Patents by Inventor Sudhanwa Dewasthale

Sudhanwa Dewasthale 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: 20240059825
    Abstract: A polyolefin-based laminating adhesive composition for use in producing a mechanical recyclable material, the adhesive composition including a mixture of: (a) at least one saturated polyolefin polyol; and (b) at least one aliphatic multi-functional isocyanate compound; a process for producing the above adhesive composition; a mechanically recyclable multi-layer laminate including: (A) at least one first film substrate layer; (B) at least one second film substrate layer; and (C) at least one layer of the above polyolefin-based laminating adhesive composition; wherein the at least one first film substrate layer is bonded to the at least one second film substrate layer via the adhesive composition layer; a process for producing the above mechanically recyclable multi-layer laminate; and a packaging article made from the above mechanically recyclable multi-layer laminate.
    Type: Application
    Filed: October 1, 2020
    Publication date: February 22, 2024
    Inventors: Yinzhong Guo, Tuoqi Li, Sudhanwa Dewasthale, Jian Wang, Thorsten Schmidt
  • Publication number: 20220363965
    Abstract: A solvent-based polyurethane retort adhesive system for producing laminates including: (A) at least one isocyanate compound, Component A, comprising: a blend of: (i) at least one aliphatic-based isocyanate and (ii) at least one aromatic-based isocyanate; and (B) at least one isocyanate-reactive component, Component B, comprising: (i) at least one phosphate ester compound and (ii) at least one polyether polyol having an average molecular weight of less than 1,500 g/mol; a process for producing the above adhesive; a multi-layer laminate product including the above adhesive; and a process for producing a laminate product using the above adhesive.
    Type: Application
    Filed: May 19, 2020
    Publication date: November 17, 2022
    Inventors: JIE WU, SUDHANWA DEWASTHALE, MAI CHEN
  • Patent number: 9499671
    Abstract: Preparation and use of organopolysiloxanes having carbinol groups that are bonded to the silicon atom through carbamate-containing groups. These hydrophilic polysiloxanes can be made to completely dissolve in water or behave as amphoteric surfactants by controlling the concentration of the carbinol radicals and the molecular weight of the polysiloxane.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: November 22, 2016
    Inventors: Ramani Narayan, Daniel Graiver, Sudhanwa Dewasthale
  • Publication number: 20160108179
    Abstract: Preparation and use of organopolysiloxanes having carbinol groups that are bonded to the silicon atom through carbamate-containing groups. These hydrophilic polysiloxanes can be made to completely dissolve in water or behave as amphoteric surfactants by controlling the concentration of the carbinol radicals and the molecular weight of the polysiloxane.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 21, 2016
    Inventors: Ramani Narayan, Daniel Graiver, Sudhanwa Dewasthale
  • Patent number: 9000103
    Abstract: A composition of matter comprising an interpenetrating polymer network of a combination of a silanol-containing polysiloxane phase and a silylated triglyceride oil phase. The two phases are mixed and covalently bound to each other via siloxane crosslinks. A method for producing interpenetrating polymer networks. The method comprises providing triglycerides from oils or fats and reacting the triglycerides with a reactive silane to form a silylated triglyceride oil. The silylated triglyceride oil and a silanol terminated polysiloxane are emulsified with water in a predetermined ratio. Thereafter, crosslinking agents are added and the water is removed from the emulsions providing siloxane crosslinks between the two intimately mixed immiscible phases.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: April 7, 2015
    Inventors: Ramani Narayan, Daniel Gravier, Sudhanwa Dewasthale, Elodie Halbot
  • Publication number: 20140194567
    Abstract: A composition of matter comprising an interpenetrating polymer network of a combination of a silanol-containing polysiloxane phase and a silylated triglyceride oil phase. The two phases are mixed and covalently bound to each other via siloxane crosslinks. A method for producing interpenetrating polymer networks. The method comprises providing triglycerides from oils or fats and reacting the triglycerides with a reactive silane to form a silylated triglyceride oil. The silylated triglyceride oil and a silanol terminated polysiloxane are emulsified with water in a predetermined ratio. Thereafter, crosslinking agents are added and the water is removed from the emulsions providing siloxane crosslinks between the two intimately mixed immiscible phases.
    Type: Application
    Filed: August 13, 2013
    Publication date: July 10, 2014
    Inventors: Ramani Narayan, Daniel Gravier, Sudhanwa Dewasthale, Elodie Halbot