Patents by Inventor Daniel Bar

Daniel Bar 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).

  • PROCESSES FOR PREPARING LITHIUM HYDROXIDE
    Publication number: 20240229266
    Abstract: There are provided system for preparing lithium hydroxide from an aqueous composition comprising a lithium compound and use of the system thereof to prepare lithium hydroxide, the system comprising an electrochemical cell, a pH probe and at least one inlet for receiving acid or base for maintaining pH. For example, the lithium compound can be lithium sulphate and the aqueous composition can be at least substantially maintained at a pH having a value of about 2 to about 4.
    Type: Application
    Filed: December 21, 2023
    Publication date: July 11, 2024
    Applicant: NEMASKA LITHIUM INC.
    Inventors: Jean-François MAGNAN, Guy BOURASSA, Gary PEARSE, Peter SYMONS, J. David GENDERS, Daniel BAR, Marie-Eve LANGEVIN
  • PROCESSES FOR PREPARING LITHIUM HYDROXIDE
    Publication number: 20160032471
    Abstract: There are provided processes for preparing lithium hydroxide that comprise submitting an aqueous composition comprising a lithium compound to an electrolysis or an electrodialysis under conditions suitable for converting at least a portion of the lithium compound into lithium hydroxide. For example, the lithium compound can be lithium sulphate and the aqueous composition can be at least substantially maintained at a pH having a value of about 1 to about 4.
    Type: Application
    Filed: March 17, 2014
    Publication date: February 4, 2016
    Inventors: Jean-François MAGNAN, Guy BOURASSA, Gary PEARSE, Peter SYMONS, David J. GENDERS, Daniel BAR, Marie-Eve LANGEVIN
  • Heat-curable epoxy resin systems having a good reactivity/stability ratio
    Patent number: 5652322
    Abstract: Heat-curable epoxy resin systems comprising(a) at least one epoxy resin,(b) at least one polycarboxylic acid anhydride, and(c) 1,4-diazabicyclo(2,2,2)octane or a C.sub.1 -C.sub.4 alkyl-substituted derivative of 1,4-diazabicyclo(2,2,2)octane as curing accelerator, andwherein one portion of the curing accelerator (c) is replaced by(d) a complex of a boron halide with an amine,have good reactivity at elevated temperatures and comparatively high stability at temperatures below c. 80.degree. C.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: July 29, 1997
    Assignee: Ciba-Geigy Corporation
    Inventors: Roland Moser, Daniel Bar
  • Adducts of exposides and amines
    Patent number: 5274054
    Abstract: Adducts which are obtainable by reacting cycloaliphatic or heterocycloaliphatic polyamines containing at least two primary groups with polyfunctional epoxides containing more than two epoxy groups per molecule in such amounts as to supply 10-100 equivalents of active hydrogen atoms bound to amino nitrogen per one epoxide equivalent, are suitable hardeners for epoxy adhesives, especially adhesives for metals and thermosetting plastics.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: December 28, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Roland Moser, Hans Lehmann, Daniel Bar