Patents by Inventor Edward A. Rodzewich

Edward A. Rodzewich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Rinsable metal pretreatment methods and compositions
    Patent number: 8585834
    Abstract: Chromate-free and metal phosphate free treatments and compositions for applying a conversion or passivation coating for metals, more particularly, steel, zinc coated steel, and aluminum surfaces. The methods of the invention comprise contacting the requisite metal surface with a treatment composition comprising a member or members comprising one or more Group IV B elements, fluoride, and phosphonic acid or phosphonate. Optionally, a silane may be added as a treatment component.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: November 19, 2013
    Inventors: Edward A. Rodzewich, Jeffrey I. Melzer, Philip D. Deck, Donald W. Whisenhunt, Jr., William S. Carey, David B. Engel, Bret Chisholm, Christopher M. Carter
  • Rinsable metal pretreatment methods and compositions
    Publication number: 20080245444
    Abstract: Chromate-free and metal phosphate free treatments and compositions for applying a conversion or passivation coating for metals, more particularly, steel, zinc coated steel, and aluminum surfaces. The methods of the invention comprise contacting the requisite metal surface with a treatment composition comprising a member or members comprising one or more Group IV B elements, fluoride, and phosphonic acid or phosphonate. Optionally, a silane may be added as a treatment component.
    Type: Application
    Filed: June 10, 2008
    Publication date: October 9, 2008
    Applicant: General Electric Company
    Inventors: Edward A. Rodzewich, Jeffrey I. Melzer, Philip D. Deck, Donald W. Whisenhunt, William S. Carey, David B. Engel, Bret Chisholm, Christopher M. Carter
  • Rinsable metal pretreatment methods and compositions
    Publication number: 20060151070
    Abstract: Chromate-free and metal phosphate free treatments and compositions for applying a conversion or passivation coating for metals, more particularly, steel, zinc coated steel, and aluminum surfaces. The methods of the invention comprise contacting the requisite metal surface with a treatment composition comprising a member or members comprising one or more Group IV B elements, fluoride, and phosphonic acid or phosphonate. Optionally, a silane may be added as a treatment component.
    Type: Application
    Filed: January 12, 2005
    Publication date: July 13, 2006
    Applicant: General Electric Company
    Inventors: Edward Rodzewich, Jeffrey Melzer, Philip Deck, Donald Whisenhunt, William Carey, David Engel, Bret Chisholm, Christopher Carter
  • Chrome free treatment for aluminum
    Publication number: 20040094235
    Abstract: A chromate free conversion coating for Al based metals and methods of use. The compositions comprise (a) water soluble fluoacids of Group IVB metals, (b) fluoboric acid, (c) boric acid, (d) gluconic acid and, optionally (e) an aminosilane adhesion promoter or an organophosphonate corrosion inhibitor. In the method, the requisite metal part is contacted by the composition such as by immersion or spraying or the like.
    Type: Application
    Filed: November 18, 2002
    Publication date: May 20, 2004
    Applicant: GE Betz, Inc.
    Inventors: Edward A. Rodzewich, Philip D. Deck
  • Polyphenolamine composition and method of use
    Patent number: 6607610
    Abstract: The present invention relates to a composition for the treatment of metal substrates including an aqueous solution of a Group IVA metal ion, selected from the group consisting of zirconium, titanium, hafnium and mixtures thereof, and a water-soluble or water-dispersible polyphenolamine.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: August 19, 2003
    Assignee: GE Betz, Inc.
    Inventors: William S. Carey, Bruce Haberle, Jeffrey I. Melzer, Edward A. Rodzewich, Ping Lue, Andrew Solov
  • Tri-cation zinc phosphate conversion coating and process of making the same
    Patent number: 6551417
    Abstract: Tri-cation zinc phosphate conversion coating compositions are disclosed. The compositions include a phosphate component, ions of nickel, manganese, and zinc, and a glycerophosphate component, such as disodium glycerophosphate. Coatings formed from these compositions provide improved corrosion resistance to metal substrates and provide a uniform layer for the application of paint finishes. Processes of making and using these compositions are also disclosed.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: April 22, 2003
    Assignee: GE Betz, Inc.
    Inventors: Edward A. Rodzewich, Bruce V. Haberle, Joseph E. Murphy
  • Compositions for treating paint spray booth water
    Patent number: 6136220
    Abstract: Methods and compositions for detackifying and dispersing, and coagulating/flocculating and dispersing solventborne and waterborne paints, respectively, in paint spray booth waters are disclosed. An aqueous composition of water soluble cationic polymer, nonionic surfactant and amphoteric surfactant is used in conjunction with a silicate compound to treat the paint spray booth waters.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: October 24, 2000
    Assignee: BetzDearborn Inc.
    Inventors: Howard B. Agree, Barry P. Gunagan, Edward A. Rodzewich
  • Methods and compositions for treating paint spray booth water
    Patent number: 5985154
    Abstract: Methods and compositions for detackifying and dispersing, and coagulating/flocculating and dispersing solventborne and waterborne paints, respectively, in paint spray booth waters are disclosed. An aqueous composition of water soluble cationic polymer, nonionic surfactant and amphoteric surfactant is used in conjunction with a silicate compound to treat the paint spray booth waters.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: November 16, 1999
    Assignee: Betz Dearborn Inc.
    Inventors: Howard B. Agree, Barry P. Gunagan, Edward A. Rodzewich
  • Chromium-free conversation coating and methods of use
    Patent number: 5801217
    Abstract: Methods and compositions for providing a conversion coating to a metal surface are provided. The methods comprise applying to a metal surface an aqueous composition comprising a diglycidyl ether of Bisphenol A, a fluoroacid, and a silicon compound containing a hydrolyzable group.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: September 1, 1998
    Assignee: BetzDearborn Inc.
