Patents Assigned to Bromine Compounds Ltd.
  • High impact polystyrene flame retarded compositions
    Patent number: 9315731
    Abstract: The invention relates to a polymer composition comprising high impact polystyrene (HIPS) and a combination of flame retardants which are brominated epoxy oligomers and polymers. A process for preparing the HIPS composition through a masterbatch route and a masterbatch composition which contains the flame retardants are also disclosed.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: April 19, 2016
    Assignee: BROMINE COMPOUNDS LTD.
    Inventors: Yoav Bar-Yaakov, Yaniv Hirschsohn, Ita Finberg
  • Flame retardants, processes for their preparation and uses thereof in polyurethane and polyisocyanurate foams
    Patent number: 9309377
    Abstract: The invention provides pentabromobenzyl moiety containing hydroxy-functional compounds which are useful as flame-retardants in flexible and rigid polyurethane foams and also in rigid polyisocyanurate foams. Processes for preparing the compounds, polyurethane and polyisocyanurate foams containing the compounds are also provided by the invention.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: April 12, 2016
    Assignee: BROMINE COMPOUNDS LTD.
    Inventors: Mark Gelmont, Michael Yuzefovich, Dorit Peled, Orly Cohen, Ron Frim
  • Poly (pentabromobenzyl acrylate) and its properties
    Patent number: 9255165
    Abstract: Poly (pentabromobenzyl acrylate) having a weight average molecular weight (Mw) in the range from 200,000 to 600,000 and a polydispersity index less than 15 based on high temperature gel permeation chromatography.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: February 9, 2016
    Assignee: BROMINE COMPOUNDS LTD.
    Inventor: Jacob Oren
  • RECOVERY OF BROMIDE FROM SULFATE COMPRISING AQUEOUS STREAMS
    Publication number: 20150329370
    Abstract: A solvent extraction process for recovering bromide from a sulfate-containing aqueous stream, the process comprises an extraction step wherein said aqueous stream is mixed with an extraction medium comprising a tertiary amine extractant dissolved in one or more water-immiscible organic solvents, wherein said mixing is carried out in a strongly acidic environment, thereby forming bromide-containing extract and a raffinate with a reduced bromide level, wherein the bromide-containing extract is optionally treated to further minimize the presence of sulfate and is subsequently combined with an aqueous calcium source to form calcium bromide.
    Type: Application
    Filed: January 27, 2014
    Publication date: November 19, 2015
    Applicant: BROMINE COMPOUNDS LTD.
    Inventors: Sarit SARMILI, Gldeon Friedman, Eyal Barnea, David Fuks, Mira Bergstein Freiberg
  • PREPARATION OF BROMINE-CONTAINING AROMATIC COMPOUNDS AND THEIR APPLICATION AS FLAME RETARDANTS
    Publication number: 20150329447
    Abstract: The invention relates to compounds of the formula Ar(—CH2C6Br5)y, wherein Ar indicates a structure comprising one or more six-membered aromatic ring(s) and —CH2C6Br5 indicates a pentabromobenzyl group, characterized in that at least one carbon atom of said six-membered aromatic ring(s) is bonded to the benzylic carbon of said —CH2C6Br5 group, wherein y, which indicates the number of the —CH2C6Br5 groups in said compound, is not less than 1. Processes for preparing the compounds and their use as flame retardants are also disclosed.
    Type: Application
    Filed: January 6, 2014
    Publication date: November 19, 2015
    Applicant: BROMINE COMPOUNDS LTD.
    Inventors: Mark GELMONT, Michael YUZEFOVITCH, David YOFFE, Ron FRIM
  • Manufacturing of stabilized propargyl bromide
    Patent number: 9169178
    Abstract: This invention provides a process for obtaining propargyl bromide in high yield from propargyl alcohol and phosphorus bromide, in the form of a stable composition with alkylbromide.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: October 27, 2015
    Assignee: Bromine Compounds Ltd.
    Inventor: Jakob Oren
  • Stabilized and activated bromine solutions as a biocide and as an antifouling agent
    Patent number: 9149041
    Abstract: The invention provides a process of removing or preventing biofouling, particularly on surfaces of industrial and agricultural equipment in contact with aqueous liquids. The process employs an antifouling composition of stabilized active halogen having a low pH.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: October 6, 2015
    Assignee: Bromine Compounds Ltd.
