Patents by Inventor Ron Frim

Ron Frim 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).

  • Patent number: 10472462
    Abstract: The invention relates to a process for preparing bromine-containing polymer, comprising a Friedel-Crafts alkylation reaction of tetrabromoxylylene dihalide, or tetrabromoxylylene dihalide in combination with pentabromobenzyl halide, with a reactant having one or more six-membered aromatic rings, wherein the reaction takes place in a solvent in the presence of a Friedel-Crafts catalyst, and isolating from the reaction mixture the bromine-containing polymer. The so-formed polymers and their use as flame retardants form additional aspects of the invention.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: November 12, 2019
    Assignee: Bromine Compounds Ltd.
    Inventors: Mark Gelmont, Michael Yuzefovich, Andrew Piotrowski, David Yoffe, Ron Frim, Yaniv Hirschsohn
  • Patent number: 10336858
    Abstract: The invention relates to a process for preparing bromine-containing polymer, comprising a Friedel-Crafts alkylation reaction of tetrabromoxylylene dihalide, or tetrabromoxylylene dihalide in combination with pentabromobenzyl halide, with a reactant having one or more six-membered aromatic rings, wherein the reaction takes place in a solvent in the presence of a Friedel-Crafts catalyst, and isolating from the reaction mixture the bromine-containing polymer. The so-formed polymers and their use as flame retardants form additional aspects of the invention.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: July 2, 2019
    Assignee: Bromine Compounds Ltd.
    Inventors: Mark Gelmont, Michael Yuzefovich, Andrew Piotrowski, David Yoffe, Ron Frim, Yaniv Hirschsohn
  • Publication number: 20190169359
    Abstract: The invention relates to a process for preparing bromine-containing polymer, comprising a Friedel-Crafts alkylation reaction of tetrabromoxylylene dihalide, or tetrabromoxylylene dihalide in combination with pentabromobenzyl halide, with a reactant having one or more six-membered aromatic rings, wherein the reaction takes place in a solvent in the presence of a Friedel-Crafts catalyst, and isolating from the reaction mixture the bromine-containing polymer. The so-formed polymers and their use as flame retardants form additional aspects of the invention.
    Type: Application
    Filed: February 4, 2019
    Publication date: June 6, 2019
    Inventors: Mark Gelmont, Michael Yuzefovich, Andrew Piotrowski, David Yoffe, Ron Frim, Yaniv Hirschsohn
  • Publication number: 20190144754
    Abstract: The invention provides a process for preparing bromine-containing polymers, comprising a Friedel-Crafts alkylation reaction of pentabromobenzyl halide with a polymer reactant which contains one or more six-membered aromatic ring(s) in its repeat unit, in the presence of at least one Friedel-Crafts catalyst. The so-formed bromine-containing polymers, having pendent —CH2C6Br5 groups attached to at least a portion of the six-membered aromatic rings of the polymer, with a carbon ring atom of said six-membered aromatic ring being bonded to the aliphatic carbon of said —CH2C6Br5 pendent group, are also provided. These bromine-containing polymers are useful as flame retarding agents.
    Type: Application
    Filed: January 14, 2019
    Publication date: May 16, 2019
    Inventors: Mark Gelmont, Michael Yuzefovich, David Yoffe, Renata Yelizarov, Ron Frim, Lior Melamed
  • Patent number: 10227531
    Abstract: The invention provides a process for preparing bromine-containing polymers, comprising a Friedel-Crafts alkylation reaction of pentabromobenzyl halide with a polymer reactant which contains one or more six-membered aromatic ring(s) in its repeat unit, in the presence of at least one Friedel-Crafts catalyst. The so-formed bromine-containing polymers, having pendent —CH2C6Br5 groups attached to at least a portion of the six-membered aromatic rings of the polymer, with a carbon ring atom of said six-membered aromatic ring being bonded to the aliphatic carbon of said —CH2C6Br5 pendent group, are also provided. These bromine-containing polymers are useful as flame retarding agents.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: March 12, 2019
    Assignee: Bromine Compounds Ltd.
    Inventors: Mark Gelmont, Michael Yuzefovich, David Yoffe, Renata Yelizarov, Ron Frim, Lior Melamed
  • Patent number: 9988332
    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: Grant
    Filed: October 4, 2016
    Date of Patent: June 5, 2018
    Assignee: BROMINE COMPOUNDS LTD.
    Inventors: Mark Gelmont, Michael Yuzefovitch, David Yoffe, Ron Frim
  • Publication number: 20170145313
    Abstract: The invention provides a process for preparing bromine-containing polymers, comprising a Friedel-Crafts alkylation reaction of pentabromobenzyl halide with a polymer reactant which contains one or more six-membered aromatic ring(s) in its repeat unit, in the presence of at least one Friedel-Crafts catalyst. The so-formed bromine-containing polymers, having pendent —CH2C6Br5 groups attached to at least a portion of the six-membered aromatic rings of the polymer, with a carbon ring atom of said six-membered aromatic ring being bonded to the aliphatic carbon of said —CH2C6Br5 pendent group, are also provided. These bromine-containing polymers are useful as flame retarding agents.
    Type: Application
    Filed: July 7, 2015
    Publication date: May 25, 2017
    Inventors: Mark Gelmont, Michael Yuzefovich, David Yoffe, Renata Yelizarov, Ron Frim, Lior Melamed
  • Publication number: 20170145151
    Abstract: The invention relates to a process for preparing bromine-containing polymer, comprising a Friedel-Crafts alkylation reaction of tetrabromoxylylene dihalide, or tetrabromoxylylene dihalide in combination with pentabromobenzyl halide, with a reactant having one or more six-membered aromatic rings, wherein the reaction takes place in a solvent in the presence of a Friedel-Crafts catalyst, and isolating from the reaction mixture the bromine-containing polymer. The so-formed polymers and their use as flame retardants form additional aspects of the invention.
