for rust and/or corrosion removal that contains a reducing agent, a chelating agent, a surfactant, and a dispersant. Disclosed also are processes for using this composition in aqueous systems and metal surface treatment
6277242 Creping adhesive containing an admixture of PAE resins August 21, 2001
A creping adhesive for applying to a creping surface in the process for dry creping tissue and or towel paper is disclosed. The adhesive comprises a blend of at least two water-soluble cationic polyamide-epihalohydrin (PAE) resins. The first PAE resin has a mole ratio of epihalohydrin to
6248182 Mannich derivatives of epoxy-novolac resins and methods of using the same June 19, 2001
Compositions and methods for treating substrates are disclosed. The compositions are generally described as epoxy-novolac resins containing a Mannich derivatized bisphenol side chain. The methods, which comprise contacting the surface to be treated with these compositions, improve the
6184257 Composition of ferric chloride and a dialkyl diallyl ammonium polymer and process of preparing t February 6, 2001
The present invention provides a novel formulation in a composition comprising FeCl.sub.3 and a dialkyl diallyl ammonium polymer where the FeCl.sub.3 has been diluted with water prior to being mixed with the polymer providing a stable composition.
6139830 Methods for reducing deposit formation on surfaces October 31, 2000
A method for reducing formation of deposits on a surface in contact with an aqueous system includes applying to the surface a composition comprising a polyoxypropylene-polyoxyethylene block copolymer and a biocide. The composition optionally may also include a dispersant.
6126837 Method for removing suspended particles using mannich-derived polyethers October 3, 2000
Methods for removing suspended particles from a solution are disclosed. These methods generally comprise adding to the solution to be treated an effective amount of a composition comprising a Mannich derivatized polyether. The polyether is generally described as the condensation poly
6110995 Process for preparing novel high solids non-aqueous polymer compositions August 29, 2000
The use of falling-film evaporation and a concentration means such as centrifugal separation to dehydrate and concentrate a water-in-oil polymer emulsion or suspension is disclosed. In a preferred embodiment, a water-in-oil polymer composition containing less than about 25% active po
6110451 Synergistic combination of cationic and ampholytic polymers for cleansing and/or conditioning ke August 29, 2000
A keratin conditioning composition is disclosed that contains (a) a surfactant component that can contain anionic surfactants, amphoteric surfactants, cationic surfactants, nonionic surfactants and/or zwitterionic, (b) a water soluble, organic, ampholytic polymer conditioning agent,
6090905 Compositions and methods for controlling stickies July 18, 2000
Mannich-derivatized polyphenolic compositions prepared by the reaction of a phenolic compound having at least two phenol rings with an aldehyde and an amphoteric compound having both a basic moiety and an acidic moiety are disclosed. Methods for utilizing such compositions in the control
6090832 Process for making antimicrobial agents in aqueous dispersion form containing 2-(4-thiazolyl)-be July 18, 2000
Aqueous dispersions of 2-(4-thiazolyl)-benzimidazole (TBZ), alone or in combination with 1,2-dibromo-2,4-dicyanobutane (DBDCB), and processes for making the same, are disclosed. These processes generally comprise mixing a xanthan gum with water, adding TBZ and mixing until uniform. DBDCB
6080244 Composition and methods for cleaning surfaces June 27, 2000
Compositions and methods for cleaning metal and non-metal surfaces utilizing a nonionic surfactant and an enzyme are disclosed. A composition comprised of at least one nonionic surfactant and at least one enzyme and having a pH of between 6 and 9.5 is specifically disclosed. A method for
6069142 Synergistic antimicrobial combination of 4,5-dichloro-2-N-octyl-4-isothiazolin-3-one and a mixtu May 30, 2000
Synergistic antimicrobial combinations comprising 4,5-dichloro-2-N-octyl-4-isothiazolin-3-one and a mixture of a chlorinated isocyanurate and a bromide compound are disclosed. Methods for inhibiting microbial growth using these synergistic antimicrobial combinations are also disclose
6066315 Ampholyte polymers for use in personal care products May 23, 2000
Novel conditioning polymers containing (meth)acrylamidopropyltrimethyl ammonium chloride, meth(acrylic acid) or 2-(meth)acrylamido-2-methylpropane sulfonic acid and, optionally, a C.sub.1 -C.sub.22 alkyl (meth) acrylate and the use thereof in a cosmetically acceptable medium for the trea
6039965 Surfanctants for reducing bacterial adhesion onto surfaces March 21, 2000
A method for inhibiting microbial colonization of a surface in contact with an aqueous system is disclosed, which comprises adding to the system an amount of at least one compound including repeating ethylene oxide units.
