Title:
吸蔵遊離臭素含有量の低い高アッセイデカブロモジフェニルアルカン生成物の調製
Document Type and Number:
Japanese Patent JP2013500336
Kind Code:
A
Abstract:
A high assay decabromodiphenylalkane product in which the alkylene group contains in the range of about 1-10 carbon atoms and has an occluded free bromine content of <500 ppm is prepared. The process comprises brominating, in a liquid phase reaction mixture, at least one α,ω-diphenylalkane having an alkylene group of 1-10 carbon atoms, with a limited excess of bromine, in the presence of an aluminum, aluminum halide or a ferric halide catalyst in which the original halogen atoms of such halides are chlorine atoms, bromine atoms, or both. The limited excess of bromine is such that the maximum excess amount of bromine used in conducting the reaction is about 20 mole % relative to the stoichiometric amount required to convert the amount of α,ω-diphenylalkane used to decabromodiphenylalkane. Crude high assay decabromodiphenylalkane product is prepared without use of heat treatment, oven ageing, or grinding or other forms of pulverization.
Inventors:
Hussein, Sadat
Matsuk, Arthur Gee
Matsuk, Arthur Gee
Application Number:
JP2012522883A
Publication Date:
January 07, 2013
Filing Date:
July 15, 2010
Export Citation:
Assignee:
Albemarle Corporation
International Classes:
C07C17/12; C07C25/18; C07B61/00
Domestic Patent References:
| JPS59216843A | 1984-12-06 | |||
| JP2010524845A | 2010-07-22 |
Foreign References:
| WO2008115261A1 | 2008-09-25 | |||
| US5003117A | 1991-03-26 |
Attorney, Agent or Firm:
Patent business corporation Odashima patent office