Abstract: A polymer having a weight average molecular weight ranging from between about 1,000 to about 10,000,000 which polymer contains at least 5 mole percent of a pendant functional group represented by: ##STR1## and mixtures thereof; wherein R' is chosen from the group consisting of H, and lower linear or branched alkyl groups containing from one to six carbon atoms; and X is an anionic gegenion, present in an electroneutralizing amount.
Abstract: Pendant amide-containing polymers may be modified in such a way to achieve substituted pendant amide groups described by the structure: ##STR1## wherein: R is chosen from the group consisting of hydrogen and lower alkyl (C.sub.1 -C.sub.4) groups,R.sup.1 is a multivalent hydrocarbonaceous bridging group containing from 1-20 carbon atoms,X is a tertiary amine or a quaternary ammonium salt functional group,Y is chosen from the group consisting of --OR"', and ##STR2## and mixtures thereof, and whereinR'" is chosen from the group consisting of hydrogen, alkyl groups, aryl alkyl, aryl groups and the like,q ranges from 0-50,m ranges from 0-24,n ranges from 0-24, provided that the sum of m plus n is at least 1.Processes for achieving modified polymers having the above functional group is also disclosed.
Abstract: The soluble manganese species can be maintained in aqueous systems in the presence of halogen species by treating the waters with certain water-soluble, nitrogen containing compositions.
Abstract: An improved method for extracting copper from copper minerals by heap leaching with dilute sulfuric acid which comprises agglomerating the copper mineral fines prior to their being formed into an heap with an agglomerating agent comprising an anionic acrylamide polymer which contains at least 5 mole percent of carboxylate or sulfonate groups and has a molecular weight of least 100,000.
Abstract: An improved paper making filler composition is comprised of the combination of a paper making pigment admixed with a cationic water soluble polymer in an aqueous dispersion, wherein the cationic water soluble polymer is present in said dispersion in the amount of from 0.1 to 2.0 weight percent based on said pigment, the cationic water soluble polymer being selected from the group consisting of polymers comprised of at least fifty percent by weight of repeating units consisting of a quaternary ammonium salt moiety and from 2 to 10 carbons, wherein the carbons form alkyl or aryl moieties or combinations thereof, may be substituted with hydroxy, amine, or halide, and polyaluminum chloride and mixtures thereof.
Abstract: A corrosion inhibitor composition for hydrocarbon fuels comprising a C.sub.10 -C.sub.24 alkenyl succinic anhydride esterified with between 0.5-1.5 moles of a water-soluble glycol and then neutralized with an amine.The invention also contemplates improved hydrocarbon fuels which comprise a major portion of such fuels which contain small quantities of the above described composition.
Abstract: A method for the control of marine fouling in salt or brackish water by a combination of a chlorine solution and a bromide salt such as an alkali metal bromide and about 1-10% of a biodispersant. In the preferred embodiment, the bromide salt is combined with a chlorine solution in the ratio of about 0.25 to about 1.25 equivalents.
Type:
Grant
Filed:
July 17, 1987
Date of Patent:
October 10, 1989
Assignee:
Nalco Chemical Company
Inventors:
Ronald H. Schild, Sandra Koeplin-Gall, Gregory C. Broxterman
Abstract: An aqueous solution blend of cationic metal salt and anionic vinyl polymer may be prepared. A composition comprising the combination of a cationic metal salt, anionic vinyl polymer, and water may be used in water clarification process.
Abstract: The present invention is directed to a process for stabilizing iron hydr(oxide) in aqueous systems which comprises adding to an aqueous system in which the water contains or will contain soluble iron a polymer which contains pendant N-substituted amide functionality, including amide substituted with sulfoalkyl wherein the alkyl is of 1 to 3 carbon atoms, sulfophenyl, or such groups substituted further with (poly)hydroxy.
Type:
Grant
Filed:
February 26, 1988
Date of Patent:
September 26, 1989
Assignee:
Nalco Chemical Company
Inventors:
John E. Hoots, Kenneth P. Fivizzani, Roy I. Kaplan
Abstract: A method of improving the SO.sub.2 scrubbing efficiency of flue gas desulfurization scrubbers which comprises conducting the scrubbing operation in such scrubbers in the presence of an oil-soluble surfactant.
Abstract: A method of preventing the interaction of cationic softeners coated upon the surfaces of glass fibers with anionic polymers contained in aqueous baths used in forming the glass fibers into mats which comprises treating the fiber with at least 3 parts per million, of a water-soluble anionic vinyl polymer having a molecular weight range of from 500-50,000.