6017399 Method for controlling and removing solid deposits from a surface of a component of a steam gene January 25, 2000
A method for controlling and removing solid deposits from a surface of at least one component of a steam generating system, wherein the solid deposits are formed from an impurity introduced into the steam generating system, is disclosed.
6004024 Emulsion feed assembly December 21, 1999
The present invention is directed to a polymer feed system and a method of using the same wherein clogging of the polymer input line is avoided by the use of air to purge the system of any unwanted polymer or electrolyte. The purging avoids the contact of the water with the polymer and t
5985934 Synergistic antimicrobial composition of 2,4,4'-trichloro-2'-hydroxydiphenyl ether and 1,2-d November 16, 1999
Synergistic antimicrobial combinations consisting essentially of comprising 2,4,4'-trichloro-2'-hydroxydiphenyl ether and 1,2-dibromo-2,4-dicyanobutane are disclosed. Methods for inhibiting microbial growth using these synergistic antimicrobial combinations are also disclosed.
5972433 Method for treatment of metal substrates using Mannich-derived polyethers October 26, 1999
Methods for treating metal substrates are disclosed. These methods, which comprise contacting the surface to be treated with a composition comprising a Mannich-derivatized polyether, improve the corrosion resistance and/or adhesion properties of the treated surface. Similar methods f
5948270 Method for reducing turbidity in laundry waste water September 7, 1999
A method for reducing turbidity in laundry waste water comprising the steps of treating said water with effective amounts of a first polymer comprised of a dialkyl diallyl ammonium halide containing (meth)acrylic acid moieties and a second anionic, nonionic or cationic acrylamide polymer
5879670 Ampholyte polymers for use in personal care products March 9, 1999
Novel conditioning polymers containing (meth)acrylamidopropyltrimethyl ammonium chloride, meth(acrylic acid) or 2-(meth)acrylamido-2-methylpropane sulfonic acid and, optionally, a C.sub.1 -C.sub.22 alkyl (meth) acrylate and the use thereof in a cosmetically acceptable medium for the
5874026 Method of forming corrosion inhibiting films with hydrogenated benzotriazole derivatives February 23, 1999
A method of use of a composition including either or both isomers of hydrogenated methylbenzotriazole, namely, 5-Methyl-1H-Benzotriazole or 4-Methyl-1H-Benzotriazole which have been at least about 50% hydrogenated, to form corrosion inhibiting films on metal surfaces in an aqueous en
5833364 Chemical delivery and on-site blending system for producing multiple products November 10, 1998
A chemical delivery and on-site blending system for producing multiple products is provided. Generally, chemical subcomponents are fed to a chemical blending system for making a multitude of products at the facility where the products are to be used. Also, a water line is connected t
5823670 Chemical delivery and on-site blending system for producing multiple products October 20, 1998
A chemical delivery and on-site blending system for producing multiple products is provided. Generally, chemical subcomponents are fed to a chemical blending system for making a multitude of products at the facility where the products are to be used. Also, a water line is connected t
5785730 Fertilizer and method for preparing the same July 28, 1998
A fertilizer comprising a dewatered solid agricultural nutrient is disclosed. A method for preparing this fertilizer is provided including the steps of providing a raw agricultural waste to be treated, adding to the raw agricultural waste an effective amount of a composition comprising
5776350 Separation of raw agricultural waste July 7, 1998
A method for separating raw agricultural waste into a liquid portion and a nutrient enriched solids portion is disclosed. This method includes providing raw agricultural waste to be treated, adding to the raw agricultural waste an effective amount of a composition comprising a quater
5772913 Aqueous system containing a synergistic combination for scale control June 30, 1998
An aqueous system containing scale forming salts including both calcium carbonate and calcium phosphate and characterized by high pH and high calcite concentrations which further contains a synergistic effective amount of a combination comprising (A) a polyether polyamino methylene p