    Type: Application
    Filed: July 7, 2015
    Publication date: May 25, 2017
    Applicant: Bromine Compounds Ltd.
    Inventors: Mark Gelmont, Michael Yuzefovich, Andrew Piotrowski, David Yoffe, Ron Frim, Yaniv Hirschsohn
  • Patent number: 9631144
    Abstract: A liquid flame retardant composition which comprises 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: September 9, 2014
    Date of Patent: April 25, 2017
    Assignee: Bromine Compounds Ltd.
    Inventors: Mark Gelmont, Michael Peled, Dina Alon, Ron Frim, Yoav Bar-Yaakov
  • Publication number: 20170022133
    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: October 4, 2016
    Publication date: January 26, 2017
    Inventors: Mark GELMONT, Michael YUZEFOVITCH, David YOFFE, Ron FRIM
  • Patent number: 9481621
    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: Grant
    Filed: January 6, 2014
    Date of Patent: November 1, 2016
    Assignee: BROMINE COMPOUNDS LTD.
    Inventors: Mark Gelmont, Michael Yuzefovitch, David Yoffe, Ron Frim
  • 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
  • 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
  • Publication number: 20140378565
    Abstract: A liquid flame retardant composition which comprises 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: Application
    Filed: September 9, 2014
    Publication date: December 25, 2014
    Inventors: Mark Gelmont, Michael Peled, Dina Alon, Ron Frim, Yoav Bar-Yaakov
  • Publication number: 20140322362
    Abstract: This invention provides a one-stage process for generating a biocidal solution in situ, including a reaction between an ammonium salt and an electrolytically generated bromine oxidative species.
    Type: Application
    Filed: December 19, 2012
    Publication date: October 30, 2014
    Inventors: Ron Frim, Shlomo Antebi
  • Patent number: 8871170
    Abstract: A process for producing KNO3 from polyhalite to is disclosed. In a preferred embodiment, the process comprises steps of (a) contacting polyhalite with HNO3; (b) adding Ca(OH)2 to the solution, thereby precipitating as CaSO4 at least part of the sulfate present in said solution; (c) precipitating as Mg(OH)2 at least part of the Mg2+ remaining in said solution by further addition of Ca(OH)2 to the remaining solution; (d) concentrating the solution, thereby precipitating as a sulfate compound at least part of the sulfate remaining in solution; (e) separating at least part of the NaCl from the solution remaining; and (f) crystallizing as solid KNO3 at least part of the K+ and NO3-contained in the solution. The process enables direct conversion of polyhalite to KNO3 of purity exceeding 98.5% and that is essentially free of magnesium and sulfate impurities.
    Type: Grant
    Filed: June 27, 2010
    Date of Patent: October 28, 2014
    Assignee: IMI TAMI Insitute for Research and Development
    Inventors: Michael Bonan, Eyal Ginzberg, Akiva Mozes, Eyal Barnea, Hugo Keselman, Gideon Friedman, Ron Frim, Cornelis Petrus Langeveld
  • 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
  • Publication number: 20140305343
    Abstract: A mixture suitable for use in forming a magnesium silico-phosphate cement is disclosed. The mixture comprises particles of MgO at least partially coated with an additive adapted to alter the setting time of said cement cast; a phosphate salt or acid chosen that will provide a binder product characterized by the empirical chemical formula MMgPO4.6H2O; and an aggregate phase chosen from the group containing (a) CaSiO3, (b) MgSiO3, (c) SiO2, (d) fly ash, (e) sea sand, and (f) any combination thereof. Coating the MgO particles provides better control of the alteration of the setting time and better physical properties of the set cement. Methods for making the mixture and for preparing a cement cast based on the mixture are also disclosed.
    Type: Application
    Filed: November 30, 2011
    Publication date: October 16, 2014
    Applicant: IMI TAMI Institute for Research and Development Ltd.
    Inventors: Eyal Yehiel Vultz, Aharon Weissman, Bassam Massri, Eyal Ginzberg, Ron Frim
  • 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
  • Patent number: 8652248
    Abstract: A cement mix for preparation of a magnesium silico-phosphate cement (MSPC) with an altered hardening rate is provided. The cement mix comprises on the order of 1% of an [MF6]n? salt or acid. Upon addition of water, the mix produces a final set cement that has similar physical properties to those of a cement prepared from a mix lacking the additive, but with a significantly altered setting time. In some embodiments of the invention, the additive is provided in the form of a coating for the MgO component of the mix. In preferred embodiments, H2TiF6, Na2TiF6 and/or K2TiF6 are used as retarders, while K3AlF6 is used as an accelerant. Other embodiments use M?nMF6 compounds wherein M? is an alkali metal, an alkaline earth metal, or H, and M is chosen from inter alia Ti (n=2), Zr (n=2), P (n=1), Al (n=3), and Sb (n=1).
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: February 18, 2014
    Assignee: Imi Tami Institute For Research and Development Ltd
    Inventors: Aharon Weissman, Yelena Gorelik, Eyal Yehihel Vultz, Dorit Perle, Basam Masri, Gideon Shikolsky, Ezrah Hanuka, Ron Frim, Eyal Ginzberg