Patents Assigned to Betz Laboratories, Inc.
  • Methods for inhibiting the deposition of proteinaceous materials on heat transfer surfaces
    Patent number: 5336414
    Abstract: Methods for controlling the formation of proteinaceous fouling deposits in high temperature evaporators and concentrators as employed in processing steepwater in the wet milling of corn. The methods comprise adding lecithin, or a long chain fatty acid to the steepwater in an amount ranging from about 150 parts per million to about 500 parts per million steepwater.
    Type: Grant
    Filed: March 17, 1993
    Date of Patent: August 9, 1994
    Assignee: Betz Laboratories, Inc.
    Inventor: Nancy A. DiAngelo
  • Method for inhibiting silica and silicate deposition
    Patent number: 5332505
    Abstract: A method and composition for inhibiting silica and silicate deposition on metal surfaces in contact with aqueous systems is disclosed.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: July 26, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: William S. Carey, Andrew Solov, Libardo A. Perez
  • Composition and method for inhibiting coke formation and deposition during pyrolytic hydrocarbon processing
    Patent number: 5330970
    Abstract: Methods and compositions are provided for inhibiting the formation and deposition of pyrolytic coke on metal surfaces in contact with a hydrocarbon feedstock undergoing pyrolytic processing. Coke inhibition is achieved by adding a coke inhibiting amount of a combination of a boron compound and a dihydroxybenzene compound.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: July 19, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: Dwight K. Reid, Daniel E. Fields
  • Method and composition for treatment of metals
    Patent number: 5328525
    Abstract: A non-chromate pretreatment for aluminum and zinc-aluminum galvanized steel is disclosed which comprises a polyacrylic acid or homopolymers and copolymers thereof, a molybdate, and a dihydrohexafluo acid.
    Type: Grant
    Filed: January 5, 1993
    Date of Patent: July 12, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: Edward M. Musingo, Bruce V. Haberle, Philip D. Deck
  • Methods for controlling scale formation in aqueous systems
    Patent number: 5326478
    Abstract: A method of controlling the formation and deposition of scale forming salts in a circulating aqueous system is described wherein a treatment solution of a substoichiometric amount of polyepoxysuccinic acid in combination with agaric acid is employed.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: July 5, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: Libardo A. Perez, Donald T. Freese, Judith B. Rockett, William S. Carey
  • Method of inhibiting calcium oxalate scale deposition
    Patent number: 5320757
    Abstract: Hydrolyzed copolymers (A) maleic anhydride with (B) at least one more ethylenically unsaturated monomer other than acrylic acid or methacrylic acid or with a mixture of (B) and (C) acrylic acid or methacrylic acid are employed in a process to inhibit calcium oxalate formation and deposition.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: June 14, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: Davor F. Zidovec, Alexander D. Fisher
  • Process for enhanced drainage of residual aqueous rinse on the external surface of plastic parts
    Patent number: 5314546
    Abstract: Processes for enhancing the drainage of residual aqueous rinse from the external surfaces of plastic parts, such as auto fascia, are disclosed. The processes employ an aqueous solution of a zircoaluminate compound, which when applied to the surfaces of plastic parts will not rinse off during subsequent rinse stages and will remain on the plastic parts.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: May 24, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: Jeffrey I. Melzer, Barry P. Gunagan
  • High temperature corrosion inhibitor
    Patent number: 5314643
    Abstract: 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 a corrosion inhibitor consisting of trialkylphosphate and an alkaline earth metal phosphonate-phenate sulfide.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: May 24, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: James G. Edmondson, S. Blake Pruett
  • Biocidal compositions and use thereof
    Patent number: 5310733
    Abstract: Disclosed are compositions and methods for inhibiting and controlling the growth of the capsulated, facultative bacterium, Klebsiella pneumoniae. The compositions comprise 2-(2-bromo-2-nitroethenyl) furan and n-tributyltetradecyl phosphonium chloride. The method comprises adding from 1 part to about 200 parts composition to the aqueous system for which treatment is desired.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: May 10, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: Wilson K. Whitekettle, Deborah K. Donofrio
  • Biocidal compositions and use thereof
    Patent number: 5310761
    Abstract: A microbial inhibiting composition and method is disclosed. The composition comprises an amount, effective for the intended purpose of diiodomethyl-p-tolylsulfone and dodecylguanidine hydrochloride. The method comprises administering an amount of this combined treatment to the particular water containing system for which treatment is desired.
