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Betz Laboratories, Inc. Patents
Assignee:
Betz Laboratories, Inc.
Address:
Trevose, PA
No. of patents:
575
Patents:


1 2 3 4 5 6 7 8 9 10 11 12










Patent Number Title Of Patent Date Issued
RE29908 Process for clarification of oil-containing waste February 13, 1979
The present disclosure is directed to a process of separating oil from oil-containing wastewater which comprises treating the wastewater with a water-soluble cationic polymer obtained by the polymerization of an epihalohydrin with an alkylene polyamine having the formula ##STR1##
D337959 Fluid level probe mounting unit August 3, 1993
D275031 Liquid chemical container August 7, 1984
D273703 Stacked liquid chemical containers May 1, 1984
5658487 Polymeric dithiocarbamate acid salt compositions and method of use August 19, 1997
A contaminant precipitating composition and method are disclosed. The composition comprises a water soluble, branched, polydithiocarbamic acid salt effective for the purpose of precipitating contaminants from an aqueous solution. The method comprises adding an amount of the composition
5626718 Use of polymers in the recycled fiber washing/deinking process May 6, 1997
The present invention is directed to a method for increasing the retention on a washing/thickening device in an aqueous papermaking system. The method generally comprises adding to the furnish solids of the system an effective amount of a cationic polyacrylamide polymer.
5601754 Water treatment polymer containing poly[oxy-[(hydroxymethyl)-1,2-ethanediyl]] macromonomers and February 11, 1997
A polymer and method of controlling corrosion and the formation and deposition of scale imparting compounds in water systems is disclosed. The polymer has the general structure: ##STR1## wherein E.sup.1 comprises the repeat unit obtained after polymerization of one or more .alpha
5596130 Methods and compositions for reducing fouling deposit formation in jet engines January 21, 1997
Methods and compositions are provided for cleaning and inhibiting the formation of fouling deposits on jet engine components during the combustion of turbine combustion fuel oils. Methods and compositions are also provided for inhibiting the formation and emission of soot and smoke f
5565619 Methods and apparatus for monitoring water process equipment October 15, 1996
Methods and apparatus are provided for using tracers to monitor industrial process equipment to which liquid is added and from which liquid is removed. In preferred embodiments, the methods are directed to detecting water leakage in a boiler in which an aqueous temperature control liquid
5562863 Methods and compositions for inhibiting vinyl aromatic monomer polymerization October 8, 1996
Vinyl aromatic monomer polymerization methods utilizing a composition of 2,6-di-tert-butyl-4-methylphenol and a substituted benzoquinonediimide compound are disclosed. Preferably, the composition is employed in an amount of 1 part to 10,000 parts per million parts monomer during dist
5562862 Polybutene-based foam control composition for aqueous systems October 8, 1996
A stable defoamer composition and method of defoaming an aqueous system is disclosed. The composition comprises an alcohol alkoxylate, at least one surfactant having a melting point less than 20.degree. C., and a low HLB, ethylene oxide/propylene oxide block copolymer, said block copolym
5562833 Dual feed paint detackification program October 8, 1996
In a paint spray booth wherein water is used to collect oversprayed paint, a process is disclosed for detackifying and coagulating oversprayed paint by the independent and concurrent addition of specific amounts of specific anions and cationic polymers to the water system.
5562830 Calcium carbonate scale controlling method October 8, 1996
A method of inhibiting corrosion and scale formation and deposition in aqueous systems by adding a combination of a polyepoxysuccinic acid or salts thereof and a phosphonocarboxylic acid or salts thereof.
5562816 Tar dissolution process October 8, 1996
A Mannich reaction product of reactants selected from alkylated phenols, a polyamine and an aldehyde is employed to dissolve tar deposits in coke oven piping and transmission lines.
5560523 Apparatus for measuring and transferring liquid October 1, 1996
An apparatus for transferring a discrete, measured volume of liquid from a dispensing container to a liquid receptacle. The apparatus is comprised of a conduit having a solenoid valve, a measuring vessel and a pump. The solenoid valve controls fluid flow from a dispensing container to th
5556510 Method for inhibiting the deposition of organic contaminants in polp and papermaking processes September 17, 1996
A method of inhibiting the deposition of organic contaminants in a pulp and papermaking system comprising adding to the system an effective amount of a detackifying composition comprising a charged polymer and an oppositely charged surfactant, with the proviso that at least the polymer o
5556451 Oxygen induced corrosion inhibitor compositions September 17, 1996
Compositions and methods of using the compositions to inhibit oxygen induced corrosion of metal exposed to aqueous solutions are disclosed. The compositions include hydroxybenzoic acid in formulations with imidazoline, heavy aromatic naphtha, polymerized tall oil fatty acid, alkanols, di
5545438 Hydrophilic treatment for aluminum August 13, 1996
A hydrophilic coating for aluminum comprising a substantially chromium-free treatment including phosphoric acid, boric acid and optionally molybdic acid.
