Patents by Inventor Prashant Tatake

Prashant Tatake 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: 10759891
    Abstract: A method for making a copolymer polyol includes (a) forming a pre-compounded thermoplastic polymeric composition by compounding from 10 wt % to 90 wt % of a solid functional additive component with from 10 wt % to 90 wt % of a polystyrene component, (b) melting the pre-compounded thermoplastic polymeric composition to form a melted thermoplastic polymeric composition, (c) combining the melted thermoplastic polymeric composition with a carrier polyol component in the presence of a stabilizer component to form a pre-mixture that includes the pre-compounded thermoplastic polymeric composition dispersed within a continuous phase of the carrier polyol component, and (d) cooling the pre-mixture to form the copolymer polyol.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: September 1, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Hanno R. Van der Wal, Paul Cookson, Francois M. Casati, Antoon De Smet, Sven Claessens, Prashant Tatake, Bart Noordover, Brian Anthony, Jozef Van Dun
  • Patent number: 10428454
    Abstract: The present invention provides strategies to improve the moisture management properties of textiles while retaining high comfort levels. The treatments also help to protect textiles against microbial growth. The treatment strategies of the present invention are based at least in part on the use of cationic bis-imidazoline(s) and their salts. Quaternized bis-imidazoline cations and their salts are particularly preferred.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: October 1, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Sandeep Nikam, Ritesh Gulabani, Yogaraj Nabar, Prashant Tatake
  • Patent number: 10329672
    Abstract: The present invention provides corrosion inhibiting compositions that incorporate at least one bis-imidazoline compound. In the practice of the present invention, a tetramine admixture enriched with respect to linear tetramine is used to prepare the bis-imidazoline compound. “Enriched” means at least 70 weight percent and up to 100% of the tetramine species included in the admixture includes a linear tetramine such as L-TETA.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: June 25, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Ritesh Gulabani, Stephen W. King, Prashant Tatake
  • Publication number: 20180215855
    Abstract: A method for making a copolymer polyol includes (a) forming a pre-compounded thermoplastic polymeric composition by compounding from 10 wt % to 90 wt % of a solid functional additive component with from 10 wt % to 90 wt % of a polystyrene component, (b) melting the pre-compounded thermoplastic polymeric composition to form a melted thermoplastic polymeric composition, (c) combining the melted thermoplastic polymeric composition with a carrier polyol component in the presence of a stabilizer component to form a pre-mixture that includes the pre-compounded thermoplastic polymeric composition dispersed within a continuous phase of the carrier polyol component, and (d) cooling the pre-mixture to form the copolymer polyol.
    Type: Application
    Filed: September 7, 2016
    Publication date: August 2, 2018
    Applicant: Dow Global Technologies LLC
    Inventors: Hanno R. Van der Wal, Paul Cookson, Francois M. Casati, Antoon De Smet, Sven Claessens, Prashant Tatake, Bart Noordover, Brian Anthony, Jozef Van Dun
  • Patent number: 9631131
    Abstract: The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent comprising a polyaminopolyamide-epichlorohydrin resin, preferably the polyamino polyamide-epichlorohydrin resin is a reaction product of an aliphatic polyamine, an aliphatic polycarboxylic acid, and epichlorohydrin. The shale hydration inhibition agent should be present in the aqueous based drilling fluid in sufficient concentration to reduce the reactivity, such as swelling, of clays and shale when exposed to water-based drilling fluids.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: April 25, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Cole A. Witham, Michael K. Poindexter, Stephen W. King, Prashant Tatake
  • Publication number: 20160333484
    Abstract: The present invention provides corrosion inhibiting compositions that incorporate at least one bis-imidazoline compound. In the practice of the present invention, a tetramine admixture enriched with respect to linear tetramine is used to prepare the bis-imidazoline compound. “Enriched” means at least 70 weight percent and up to 100% of the tetramine species included in the admixture includes a linear tetramine such as L-TETA.
    Type: Application
    Filed: December 12, 2014
    Publication date: November 17, 2016
    Inventors: Ritesh GULABANI, Stephen W. KING, Prashant TATAKE
  • Publication number: 20150353807
    Abstract: The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent comprising a polyaminopolyamide-epichlorohydrin resin, preferably the polyamino polyamide-epichlorohydrin resin is a reaction product of an aliphatic polyamine, an aliphatic polycarboxylic acid, and epichlorohydrin. The shale hydration inhibition agent should be present in the aqueous based drilling fluid in sufficient concentration to reduce the reactivity, such as swelling, of clays and shale when exposed to water-based drilling fluids.
    Type: Application
    Filed: January 27, 2014
    Publication date: December 10, 2015
    Applicants: The Dow Chemical Company, Dow Chemical International PVT. LTD., Dow International Technology Corporation
    Inventors: Cole A. Witham, Michael K. Poindexter, Stephen W. King, Prashant Tatake
  • Publication number: 20150336848
    Abstract: A grinding aid composition for improving the efficiency of cement grinding. The grinding aid composition comprises: an alkanolamine compound that is a primary alkanolamine compound, a secondary alkanolamine compound, or a mixture thereof; and a glycol.
