Patents by Inventor Helen S. M. Lu

Helen S. M. Lu 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).

  • Publication number: 20240150497
    Abstract: Disclosed herein are detergent compositions that comprise at least one (i) glucan derivative and/or (ii) oxidized polysaccharide derivative. A glucan derivative of (i) can be substituted with at least one organic group that comprises a carboxylic acid group or a sulfonate group, and the degree of substitution (DoS) of the glucan derivative with the organic group can be about 0.1 to about 3.0. An oxidized polysaccharide derivative of (ii) can be produced by contacting a polysaccharide derivative under aqueous conditions with at least one agent that is capable of oxidizing the polysaccharide derivative. The polysaccharide derivative for oxidation has a degree of substitution (DoS) up to about 3.0 with at least one organic group. Further disclosed are various applications and products employing detergent compositions.
    Type: Application
    Filed: February 17, 2022
    Publication date: May 9, 2024
    Inventors: ARJEN HOEKSTRA, SANDER BAS KLUIT, Zhengzheng HUANG, HELEN S. M. LU, DAQING ZHANG, GEERT VAN DER KRAAN
  • Publication number: 20240117275
    Abstract: Disclosed herein are cleaning compositions comprising renewable components. More particularly, the cleaning compositions comprise an organic acid derivative of mono- and diglycerides, a functionalized polymer, an enzyme system, and a polar protic solvent other than water.
    Type: Application
    Filed: January 28, 2022
    Publication date: April 11, 2024
    Inventors: ENDA CAREY, ARJEN HOEKSTRA, HELEN S.M. LU, RASMUS LETH MILLER
  • Publication number: 20230287148
    Abstract: The disclosure relates to poly alpha-1,6-glucan ester compounds comprising poly alpha-1,6-glucan substituted with at least one ester group as defined herein and having a degree of substitution of about 0.001 to about 3.0. The poly alpha-1,6-glucan comprises a backbone of glucose monomer units wherein greater than or equal to 40% of the glucose monomer units are linked via alpha-1,6 glycosidic linkages, and optionally at least 5% of the backbone glucose monomer units have branches via alpha-1,2 and/or alpha-1,3 glycosidic linkages. Compositions comprising a poly alpha-1,6-glucan ester compound can be useful in various applications.
    Type: Application
    Filed: June 9, 2021
    Publication date: September 14, 2023
    Inventors: ZHENGZHENG HUANG, DOUGLAS J. ADELMAN, JEAN-POL BOUTIQUE, RUTH CHILTON, NEIL THOMAS FAIRWEATHER, KRISTI LYNN FLITER, HELEN S.M. LU, MARK ROBERT SIVIK, GANG SI, DAVID GOOD
  • Patent number: 11708542
    Abstract: The disclosure relates to products including a polysaccharide derivative wherein the polysaccharide derivative includes a polysaccharide substituted with at least one of: a) at least one sulfate group; b) at least one sulfonate group; c) at least one thiosulfate group; or d) a combination thereof; wherein the polysaccharide is poly alpha-1,3-glucan, poly alpha-1,6-glucan, poly alpha-1,3-1,6-glucan, or a mixture thereof; and the polysaccharide derivative has a degree of substitution of about 0.001 to about 3. The products can be useful as anti-deposition and/or anti-graying agents in laundry detergents, and in home care applications.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: July 25, 2023
    Assignee: The Procter & Gamble Company
    Inventors: Mark Robert Sivik, Zhengzheng Huang, Helen S. M. Lu, Rakesh Nambiar, Jayme L. Paullin
  • Publication number: 20230212325
    Abstract: The disclosure relates to poly alpha-1,6-glucan derivatives comprising poly alpha-1,6-glucan substituted with at least one organic group linked to the poly alpha-1,6-glucan through a linkage moiety selected from ether, sulfonyl, carbonate, or carbamoyl/carbamate, and having a degree of substitution of about 0.001 to about 3.0. The poly alpha-1,6-glucan comprises a backbone of glucose monomer units wherein greater than or equal to 40% of the glucose monomer units are linked via alpha-1,6 glycosidic linkages, and optionally at least 5% of the backbone glucose monomer units have branches via alpha-1,2 and/or alpha-1,3 glycosidic linkages. Compositions comprising a poly alpha-1,6-glucan derivative can be useful in various applications.
