Patents by Inventor Mahesh Sawant

Mahesh Sawant 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).

  • Aminoalcohol compounds and their use as zero or low VOC additives for paints and coatings
    Patent number: 9605163
    Abstract: Provided are aminoalcohol compounds for use as additives for paints and coatings. The compounds are of the formula (I): wherein x, R, R1, R2, R3, R4, R5, R6, and RA are as defined herein.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: March 28, 2017
    Assignee: ANGUS CHEMICAL COMPANY
    Inventors: Asghar Peera, Raymond J. Swedo, G. David Green, Esin G. Busche, John W. Quinn, Shreyas Bhide, Mahesh Sawant
  • Hydrocarbon feed flexible high pressure nitration plant design
    Patent number: 9504933
    Abstract: Disclosed is an apparatus for synthesizing nitroalkanes by reaction of a hydrocarbon feedstock with aqueous nitric acid. The apparatus may be designed such that it can synthesize more than one nitroalkane using the same equipment.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: November 29, 2016
    Assignee: ANGUS CHEMICAL COMPANY
    Inventors: Mahesh Sawant, Daniel M. Trauth, John G. Pendergast, Jr., Ravindra S. Dixit
  • Process for nitroalkane recovery by aqueous phase recycle to nitration reactor
    Patent number: 9340486
    Abstract: Disclosed are a process and an apparatus for synthesizing nitroalkanes by reaction of a hydrocarbon feedstock with aqueous nitric acid. Energy and capital costs may be reduced by recycling a majority of the aqueous phase back to the reactor.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: May 17, 2016
    Assignee: ANGUS CHEMICAL COMPANY
    Inventors: Mahesh Sawant, Daniel M. Trauth, John G. Pendergast, Jr.
  • Alkyl hydroxylamine compounds and their use for shortstopping free radical polymerizations
    Patent number: 9309331
    Abstract: This invention provides a method for shortstopping free radical polymerization reactions using a shortstopping agent comprising at least two alkyl hydroxylamines (AHAs) selected from the group consisting of primary AHAs, a mixture of at least one of each of primary and secondary AHAs, and salts thereof. A method for producing elastomers using the aforesaid shortstopping agents is also provided.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: April 12, 2016
    Assignee: ANGUS CHEMICAL COMPANY
    Inventors: Charles E. Coburn, Mrunalini S. Dhamdhere, Kaustubh Gupte, Mahesh Sawant
  • Alkyl hydroxylamine compounds and their use for shortstopping free radical polymerizations
    Patent number: 9234052
    Abstract: This invention provides a method for shortstopping free radical polymerization reactions using combinations of N-isopropylhydroxylamine (IPHA) or salts thereof with either primary or secondary alkyl hydroxylamines, or with at least two primary alkyl hydroxylamines. A method for producing elastomers using the aforesaid shortstopping agents is also provided.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: January 12, 2016
    Assignee: ANGUS CHEMICAL COMPANY
    Inventors: Kaustubh Gupte, Charles E. Coburn, Mrunalini S. Dhamdhere, Mahesh Sawant
  • Apparatus and process for nitration selectivity flexibility enabled by azeotropic distillation
    Patent number: 9133094
    Abstract: Disclosed are processes and apparatuses for concentrating at least one organic acid using an alkyl acetate as an entrainer. The processes and apparatuses may use the same alkyl acetate as an entrainer to concentrate a mixture of organic acids.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: September 15, 2015
    Assignee: ANGUS CHEMICAL COMPANY
    Inventors: Mahesh Sawant, Daniel M. Trauth, John G. Pendergast, Jr.
  • ALKYL HYDROXYLAMINE COMPOUNDS AND THEIR USE FOR SHORTSTOPPING FREE RADICAL POLYMERIZATIONS
    Publication number: 20150252121
    Abstract: This invention provides a method for shortstopping free radical polymerization reactions using a shortstopping agent comprising at least two alkyl hydroxylamines (AHAs) selected from the group consisting of primary AHAs, a mixture of at least one of each of primary and secondary AHAs, and salts thereof. A method for producing elastomers using the aforesaid shortstopping agents is also provided.