    Type: Grant
    Filed: July 22, 1993
    Date of Patent: May 10, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: Wilson K. Whitekettle, Deborah K. Donofrio
  • Biocidal compositions and use thereof
    Patent number: 5310755
    Abstract: Disclosed are compositions and method for inhibiting and controlling the growth of the capsulated, facultative bacterium, Klebisella pneumoniae. The compositions comprise 2-(2-bromo-2-nitroetheny) furan and n-4-dihydroxy-oxobenzene-ethanimidoyl chloride. The method comprises adding from 1 part to about 200 parts composition to the aqueous system for which treatment is desired.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: May 10, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: Deborah K. Donofrio, Wilson K. Whitekettle
  • Biocidal compositions and use thereof
    Patent number: 5302616
    Abstract: A fungicidal composition and method for inhibiting and controlling the growth of the capsulated, facultative bacterium, Trichoderma viride, are disclosed. The compositions comprise 2-(2-bromo-2-nitroethenyl) furan and diiodomethyl-p-tolylsulfone. The method comprises adding from 1 part to about 500 parts composition to the aqueous system for which treatment is desired.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: April 12, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: Wilson K. Whitekettle, Deborah K. Donofrio
  • Process and composition for inhibiting and controlling microbial growth
    Patent number: 5302614
    Abstract: A microbial inhibiting composition and method is disclosed. The composition comprises an amount, effective for the intended purpose of dodecylguanidine hydrochloride and 2-(2-bromo-2-nitroethenyl) furan. The method comprises administering an amount of this combined treatment to the particular water containing system for which treatment is desired.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: April 12, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: Wilson K. Whitekettle, Deborah K. Donofrio
  • Methods for controlling dust in high temperature systems
    Patent number: 5302308
    Abstract: Method for inhibiting dust emissions from hot (>120.degree. F.) substrates are provided for. The method comprise adding to the substrate an aqueous solution or formed solution of polyethylene oxide or a polyethylene oxide derivative.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: April 12, 1994
    Assignee: Betz Laboratories, Inc.
    Inventor: Donald C. Roe
  • Biocidal compositions and use thereof
    Patent number: 5302615
    Abstract: A bactericidal composition and method for inhibiting and controlling the growth of the capsulated, facultative bacterium, Klebisella pneumoniae, are disclosed. The compositions comprise 2-(2-bromo-2-nitroethenyl) furan and phenyl-(2-cyano-2-chlorovinyl) sulfone. The method comprises adding from 1 part to about 200 parts composition to the aqueous system for which treatment is desired.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: April 12, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: Deborah K. Donofrio, Wilson K. Whitekettle
  • Water soluble graft copolymers and methods of use thereof
    Patent number: 5298566
    Abstract: A water soluble graft copolymer useful for dewatering wastewater having the structure: ##STR1## wherein E is the repeat unit obtained after polymerization of an .alpha., .beta. ethylenically unsaturated compound, the molar percentage of a:b is from about 95:5 to 5:95, with the proviso that the sum of a and b equals 100% G comprises the structure: ##STR2## wherein d is a cationic monomer, R.sub.1, R.sub.2 and R.sub.3 are the same or different and are hydrogen or a lower alkyl group having C.sub.1 to C.sub.3, F is the salt of an ammonium cation and the molar percentage of c:d is from 95:5 to 5:95 with the proviso that the sum of c and d equals 100%.
    Type: Grant
    Filed: January 5, 1993
    Date of Patent: March 29, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: Wen P. Liao, Fu Chen
  • High temperature hydrocarbon defoamer composition and method
    Patent number: 5296132
    Abstract: Methods and compositions for controlling foam in high temperature hydrocarbons during processing vegetable oils, exemplified by jojoba oil, are added to the hydrocarbon to control foam.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: March 22, 1994
    Assignee: Betz Laboratories, Inc.
    Inventor: Paul R. Hart
  • Use of the reaction products of polyalkenylsuccinimides, triazoles, and aldehydes as anti foulants in hydrocarbon process media
    Patent number: 5292425
    Abstract: Reaction products of polyalkenylsuccinimides with triazoles and aldehydes are used as effective antifoulants in liquid hydrocarbonaceous mediums, such as crude oils and gas oils, during processing of such liquids at elevated temperatures. The reaction products are formed via a two-step reaction in which a polyalkenylsuccinic anhydride precursor is reacted with an alkenylpolyamine to form a polyalkenylsuccinimide intermediate which, in turn, is reacted with a triazole and an aldehyde.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: March 8, 1994
    Assignee: Betz Laboratories, Inc.
    Inventor: David R. Forester
  • Visible dried-in-place non-chrome treatment for aluminum
    Patent number: 5292378
    Abstract: A method of providing color to a 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 conversion coating without adversely effecting the corrosion resistance or adhesion properties of the conversion coating.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: March 8, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: Jiangbo Ouyang, Bruce V. Haberle, Philip D. Deck, William L. Harpel
  • Microbial inhibiting compositions and their use
    Patent number: 5292776
    Abstract: A biocidal composition and method for inhibiting and controlling the growth of the fungus, Trichoderma viride, are disclosed. The composition comprises an amount, effective for the intended purpose of diiodomethyl-p-tolylsulfone and an additional biocidal component. The method comprises administering between about 0.1 to about 200 parts of this combined treatment (based on one million parts of the desired aqueous system) to the particular water containing system for which treatment is desired.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: March 8, 1994
    Assignee: Betz Laboratories, Inc.
    Inventors: Deborah K. Donofrio, Wilson K. Whitekettle