Patents by Inventor Kolazi S. Narayanan

Kolazi S. Narayanan 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: 10428230
    Abstract: A composition which is particularly effective for removing paint or varnish from wood concrete or metal surfaces comprising synergistic mixed solvents-based compositions with Improved efficiency of performance and environmental safety. The mixed solvent compositions are made from about 10-90% by weight of each polar solvent selected from the group consisting of (pentanoic acid, 5-(dimethylamino)-4-methyl-5-oxo-methyl ester; propylene carbonate, N,N-dimethyl imidazolidinone, dimethyl sulfoxide, dimethyl acetamide, gamma butyrolactone, benzyl alcohol, and mixtures thereof and an activator, ethyl ethoxy propionate, and an aqueous system additive. Methods for use of the composition are also disclosed.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: October 1, 2019
    Inventor: Kolazi S. Narayanan
  • Patent number: 10188100
    Abstract: A matrix composition capable of forming an emulsion/micro-emulsion comprising an emulsifiable matrix, essentially free of alkyl pyrrolidone and alkoxylated alcohol, comprising: (i) a long chain substituted amide; (ii) a surface active agent; and (iii) optionally, an organic diluent.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: January 29, 2019
    Inventors: Kolazi S. Narayanan, Domingo Jon, Jayanti V. Patel
  • Patent number: 9993559
    Abstract: Described is a class of symmetrical and asymmetrical N-alkyl lactam ethers. One preferred ether is bis-N-ethyl pyrrolidone ether. Preferred compositions and uses of the ethers are in performance chemicals, personal care, and pharmaceutical fields, where they function a variety of roles, including as a solvent, solubilizer, freezing point depressor, diluent, extracting agent, cleaning agent, degreaser, absorbent and/or dispersion agent.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: June 12, 2018
    Assignee: ISP INVESTMENTS LLC
    Inventors: Osama M. Musa, Kolazi S. Narayanan
  • Publication number: 20170327703
    Abstract: A composition which is particularly effective for removing paint or varnish from wood concrete or metal surfaces comprising synergistic mixed solvents-based compositions with Improved efficiency of performance and environmental safety. The mixed solvent compositions are made from about 10-90% by weight of each polar solvent selected from the group consisting of (pentanoic acid, 5-(dimethylamino)-4-methyl-5-oxo-methyl ester; propylene carbonate, N,N-dimethyl imidazolidinone, dimethyl sulfoxide, dimethyl acetamide, gamma butyrolactone, benzyl alcohol, and mixtures thereof and an activator, ethyl ethoxy propionate, and an aqueous system additive. Methods for use of the composition are also disclosed.
    Type: Application
    Filed: July 26, 2017
    Publication date: November 16, 2017
    Inventor: KOLAZI S. NARAYANAN
  • Patent number: 9730439
    Abstract: A preformed concentrate, capable of forming emulsion/micro-emulsion upon dilution with water, for providing peripheral desiccating effect on leaves/crops comprising: (i) a water insoluble film forming polymer; (ii) a long chain substituted amide; and (iii) an oil soluble surfactant.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: August 15, 2017
    Assignee: ISP INVESTMENTS LLC
    Inventor: Kolazi S. Narayanan
  • Publication number: 20170107384
    Abstract: A composition which is particularly effective for removing paint or varnish from wood concrete or metal surfaces comprising greater than about 40% by weight of a first volatile component comprising a volatile compound and a second non-volatile component comprising from about 20 to 80% by weight of a polar solvent selected from the group consisting of (pentanoic acid, 5-(dimethylamino)-4-methyl-5-oxo-methyl ester; propylene carbonate. N,N-dimethyl imidazolidinone, dimethyl sulfoxide, dimethyl acetamide, N-methyl pyrrolidone, gamma butyrolactone and mixtures thereof and an aqueous system additive. Methods for used of the composition are also disclosed.
    Type: Application
    Filed: October 17, 2015
    Publication date: April 20, 2017
    Inventor: KOLAZI S. NARAYANAN
  • Patent number: 9560847
    Abstract: A stable matrix emulsion concentrate of a biocide, e.g. 3-iodopropynyl-2-butyl carbamate (IPBC) and/or a triazole fungicide, and stable aqueous and/or organic solvent formulations thereof, i.e. dilutable in water and/or an organic solvent are provided, which are particularly useful for treating wood products to provide protection against microorganisms and insects.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: February 7, 2017
    Assignee: ISP INVESTMENTS LLC
    Inventors: Kolazi S. Narayanan, Xianbin Liu, Karen Winkowski, Jayanti Patel
  • Publication number: 20160271254
    Abstract: Described is a class of symmetrical and asymmetrical N-alkyl lactam ethers. One preferred ether is bis-N-ethyl pyrrolidone ether. Preferred compositions and uses of the ethers are in performance chemicals, personal care, and pharmaceutical fields, where they function a variety of roles, including as a solvent, solubilizer, freezing point depressor, diluent, extracting agent, cleaning agent, degreaser, absorbent and/or dispersion agent.