    Type: Application
    Filed: June 9, 2021
    Publication date: July 6, 2023
    Inventors: ZHENGZHENG HUANG, DOUGLAS J. ADELMAN, NEIL THOMAS FAIRWEATHER, KRISTI LYNN FLITER, DAVID GOOD, HELEN S.M. LU, WEIMING QIU, GANG SI, MARK ROBERT SIVIK
  • Patent number: 11584901
    Abstract: The disclosure relates to compositions comprising a polysaccharide derivative, wherein the polysaccharide derivative comprises a polysaccharide substituted with a) at least one hydrophobic group, and b) at least one hydrophilic group, wherein the polysaccharide is poly alpha-1,3-glucan, poly alpha-1,6-glucan, or poly alpha-1,3-1,6-glucan.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: February 21, 2023
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Zhengzheng Huang, Helen S. M. Lu, Weiming Qiu, Mukesh C. Shah, Steven W. Shuey, Mark Robert Sivik, Kristi Lynn Fliter
  • Publication number: 20230043452
    Abstract: Fabric conditioning compositions that include a poly alpha-1,3-glucan ether compound and depositable actives, where the poly alpha-1,3-glucan ether compound may be characterized by certain molecular weights and degrees of cationic substitution. Related methods of using and making such compositions.
    Type: Application
    Filed: October 3, 2022
    Publication date: February 9, 2023
    Inventors: Carola BARRERA, Mark Robert SIVIK, Kristine Lynn FLITER, Helen S.M. LU, Weiming QIU
  • Publication number: 20220056375
    Abstract: The disclosure relates to compositions comprising a polysaccharide derivative, wherein the polysaccharide derivative comprises a polysaccharide substituted with a) at least one hydrophobic group, and b) at least one hydrophilic group, wherein the polysaccharide is poly alpha-1,3-glucan, poly alpha-1,6-glucan, or poly alpha-1,3-1,6-glucan.
    Type: Application
    Filed: July 15, 2021
    Publication date: February 24, 2022
    Inventors: Zhengzheng Huang, Helen S.M. Lu, Weiming Qiu, Mukesh C. Shah, Steven W. Shuey, Mark Robert Sivik, Kristi Lynn Fliter
  • Publication number: 20210253977
    Abstract: The disclosure relates to compositions comprising a polysaccharide derivative wherein the polysaccharide derivative comprises a polysaccharide substituted with a) at least one sulfate group; b) at least one sulfonate group; c) at least one thiosulfate group; or d) a combination thereof; wherein the polysaccharide is poly alpha-1,3-glucan, poly alpha-1,6-glucan, poly alpha-1,3-1,6-glucan, or a mixture thereof; and the polysaccharide derivative has a degree of substitution of about 0.001 to about 3. The compositions can be useful as anti-deposition and/or anti-graying agents in laundry detergents, and in home, personal care, and industrial applications.
    Type: Application
    Filed: June 19, 2019
    Publication date: August 19, 2021
    Inventors: Zhengzheng HUANG, Helen S M LU, Rakesh NAMBIAR, Jayme L. PAULLIN, Mark Robert SIVIK
  • Patent number: 11066626
    Abstract: The disclosure relates to compositions comprising a polysaccharide derivative, wherein the polysaccharide derivative comprises a polysaccharide substituted with a) at least one hydrophobic group, and b) at least one hydrophilic group, wherein the polysaccharide is poly alpha-1,3-glucan, poly alpha-1,6-glucan, or poly alpha-1,3-1,6-glucan.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: July 20, 2021
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Zhengzheng Huang, Helen S M Lu, Weiming Qiu, Mukesh C. Shah, Steven W. Shuey, Mark Robert Sivik, Kristi Lynn Fliter
  • Patent number: 11028187
    Abstract: The disclosure relates to compositions comprising a poly alpha-1,3-glucan derivative. The poly alpha-1,3-glucan derivative is a poly alpha-1,3-glucan polymer wherein the polymer is substituted with at least one polyether group and/or polyamine group. Compositions comprising the poly alpha-1,3-glucan derivative are useful as detergent compositions.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: June 8, 2021
    Assignee: NUTRITION & BIOSCIENCES USA 4, INC.
    Inventors: Helen S M Lu, Weiming Qiu
  • Patent number: 10844142
    Abstract: The disclosure relates to compositions comprising a polysaccharide derivative. The polysaccharide derivative is a polysaccharide polymer wherein the polymer is substituted with at least one polyether group and/or polyamine group. Compositions comprising the polysaccharide derivative are useful as detergent compositions.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: November 24, 2020
    Assignee: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
    Inventors: Helen S M Lu, Robert Dicosimo, Rong Guan, Weiming Qui
  • Publication number: 20200002646
    Abstract: The disclosure relates to compositions comprising a polysaccharide derivative, wherein the polysaccharide derivative comprises a polysaccharide substituted with a) at least one hydrophobic group, and b) at least one hydrophilic group, wherein the polysaccharide is poly alpha-1,3-glucan, poly alpha-1,6-glucan, or poly alpha-1,3-1,6-glucan.