5747342 Methods and apparatus for monitoring and controlling PH phosphate and sodium to phosphate ratio May 5, 1998
Methods and apparatus for monitoring and controlling pH, phosphate, and sodium to phosphate ratio in boiler systems operating with captive alkalinity chemistry are described. The methods for monitoring and controlling these parameters include the steps of determining the phosphate co
5746947 Alkylbenzotriazole compositions and the use thereof as copper and copper alloy corrosion inhibit May 5, 1998
An alkylbenzotriazole, in combination with mercaptobenzotriazole, tolyltriazole, benzotriazole and/or 1-phenyl-5-mercaptotetrazole, is used to inhibit the corrosion of metallic surfaces, particularly copper surfaces, in contact with an aqueous system. Systems and compositions are als
5730881 Method for treating oversprayed solvent-based paints March 24, 1998
An improved method for treating over-sprayed, solvent-based paints which comprises adding an effective amount of a chelating agent to the circulating water of a paint spray booth, thereby improving the dispersibillty of solvent-based paints, particularly in high-hardness waters.
5725780 Method for using novel high solids polymer compositions as flocculation aids March 10, 1998
A method for flocculating suspended solids from an aqueous system containing water and said suspended solids comprising adding to said aqueous system an effective amount of a flocculating agent, wherein said flocculating agent is a pourable non-aqueous, polymer composition containing
5709814 Aqueous system containing a synergistic phosphonate scale control combination January 20, 1998
An aqueous system containing scale forming salts including both calcium carbonate and calcium phosphate and characterized by high pH and high calcite concentrations which further contains a synergistic effective amount of a combination comprising (A) a polyether polyamino methylene p
5707529 Method for controlling scale in an aqueous system using a synergistic combination January 13, 1998
A method for inhibiting the formation, deposition and adherence of scale forming salts including calcium carbonate and calcium phosphate in an aqueous system having a pH of at least 8.5 and a calcite saturation level of at least 100 times the solubility limit of calcium as calcite, i
5702634 Aqueous system containing a synergistic combination including polyether polyamino methylene phos December 30, 1997
An aqueous system containing scale forming salts including both calcium carbonate and calcium phosphate and characterized by high pH and high calcite concentrations which further contains a synergistic effective amount of a combination comprising (A) a polyether polyamino methylene p
5700834 Synergistic antimicrobial composition of 1,2-dibromo-2,4-dicyanobutaneand alkylguanidine compoun December 23, 1997
Synergistic antimicrobial combinations comprising 1,2-dibromo-2,4-dicyanobutane and an alkylguanidine compound, preferably dodecylguanidine hydrochloride, are disclosed. Methods for inhibiting microbial growth using these synergistic antimicrobial combinations are also disclosed.
5677345 Synergistic antimicrobial composition of N-[(dichlorofluoromethyl)thio]-N',N'-dimethyl-N-phenyls October 14, 1997
Synergistic antimicrobial combinations comprising N-[(dichlorofluoromethyl)thio]-N',N'-dimethyl-N-phenylsulfamide and an alkylguanidine compound, preferably dodecylguanidine hydrochloride, are disclosed. Methods for inhibiting microbial growth using these synergistic antimicrobial co
5647956 Cellulosic, modified lignin and cationic polymer composition and process for making improved pap July 15, 1997
A composition comprising aqueous cellulosic furnish, a high molecular weight cationic polymer, and a modified lignin wherein the ratio of the cationic polymer to the modified lignin is from about 10:1 to 1:10 on an active basis is disclosed. A process employing this composition for makin
5641808 Synergistic antimicrobial composition of 1,2-dibromo-2,4-dicyanobutane and esters of parahydroxy June 24, 1997
Synergistic antimicrobial combinations comprising 1,2-dibromo-2,4-dicyanobutane and at least one ester of parahydroxybenzoic acid are disclosed. Methods for using these synergistic combinations to inhibit microbial growth are also disclosed.
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