Abstract: A water clarification process wherein solids are separated by filtration through a porous septum utilizes as a filter precoat a coating of keratin-composition in the form of particles wherein at least 75 weight percent of the particles have a particle size no greater than 2.0 mm. In preferred embodiment, the material to be filtered is first treated with a combination of an organic polymeric flocculant and an organic polymer coagulant.
Abstract: A carboxylic acid which has a pK.sub.a within the range of 2 to 7 and the ability to increase the effective alkalinity of fly ash for flue gas desulfurization. Carboxylic acid may be combined with adjuvants. Generally carboxylic acids with dispersant properties are preferred. Adjuvants which enhance the dispersant qualities of carboxylic acid are desirable.
Abstract: A concentrated lapping composition having the following makeup:______________________________________ Ingredient % by Weight ______________________________________ Finely divided inorganic 5-70 abrasive Carboxylic acid dispersant 0.1-1 polymer having a molecular weight of from 500-50,000 Lubricant 0.5-29 ______________________________________said lapping composition having its pH adjusted to greater than 8.5 in order to afford an improved lapping rate.
Abstract: Polyacrylic acid polymers are modified with hydroxylamine to convert a portion of the acrylic acid groups in the polymer to hydroxamic acid groups. The process requires utiization of a pH between 1-6 and a temperature ranging between 70.degree.-150.degree. C.
Type:
Grant
Filed:
March 22, 1989
Date of Patent:
September 19, 1989
Assignee:
Nalco Chemical Company
Inventors:
John W. Sparapany, Dodd W. Fong, Josepha M. Fu
Abstract: Water soluble low molecular weight cationic polymeric coagulants in combination with colloidal silica are excellent paint detackification agents for treating paint spray booth waters which are contaminated with paint particles.
Abstract: Detergents for hydrocarbon fuels, and hydrocarbon fuels containing detergents are provided wherein the detergent is comprised of an alkenylsuccinimide prepared by reacting an alkenylsuccinic acid or anhydride with a mixture of amines. The alkenyl substituent is substantially derived from an olefin having a carbon chain or from 8 to 10 carbons or mixtures thereof.
Abstract: Method for dewatering sewage sludge with the aid of organic polymeric flocculating agents (polyelectrolytes) made preferably by emulsion polymerization. To obtain optimum dewatering results, a substantial amount of the aqueous phase of the sludge is removed by decantation after flocculant addition prior to the dewatering treatment proper. The flocculated and thickened sludge may then be dewatered much more quickly with the dewatering behavior improved additionally by causing a reactivating flocculation to take place on the delivery side of the sludge feed pump. The Figures show a preferred embodiment of the inventive sludge dewatering system using a recessed plate press.
Type:
Grant
Filed:
September 3, 1987
Date of Patent:
August 29, 1989
Assignee:
Nalco Chemical Company
Inventors:
Josef Lehmkuhl, Ulrich Nikesch, Kurt Presslein
Abstract: A method of detackifying oversprayed paints chosen from the group consisting of high solids enamels, clear coats, two-phase urethane paints, and water or solvent borne base coats which comprises the contact of said oversprayed paint with an oil-in-water emulsion having:(a) 1-50 weight percent of a hydrocarbon oily liquid having a boiling point of at least 150.degree. C.;(b) 0.1-25 weight percent, based on the oily liquid, of an oil-in-water emulsifier;(c) the remainder, water;which emulsion has a pH of from 7.5-12.0 and then detackifying through said contact within a paint spray booth to form a detackified oversprayed paint particulate and then, collecting and dispersing said detackified paint particulate within the oil-in-water emulsion, thereby forming a spent oil-in-water emulsion containing at least 5 parts of detackified paint particulate per 100 parts of hydrocarbon oily liquid contained in said spent oil-in-water emulsion.
Abstract: A lubricating composition for use in slicing or cutting silicon wafers. The composition includes a soap, a phosphorous containing compound, and an ethylene oxide-propylene oxide polymer. The phosphorous compound is a low temperature, extreme pressure lubricant. The ethylene oxide propylene oxide polymer is a high temperature, extreme pressure lubricant. Suitable soaps include C6-C18 fatty acids reacted with triethanolamine or aminoethanolamine. Additionally, biocides or fungicides may be added. Also an antifoam and a complexing aid such as EDTA may be used.