Patents by Inventor Terri A. Cunningham

Terri A. Cunningham 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).

  • Low-VOC aqueous coating compositions with excellent freeze-thaw stability
    Patent number: 7612126
    Abstract: The present invention relates to an aqueous coating composition having excellent freeze-thaw stability and a low-VOC content, comprising a multi-stage polymer dispersion comprising (a) an inner phase comprising at least one latex polymer derived from at least one monomer and at least one polymerizable alkoxylated surfactant having the structure: R1—R2 wherein R1 is an allyl group selected from the group consisting of CH3—CH?CH— and CH2?CH—CH2—, or an acrylic group and R2 is a radical comprising at least two carbon atoms and at least one oxyethylene or oxypropylene unit; (b) an outer phase having a glass transition temperature of from 30° C. to 110° C. containing at least one ethylenic unsaturated monomer (c) at least one pigment; (d) water; and (e) less than 3.0% by weight based on the total weight of the aqueous coating composition of anti-freeze agents.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: November 3, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Konrad Roschmann, Joerg Leuninger, Rolf Dersch, Cheng-Le Zhao, Li Zhuo, Terri A. Cunningham
  • Low-VOC aqueous coating compositions with excellent freeze-thaw stability
    Patent number: 6933415
    Abstract: The present invention is an aqueous coating composition having excellent freeze-thaw stability and a low-VOC content. The aqueous coating composition of the invention includes at least one latex polymer derived from at least one monomer and at least one polymerizable alkoxylated surfactant, at least one pigment, and water. In accordance with the invention, less than 3.0% by weight of anti-freeze agents based on the total weight of the aqueous coating composition are used in the composition. The present invention also includes a method of preparing an aqueous coating composition such as a latex paint including the above components.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: August 23, 2005
    Assignee: BASF AG
    Inventors: Cheng-Le Zhao, Terri A. Cunningham, Li Zhuo
  • Low-VOC aqueous coating compositions with excellent freeze-thaw stability
    Publication number: 20030229171
    Abstract: The present invention is an aqueous coating composition having excellent freeze-thaw stability and a low-VOC content. The aqueous coating composition of the invention includes at least one latex polymer derived from at least one monomer and at least one polymerizable alkoxylated surfactant, at least one pigment, and water. In accordance with the invention, less than 3.0% by weight of anti-freeze agents based on the total weight of the aqueous coating composition are used in the composition. The present invention also includes a method of preparing an aqueous coating composition such as a latex paint including the above components.
    Type: Application
    Filed: June 6, 2002
    Publication date: December 11, 2003
    Inventors: Cheng-Le Zhao, Terri A. Cunningham, Li Zhuo