Patents by Inventor Amit Kumar Paul

Amit Kumar Paul 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: 11692154
    Abstract: The invention to provide an foamable silicone composition, that would easily integrate or mix with the powder or liquid detergent composition having reduced active ingredient having enhanced or similar detergency effect i.e. foaming and dirt removal characteristics and having no negative effect on the detergency and the preferred foaming nature of the detergent during the washing cycle. The foamable silicone composition comprising a silicone composition comprising a siloxane comprising a polyoxyalkylene group having 19 to 30 oxyalkylene group, with the proviso that the siloxane contain at least one oxyalkylene radical per molecule.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: July 4, 2023
    Assignee: WACKER METROARK CHEMICALS PVT LTD
    Inventors: Amit Kumar Paul, Kalon Chatterjee, Arjun Ghosh, Pallab Mondal
  • Publication number: 20210309936
    Abstract: The invention to provide an foamable silicone composition, that would easily integrate or mix with the powder or liquid detergent composition having reduced active ingredient having enhanced or similar detergency effect i.e. foaming and dirt removal characteristics and having no negative effect on the detergency and the preferred foaming nature of the detergent during the washing cycle. The foamable silicone composition comprising a silicone composition comprising a siloxane comprising a polyoxyalkylene group having 19 to 30 oxyalkylene group, with the proviso that the siloxane contain at least one oxyalkylene radical per molecule.
    Type: Application
    Filed: September 20, 2019
    Publication date: October 7, 2021
    Inventors: Amit Kumar Paul, Kalon Chatterjee, Arjun Ghosh, Pallab Mondal
  • Patent number: 10954342
    Abstract: Hydrophilic amino-organopolysiloxane softener compositions are prepared by reacting a hydrogen siloxane, a mixture of an allyl epoxy and optionally an allyl polyether in presence of catalyst comprising platinum and then reacting the epoxy functional siloxane product with a polyetheramine to obtain an amino-organopolysiloxane. The hydrophilic amino-organopolysiloxane softener composition is preferably used in the form of an emulsion. Textile fabrics treated by the inventive composition have strong hydrophilic performance and enhanced smoothness and feel.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: March 23, 2021
    Assignee: WACKER CHEMIE AG
    Inventors: Amit Kumar Paul, Sougata Bhattacharya, Sunanda Biswas
  • Patent number: 10766825
    Abstract: A composition comprising a self-dispersible mixture additive composition comprising a alkylalkoxysilane of formula (RO)4-nSiR?n, or its hydrolysate or mixture thereof, where, R is same or different C1-C20, R? is same or different C1-C20; mixture of non-ionic emulsifier of HLB value between 8 and 20. The self-dispersible mixture additive composition is obtained by mixing the alkyltrialkoxysilane with a mixture of non-ionic emulsifier. The emulsion of the self-dispersible mixture additive composition is formed by mixing appropriate amount of an aqueous solvent to the self-dispersible mixture additive composition, and addition of thus formed emulsion to a porous product preferably dry cement to render uniform and long lasting hydrophobic property of the final product made of the porous product.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: September 8, 2020
    Assignee: WACKER METROARK CHEMICALS PVT. LTD.
    Inventors: Amit Kumar Paul, Abhijit Tarafdar
  • Patent number: 10576027
    Abstract: Present invention is related to an oil-in-water emulsion comprising a silicone mixture, a mixture of emulsifier having HLB value from 10 to 16, and the particle size of the silicone mixture in the emulsion is less than 350 nm. A method of preparing the said emulsion comprising mixing a trialkylsilyl terminated dialkylpolysiloxane of viscosity of from 40,000 to less than 100,000 mPa·s at 25° C. and an amino silicone of viscosity of from 1,000 to 15,000 mPa·s at 25° C. and amine value of from 2 to 10 mg of KOH per gram of polymer, at a temperature of 25° C. to obtain a mixed silicone fluid and emulsifying the mixed silicone fluid by using plurality of the non-ionic emulsifier to obtain an oil-in-water emulsion, wherein D50 particle size of less than 350 nm. The invention is to use the emulsion composition in the hair cosmetic composition.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: March 3, 2020
    Assignee: WACKER METROARK CHEMICALS PVT. LTD.
    Inventors: Amit Kumar Paul, Papia Chakraborty
  • Publication number: 20190119450
    Abstract: Hydrophilic amino-organopolysiloxane softener compositions are prepared by reacting a hydrogen siloxane, a mixture of an allyl epoxy and optionally an allyl polyether in presence of catalyst comprising platinum and then reacting the epoxy functional siloxane product with a polyetheramine to obtain an amino-organopolysiloxane. The hydrophilic amino-organopolysiloxane softener composition is preferably used in the form of an emulsion. Textile fabrics treated by the inventive composition have strong hydrophilic performance and enhanced smoothness and feel.