    Type: Application
    Filed: December 14, 2017
    Publication date: January 2, 2020
    Inventors: Zhengzheng Huang, Helen S M Lu, Weiming Qiu, Mukesh C. Shah, Steven W. Shuey, Mark Robert Sivik, Kristi Lynn Fliter
  • Publication number: 20190390138
    Abstract: The disclosure relates to products including a polysaccharide derivative wherein the polysaccharide derivative includes a polysaccharide substituted with at least one of: a) at least one sulfate group; b) at least one sulfonate group; c) at least one thiosulfate group; or d) a combination thereof; wherein the polysaccharide is poly alpha-1,3-glucan, poly alpha-1,6-glucan, poly alpha-1,3-1,6-glucan, or a mixture thereof; and the polysaccharide derivative has a degree of substitution of about 0.001 to about 3. The products can be useful as anti-deposition and/or anti-graying agents in laundry detergents, and in home care applications.
    Type: Application
    Filed: June 19, 2019
    Publication date: December 26, 2019
    Inventors: Mark Robert SIVIK, Zhengzheng HUANG, Helen S.M. LU, Rakesh NAMBIAR, Jayme L. PAULLIN
  • Publication number: 20190309096
    Abstract: The disclosure relates to compositions comprising a poly alpha-1,3-glucan derivative. The poly alpha-1,3-glucan derivative is a poly alpha-1,3-glucan polymer wherein the polymer is substituted with at least one polyether group and/or polyamine group. Compositions comprising the poly alpha-1,3-glucan derivative are useful as detergent compositions.
    Type: Application
    Filed: June 12, 2017
    Publication date: October 10, 2019
    Applicant: E I du Pont de Nemours and Company
    Inventors: Helen S M LU, Weiming QIU
  • Publication number: 20190202942
    Abstract: The disclosure relates to compositions comprising a polysaccharide derivative. The polysaccharide derivative is a polysaccharide polymer wherein the polymer is substituted with at least one polyether group and/or polyamine group. Compositions comprising the polysaccharide derivative are useful as detergent compositions.
    Type: Application
    Filed: June 12, 2017
    Publication date: July 4, 2019
    Inventors: Helen S M Lu, Robert Dicosimo, Rong Guan, Weiming Qui
  • Patent number: 9668476
    Abstract: This invention relates to a method for controlling microorganisms comprising coating a surface with a removable, antimicrobial film-forming composition.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: June 6, 2017
    Assignee: LANXESS Corporation
    Inventors: Helen S. M. Lu, Christian Lenges, Barry Stieglitz, Lynn Leger, Christian Hoffman, Judith J. Vangorp, Shaun F. Malone
  • Publication number: 20160286796
    Abstract: This invention relates to a method for controlling microorganisms comprising coating a surface with a removable, antimicrobial film-forming composition.
    Type: Application
    Filed: April 11, 2016
    Publication date: October 6, 2016
    Inventors: HELEN S M LU, CHRISTIAN HOFFMANN, CHRISTIAN PETER LENGES, BARRY STIEGLITZ, DONNA LYNN LEGER, JUDITH JOHANNA VAN GORP, SHAUN FRANCIS MALONE
  • Patent number: 9370601
    Abstract: A tissue adhesive formed by reacting an aminodextran containing primary amine groups with an oxidized dextran containing aldehyde groups is described. The dextran-based polymer tissue adhesive is particularly useful in medical applications where low swell and slow degradation are needed, for example sealing the dura, ophthalmic procedures, tissue repair, antiadhesive applications, drug delivery, and as a plug to seal a fistula or the punctum.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: June 21, 2016
    Assignee: Actamax Surgical Materials, LLC
    Inventor: Helen S. M. Lu
  • Patent number: 9296245
    Abstract: The invention pertains to a printing form and a process for preparing the printing form from a solvent-free curable composition that includes, in prescribed relative amounts, an epoxy novolac resin; a bisphenol-A epoxy resin or a bisphenol-F epoxy resin; a monofunctional reactive diluent; a multifunctional reactive diluent; and a stoichiometric amount of an amine curing agent. The ratio of the epoxy novolac resin to the bisphenol epoxy resin is 1:3 to 3:1 by weight. The process includes applying the curable composition to a supporting substrate to form a layer, curing the layer at one or more temperatures in a temperature range, and engraving to form at least one cell in the cured layer. The process prepares printing forms, particularly gravure printing forms, having a cured resin composition layer that is engravable, resistant to solvent inks and to mechanical wear, and capable of printing gravure-quality images.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: March 29, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark E. Wagman, Helen S. M. Lu