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公开(公告)号：US10472462B2
公开(公告)日：2019-11-12
申请号：US16266212
申请日：2019-02-04
Applicant: Bromine Compounds Ltd.
Inventor： Mark Gelmont , Michael Yuzefovich , Andrew Piotrowski , David Yoffe , Ron Frim , Yaniv Hirschsohn
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.
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公开(公告)号：US20190169359A1
公开(公告)日：2019-06-06
申请号：US16266212
申请日：2019-02-04
Applicant: Bromine Compounds Ltd.
Inventor： Mark Gelmont , Michael Yuzefovich , Andrew Piotrowski , David Yoffe , Ron Frim , Yaniv Hirschsohn
CPC classification number: C08G61/02 , C08G2261/12 , C08G2261/146 , C08G2261/148 , C08G2261/3424 , C08G2261/45 , C08L25/06 , C08L51/04 , C08L55/02 , C09K21/14 , C08L65/00
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.
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公开(公告)号：US20170145151A1
公开(公告)日：2017-05-25
申请号：US15323847
申请日：2015-07-07
Applicant: Bromine Compounds Ltd.
Inventor： Mark Gelmont , Michael Yuzefovich , Andrew Piotrowski , David Yoffe , Ron Frim , Yaniv Hirschsohn
CPC classification number: C08G61/02 , C08G2261/12 , C08G2261/146 , C08G2261/148 , C08G2261/3424 , C08G2261/45 , C08L25/06 , C08L51/04 , C08L55/02 , C09K21/14 , C08L65/00
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.
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公开(公告)号：US10336858B2
公开(公告)日：2019-07-02
申请号：US15323847
申请日：2015-07-07
Applicant: Bromine Compounds Ltd.
Inventor： Mark Gelmont , Michael Yuzefovich , Andrew Piotrowski , David Yoffe , Ron Frim , Yaniv Hirschsohn
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.
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