    Type: Application
    Filed: May 27, 2016
    Publication date: September 22, 2016
    Applicant: ISP INVESTMENTS INC.
    Inventors: Osama M. Musa, Kolazi S. Narayanan
  • Patent number: 9351484
    Abstract: Described is a class of symmetrical and asymmetrical N-alkyl lactam ethers. One preferred ether is bis-N-ethyl pyrrolidone ether. Preferred compositions and uses of the ethers are in performance chemicals, personal care, and pharmaceutical fields, where they function a variety of roles, including as a solvent, solubilizer, freezing point depressor, diluent, extracting agent, cleaning agent, degreaser, absorbent and/or dispersion agent.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: May 31, 2016
    Assignee: ISP INVESTMENTS INC.
    Inventors: Osama M. Musa, Kolazi S. Narayanan
  • Publication number: 20160053203
    Abstract: Compositions and methods are disclosed which are effective for removing or stripping varnish and paint or stains from surfaces such as wood or metal which comprises activating NMP and/or BLO with 1-20% by weight of ethyl 3-ethoxypropionate (EEP), preferably 2-15%, and optimally about 3-5%, and with 0.1-10% by weight of NOP/ALC EO, preferably 0.2-5%, most preferably 1 -3% by weight and/or 0.1-5% by weight of Silwett 77, preferably 0.2-3%, and most preferably 0.
    Type: Application
    Filed: August 19, 2015
    Publication date: February 25, 2016
    Inventor: KOLAZI S. NARAYANAN
  • Publication number: 20160024320
    Abstract: A composition for removing paint and varnish from wood or metal surfaces comprising (a) about 20 to 70% by weight of commercial ester amide [RhodiasolvĀ® Polarclean]; (b) about 30 to 80% by weight of BLO: and (c) about 1 to 30% by weight of EEP; of said composition, optionally with one or more of the group of (d) a surfactant, (e) a thickener, (f) a flavoring agent, (g) a battering agent and (h) a diluent.
    Type: Application
    Filed: July 21, 2015
    Publication date: January 28, 2016
    Inventor: KOLAZI S. NARAYANAN
  • Patent number: 9044010
    Abstract: A stable, aqueous suspension concentrate which includes a solid polymeric dispersant comprising one or more anionic polymeric dispersing agents, optionally a co-dispersant which preferably is a homopolymer and/or a copolymer of a heterocyclic vinyl lactam, preferably in a wt. ratio of 0.1:1 to 1:0.1, a UV-labile, water-insoluble biocide active, and a UV-blocker or UV-absorber to stabilize said active upon storage and/or exposure to sunlight or UV radiation.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: June 2, 2015
    Assignee: ISP Investments Inc.
    Inventors: Xianbin Liu, Karen Winkowski, Kolazi S. Narayanan, Jean-Jacques Gulka
  • Patent number: 8747871
    Abstract: What is described herein is a synergistic matrix composite for making a stable microemulsion in water of an active ingredient comprising a first matrix composition including by wt. (a) 5-30% of a C8-C18 N-alkyl pyrrolidone, (b) optionally, 5-60% of a water insoluble organic solvent soluble therein, (c) 30-70% of a non-ionic emulsifier, and (d) 1-15% of an EO/PO/EO copolymer, and, (e) optionally, 1-5% of a surface active buffering agent, e.g. a branched alkyl ethoxylated phosphate ester, a second matrix composition comprising a polar polymeric material, e.g. polyethylene glycol, and/or a neutralized derivatized vegetable oil, e.g. maleated linseed oil, which composite is capable of loading a higher amount of said active than either composition alone.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: June 10, 2014
    Assignee: ISP Investments Inc.
    Inventors: Kolazi S. Narayanan, Domingo Jon, Jayanti Patel, Karen Winkowski, Andreas Mitschke, Otto W. Gordon
  • Publication number: 20140141978
    Abstract: A water miscible emulsion composition which is essentially free of long-chain alkylpyrrolidone and aromatic oil comprising: (i) a long chain substituted amide; (ii) a water insoluble film forming polymer; (iii) a water soluble anionic surfactant; and (iv) optionally, a bioactive, is particularly useful in providing water repellency and delaying the onset of fungi growth on crops and leaves.
