Patents by Inventor Mingli Wei

Mingli Wei 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).

  • Fluorescent monomers and tagged treatment polymers containing same for use in industrial water systems
    Patent number: 7148351
    Abstract: Fluorescent monomers are described and claimed which are synthesized by reacting a substituted or non-substituted naphthalic anhydride with an amine and with a moiety containing a polymerizable group. Such monomers are useful for the preparation of tagged treatment polymers. Such tagged treatment polymers are useful as scale inhibitors in industrial water systems.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: December 12, 2006
    Assignee: Nalco Company
    Inventors: John D. Morris, Barbara E. Moriarty, Mingli Wei, Patrick G. Murray, Jerry L. Reddinger
  • Fluorescent monomers and tagged treatment polymers containing same for use in industrial water systems
    Publication number: 20060254985
    Abstract: Fluorescent monomers are described and claimed which are synthesized by reacting a substituted or non-substituted naphthalic anhydride with an amine and with a moiety containing a polymerizable group. Such monomers are useful for the preparation of tagged treatment polymers. Such tagged treatment polymers are useful as scale inhibitors in industrial water systems.
    Type: Application
    Filed: July 19, 2006
    Publication date: November 16, 2006
    Inventors: John Morris, Barbara Moriarty, Mingli Wei, Patrick Murray, Jerry Reddinger
  • Water soluble monomers and polymers for protecting substrates from ultraviolet light
    Patent number: 7008618
    Abstract: A UV-protective composition for treating substrates comprising one or more water-soluble, cationic, UV-absorbing polymers, wherein the cationic, UV-absorbing polymers are prepared by polymerizing one or more vinyl, allyl or acrylic monomers with one or more vinyl or acrylic monomers that absorb ultraviolet light radiation having a wavelength of about 200 to about 420 nm and a method of treating substrates.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: March 7, 2006
    Assignee: Nalco Company
    Inventors: Yin Z. Hessefort, John D. Morris, Wayne M. Carlson, Mingli Wei, Murat Quadir, Larry E. Brammer, Jr.
  • Stable wet strength resin
    Publication number: 20050217817
    Abstract: A method of stabilizing an aqueous solution of polyaminoamide-epichlorohydrin resin comprising sequentially adding to the solution about 0.1 to about 10 weight percent of one or more strong acids and about 0.1 to about 10 weight percent of one or more weak acids to prepare a stabilized solution having a pH of about 3-4.
    Type: Application
    Filed: March 28, 2005
    Publication date: October 6, 2005
    Inventors: Mingli Wei, Vladimir Grigoriev, Gary Furman, William Ward
  • Stable wet strength resin
    Publication number: 20050222377
    Abstract: A method of stabilizing an aqueous solution of polyaminoamide-epichlorohydrin resin comprising adjusting the pH of the solution to less than about 3 with strong acid and then adding to the solution a weak acid in a mole ratio of total protons available from the weak acid to total protons available from the strong acid of about 0.05 to about 2.
    Type: Application
    Filed: April 5, 2004
    Publication date: October 6, 2005
    Inventors: Mingli Wei, Vladimir Grigoriev, Gary Furman
  • Water-soluble polyaminoamides comprising 1,3-diimines as sunscreen agents
    Publication number: 20050180933
    Abstract: A UV-protective composition comprising a water-soluble polyaminoamide containing 1,3-diimine groups and a modifier, wherein the polyaminoamide containing 1,3-diimine groups absorbs ultraviolet light radiation having a wavelength of about 200 nm to about 420 nm, and methods of treating substrates with the UV-protective polyaminoamide containing 1,3-diimine groups.
    Type: Application
    Filed: March 21, 2005
    Publication date: August 18, 2005
    Inventors: Mingli Wei, Yin Hessefort, Wayne Carlson
  • Water-soluble polyaminoamides as sunscreen agents
    Publication number: 20050154180
    Abstract: A UV-protective water-soluble polyaminoamide comprising UV-absorbing end groups, wherein the polyaminoamide absorbs ultraviolet light radiation having a wavelength of about 200 nm to about 420 nm, compositions comprising the UV-protective polyaminoamide and methods of treating substrates with the UV-protective polyaminoamide.
    Type: Application
    Filed: September 4, 2003
    Publication date: July 14, 2005
    Inventors: Yin Hessefort, Mingli Wei, Wayne Carlson
  • WATER-SOLUBLE POLYAMINOAMIDES COMPRISING 1,3-DIIMINES AS SUNSCREEN AGENTS
    Publication number: 20050092970
    Abstract: A UV-protective composition comprising a water-soluble polyaminoamide containing 1,3-diimine groups, wherein the polyaminoamide containing 1,3-diimine groups absorbs ultraviolet light radiation having a wavelength of about 200 nm to about 420 nm, and methods of treating substrates with the UV-protective polyaminoamide containing 1,3-diimine groups.