    Inventors: Shlomo Antebi, Chen Zolkov, David Feldman
  • FLAME RETARDANT COMPOSITION FOR FLAMMABLE PLASTIC MATERIALS COMPRISING 2,4,6-TRIS(2,4,6-TRIBROMOPHENOXY)-1,3,5- TRIAZINE AND PROCESS FOR PRODUCING THE SAME
    Publication number: 20150267120
    Abstract: A flame retardant composition for flammable plastic materials and a method for producing the same are disclosed. The flame retardant composition comprises 2,4,6-tris(2,4,6-tribromophenoxy)-1,3,5-triazine that contains 1 to 1000 ppm of a metal species of a water-insoluble polyvalent metal compound selected from the group consisting of oxide, hydroxide, carbonate, phosphate, sulfate and silicate present in the particles of 2,4,6-tris(2,4,6-tribromophenoxy)-1,3,5-triazine. The flame retardant composition is produced by reacting an alkali metal salt of 2,4,6-tribromophenol and cyanuric chloride in the presence of said water-insoluble polyvalent metal compound.
    Type: Application
    Filed: June 8, 2015
    Publication date: September 24, 2015
    Applicants: BROMINE COMPOUNDS, LTD., DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Hideaki ONISHI, Michael PELED
  • Method for preparing bromourea
    Patent number: 9133109
    Abstract: The invention provides a process for manufacturing biocidal compositions containing bromourea derivatives, including the reaction of salts or adducts of the urea derivatives with an oxidizer.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: September 15, 2015
    Assignee: Bromine Compounds Ltd.
    Inventors: Shomo Antebi, David Feldman
  • ADDITIVES FOR ZINC-BROMINE MEMBRANELESS FLOW CELLS
    Publication number: 20150155584
    Abstract: The invention relates to the use of nitrogen-containing compounds belonging to the classes of N-alkyl pyridinium halide, N-alkyl-2-alkyl pyridinium halide and 1-alkyl-3-alkyl imidazolium halide, as additives in electrolyte solutions for zinc bromine membraneless flow cells. The invention also provides electrolyte solutions comprising such additives and processes for operating said cells.
    Type: Application
    Filed: May 9, 2013
    Publication date: June 4, 2015
    Applicant: BROMINE COMPOUNDS LTD.
    Inventors: Ben-Zion Magnes, Iris Ben David, Eli Lancry, Mira Bergstein-Freiberg
  • Process for the preparation of the monomer pentabromobenzyl acrylate and polymerization thereof
    Patent number: 9018324
    Abstract: The invention relates to a process for preparing pentabromobenzyl acrylate through the reaction of pentahalobenzyl halide with a salt of acrylic acid in water-immiscible solvent, wherein said salt is in aqueous form and the reaction is carried out in the presence of a phase transfer catalyst. A process for polymerizing the pentabromobenzyl acrylate in halogenated aromatic solvent and the poly (pentabromobenzyl acrylate) obtained are also disclosed.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: April 28, 2015
    Assignee: Bromine Compounds Ltd.
    Inventor: Jacob Oren
  • Flame retarded compositions
    Patent number: 8991321
    Abstract: The invention relates to a polyethylene composition comprising a mixture of flame retardants which are bromine-containing polymers. The polyethylene composition is useful in the manufacture of pallets. A process for making the polyethylene composition through a masterbatch route is also disclosed.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: March 31, 2015
    Assignee: Bromine Compounds Ltd.
    Inventors: Yoav Bar-Yaakov, Yaniv Hirschsohn, Ita Finberg, Pierre Alexandre Georlette
  • Method of operating metal-bromine cells
    Patent number: 8911612
    Abstract: A method for generating molecular bromine in bromide-containing electrolyte solution suitable for use in a metal bromine cell, involves chemically oxidizing bromide (Br?) in the electrolyte solution in an acidic environment, to produce the molecular bromine.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: December 16, 2014
    Assignee: Bromine Compounds Ltd.
    Inventors: Mira Bergstein Freiberg, Iris Ben David, Ben-Zion Magnes
  • Flame retardant composition
    Patent number: 8865783
    Abstract: A liquid flame retardant composition having one or more flame retarding agents, which are the epoxides obtainable by reacting tetrabromobisphenol A with epichlorohydrin and their end-capped derivatives represented by Formula (1), is provided. The liquid composition is especially useful in the preparation of rigid polyurethane foams.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: October 21, 2014
    Assignee: Bromine Compounds Ltd.
