Patents by Inventor Shui-Ping Zhu

Shui-Ping Zhu 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).

  • Patent number: 11089779
    Abstract: A disinfectant composition that is effective against tuberculosis-causing bacteria is disclosed. The composition contains a disinfectant agent that is a combination of biocidal quaternary ammonium compound and an N,N-di-substituted alkylamide water insoluble solvent. The composition can be a concentrated formulation or a ready-to-use formulation. Methods of disinfecting surfaces containing tuberculosis-causing bacteria are also disclosed.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: August 17, 2021
    Assignee: Stepan Company
    Inventors: Sangeeta Ganguly-Mink, Kenneth J. Littel, Shui Ping Zhu
  • Patent number: 10676430
    Abstract: The present disclosure is related to non-alpha-substituted, low molecular weight peracid compositions. The peracids have no or a negligible amount of odor, have good stability, and have antimicrobial properties. The peracid compositions can be formulated into a wide variety of end use products, including disinfectants, sanitizers, sporicides, fungicides, laundry products, hard surface cleaners, bleaching agents, personal cleansers, and water treatment products.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: June 9, 2020
    Assignee: Stepan Company
    Inventors: Sangeeta Ganguly-Mink, Kenneth J. Littel, Shui Ping Zhu
  • Publication number: 20200085042
    Abstract: A disinfectant composition that is effective against tuberculosis-causing bacteria is disclosed. The composition contains a disinfectant agent that is a combination of biocidal quaternary ammonium compound and an N,N-di-substituted alkylamide water insoluble solvent. The composition can be a concentrated formulation or a ready-to-use formulation. Methods of disinfecting surfaces containing tuberculosis-causing bacteria are also disclosed.
    Type: Application
    Filed: October 10, 2019
    Publication date: March 19, 2020
    Inventors: Sangeeta Ganguly-Mink, Kenneth J. Littel, Shui Ping Zhu
  • Publication number: 20190016678
    Abstract: The present disclosure is related to non-alpha-substituted, low molecular weight peracid compositions. The peracids have no or a negligible amount of odor, have good stability, and have antimicrobial properties. The peracid compositions can be formulated into a wide variety of end use products, including disinfectants, sanitizers, sporicides, fungicides, laundry products, hard surface cleaners, bleaching agents, personal cleansers, and water treatment products.
    Type: Application
    Filed: September 19, 2018
    Publication date: January 17, 2019
    Inventors: Sangeeta Ganguly-Mink, Kenneth J. Littel, Shui Ping Zhu
  • Patent number: 9737076
    Abstract: Disinfectant compositions include 0.001 to 10% by weight of hydrogen peroxide or a hydrogen peroxide source based on the total weight of the composition; 0.001 to 20% by weight of at least one amphoteric surfactant based on the total weight of the composition; and 0.001 to 15% by weight of at least one alkali metal or alkaline earth metal salt of a cyclic or heterocyclic aromatic compound comprising at least one hydroxyl group, carboxylic group, or combination thereof based on the total weight of the composition. The disinfectant compositions are particularly effective at treating surfaces contaminated with resistant bacteria, such as Staphylococcus aureus at a fast killing rate.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: August 22, 2017
    Assignee: Arkema Inc.
    Inventors: Shui-Ping Zhu, Stephen W. Carson, Xue Wang, Nikola Juhasz
  • Patent number: 9538760
    Abstract: Disinfectant compositions include 0.001 to 10% by weight of hydrogen peroxide or a hydrogen peroxide source based on the total weight of the composition; 0.001 to 20% by weight of at least one amphoteric surfactant based on the total weight of the composition; and 0.001 to 0.8% by weight of at least one alkali metal or alkaline earth metal salt of a cyclic or heterocyclic aromatic compound comprising at least one hydroxyl group, carboxylic group, or combination thereof based on the total weight of the composition. The disinfectant compositions are particularly effective at treating surfaces contaminated with resistant bacteria, such as Staphylococcus aureus at a fast killing rate.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: January 10, 2017
    Assignee: Arkema Inc.
    Inventors: Shui-Ping Zhu, Stephen W. Carson, Xue Wang
  • Publication number: 20160312156
    Abstract: A stable, aqueous, liquid composition comprises both an enzyme and a peroxide or peroxide source. The composition contains a compatibilizer package having at least one compound chosen from enzyme stabilizers and peroxide stabilizers. The compatibilizer package maintains the activity of the enzyme and the concentration of the peroxide. A composition comprising peroxide or a peroxide source and a compatibilizer package is also disclosed.