    Type: Application
    Filed: July 10, 2012
    Publication date: May 22, 2014
    Applicant: ISP Investmentts Inc.
    Inventor: Kolazi S. Narayanan
  • Publication number: 20140135297
    Abstract: The present application provides an aqueous, stable, VOC-free microemulsion based antimicrobial disinfectant and/or cleaning concentrate composition capable of inhibiting or killing gram(+), gram(?) and methicillin-resistant Staphylococcus aureus (MRSA) comprising (i) a water-soluble matrix composite made of (a) water-soluble polymer, and (b) water-soluble surfactant; (ii) a blend of antimicrobial agents comprising (a) at least one compound selected from phenols, halogenated phenols, derivatives of phenols, derivatives of halogenated phenols, bis -phenols, cresols, resorcinols, halogenated hydroxyl diphenylethers, anilides or combinations thereof; and (b) at least one compound derived from essential oils; and (iii) optionally, one or more additives. Also, there is described a method of use and process for preparing the composition.
    Type: Application
    Filed: June 8, 2012
    Publication date: May 15, 2014
    Applicant: ISP Investments Inc.
    Inventors: Kolazi S Narayanan, Domingo Jon, Patel V. Jayanti, Liu Xuejun, Karen Winkowski, Raman Premachandran, Lindstrom Susan
  • Publication number: 20140045698
    Abstract: Described is a class of symmetrical and asymmetrical N-alkyl lactam ethers. One preferred ether is bis-N-ethyl pyrrolidone ether. Preferred compositions and uses of the ethers are in performance chemicals, personal care, and pharmaceutical fields, where they function a variety of roles, including as a solvent, solubilizer, freezing point depressor, diluent, extracting agent, cleaning agent, degreaser, absorbent and/or dispersion agent.
    Type: Application
    Filed: October 18, 2013
    Publication date: February 13, 2014
    Applicant: ISP INVESTMENTS INC.
    Inventors: Osama M. Musa, Kolazi S. Narayanan
  • Publication number: 20140039090
    Abstract: This invention provides a process of making a stable aqueous dispersion including concentrated, finely divided particles of a water insoluble biocide active, which comprises grinding the biocide in water in the presence of a non-ionic polymeric dispersant and optionally a co-dispersant, and compositions prepared by this process.
    Type: Application
    Filed: October 9, 2013
    Publication date: February 6, 2014
    Applicant: ISP Investments Inc.
    Inventors: Raman Premachandran, Blanca Gomez, Kolazi S. Narayanan, Karen Winkowski
  • Publication number: 20130196853
    Abstract: A matrix composition capable of forming an emulsion/micro-emulsion comprising an emulsifiable matrix, essentially free of alkyl pyrrolidone and alkoxylated alcohol, comprising: (i) a long chain substituted amide; (ii) a surface active agent; and (iii) optionally, an organic diluent.
    Type: Application
    Filed: January 10, 2011
    Publication date: August 1, 2013
    Inventors: Kolazi S. Narayanan, Domingo Jon, Jayanti V. Patel
  • Publication number: 20130065759
    Abstract: A preformed concentrate, capable of forming emulsion/micro-emulsion upon dilution with water, for providing peripheral desiccating effect on leaves/crops comprising: (i) a water insoluble film forming polymer; (ii) a long chain substituted amide; and (iii) an oil soluble surfactant.
    Type: Application
    Filed: March 10, 2011
    Publication date: March 14, 2013
    Applicant: ISP Investments Inc.
    Inventor: Kolazi S. Narayanan
  • Publication number: 20120171272
    Abstract: A stabilized biocidal dispersion comprising a biocide coated or adsorbed onto stable sub-micron carrier particles and wherein sub-micronized particles are stabilized by additives having polar moieties, hydrophobic and hydrophilic segments. The sub-micron particles are selected from metal oxides like zinc oxide, titanium dioxide, cerium dioxide and silica, alumina, minerals, clays, stilbene and sub-micron carbons. Exemplary biocides include carbamates, isothiazolones, pyrithione chelates and/or trizoles. Also disclosed is a process for preparing stabilized sub-micronized carrier particles.
    Type: Application
    Filed: June 9, 2010
    Publication date: July 5, 2012
    Inventors: Raman Premachandran, Kolazi S. Narayanan, Blanca Gomez, Karen Winkowski