    Type: Application
    Filed: April 19, 2016
    Publication date: April 25, 2019
    Applicant: Wacker Chemie AG
    Inventors: Amit Kumar PAUL, Sougata BHATTACHARYA, Sunanda BISWAS
  • Publication number: 20190054004
    Abstract: The present invention relates to a silicone fluid comprising a glycoside group and oil in water emulsions composition of silicone fluid used in hair care compositions for hair care applications, process for their preparations and their uses. The current invention is to provide an oil-in-water emulsion used as a shampoo additive composition that will help hair care application for shine as well as easy manageability and alignment along with conditioning benefits. The emulsion having a D50 particle size less than 3 micrometers comprising a silicone fluid, a mixture of non-ionic emulsifier; and water, wherein, the silicone fluid is of viscosity of at least 4500 mPa·s at 25° C.
    Type: Application
    Filed: September 10, 2016
    Publication date: February 21, 2019
    Applicant: WACKER METROARK CHEMICALS PVT. LTD.
    Inventors: Amit Kumar PAUL, Ayndrila DUTTA, Sunanda BISWAS
  • Publication number: 20180353396
    Abstract: Present invention is related to an oil-in-water emulsion comprising a silicone mixture, a mixture of emulsifier having HLB value from 10 to 16, and the particle size of the silicone mixture in the emulsion is less than 350 nm. A method of preparing the said emulsion comprising mixing a trialkylsilyl terminated dialkylpolysiloxane of viscosity of from 40,000 to less than 100,000 mPa.s at 25° C. and an amino silicone of viscosity of from 1,000 to 15,000 mPa.s at 25° C. and amine value of from 2 to 10 mg of KOH per gram of polymer, at a temperature of 25° C. to obtain a mixed silicone fluid and emulsifying the mixed silicone fluid by using plurality of the non-ionic emulsifier to obtain an oil-in-water emulsion,wherein D50 particle size of less than 350 nm. The invention is to use the emulsion composition in the hair cosmetic composition.
    Type: Application
    Filed: December 20, 2016
    Publication date: December 13, 2018
    Applicant: WACKER METROARK CHEMICALS PVT. LTD.
    Inventors: Amit Kumar PAUL, Papia CHAKRABORTY
  • Patent number: 10144905
    Abstract: A delayed antifoam composition used in laundry detergent comprising an amino silicone antifoam fluid that selectively use alkyl groups selectively being R and R2 where R is a monovalent C1- to C6-alkyl radical, and R2 is a monovalent C2- to C6-alkyl radical, when in selective combination with a water soluble filler material sufficiently and effectively depresses foam at the rinsing stage without even affecting the foam depression in the washing stage. The process of making delayed antifoam detergent composition. The composition is used in diverse applications such as personal care, hair care, textile, and release and alike.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: December 4, 2018
    Assignee: WACKER METROARK CHEMICALS PVT. LTD.
    Inventor: Amit Kumar Paul
  • Publication number: 20180282234
    Abstract: A composition comprising a self-dispersible mixture additive composition comprising a alkylalkoxysilane of formula (RO)4-nSiR?n, or its hydrolysate or mixture thereof, where, R is same or different C1-C20, R? is same or different C1-C20; mixture of non-ionic emulsifier of HLB value between 8 and 20. The self-dispersible mixture additive composition is obtained by mixing the alkyltrialkoxysilane with a mixture of non-ionic emulsifier. The emulsion of the self-dispersible mixture additive composition is formed by mixing appropriate amount of an aqueous solvent to the self-dispersible mixture additive composition, and addition of thus formed emulsion to a porous product preferably dry cement to render uniform and long lasting hydrophobic property of the final product made of the porous product.
    Type: Application
    Filed: October 12, 2016
    Publication date: October 4, 2018
    Applicant: WACKER METROARK CHEMICALS PVT. LTD.
    Inventors: Amit Kumar PAUL, Abhijit TARAFDAR
  • Publication number: 20170198239
    Abstract: A delayed antifoam composition used in laundry detergent comprising an amino silicone antifoam fluid that selectively use alkyl groups selectively being R and R2 where R is a monovalent C1- to C6-alkyl radical, and R2 is a monovalent C2- to C6-alkyl radical, when in selective combination with a water soluble filler material sufficiently and effectively depresses foam at the rinsing stage without even affecting the foam depression in the washing stage. The process of making delayed antifoam detergent composition. The composition is used in diverse applications such as personal care, hair care, textile, and release and alike.
    Type: Application
    Filed: August 27, 2014
    Publication date: July 13, 2017
    Applicant: WACKER METROARK CHEMICALS PVT. LTD.
    Inventor: Amit Kumar PAUL
  • Patent number: 9255184
    Abstract: A stable highly viscous aminosilicone polymeric fluids and a process for synthesis of stable high viscosity amino silicone emulsion by using the said aminosilicone polymeric fluid by way of a simple and cost-effective manufacturing process yielding emulsions in large scale commercial process with a particle size from 0.01 micron to 150 micron for diverse applications such as in personal care, specially hair care, textile, release and alike.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: February 9, 2016
    Assignee: WACKER METROARK CHEMICALS PVT. LTD.