    Type: Application
    Filed: December 18, 2014
    Publication date: October 27, 2016
    Inventors: Pan PAN, Michael B. ABRAMS, Michael ROBBINS, John M. BARNES, Shui-Ping ZHU, Xue WANG
  • Patent number: 9062280
    Abstract: The present invention relates to a liquid cleaning composition comprising a peroxygen bleach, a sulfonated anionic surfactant and an amphoteric/zwitterionic surfactant where the sulfonated anionic surfactant and the amphoteric/zwitterionic surfactants are in a ratio of from 0.1:1 to 13:1. The combination of the sulfonated anionic surfactant and the amphoteric/zwitterionic surfactants provides for high viscosities and improved cleaning performance.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: June 23, 2015
    Assignee: Arkema Inc.
    Inventors: Shui-Ping Zhu, Keith R. Genco, Stephen W. Carson
  • Publication number: 20150150263
    Abstract: Disinfectant compositions include 0.001 to 10% by weight of hydrogen peroxide or a hydrogen peroxide source based on the total weight of the composition; 0.001 to 20% by weight of at least one amphoteric surfactant based on the total weight of the composition; and 0.001 to 0.8% by weight of at least one alkali metal or alkaline earth metal salt of a cyclic or heterocyclic aromatic compound comprising at least one hydroxyl group, carboxylic group, or combination thereof based on the total weight of the composition. The disinfectant compositions are particularly effective at treating surfaces contaminated with resistant bacteria, such as Staphylococcus aureus at a fast killing rate.
    Type: Application
    Filed: January 26, 2015
    Publication date: June 4, 2015
    Inventors: Shui-Ping Zhu, Stephen W. Carson, Xue Wang
  • Publication number: 20150150262
    Abstract: Disinfectant compositions include 0.001 to 10% by weight of hydrogen peroxide or a hydrogen peroxide source based on the total weight of the composition; 0.001 to 20% by weight of at least one amphoteric surfactant based on the total weight of the composition; and 0.001 to 15% by weight of at least one alkali metal or alkaline earth metal salt of a cyclic or heterocyclic aromatic compound comprising at least one hydroxyl group, carboxylic group, or combination thereof based on the total weight of the composition. The disinfectant compositions are particularly effective at treating surfaces contaminated with resistant bacteria, such as Staphylococcus aureus at a fast killing rate.
    Type: Application
    Filed: January 26, 2015
    Publication date: June 4, 2015
    Inventors: Shui-Ping Zhu, Steven W. Carson, Xue Wang, Nikola Juhasz
  • Publication number: 20130225467
    Abstract: The present invention relates to an automatic dishwashing composition including from about 0.1 to 5 weight, percent cross-linked anionic polyacrylate polymer, from about 0.1 to 40 weight percent alkali metal citrate chelating agent and from about 1 to 40 weight percent alkali metal sulfate, with from about 0.1 to 20 weight percent nonionic surfactant and from about 0.05 to 8.0 weight percent bleaching agent as optional components.
    Type: Application
    Filed: September 13, 2011
    Publication date: August 29, 2013
    Inventors: Shui-Ping Zhu, Stephen W. Carson
  • Publication number: 20130143786
    Abstract: The present invention is directed towards cleaning composition and/or formulations of commercial cleaning products containing beneficial metallocarbene activators for peroxygen species. The cleaning compositions and/or formulations include a bleaching component comprising a peroxy compound and one or more activators present in an effective amount to activate the peroxy compound to accomplish bleaching or cleaning or oxidation. The activator is a metallocarbene of the general structure (XX?C)yMLn? where M represents a metal center, C represents the carbene carbon bound to the metal center, X and X? may be the same or different and may furthermore be part of a cyclic structure, Ln? represents one or more other ligands which may or may not include one or more metal centers, and where y greater than equal to I.
    Type: Application
    Filed: May 18, 2011
    Publication date: June 6, 2013
    Applicant: Arkema Inc.
    Inventors: Shui-Ping Zhu, Michael B. Abrams, Xiawei Zhang, Xue Wang
  • Publication number: 20130089533
    Abstract: Disinfectant compositions include 0.001 to 10% by weight of hydrogen peroxide or a hydrogen peroxide source based on the total weight of the composition; 0.001 to 20% by weight of at least one amphoteric surfactant based on the total weight of the composition; and 0.001 to 15% by weight of at least one alkali metal or alkaline earth metal salt of a cyclic or heterocyclic aromatic compound comprising at least one hydroxyl group, carboxylic group, or combination thereof based on the total weight of the composition. The disinfectant compositions are particularly effective at treating surfaces contaminated with resistant bacteria, such as Staphylococcus aureus at a fast killing rate.