5545347 Low phosphorous, low etch cleaner and method August 13, 1996
Compositions and methods for cleaning and etching an aluminum surface with a low etch, low phosphate alkaline cleaner solution are disclosed. The preferred composition employs a stable combination of an alkali metal hydroxide, gluconic acid, a detergent source, an aluminum sequestrant, a
5541257 Reactive rinse aid for processing plastic surfaces July 30, 1996
A method of enhancing the drainage of residual aqueous rinse from the external surfaces of plastic parts is disclosed. The method employs an aqueous solution of a tannin compound, which when applied to the surface of plastic parts will not rinse off during subsequent rinse stages and
5538622 Methods and compositions for inhibiting the polymerization of dichlorobutene July 23, 1996
Methods and compositions for inhibiting the polymerization of crude dichlorobutene during its processing are disclosed. The methods comprise adding an effective polymerization inhibiting amount of a composition of a hydroxylamine compound and a metal deactivator compound to the dichl
5538622 Methods and compositions for inhibiting the polymerization of dichlorobutene July 23, 1996
Methods and compositions for inhibiting the polymerization of crude dichlorobutene during its processing are disclosed. The methods comprise adding an effective polymerization inhibiting amount of a composition of a hydroxylamine compound and a metal deactivator compound to the dichl
5536326 Method for enhancing the dewatering of starch July 16, 1996
A method for enhancing the dewatering of starch comprising adding to an aqueous starch slurry an effective amount of a composition comprising polybutene and at least one surfactant having a melting point less than 20.degree. C.
5531937 Water soluble cyclic amine-dicarboxylic acid-alkanol amine salt corrosion inhibitor July 2, 1996
Compositions and a method of using the compositions to inhibit corrosion. The compositions are water soluble n-alkyl morpholine, saturated dicarboxylic acid, optionally alkanol amine and optionally surfactant compositions which inhibit ferrous metal corrosion when added to aqueous ox
5527468 Nonionic polymers for the treatment of boiler water June 18, 1996
A treatment for controlling the deposition of scale imparting species on the structural surfaces of steam generating systems, wherein the aqueous medium is maintained at a pH which minimizes magnetite solubility, comprising the use of a combination of an organic amine and a nonionic
5525241 Solid halogen feed system June 11, 1996
A water treatment system including a tank for containing a solid treatment product such as a solid halogen. The water treatment system is adapted to be used in combination with a cooling system wherein treated water is fed to the cooling system through an outlet conduit leading from the
5523002 Polymeric dithiocarbamic acid salt compositions and methods of use June 4, 1996
A contaminant precipitating composition and method are disclosed. The composition comprises a water soluble branched polymeric composition effective for the purpose of precipitating contaminants from an aqueous solution. The method comprises adding an amount of the composition, effec
5521814 Process optimization and control system that plots inter-relationships between variables to meet May 28, 1996
A process control system uses a performance model, in conjunction with an economic model, to meet either performance or economic objectives. The system operates either automatically, on-line, in "real time" or manually off-line, in "real time" to optimize the process to meet a selected
5519102 Aqueous polymerization method for poly(isopropenylphosphonic acid) May 21, 1996
A method of preparing poly(isopropenylphosphonic acid) is disclosed, which provides a high yield with low initiator charge. The method comprises preparing poly(isopropenylphosphonic acid) by polymerizing a mixture of isopropenylphosphonic acid and isopropenylphosphonic acid anhydride,
5518770 Methods and compositions for pretreatment of metals May 21, 1996
Methods and compositions for pretreating a metal surface are provided. The methods comprise applying to the metal surface a hydrolysate of a copolymer of an unsaturated carboxylic acid or derivative thereof and a vinyltrialkoxysilane compound. Novel zinc salt hydrolysate compositions
5518640 Metal working emulsion cleaner May 21, 1996
An emulsion cleaner formulation is provided which is free of toxic or hazardous materials listed under SARA 313. The emulsion cleaner formulation employs a blend of triethanolamine soap of tall oil fatty acid, polyethylene glycol (400) dioleate and polyethylene glycol (400) monooleat
5518636 Methods of detoxifying quaternary ammonium compounds toward aquatic organisms May 21, 1996
The present invention is directed to a method of detoxifying water containing quaternary ammonium compounds to the extent that aquatic life such as fish and macroinvertebrates are protected. The method comprises adding to an aqueous system including a quaternary ammonium compound a s
5518630 Method for controlling scale formation and deposition May 21, 1996
A method and composition for controlling the formation and deposition of scale imparting compounds in an aqueous system is disclosed. A treatment comprising a sulfonated polymer and a polymaleic acid is effective in controlling the formation and deposition of such compounds.