    Type: Application
    Filed: September 23, 2013
    Publication date: September 10, 2015
    Inventors: Charles E. Coburn, Mrunalini S. Dhamdhere, Kaustubh Gupte, Mahesh Sawant
  • ALKYL HYROXYLAMINE COMPOUNDS AND THEIR USE FOR SHORTSTOPPING FREE RADICAL POLYMERIZATIONS
    Publication number: 20150166689
    Abstract: This invention provides a method for shortstopping free radical polymerization reactions using combinations of N-isopropylhydroxylamine (IPHA) or salts thereof with either primary or secondary alkyl hydroxylamines, or with at least two primary alkyl hydroxylamines. A method for producing elastomers using the aforesaid shortstopping agents is also provided.
    Type: Application
    Filed: June 13, 2013
    Publication date: June 18, 2015
    Inventors: Kaustubh Gupte, Charles E. Coburn, Mrunalini S. Dhamdhere, Mahesh Sawant
  • AMINOALCOHOL COMPOUNDS AND THEIR USE AS ZERO OR LOW VOC ADDITIVES FOR PAINTS AND COATINGS
    Publication number: 20140235776
    Abstract: Provided are aminoalcohol compounds for use as additives in paints and coatings. The compounds are of the formula I: wherein p, m, n, R, R1, R2, R3, R4, R5, and R6 are as defined herein.
    Type: Application
    Filed: July 23, 2012
    Publication date: August 21, 2014
    Applicants: ANGUS CHEMICAL COMPANY, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Asghar Peera, Raymond J. Swedo, G. David Green, Esin G. Busche, John W. Quinn, Shreyas Bhide, Mahesh Sawant
  • AMINOALCOHOL COMPOUNDS AND THEIR USE AS ZERO OR LOW VOC ADDITIVES FOR PAINTS AND COATINGS
    Publication number: 20140130714
    Abstract: Provided are aminoalcohol compounds for use as additives for paints and coatings. The compounds are of the formula (I): wherein x, R, R1, R2, R3, R4, R5, R6, and RA are as defined herein.
    Type: Application
    Filed: July 23, 2012
    Publication date: May 15, 2014
    Applicants: ANGUS CHEMICAL COMPANY, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Asghar Peera, Raymond J. Swedo, G. David Green, Esin G. Busche, John W. Quinn, Shreyas Bhide, Mahesh Sawant
  • Apparatus and Process for Nitration Selectivity Flexibility Enabled by Azeotropic Distillation
    Publication number: 20140031594
    Abstract: Disclosed are processes and apparatuses for concentrating at least one organic acid using an alkyl acetate as an entrainer. The processes and apparatuses may use the same alkyl acetate as an entrainer to concentrate a mixture of organic acids.
    Type: Application
    Filed: April 5, 2012
    Publication date: January 30, 2014
    Applicants: ANGUS CHEMICAL COMPANY, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Mahesh Sawant, Daniel M. Trauth, John G. Pendergast
  • HYDROCARBON FEED FLEXIBLE HIGH PRESSURE NITRATION PLANT DESIGN
    Publication number: 20130343960
    Abstract: Disclosed is an apparatus for synthesizing nitroalkanes by reaction of a hydrocarbon feedstock with aqueous nitric acid. The apparatus may be designed such that it can synthesize more than one nitroalkane using the same equipment.
    Type: Application
    Filed: August 22, 2013
    Publication date: December 26, 2013
    Applicants: ANGUS CHEMICAL COMPANY, DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Mahesh Sawant, Daniel M. Trauth, John G. Pendergast, Ravindra S. Dixit
  • Hydrocarbon feed flexible high pressure nitration plant design
    Patent number: 8558039
    Abstract: Disclosed is an apparatus for synthesizing nitroalkanes by reaction of a hydrocarbon feedstock with aqueous nitric acid. The apparatus may be designed such that it can synthesize more than one nitroalkane using the same equipment.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: October 15, 2013
    Assignees: Dow Global Technologies LLC, ANGUS Chemical Company
    Inventors: Mahesh Sawant, Daniel M. Trauth, John G. Pendergast, Jr., Ravindra S. Dixit
  • Process For Nitroalkane Recovery By Aqueous Phase Recycle To Nitration Reactor
    Publication number: 20130216443
    Abstract: Disclosed are a process and an apparatus for synthesizing nitroalkanes by reaction of a hydrocarbon feedstock with aqueous nitric acid. Energy and capital costs may be reduced by recycling a majority of the aqueous phase back to the reactor.