    Inventor: Amit Kumar Paul
  • Patent number: 8633147
    Abstract: A modified silicone polymer as an anti foam agent, its preparation and detergent formulations involving selective organopolysiloxane antifoam composition/agent for use as fabric wash detergent adapted for excellent antifoaming effect in rinsing cycle with preferred defoaming effect in washing cycles. The anti foam agent for detergent formulations and the like is directed to not only save huge amount of waste water but also help to preserve massive amount precious clean water for desirable favorable use and application. It would provide for detergent formulations and the like which would favor both the washing and rinsing cycles and make washing of clothes/fabrics more convenient and user friendly apart from taking care of avoiding unnecessary wastage of valuable water and saving the environment from unnecessarily wastage of water in hand wash and/or semi automatic machine washing and the like.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: January 21, 2014
    Assignee: Wacker Chemie AG
    Inventors: Amit Kumar Paul, Kalon Chatterjee, Ayndrila Dutta
  • Patent number: 8481476
    Abstract: Modified aminoalkyl- and polyoxyalkylene-functional organopolysiloxanes exhibit delayed antifoaming activity in washing operations, minimizing foaming of rinse water. When applied to a pulverulent carrier, they may also be used in powder detergent formulations.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: July 9, 2013
    Assignee: Wacker Chemie AG
    Inventor: Amit Kumar Paul
  • Publication number: 20120329701
    Abstract: Modified aminoalkyl- and polyoxyalkylene-functional organopolysiloxanes exhibit delayed antifoaming activity in washing operations, minimizing foaming of rinse water. When applied to a pulverulent carrier, they may also be used in powder detergent formulations.
    Type: Application
    Filed: February 21, 2011
    Publication date: December 27, 2012
    Applicant: WACKER CHEMIE AG
    Inventor: Amit Kumar Paul
  • Publication number: 20120065118
    Abstract: A modified silicone polymer as an anti foam agent, its preparation and detergent formulations involving selective organopolysiloxane antifoam composition/agent for use as fabric wash detergent adapted for excellent antifoaming effect in rinsing cycle with preferred defoaming effect in washing cycles. The anti foam agent for detergent formulations and the like is directed to not only save huge amount of waste water but also help to preserve massive amount precious clean water for desirable favorable use and application. It would provide for detergent formulations and the like which would favor both the washing and rinsing cycles and make washing of clothes/fabrics more convenient and user friendly apart from taking care of avoiding unnecessary wastage of valuable water and saving the environment from unnecessarily wastage of water in hand wash and/or semi automatic machine washing and the like.
    Type: Application
    Filed: May 19, 2009
    Publication date: March 15, 2012
    Inventors: Amit Kumar Paul, Kalon Chatterjee, Ayndrila Dutta
  • Publication number: 20120020908
    Abstract: A stable highly viscous aminosilicone polymeric fluids and a process for synthesis of stable high viscosity amino silicone emulsion by using the said aminosilicone polymeric fluid by way of a simple and cost-effective manufacturing process yielding emulsions in large scale commercial process with a particle size from 0.01 micron to 150 micron for diverse applications such as in personal care, specially hair care, textile, release and alike.
    Type: Application
    Filed: March 10, 2010
    Publication date: January 26, 2012
    Applicant: WACKER METROARK CHEMICALS PVT. LTD.
    Inventor: Amit Kumar Paul
  • Patent number: 7745533
    Abstract: Stable high viscosity organopolysiloxane emulsions with particle sizes up to 150 nanometer may be made in a simple and cost-effective manner employing a standard homogenizer, and optional subsequent polymerization of the organopolysiloxan at controlled temperature. A combination of non-ionic emulsifier together with an at least one anionic emulsifier is employed, having an HLB value 12-15, while maintaining a temperature up to 50° C.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: June 29, 2010
    Assignee: Wacker Chemie AG
    Inventor: Amit Kumar Paul
  • Patent number: 6187827
    Abstract: A process for the recovery of methyl polysiloxane in the form of methyl cyclosiloxane of the general formula (R2SiO)x, wherein R is selected from alkyl, alkenyl, aryl and alkaryl groups and “x” is an integer selected from 3-6, in which: a) liquifying silicone feedstock as herein defined is liquefied in a solvent selected from alcohol or siloxane in presence of a catalyst at a temperature of between 110° C.-180° C. to obtain a liquefied mass consisting of a mixture of methyl polysiloxane, solvent and filler; b) adding a metal hydroxide to the liquefied mass so as to convent the fillers to their corresponding silicates, the said silicates thus obtained are removed and the liquid recovered; and c) cyclyzing methyl polysiloxane in the liquid medium thus obtained in the presence of a cracking catalyst in the temperature range of 115-160° C. so as to crack the liquid methyl polysiloxane to a mixture of volatile methyl cyclosiloxane.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: February 13, 2001
    Inventors: Soumitra Ranjan Mukherjee, Amit Kumar Paul