Patents by Inventor Sunanda BISWAS

Sunanda BISWAS 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: 20220267534
    Abstract: Present invention is related to a hydrophilic silicone polymer prepared by using an olefinic unsaturated polyoxyalkylene epoxy compound. An amine compound having at least one tertiary amine group which may be further reacted with the polyoxyalkylene epoxy siloxane molecule is used further for preparing such hydrophilic ABA molecule for improving both the feel and hydrophilicity in any natural or artificial fiber, thus solving the most challenging problem of balancing i.e. improving both hydrophilicity and feel property in the field of fabric or fiber treatment. The present invention also relates to the process of preparation of the said hydrophilic silicone polymer and its emulsion.
    Type: Application
    Filed: June 26, 2020
    Publication date: August 25, 2022
    Inventors: Sougata BHATTACHARYA, Sunanda BISWAS
  • 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
  • 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