5518629 Methods for controlling scale formation in acqueous systems May 21, 1996
A method of controlling scale formation and deposition and corrosion in aqueous systems is described wherein a treatment solution of a substoichiometric amount of a scale/corrosion inhibitor in combination with a substituted alkylpolycarboxylate is employed. The scale/corrosion inhib
5518555 Chromium and fluoride free metal treatment May 21, 1996
A heavy metal and fluoride free pretreatment for a metal surface which enhances corrosion resistance and surface adhesion properties is described. The pretreatment is an aqueous solution of an anionic polyacrylamide which can be rinsed or dried in place.
5512636 Cationic graft polymer agglomeration agents for mineral bearing ores April 30, 1996
Agglomerating agent and method for use in heap leaching of mineral bearing ores. Cationic polymers alone or in combination with cement or lime are highly effective agglomerating agents in acidic or alkaline leaching operations. The cationic polymers are preferably graft copolymers, block
5512243 Cyclohexanedione oxygen scavengers April 30, 1996
An oxygen scavenger for aqueous mediums is disclosed. The oxygen scavengers comprise cyclohexanediones which, when added to basic aqueous solutions, effectively scavenge oxygen from the aqueous solutions. The oxygen scavenger has particular utility as an oxygen scavenger from water in
5512213 Aqueous stabilized isothiazolone blends April 30, 1996
A treatment for stabilizing an isothiazolone compound comprising adding to the compound a stabilizing amount of a metal salt, wherein the cation of the metal salt is an alkali metal, and the anion is selected from the group consisting of acetate, citrate, phosphate and borate.
5512212 Corrosion inhibitor composition and method of use April 30, 1996
A composition and method for inhibiting corrosion of iron and iron-containing metals in contact with aqueous systems containing sulfide compounds. The composition comprises (A) an aqueous solution of an alcohol, an acid, a fatty imidazoline, and an ethoxylated fatty diamine, and (B)
5512186 Method for inhibiting microbial adhesion on surfaces April 30, 1996
A method for inhibiting the microbial adhesion on surfaces in contact with an aqueous system is disclosed, which comprises adding to the system a treatment comprising an alkylsulfosuccinate surfactant.
5512183 Alkyl-allylphosphonate copolymer used for boiler water treatment April 30, 1996
A water soluble isopropenylphosphonic acid copolymer composition and method of use thereof are disclosed. The copolymer comprises repeat units (a) of the formula: ##STR1## wherein X=OH or OM, wherein M is a cation, and repeat units (b) of the formula: ##STR2## wherein R.s
5510547 Methods for inhibiting vinyl aromatic monomer polymerization April 23, 1996
Methods for inhibiting the polymerization of vinyl aromatic monomers in oxygen-free processing systems are disclosed. The methods comprise adding from 1 to 10,000 parts of a combination of a hydroxylamine compound and a phenylenediamine compound to the vinyl aromatic monomer.
5505792 Visible dried-in-place non-chrome polyacrylamide based treatment for aluminum April 9, 1996
A method of providing color to a polyacrylamide based, dried-in-place, non-chromate conversion coating is provided. The addition of a phthalo green pigment and optionally a nonionic surfactant to an aqueous, dried-in-place conversion coating treatment solution provides for a colored
5500373 Methods for determining the concentration of cyanide in sour aqueous systems March 19, 1996
A method for determining the concentration of cyanide in an aqueous system is disclosed. The method determines the cyanide concentration from a determination of reference thiocyanate concentrations and will measure the cyanide concentration in the presence of sulfides.
5500220 Biological and dust control methods for bulk/granular solids March 19, 1996
A foam carrier for a dust control agent and a biological control agent is provided to control fugitive dust dissemination and biological activity in bulk/granular solids.
5500213 Gelled biocidal treatments March 19, 1996
A biocidal composition and method for inhibiting and controlling the growth of microorganisms are disclosed. The composition comprises an amount, effective for the intended purpose, of polyethylene glycols and bis(trichloro methyl) sulfone, in combination with additional biocidal com
5500133 Polymeric dithiocarbamate acid salt compositions and method of use March 19, 1996
A contaminant precipitating composition and method are disclosed. The composition comprises a water soluble, branched, polydithiocarbamic acid salt effective for the purpose of precipitating contaminants from an aqueous solution. The method comprises adding an amount of the composition
5500128 High calcium tolerant deposit control method March 19, 1996
A method and composition for controlling deposition of scale and the like in waters having a high calcium ion content is disclosed. The composition comprises a combination of an alkylidene diphosphonic acid and a water soluble polymeric material.
5500107 High temperature corrosion inhibitor March 19, 1996
A process for the inhibition of corrosion caused by naphthenic acid and sulfur compounds during the elevated temperature processing of crude oil by use of an aryl containing phosphite compound having one of the structures: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are C.sub.6
5500053 Composition for and method of monitoring dried-in-place non-chrome polyacrylamide based treatmen March 19, 1996
A process for measuring the coating weight of a dried-in-place non-chromate polyacrylamide/surfactant based conversion coating is disclosed. An ammonium hexafluorotitanate tracer added to such a conversion coating was found to not adversely affect coating properties. The tracer was found
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