Patents by Inventor Krishnan Tamareselvy

Krishnan Tamareselvy 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: 20200299439
    Abstract: Disclosed are multi-staged acrylic emulsion polymers and their use as rheology modifiers in the formulation of liquid personal care cleansers for the skin and hair. More particularly, the present technology relates to liquid cleansing compositions that possess the necessary rheology properties to stably suspend particles and insoluble materials within the cleanser but may also be used with pump dispensers to generate and dispense a creamy foam without fouling the pump mechanism.
    Type: Application
    Filed: September 19, 2018
    Publication date: September 24, 2020
    Applicant: Lubrizol Advanced Materials, Inc.
    Inventors: Joseph E. Prata, Michael P. Myers, Krishnan Tamareselvy
  • Publication number: 20200277554
    Abstract: The disclosed technology relates to a formulation for a unit does cleansing product without the use of a film package, which contains a basic cleansing composition and a structurant comprising C6-C30 fatty acid or mixtures thereof and at least one water soluble polymer or water dispersible polymer.
    Type: Application
    Filed: October 5, 2018
    Publication date: September 3, 2020
    Inventors: Andrew P. Nelson, Yunpeng Zhu, Feng-Lung Gordon Hsu, Krishnan Tamareselvy, Sinan Li, Kristia A. Rivera, Steven Carbone, Gary A. Russo, John Uhran, David Michael Pehar, Jess Carlson, Trevor L. Jackson
  • 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: 20180223016
    Abstract: The disclosed technology relates to pure polyitaconic acid homo- and co-polymers free of the less reactive tri-substituted vinyl monomers (e.g., citraconic acid or mesaconic acid) that may be used, for example, as builders in detergent applications, such as in the personal and home care market.
    Type: Application
    Filed: February 2, 2018
    Publication date: August 9, 2018
    Inventors: Krishnan Tamareselvy, Feng-Lung Gordon Hsu, Smita Brijmohan, Francine I. Shuster, John Ta-Yuan Lai, Gaurav Mago
  • Patent number: 9931290
    Abstract: Disclosed are surfactant compositions containing at least one crosslinked acrylic copolymer. The crosslinked acrylic copolymer is polymerized in the presence of at least two different classes of crosslinking monomers. The crosslinked acrylic copolymers provide desirable rheological, clarity, and aesthetic properties in aqueous surfactant containing compositions.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: April 3, 2018
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventor: Krishnan Tamareselvy
  • Publication number: 20170022451
    Abstract: The disclosed technology relates to esterified and/or ether containing polymers derived from itaconic acid that are free of the less reactive tri-substituted vinyl monomers (e.g., citraconic acid or mesaconic acid) that may be used, for example, as builders in detergent applications, such as in the personal and home care market.
    Type: Application
    Filed: March 13, 2015
    Publication date: January 26, 2017
    Inventors: Krishnan Tamareselvy, Feng-Lung Gordon Hsu, Smita Brijmohan, Francine I. Shuster, John Ta-Yuan Lai, Gaurav Mago, Yunpeng Zhu, Randy B. Collins
  • Patent number: 9303111
    Abstract: The present invention relates to a thickeners that are the polymerization product of a monomer mixture comprising: (a) at least one C3 to C30 olefin; (b) at least one monomer that contains at least one carboxylic acid group; (c) at least one ethylenically unsaturated ester monomer; and (d) one or more crosslinking compounds. Optionally, the above multi-purpose polymer compositions can further include any combination of one or more of: (e) at least one functional monomer; (f) at least one associative hydrophobic monomer; and/or (g) at least one chain transfer agent (CTA) and/or at least one polymeric stabilizer. The thickeners of the present invention are useful in a variety of products including, but not limited to, personal care products, health care products, household care products, institutional and industrial care products, and industrial applications.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: April 5, 2016
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Krishnan Tamareselvy, Robert J. Pafford, IV, Libin Du
  • Publication number: 20160068620
    Abstract: The disclosed technology relates to pure polyitaconic acid homo- and co-polymers free of the less reactive tri-substituted vinyl monomers (e.g., citraconic acid or mesaconic acid) that may be used, for example, as builders in detergent applications, such as in the personal and home care market.