    Type: Application
    Filed: October 2, 2012
    Publication date: April 11, 2013
    Applicant: Arkema Inc.
    Inventors: Shui-Ping Zhu, Stephen W. Carson, Xue Wang, Nikola Juhasz
  • Publication number: 20130089621
    Abstract: Disinfectant compositions include 0.001 to 10% by weight of hydrogen peroxide or a hydrogen peroxide source based on the total weight of the composition; 0.001 to 20% by weight of at least one amphoteric surfactant based on the total weight of the composition; and 0.001 to 0.8% by weight of at least one alkali metal or alkaline earth metal salt of a cyclic or heterocyclic aromatic compound comprising at least one hydroxyl group, carboxylic group, or combination thereof based on the total weight of the composition. The disinfectant compositions are particularly effective at treating surfaces contaminated with resistant bacteria, such as Staphylococcus aureus at a fast killing rate.
    Type: Application
    Filed: October 5, 2011
    Publication date: April 11, 2013
    Applicant: Arkema Inc.
    Inventors: Shui-Ping Zhu, Stephen W. Carson, Xue Wang
  • Publication number: 20120288570
    Abstract: A hydrogen peroxide composition comprises hydrogen peroxide, a stabilizer system comprising a colloidal stannate, at least one acidifying agent or a salt thereof selected from the group consisting of sulfur-containing acidifying agents, nitric acid, and mixtures and salts thereof. Optionally, the hydrogen peroxide composition comprises an organic phosphonic acid or a salt thereof, such as amino-phosphonate, and/or a free radical scavenger, such as salicylic acid. A cleaning formulation comprises the hydrogen peroxide composition, a pH adjusting agent, and optionally other additives, such as surfactants. The cleaning formulation may be made by mixing the hydrogen peroxide or a precursor thereof, water, colloidal stannate, and at least one acidifying agent, and optionally, adjusting the pH to achieve an alkaline pH.
    Type: Application
    Filed: December 21, 2010
    Publication date: November 15, 2012
    Applicant: Arkema, Inc.
    Inventors: Shui-Ping Zhu, Stephen W. Carson, Keith R. Genco
  • Publication number: 20120129755
    Abstract: The present invention relates to a liquid cleaning composition comprising a peroxygen bleach, a sulfonated anionic surfactant and an amphoteric/zwitterionic surfactant where the sulfonated anionic surfactant and the amphoteric/zwitterionic surfactants are in a ratio of from 0.1:1 to 13:1. The combination of the sulfonated anionic surfactant and the amphoteric/zwitterionic surfactants provides for high viscosities and improved cleaning performance.
    Type: Application
    Filed: August 4, 2010
    Publication date: May 24, 2012
    Applicant: Arkema Inc.
    Inventors: Shui-Ping Zhu, Keith R. Genco, Stephen W. Carson
  • Patent number: 7387992
    Abstract: A laundry detergent composition comprising from about 0.1% to about 80%, by weight of the composition, of a polyamine mono-anionic surfactant; and a solubiliser; in a defined weight ratio. Also, a process of making the polyamine mono-anionic surfactant and the laundry compositions containing the same.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: June 17, 2008
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Feng-Lung Gordon Hsu, Shui-Ping Zhu, Mei Shi
  • Patent number: 7291582
    Abstract: An aqueous liquid laundry detergent composition comprising an alkoxylated carboxylic acid surfcatant and a free radical scavenger in the mole ratio of from about 500:1 to about 20:1. The composition substantially prevents the degradation of the alkoxylated ester surfactant upon storage and is also color-stable.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: November 6, 2007
    Assignee: Conopco, Inc., d/b/a Unilever
    Inventors: Feng-lung Gordon Hsu, Shui-Ping Zhu
  • Patent number: 7205268
    Abstract: A low-foaming aqueous liquid laundry detergent composition comprising from about 0.05% to about 6%, by weight of the composition, of certain carboxylic acid ester and/or low-degree alkoxylated derivatives thereof having HLB below about 10; from about 8% to about 80% of a surfactant; from about 15% to about 90% of water. The compositions are particularly suitable for use in front-loading laundry washing machines.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: April 17, 2007
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Feng-Lung Gordon Hsu, Shui-Ping Zhu
  • Publication number: 20070066504
    Abstract: An aqueous liquid laundry detergent composition comprising an alkoxylated carboxylic acid surfcatant and a free radical scavenger in the mole ratio of from about 500:1 to about 20:1. The composition substantially prevents the degradation of the alkoxylated ester surfactant upon storage and is also color-stable.
    Type: Application
    Filed: September 20, 2005
    Publication date: March 22, 2007
    Inventors: Feng-lung Hsu, Shui-Ping Zhu