    Type: Application
    Filed: April 1, 2013
    Publication date: August 22, 2013
    Applicants: ANGUS CHEMICAL COMPANY, DOW GLOBAL TECHNOLOGIES INC.
    Inventors: Mahesh Sawant, Daniel M. Trauth, John G. Pendergast
  • Process For Downstream Recovery Of Nitroalkane Using Dividing Wall Column
    Publication number: 20130189164
    Abstract: Disclosed are a process and apparatus for synthesizing nitroalkanes by reaction of a hydrocarbon feedstock with aqueous nitric acid. Energy and capital costs may be reduced by using a dividing wall column.
    Type: Application
    Filed: March 8, 2013
    Publication date: July 25, 2013
    Applicants: ANGUS Chemical Company, Dow Global Technologies Inc.
    Inventors: Mahesh Sawant, Daniel M. Trauth, John G. Pendergast
  • Process for nitroalkane recovery by aqueous phase recycle to nitration reactor
    Patent number: 8431754
    Abstract: Disclosed are a process and an apparatus for synthesizing nitroalkanes by reaction of a hydrocarbon feedstock with aqueous nitric acid. Energy and capital costs may be reduced by recycling a majority of the aqueous phase back to the reactor.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: April 30, 2013
    Assignees: Dow Global Technologies LLC, ANGUS Chemical Company
    Inventors: Mahesh Sawant, Daniel M. Trauth, John G. Pendergast, Jr.
  • Process for downstream recovery of nitroalkane using dividing wall column
    Patent number: 8410323
    Abstract: Disclosed are a process and apparatus for synthesizing nitroalkanes by reaction of a hydrocarbon feedstock with aqueous nitric acid. Energy and capital costs may be reduced by using a dividing wall column.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: April 2, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Mahesh Sawant, Daniel M. Trauth, John G. Pendergast, Jr.
  • HYDROCARBON FEED FLEXIBLE HIGH PRESSURE NITRATION PLANT DESIGN
    Publication number: 20110160496
    Abstract: Disclosed is an apparatus for synthesizing nitroalkanes by reaction of a hydrocarbon feedstock with aqueous nitric acid. The apparatus may be designed such that it can synthesize more than one nitroalkane using the same equipment.
    Type: Application
    Filed: November 22, 2010
    Publication date: June 30, 2011
    Applicants: DOW GLOBAL TECHNOLOGIES INC., ANGUS CHEMICAL COMPANY
    Inventors: Mahesh SAWANT, Daniel M. Trauth, John G. Pendergast, JR., Ravindra S. Dixit
  • Process For Nitroalkane Recovery By Aqueous Phase Recycle To Nitration Reactor
    Publication number: 20110092748
    Abstract: Disclosed are a process and an apparatus for synthesizing nitroalkanes by reaction of a hydrocarbon feedstock with aqueous nitric acid. Energy and capital costs may be reduced by recycling a majority of the aqueous phase back to the reactor.
    Type: Application
    Filed: September 10, 2010
    Publication date: April 21, 2011
    Applicants: DOW GLOBAL TECHNOLOGIES INC., ANGUS CHEMICAL COMPANY
    Inventors: Mahesh Sawant, Daniel M. Trauth, John G. Pendergast, JR.
  • Process For Downstream Recovery Of Nitroalkane Using Dividing Wall Column
    Publication number: 20110092749
    Abstract: Disclosed are a process and apparatus for synthesizing nitroalkanes by reaction of a hydrocarbon feedstock with aqueous nitric acid. Energy and capital costs may be reduced by using a dividing wall column.
    Type: Application
    Filed: September 10, 2010
    Publication date: April 21, 2011
    Applicants: DOW GLOBAL TECHNOLOGIES INC., ANGUS CHEMICAL COMPANY
    Inventors: Mahesh Sawant, Daniel M. Trauth, John G. Pendergast, JR.