Patents by Inventor Nurit Kornberg
Nurit Kornberg 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).
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Patent number: 7601774Abstract: The present invention discloses a process for the preparation of highly pure pentabromobenzyl bromide, PBB-Br, wherein the benzylic bromination reaction is carried out in a suitable organic solvent in the presence of water and wherein the reaction temperature is such that it is sufficient to activate the initiator but not high enough to consume a substantial amount thereof.Type: GrantFiled: July 19, 2005Date of Patent: October 13, 2009Assignee: Bromine Compounds Ltd.Inventors: Nurit Kornberg, Michael Adda, Michael Peled
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Patent number: 7585912Abstract: The present invention relates to a styrenic polymer composition comprising a flame-retardant effective amount of a compound of formula (I): (C6H(5-n)Yn)CH2X, wherein X is Cl or Br; Y is Cl or Br; and n is an integer between 1 and 5; or a mixture of two or more of said compounds of formula (I) or their homologues and derivatives or other Br-FRs.Type: GrantFiled: July 19, 2005Date of Patent: September 8, 2009Assignee: Bromine Compounds Ltd.Inventors: Nurit Kornberg, Jakob Oren, Smadar Hini, Michael Peled
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Patent number: 7384579Abstract: Pentabromobenzyl acrylate (PBBMA), a useful flame retardant insoluble in water, is provided as an aqueous fluid for industrial applications. The fluid is an easy to handle, stable suspension of finely ground PBBMA in water.Type: GrantFiled: March 8, 2005Date of Patent: June 10, 2008Assignee: Bromine Compounds Ltd.Inventors: Gad Friedman, Emanuel Buchbinder, Nurit Kornberg
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Patent number: 7338533Abstract: A process for the fire retardation of textile materials comprising applying to the textile materials aqueous suspensions of finely ground pentabromobenzyl acrylate particles, suspending agents chosen from xanthan gums, anionic purified suspending agents, nonionic purified suspending agents, sodium montmorillonite, naphthalene sulfonic acid-formaldehyde condensate sodium salt, sodium, calcium or ammonium salts of sulphonated lignin, acrylic acids/acrylic acids ester copolymer neutralized-sodium polycarboxyl, and wetting agents chosen from alkyl ethers, arylalkyl ethers, fatty acid diester and sorbitan monoesters, and polyoxyethylene compounds.Type: GrantFiled: August 11, 2004Date of Patent: March 4, 2008Assignee: Bromine Compounds Ltd.Inventors: Gad Friedman, Emanuel Buchbinder, Nurit Kornberg
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Patent number: 7317060Abstract: Suspensions of PBBMA, characterized in that they comprise PBBMA in the form of finely ground particles and contain suspending agents chosen from among xanthene gums, anionic or nonionic purified, sodium modified montmorilonite, naphthalene sulfonic acid-formaldehyde condensate sodium salt, sodium or calcium or ammonium salts of sulfonated lignin, acrylic acids/acrylic acids ester copolymer neutralized-sodium polycarboxyl, and wetting agents chosen from among alkyl ether, alkylaryl ether, fatty acid diester and sorbitan monoester types, polyoxyethylene (POE) compounds.Type: GrantFiled: August 11, 2004Date of Patent: January 8, 2008Assignee: Bromine Compounds Ltd.Inventors: Gad Friedman, Emanuel Buchbinder, Nurit Kornberg
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Publication number: 20070257241Abstract: The present invention relates to a styrenic polymer composition comprising a flame-retardant effective amount of a compound of formula (I): (C6H(5-n)Yn)CH2X, wherein X is Cl or Br; Y is Cl or Br; and n is an integer between 1 and 5; or a mixture of two or more of said compounds of formula (I) or their homologues and derivatives or other Br-FRs.Type: ApplicationFiled: July 19, 2005Publication date: November 8, 2007Inventors: Nurit Kornberg, Jakob Oren, Smadar Hini, Michael Peled
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Publication number: 20070205403Abstract: The present invention discloses a process for the preparation of highly pure pentabromobenzyl bromide, PBB-Br, wherein the benzylic bromination reaction is carried out in a suitable organic solvent in the presence of water and wherein the reaction temperature is such that it is sufficient to activate the initiator but not high enough to consume a substantial amount thereof.Type: ApplicationFiled: July 19, 2005Publication date: September 6, 2007Applicant: BROMINE COMPOUNDS LTD.Inventors: Nurit Kornberg, Michael Adda, Michael Peled
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Publication number: 20050148788Abstract: Suspensions of PBBMA, characterized in that they comprise PBBMA in the form of finely ground particles and contain suspending agents chosen from among xanthene gums, anionic or nonionic purified, sodium modified montmorilonite, naphthalene sulfonic acid-formaldehyde condensate sodium salt, sodium or calcium or ammonium salts of sulfonated lignin, acrylic acids/acrylic acids ester copolymer neutralized—sodium polycarboxyl, and wetting agents chosen from among alkyl ether, alkylaryl ether, fatty acid diester and sorbitan monoester types, polyoxyethylene (POE) compounds.Type: ApplicationFiled: March 8, 2005Publication date: July 7, 2005Applicant: Bromine Compounds Ltd.Inventors: Gad Friedman, Emanuel Buchbinder, Nurit Kornberg