    Type: Application
    Filed: May 31, 2013
    Publication date: November 26, 2015
    Applicant: Dow Global Technologies LLC
    Inventors: Ritesh Gulabani, Prashant Tatake
  • Patent number: 8822578
    Abstract: The present disclosure is directed to a single phase acetylated castor component (SP-ACC). An acetylated castor component is purified to produce the SP-ACC which contains a reduced amount of, or no, insoluble component(s) therein. The SP-ACC enhances the performance and properties of plasticizers of which it is a component.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: September 2, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Bharat I. Chaudhary, Beate Sczekalla, Abhijit Ghosh-Dastidar, Yang Cheng, Prashant Tatake, Raymond M. Collins
  • Publication number: 20140000933
    Abstract: The present disclosure is directed to a single phase acetylated castor component (SP-ACC). An acetylated castor component is purified to produce the SP-ACC which contains a reduced amount of, or no, insoluble component(s) therein. The SP-ACC enhances the performance and properties of plasticizers of which it is a component.
    Type: Application
    Filed: September 6, 2013
    Publication date: January 2, 2014
    Applicant: Dow Global Technologies LLC
    Inventors: Bharat I. Chaudhary, Beate Sczekalla, Abhijit Ghosh-Dastidar, Yang Cheng, Prashant Tatake, Raymond M. Collins
  • Patent number: 8552098
    Abstract: The present disclosure is directed to a single phase acetylated castor component (SP-ACC). An acetylated castor component is purified to produce the SP-ACC which contains a reduced amount of, or no, insoluble component(s) therein. The SP-ACC enhances the performance and properties of plasticizers of which it is a component.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: October 8, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Bharat I. Chaudhary, Beate Sczekalla, Abhijit Ghosh-Dastidar, Yang Cheng, Prashant Tatake, Raymond M. Collins
  • Publication number: 20110076502
    Abstract: The present disclosure is directed to a single phase acetylated castor component (SP-ACC). An acetylated castor component is purified to produce the SP-ACC which contains a reduced amount of, or no, insoluble component(s) therein. The SP-ACC enhances the performance and properties of plasticizers of which it is a component.
    Type: Application
    Filed: June 23, 2010
    Publication date: March 31, 2011
    Inventors: Bharat I. Chaudhary, Beate Sczekalla, Abhijit Ghosh-Dastidar, Yang Cheng, Prashant Tatake, Raymond M. Collins
  • Publication number: 20060004224
    Abstract: A method of preparing a halophthalic acid is disclosed which comprises the steps of contacting in a liquid phase reaction mixture at least one halogen-substituted ortho-xylene with oxygen and acetic acid at a temperature in a range between about 120° C. and about 220° C. in the presence of a catalyst system yielding a product mixture comprising less than 10 percent halogen-substituted ortho-xylene starting material, a halophthalic acid product, and less than about 10,000 ppm halobenzoic acid and less than about 1000 ppm halophthalide by-products based on a total amount of halophthalic acid present in the product mixture. In addition methods for the preparation of halophthalic anhydride, and recovery of high purity acetic acid from an aqueous acetic acid stream comprising HCl, which is generated during the preparation of the halophthalic acid are also disclosed.
    Type: Application
    Filed: June 29, 2005
    Publication date: January 5, 2006
    Inventors: Robert Colborn, David Hall, Peter Koch, Bernd Demuth, Thomas Wessel, KarlErnst Mack, Prashant Tatake, Utpal Vakil, Shyamal Gondkar, John Pace, Kwang Won
  • Publication number: 20050222466
    Abstract: A process for producing a phenol product generally comprises a first step comprising reacting in a first reactor a feed stream comprising cumene hydroperoxide and water with an acid catalyst to produce an effluent comprising the phenol product, acetone, and at least 1% by weight residual cumene hydroperoxide, and a second step comprising passing the effluent into a second reactor and decomposing the residual cumene hydroperoxide, wherein during said process the ratio of phenol to acetone is maintained at a molar ratio of greater than 1:1, and wherein the water in each of the first and second steps is present in an amount more than 0 and less than or equal to 5 weight percent based on the total weight of the feed stream or effluent, and wherein the process is continuous.
    Type: Application
    Filed: March 29, 2005
    Publication date: October 6, 2005
    Inventors: Prashant Tatake, Pramod Kumbhar, Bharat Singh, John Fulmer, Sabyasachi Mandal, Arun Kumar, Rupesh Pawar
  • Publication number: 20050137429
    Abstract: A process for producing a purified phenol stream generally includes contacting a phenol stream containing an initial concentration of hydroxyacetone and methylbenzofuran with an acidic ion exchange resin at a temperature of 50° C. to 100° C. to concurrently reduce the initial concentration of the hydroxyacetone and the methylbenzofuran in the phenol stream to produce the purified phenol stream.
    Type: Application
    Filed: January 15, 2004
    Publication date: June 23, 2005
    Inventors: Prashant Tatake, Umesh Hasyagar, Pramond Kumbhar, Bharat Singh, John Fulmer