    Inventors: Edward A. Rodzewich, Jiangbo Ouyang, Joseph E. Murphy
  • Methods and compositions for inhibiting low carbon steel corrosion
    Patent number: 5720902
    Abstract: Disclosed are methods and compositions for inhibiting the corrosion of low carbon steel in contact with aqueous systems. The composition comprises a silicon compound containing a hydrolyzable group, a complex fluoro acid, and a cross-linking agent.
    Type: Grant
    Filed: September 21, 1995
    Date of Patent: February 24, 1998
    Assignee: BetzDearborn Inc.
    Inventors: Suzanne M. Zefferi, Edward A. Rodzewich
  • Method for forming chromium-free conversion coating
    Patent number: 5693371
    Abstract: Methods for providing a conversion coating to a metal surface are provided. The methods comprise applying to a metal surface an aqueous composition comprising a diglycidyl ether of Bisphenol A, a fluoacid, and a silicon compound containing a hydrolyzable group.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: December 2, 1997
    Assignee: BetzDearborn Inc.
    Inventors: Edward A. Rodzewich, Jiangbo Ouyang, Joseph E. Murphy
  • Cleaning and passivating treatment for metals
    Patent number: 5668096
    Abstract: A cleaning and passivating treatment for metals comprising an amphoteric surfactant which is a caprylic acid derivative of imidazoline compounds. The treatment is substantially free of amines, alkanolamines and phosphates. The preferred treatment includes small quantities of borate ions and molybdate ions. In addition a nonionic surfactant may be added as a foam control agent.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: September 16, 1997
    Assignee: BetzDearborn Inc.
    Inventors: Edward A. Rodzewich, Barry P. Gunagan
  • Method of cleaning and passivating a metal surface with acidic system and ethoxylated tertiary dodecyl mercaptan
    Patent number: 5614028
    Abstract: An acid based cleaning and passivating treatment for metal surfaces is provided. The single step acid based cleaning and passivating is provided by incorporating a corrosion inhibiting amount of an ethoxylated tertiary dodecyl mercaptan into an acidic metal cleaner.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: March 25, 1997
    Assignee: BetzDearborn Inc.
    Inventor: Edward A. Rodzewich
  • Low phosphorous, low etch cleaner and method
    Patent number: 5545347
    Abstract: 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, an oil emulsifier, a defoamer, and a hydrotrope.
    Type: Grant
    Filed: July 18, 1995
    Date of Patent: August 13, 1996
    Assignee: Betz Laboratories, Inc.
    Inventors: Jiangbo Ouyang, Edward A. Rodzewich, William L. Harpel
  • Metal working emulsion cleaner
    Patent number: 5518640
    Abstract: 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) monooleate as a stabilizing agent. The emulsion cleaner may also include a nonionic surfactant. The emulsion cleaner also includes both oil soluble and water soluble rust inhibitors.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: May 21, 1996
    Assignee: Betz Laboratories, Inc.
    Inventor: Edward A. Rodzewich
  • Metal surface treatments
    Patent number: 5494594
    Abstract: A method and composition for reducing and maintaining the coefficient of friction of a metal surface cleaned by an alkaline cleaner, while preventing the formation of foam on said surface, is disclosed. The cleaned metal surface is contacted with a treatment comprising monoethanolamine, an ethoxylated alkyl ether phosphate and a silicate.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: February 27, 1996
    Assignee: Betz Laboratories, Inc.
    Inventor: Edward A. Rodzewich
  • Low phosphorous, low etch cleaner and method
    Patent number: 5472630
    Abstract: 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, an oil emulsifier, a defoamer, and a hydrotrope.
    Type: Grant
    Filed: March 24, 1994
    Date of Patent: December 5, 1995
    Assignee: Betz Laboratories, Inc.
    Inventors: Jiangbo Ouyang, Edward A. Rodzewich, William L. Harpel
  • Composition and method of forming a black no-rinse conversion coating on metal surfaces
    Patent number: 5470613
    Abstract: A black, no-rinse conversion coating on metal surfaces is provided. The treatment of a metal such as aluminum or aluminum alloys with a composition of hexavalent chromium, an acrylic/itaconic modified styrene butyl acrylate polymer resin, a fluoacid, and carbon black results in a black no-rinse conversion coating.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: November 28, 1995
    Assignee: Betz Laboratories, Inc.
    Inventor: Edward A. Rodzewich
  • Low foaming aqueous cleaning and passivating treatment for metals
    Patent number: 5468412
    Abstract: A cleaning and passivation treatment for metal surfaces which is essentially phosphate free and resistant to foaming in soft water is disclosed. The treatment solution includes relatively water insoluble surfactants without the use of conventional hydrotropes. The treatment solution includes an aqueous solution of monoethanolamine, boric acid, a non-ionic surfactant having a cloud point below about 25.degree. C. and a hydrotropic coupling agent preferably a combination of caprylic acid and capric acid.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: November 21, 1995
    Assignee: Betz Laboratories, Inc.
    Inventor: Edward A. Rodzewich
  • Oil splitting aluminum cleaner and method
    Patent number: 5464484
    Abstract: Compositions and methods for cleaning aluminum while providing oil splitting and no oxide build-up on the aluminum surface including an alkali metal silicate and a quaternary cationic surfactant in an alkaline aqueous cleaning solution.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: November 7, 1995
    Assignee: Betz Laboratories, Inc.
    Inventor: Edward A. Rodzewich