    Inventors: Mark Gelmont, Michael Peled, Dina Alon, Ron Frim, Yoav Bar-Yaakov
  • FLAME RETARDANTS, PROCESSES FOR THEIR PREPARATION AND USES THEREOF IN POLYURETHANE AND POLYISOCYANURATE FOAMS
    Publication number: 20140303271
    Abstract: The invention provides pentabromobenzyl moiety containing hydroxy-functional compounds which are useful as flame-retardants in flexible and rigid polyurethane foams and also in rigid polyisocyanurate foams. Processes for preparing the compounds, polyurethane and polyisocyanurate foams containing the compounds are also provided by the invention.
    Type: Application
    Filed: April 8, 2014
    Publication date: October 9, 2014
    Applicant: BROMINE COMPOUNDS LTD.
    Inventors: Mark GELMONT, Michael YUZEFOVICH, Dorit PELED, Orly COHEN, Ron FRIM
  • PROCESSES FOR PREPARING N-ETHYL-2-METHYLPYRIDINIUM BROMIDE AND N-ETHYL-3-METHYLPYRIDINIUM BROMIDE
    Publication number: 20140262818
    Abstract: A process for preparing an aqueous solution of N-ethyl-2-methylpyridinium bromide (2-MEPy), comprising reacting 2-picoline and ethyl bromide in a pressure reactor at a temperature above the melting point of the reaction mixture, combining the reaction product with water, wherein said reaction product consists essentially of 2-MEPy in a liquid form, and recovering an aqueous solution of 2-MEPy.
    Type: Application
    Filed: March 20, 2014
    Publication date: September 18, 2014
    Applicant: BROMINE COMPOUNDS LTD.
    Inventors: Iris BEN-DAVID, Gershon MIASKOVSKI, Igor KOMPANIETS
  • Process for the preparation of bronopol
    Patent number: 8729314
    Abstract: The invention provides a process for preparing bronopol, which process comprises charging a reaction vessel with water, bromopicrin, nitromethane and paraformaldehyde, gradually feeding a base into said reaction vessel under stirring, bringing the reaction to completion and separating bronopol from the aqueous reaction mixture.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: May 20, 2014
    Assignee: Bromine Compounds Ltd.
    Inventor: Jacob Oren
  • PROCESS FOR THE PREPARATION OF THE MONOMER PENTABROMOBENZYL ACRYLATE AND POLYMERIZATION THEREOF
    Publication number: 20140121338
    Abstract: The invention relates to a process for preparing pentabromobenzyl acrylate through the reaction of pentahalobenzyl halide with a salt of acrylic acid in water-immiscible solvent, wherein said salt is in aqueous form and the reaction is carried out in the presence of a phase transfer catalyst. A process for polymerizing the pentabromobenzyl acrylate in halogenated aromatic solvent and the poly (pentabromobenzyl acrylate) obtained are also disclosed.
    Type: Application
    Filed: April 5, 2012
    Publication date: May 1, 2014
    Applicant: BROMINE COMPOUNDS LTD.
    Inventor: Jacob Oren
  • FORMULATIONS CONTAINING A NON-OXIDATIVE BIOCIDE AND A SOURCE OF ACTIVE HALOGEN AND USE THEREOF IN WATER TREATMENT
    Publication number: 20140093589
    Abstract: Novel formulations containing a non-oxidative biocide, such as DBNPA, and a source of an in situ produced active biocide, such as a concentrated aqueous solution of an inorganic halide salt, are disclosed. These novel formulations are particularly effective in the treatment of water, and are characterized by high stability, desirable rheological properties and an excellent biocidal activity.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 3, 2014
    Applicant: Bromine Compounds Ltd.
    Inventors: David Feldman, Michael Adda, Raymond J. Roccon
  • Fire retardant formulations
    Patent number: 8663509
    Abstract: A fire-retardant formulation for styrene-containing polymers comprising tris(2,4,6-tribromophenoxy)-s-triazine (FR-245), antimony trioxide and polytetrafluoroethylene (PTFE), wherein the bromine concentration in said fire-retardant formulation is from about 9.0 to about 10.5 wt. %, said antimony trioxide concentration being lower than about 3.2 wt. %.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: March 4, 2014
    Assignee: Bromine Compounds Ltd.
    Inventors: Yoav Bar-Yaakov, Ita Finberg