    Type: Application
    Filed: October 30, 2003
    Publication date: May 5, 2005
    Inventors: Mingli Wei, Yin Hessefort, Wayne Carlson
  • Water-soluble polyaminoamides comprising 1,3-diimines as sunscreen agents
    Patent number: 6887400
    Abstract: A UV-protective composition comprising a water-soluble polyaminoamide containing 1,3-diimine groups, wherein the polyaminoamide containing 1,3-diimine groups absorbs ultraviolet light radiation having a wavelength of about 200 nm to about 420 nm, and methods of treating substrates with the UV-protective polyaminoamide containing 1,3-diimine groups.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: May 3, 2005
    Assignee: Nalco Company
    Inventors: Mingli Wei, Yin Z. Hessefort, Wayne M. Carlson
  • Fluorescent monomers and tagged treatment polymers containing same for use in industrial water systems
    Publication number: 20040135125
    Abstract: Fluorescent monomers are described and claimed which are synthesized by reacting a substituted or non-substituted naphthalic anhydride with an amine and with a moiety containing a polymerizable group. Such monomers are useful for the preparation of tagged treatment polymers. Such tagged treatment polymers are useful as scale inhibitors in industrial water systems.
    Type: Application
    Filed: September 9, 2003
    Publication date: July 15, 2004
    Inventors: John D. Morris, Barbara E. Moriarty, Mingli Wei, Patrick G. Murray, Jerry L. Reddinger
  • Fluorescent monomers and tagged treatment polymers containing same for use in industrial water systems
    Publication number: 20040135124
    Abstract: Fluorescent monomers are described and claimed which are synthesized by reacting a substituted or non-substituted naphthalic anhydride with an amine and with a moiety containing a polymerizable group. Such monomers are useful for the preparation of tagged treatment polymers. Such tagged treatment polymers are useful as scale inhibitors in industrial water systems.
    Type: Application
    Filed: September 9, 2003
    Publication date: July 15, 2004
    Inventors: John D. Morris, Barbara E. Moriarty, Mingli Wei, Patrick G. Murray, Jerry L. Reddinger
  • Fluorescent monomers and tagged treatment polymers containing same for use in industrial water systems
    Patent number: 6645428
    Abstract: Fluorescent monomers are described and claimed which are synthesized by reacting a substituted or non-substituted naphthalic anhydride with an amine and with a moiety containing a polymerizable group. Such monomers are useful for the preparation of tagged treatment polymers. Such tagged treatment polymers are useful as scale inhibitors in industrial water systems.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: November 11, 2003
    Assignee: Ondeo Nalco Company
    Inventors: John D. Morris, Barbara E. Moriarty, Mingli Wei, Patrick G. Murray, Jerry L. Reddinger
  • Method of controlling deposit formation in aqueous systems
    Publication number: 20030173302
    Abstract: Deposit formation is controlled in aqueous systems through the addition of at least one fatty amine surfactant.
    Type: Application
    Filed: March 13, 2002
    Publication date: September 18, 2003
    Inventors: Kun Xiong, Mingli Wei
  • Method for inhibiting the formation and deposition of silica scale in water systems
    Patent number: 6461518
    Abstract: This invention relates to a method for inhibiting the formation and deposition of silica scale in water systems. The method includes treating the water in such water systems with an effective amount of a polyamide that contains secondary amine and/or ether and amide functional groups.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: October 8, 2002
    Assignee: Nalco Chemical Company
    Inventors: Konstantinos Demadis, Douglas G. Kelley, David P. Workman, Mingli Wei
  • Fluorescent monomers and polymers containing same for use in industrial water systems
    Patent number: 6312644
    Abstract: Fluorescent monomers of the formula wherein M is selected from the group consisting of hydrogen, sodium, potassium, cesium, rubidium, lithium and ammonium, and n is selected from the group consisting of 1, 2, 3, 4, 6 and 9; are provided which are useful in the production of pyranine-tagged polymers which can be detected using a fluorometer and can be used in industrial water systems as treatment polymers.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: November 6, 2001
    Assignee: Nalco Chemical Company
    Inventors: Barbara E. Moriarty, Mingli Wei, John E. Hoots, David P. Workman, Jeffrey P. Rasimas