    Type: Application
    Filed: March 14, 2014
    Publication date: March 10, 2016
    Inventors: Krishnan Tamareselvy, Feng-Lung Gordon Hsu, Smita Brijmohan, Francine I. Shuster, John Ta-Yuan Lai, Gaurav Mago
  • 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: 9187590
    Abstract: The present invention relates to hydrolytically stable multi-purpose polymers that are polymerized from a monomer mixture comprising: at least one amino-substituted meth(acrylate) (ASMA) monomer or salt thereof; and at least one nonionic vinyl (NIV) monomer, wherein the monomer mixture optionally comprises one or more of at least one vinyl associative (VA) monomer; at least one vinyl surfactant (VS) monomer; and/or at least one polymerizable silicone macromer (PSM) and wherein the monomer mixture further optionally comprises one or more of at least one crosslinking (XL) monomer; at least one chain transfer agent (CTA); and/or at least one polymeric stabilizer. The multi-purpose polymers of the present invention can also be prepared from monomer mixtures containing chain transfer agents or other functional components commonly utilized in polymerization process.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: November 17, 2015
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Krishnan Tamareselvy, Yanshi Zhang, Deborah S. Filla
  • Patent number: 9068148
    Abstract: Disclosed are blends of acrylic polymers comprising at least one crosslinked acrylic copolymer and at least one linear acrylic copolymer. The acrylic polymer blends 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: June 30, 2015
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Krishnan Tamareselvy, Denise W. Rafferty
  • Patent number: 8840870
    Abstract: The present invention relates to hair care and personal care compositions which contain an acrylic copolymer which is polymerized in the presence of at least two different classes of crosslinking monomers. The polymer functions both as a fixative/film former and a thickening agent for hair styling and personal care compositions in which it is contained. The copolymer exhibits advantageous fixative, film forming and rheological gel properties.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: September 23, 2014
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Krishnan Tamareselvy, Pascal Staelens
  • Publication number: 20140275460
    Abstract: The present invention relates to a thickeners that are the polymerization product of a monomer mixture comprising: (a) at least one C3 to C30 olefin; (b) at least one monomer that contains at least one carboxylic acid group; (c) at least one ethylenically unsaturated ester monomer; and (d) one or more crosslinking compounds. Optionally, the above multi-purpose polymer compositions can further include any combination of one or more of: (e) at least one functional monomer; (f) at least one associative hydrophobic monomer; and/or (g) at least one chain transfer agent (CTA) and/or at least one polymeric stabilizer. The thickeners of the present invention are useful in a variety of products including, but not limited to, personal care products, health care products, household care products, institutional and industrial care products, and industrial applications.
    Type: Application
    Filed: November 1, 2012
    Publication date: September 18, 2014
    Applicant: Lubrizol Advanced Materials, Inc.
    Inventors: Krishnan Tamareselvy, Robert J. Pafford, IV, Libin Du
  • Patent number: 8796484
    Abstract: A polymerizable dimethicone copolyol macromer composition is synthesized by reacting itaconic anhydride with a dimethicone copolyol. During the reaction itaconic anhydride spontaneously isomerizes to citraconic anhydride which in turn is esterified by the dimethicone copolyol. The obtained macromers are copolymerizable with olefinically unsaturated monomers. Polymers containing the macromer repeating units are useful in a variety of applications including personal care, textile and industrial formulations to deliver softness, lubricity, fixative, water repellency, gloss, surface modification, and surfactant properties.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: August 5, 2014
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Aroop K. Roy, Krishnan Tamareselvy
  • Patent number: 8766011
    Abstract: The present invention relates to a method for synthesizing amonoalcohols (e.g., aminoalcohols that contain an amine group that is either unsubstituted, mono-substituted, or di-substituted) and to the products formed therefrom. In one embodiment, the present invention relates to a method for synthesizing aminoalcohols from a corresponding aminoaldehyde and to the products formed therefrom. In another embodiment, the present invention relates to a method for synthesizing aminoalcohols from a corresponding aminoaldehyde via a hydrogenation process using a suitable catalyst (e.g., Raney® Nickel) and to the products formed therefrom. In still another embodiment, the present invention relates to aminoalcohols formed via direct hydrogenation from a corresponding aminoaldehyde without the intervening step of converting the aminoaldehyde starting material to a salt.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: July 1, 2014
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Yanshi Zhang, Krishnan Tamareselvy
  • 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: 20130189198
    Abstract: Disclosed are surfactant compositions containing at least one crosslinked acrylic copolymer. The crosslinked acrylic copolymer is polymerized in the presence of at least two different classes of crosslinking monomers. The crosslinked acrylic copolymers provide desirable rheological, clarity, and aesthetic properties in aqueous surfactant containing compositions.
    Type: Application
    Filed: October 5, 2011
    Publication date: July 25, 2013
    Applicant: LUBRIZOL ADVANCED MATERIALS, INC.
    Inventor: Krishnan Tamareselvy
  • 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: 20130164242
    Abstract: The present invention relates to hair care and personal care compositions which contain an acrylic copolymer which is polymerized in the presence of at least two different classes of crosslinking monomers. The polymer functions both as a fixative/film former and a thickening agent for hair styling and personal care compositions in which it is contained. The copolymer exhibits advantageous fixative, film forming and rheological gel properties.
    Type: Application
    Filed: September 1, 2011
    Publication date: June 27, 2013
    Applicant: LUBRIZOL ADVANCED MATERIALS, INC.
    Inventors: Krishnan Tamareselvy, Pascal Staelens
  • 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