Patents by Inventor Sachin Bobade

Sachin Bobade 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: 20240002571
    Abstract: The disclosed subject matter relates to a block polymer comprising structure (1): (A)-(C)-(B), wherein (A) is a first polymer block segment comprising a block segment selected from structure (1a), structure (1b), and a mixture of structures (1a) an (1b), (C) is a spacer moiety comprising structure (1c); and wherein B) is a second polymer block segment comprising repeat units derived from either an alkyl 2-methylenealkanoate, a lactone; a cyclic carbonate, an oxirane, or an oxetane. The disclose matter also pertains to a composition of said block polymer in a spin casting solvent and using this solution in a process of directed self-assembly.
    Type: Application
    Filed: December 15, 2021
    Publication date: January 4, 2024
    Inventors: Durairaj BASKARAN, Md S. RAHMAN, Sachin BOBADE, Edward W. NG, Victor MONREAL, EunJeong JEONG
  • Publication number: 20220389135
    Abstract: One aspect of this invention is a novel functional polymer having a polydispersity from 1 to about 1.12 comprising at least one reactive moiety, selected from a moiety comprising at least one N-coordinative functional group having at least one lone pair of electrons, a moiety comprising a dialkylsilyl group, or a mixture of both groups, wherein said reactive moiety is present in said functional styrenic polymer either on a repeat unit, on an end group or on both, and said N-coordinative functional group is either a monodentate N-coordinative functional group, a polydendate N-coordinative group or a mixture of thereof, and said monodentate coordinative functional group is an azide moiety (—N3) or a cyano moiety (—CN). Another aspect of this invention is the use of these novel polymer to selectively deposit a DSA directing layer on a metallic substrate.
    Type: Application
    Filed: November 24, 2020
    Publication date: December 8, 2022
    Inventors: Durairaj BASKARAN, MD S. RAHMAN, Sachin BOBADE
  • Patent number: 11031237
    Abstract: The present invention relates to new aromatic-amino functional siloxanes, which are compounds comprising one or two tail groups X2, and a linking group L of structure (2) linking each said tail group to said head group, wherein the head group X has structure (1), containing an optional organic moiety Y, wherein the attachment point of said tail group X2 through said linking group L to the head group X1, may be, at positions a, b, c, d, or e. Another aspect of this invention are compositions containing these novel aromatic amino functional siloxane. A further aspect of this invention are compositions comprised of the above novel aromatic-amino functional siloxanes, and also the composition resulting from the aging of these compositions at room temperature for about 1 day to about 4 weeks.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: June 8, 2021
    Assignee: Merck Patent GMbH
    Inventors: Sachin Bobade, Orest Polishchuk, Munirathna Padmanaban, Durairaj Baskaran
  • Publication number: 20200273701
    Abstract: The present invention relates to new aromatic-amino functional siloxanes, which are compounds comprising one or two tail groups X2, and a linking group L of structure (2) linking each said tail group to said head group, wherein the head group X has structure (1), containing an optional organic moiety Y, wherein the attachment point of said tail group X2 through said linking group L to the head group X1, may be, at positions a, b, c, d, or e. Another aspect of this invention are compositions containing these novel aromatic amino functional siloxane. A further aspect of this invention are compositions comprised of the above novel aromatic-amino functional siloxanes, and also the composition resulting from the aging of these compositions at room temperature for about 1 day to about 4 weeks.
    Type: Application
    Filed: October 23, 2018
    Publication date: August 27, 2020
    Inventors: Sachin BOBADE, Orest POLISHCHUK, Munirathna PADMANABAN, Durairaj BASKARAN
  • Patent number: 10287402
    Abstract: A polycarbonate-polyolefin block copolymer and a process to form a polycarbonate-polyolefin block copolymer by combining mono- or di-hydroxyaryl with vinyl/vinylidene terminated polyolefin to form a polyolefin hydroxyaryl moiety, and combining the polyolefin hydroxyaryl moiety with di-hydroxyaryl and di-substituted carbonyl monomers to form a polycarbonate-polyolefin block copolymer.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: May 14, 2019
    Assignees: ExxonMobil Chemical Patents Inc., Virginia Tech Intellectual Properties, Inc.
    Inventors: Yong Yang, Donna S. Davis, Peijun Jiang, Timothy E. Long, Sachin Bobade
  • Publication number: 20170313825
    Abstract: A polycarbonate-polyolefin block copolymer and a process to form a polycarbonate-polyolefin block copolymer by combining mono- or di-hydroxyaryl with vinyl/vinylidene terminated polyolefin to form a polyolefin hydroxyaryl moiety, and combining the polyolefin hydroxyaryl moiety with di-hydroxyaryl and di-substituted carbonyl monomers to form a polycarbonate-polyolefin block copolymer.
    Type: Application
    Filed: April 12, 2017
    Publication date: November 2, 2017
    Inventors: Yong Yang, Donna S. Davis, Peijun Jiang, Timothy E. Long, Sachin Bobade