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Patent number: 6872332Abstract: Suspensions of PBBMA, characterized in that they comprise PBBMA in the form of finely ground particles and contain suspending agents chosen from among xanthane gums, anionic or nonionic purified, sodium modified montmorilonite, naphthalene sulfonic acid-formaldehyde condensate sodium salt, sodium or calcium or ammonium salts of sulfonated lignin, acrylic acids/acrylic acids ester copolymer neutralized—sodium polycarboxyl, and wetting agents chosen from among alkyl ether, alkylaryl ether, fatty acid diester and sorbitan monoester types, polyoxyethylene (POE) compounds.Type: GrantFiled: June 11, 2001Date of Patent: March 29, 2005Assignee: Bromine Compounds Ltd.Inventors: Gad Friedman, Emanuel Buchbinder, Nurit Kornberg
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Publication number: 20050012082Abstract: Suspensions of PBBMA, characterized in that they comprise PBBMA in the form of finely ground particles and contain suspending agents chosen from among xanthene gums, anionic or nonionic purified, sodium modified montmorilonite, naphthalene sulfonic acid-formaldehyde condensate sodium salt, sodium or calcium or ammonium salts of sulfonated lignin, acrylic acids/acrylic acids ester copolymer neutralized-sodium polycarboxyl, and wetting agents chosen from among alkyl ether, alkylaryl ether, fatty acid diester and sorbitan monoester types, polyoxyethylene (POE) compounds.Type: ApplicationFiled: August 11, 2004Publication date: January 20, 2005Applicant: Bromine Compounds Ltd.Inventors: Gad Friedman, Emanuel Buchbinder, Nurit Kornberg
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Publication number: 20050009933Abstract: Suspensions of PBBMA, characterized in that they comprise PBBMA in the form of finely ground particles and contain suspending agents chosen from among xanthene gums, anionic or nonionic purified, sodium modified montmorilonite, naphthalene sulfonic acid-formaldehyde condensate sodium salt, sodium or calcium or ammonium salts of sulfonated lignin, acrylic acids/acrylic acids ester copolymer neutralized-sodium polycarboxyl, and wetting agents chosen from among alkyl ether, alkylaryl ether, fatty acid diester and sorbitan monoester types, polyoxyethylene (POE) compounds.Type: ApplicationFiled: August 11, 2004Publication date: January 13, 2005Applicant: Bromine Compounds Ltd.Inventors: Gad Friedman, Emanuel Buchbinder, Nurit Kornberg
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Publication number: 20020024042Abstract: Suspensions of PBBMA, characterized in that they comprise PBBMA in the form of finely ground particles and contain suspending agents chosen from among xanthene gums, anionic or nonionic purified, sodium modified montmorilonite, naphthalene sulfonic acid-formaldehyde condensate sodium salt, sodium or calcium or ammonium salts of sulfonated lignin, acrylic acids/acrylic acids ester copolymer neutralized—sodium polycarboxyl, and wetting agents chosen from among alkyl ether, alkylaryl ether, fatty acid diester and sorbitan monoester types, polyoxyethylene (POE) compounds.Type: ApplicationFiled: June 11, 2001Publication date: February 28, 2002Inventors: Gad Friedman, Emanuel Buchbinder, Nurit Kornberg
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Patent number: 6028156Abstract: A process for the preparation of thermally stable polymers of the formula I: ##STR1## wherein n+m=1 through 5, and x denotes the degree of polymerization, comprises polymerizing monomers of the formula Ia: ##STR2## wherein n+m=1 through 5, in a non-protic solvent.Type: GrantFiled: January 16, 1996Date of Patent: February 22, 2000Assignee: Bromine Compounds, Ltd.Inventors: Michael Peled, Nurit Kornberg
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Patent number: 5243109Abstract: Tribromostyrene (TBS) is produced by the preparation of a TBS precursor, which is .beta.-bromoethyl-tribromobenzene (.beta.-BrBr.sub.3), and the successive elimination of hydrogen bromide from said precursor. The precursor is prepared by selective bromination of phenethyl bromide (.beta.-Br), wherein the molar ratio of bromine to phenethyl bromide is comprised between 2.5 and 3.5, and preferably between 3.1 and 3.3 included; and by adding bromine, after an initial addition, at a controlled molar rate.Type: GrantFiled: August 6, 1992Date of Patent: September 7, 1993Assignee: Bromine Compounds Ltd.Inventors: Nurit Kornberg, David Beneish, Michael Peled
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Patent number: 5045618Abstract: A novel flame-retardant material is prepared by copolymerizing pentabromobenzyl-acrylate with a metal salt of a compound of Formula I: ##STR1## wherein R.sub.1 is H or lower alkyl, and R.sub.2 is selected from H, lower alkyl and ##STR2## The novel flame retardant has improved thermal stability and is useful in a variety of uses, e.g. as a flame retardant in engineering plastics and styrenic.Type: GrantFiled: September 27, 1990Date of Patent: September 3, 1991Assignee: Bromine Compounds Ltd.Inventors: Nurit Kornberg, Michael R. Peled, Jacob Scheinert
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Patent number: 4898993Abstract: A process is described which permits to prepare substantially pure 2-tert-butyl-4-methoxyphenol, by reacting 4-bromo-2-tert-butylphenol with a methoxide in an organic solvent.The process permits to obtain a substantially pure 2-isomer, and avoids the need for the separation of the 2- and 3-isomers.Type: GrantFiled: January 13, 1988Date of Patent: February 6, 1990Assignee: Bromine Compounds LimitedInventors: Abram Becker, Nurit Kornberg, Berta Croitoru