Patents by Inventor David L. Dashiell

David L. Dashiell 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: 20200085717
    Abstract: Provided are mild, optically stable, low pH surfactant compositions comprising low molecular weight, non-crosslinked, linear acrylic emulsion copolymers and their use as ocular and/or dermal irritation mitigants in such compositions. The disclosed polymers have a number average molecular wt. of 100,000 Daltons or less, the polymer comprises at least 51 wt. % of polymerized residues of at least one ethylenically unsaturated C3-C6 carboxylic acid monomer, with the remainder of polymerized residues selected from at least one C1-C4 alkyl (meth)acrylate monomer.
    Type: Application
    Filed: December 15, 2017
    Publication date: March 19, 2020
    Inventors: Krishnan Tamareselvy, Deborah S. Filla, David L. Dashiell
  • Publication number: 20150342858
    Abstract: A conditioning cleansing composition comprising at least one detersive surfactant, a silicone conditioning agent and a crosslinked acrylic copolymer stabilizer/thickener that mitigates the loss silicone deposition on keratinous substrates is disclosed. The crosslinked acrylic copolymer is prepared by polymerizing a monomer composition comprising: a) from about 5 to about 50 wt. % of carboxyethyl acrylate and/or oligomers thereof; b) from about 30 to about 95 wt. % of a monomer selected from ethyl acrylate, vinyl acetate, or mixtures thereof; c) from about 0 to about 50 wt. % of (meth)acrylic acid; and d) from about 0.001 to about 5 wt. % of a polyunsaturated crosslinking monomer containing at least two polymerizable ethylenically unsaturated moieties.
    Type: Application
    Filed: December 11, 2013
    Publication date: December 3, 2015
    Applicant: LUBRIZOL ADVANCED MATERIALS, INC.
    Inventors: Krishnan Tamareselvy, Deborah S. Filla, Denise W. Rafferty, Carole A. Lepilleur, David L. Dashiell
  • Patent number: 8673277
    Abstract: Disclosed are multi-staged acrylic based core-shell polymers comprising a linear core polymer and at least one subsequently polymerized shell polymers is crosslinked. The core-shell polymers surprisingly provide desirable rheological, clarity, and aesthetic properties in aqueous surfactant containing compositions, particularly at low pH.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: March 18, 2014
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Krishnan Tamareselvy, Deborah S. Filla, Steven J. Smith, David L. Dashiell, Gary Gray, Yi Yang, John J. Mullay
  • Publication number: 20130183361
    Abstract: Disclosed are multi-staged acrylic based core-shell polymers comprising a linear core polymer and at least one subsequently polymerized shell polymer. At least one of the subsequently polymerized shell polymers is crosslinked. The core-shell polymers surprisingly provide desirable rheological, clarity, and aesthetic properties in aqueous surfactant containing compositions, particularly at low pH. The multi-staged acrylic base core-shell polymers can be included in at least one phase of a multi-phase personal care, home care, health care, and institutional and industrial care composition to impart phase stability thereto.
    Type: Application
    Filed: September 30, 2011
    Publication date: July 18, 2013
    Applicant: LUBRIZOL ADVANCED MATERIALS, INC.
    Inventors: Krishnan Tamareselvy, Nancy S. Marchant, David L. Dashiell, Deborah S. Filla
  • Publication number: 20130115185
    Abstract: Disclosed are multi-staged acrylic based core-shell polymers comprising a linear core polymer and at least one subsequently polymerized shell polymers is crosslinked. The core-shell polymers surprisingly provide desirable rheological, clarity, and aesthetic properties in aqueous surfactant containing compositions, particularly at low pH.
    Type: Application
    Filed: July 7, 2011
    Publication date: May 9, 2013
    Applicant: LUBRIZOL ADVANCED MATERIALS, INC.
    Inventors: Krishnan Tamareselvy, Deborah S. Filla, Steven J. Smith, David L. Dashiell, Gary Gray, Yi Yang, John J. Mullay