Brominated 1,3-dimethyl-3-phenyl-1-(2-methyl-2-phenylpropyl)-ind

Details Brominated 1,3-dimethyl-3-phenyl-1-(2-methyl-2-phenylpropyl)-ind Brominated 1,3-dimethyl-3-phenyl-1-(2-methyl-2-phenylpropyl)-ind

1998-07-07

1999-08-17

Siegel, Alan

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

570206, C07C 2200

Patent

active

059395931

ABSTRACT:
A brominated 1,3-dimethyl-3-phenyl-1-(2-methyl-2-phenylpropyl) indane herein disclosed is represented by the following general formula (I): ##STR1## (wherein x and z each independently represents an integer ranging from 0 to 5, y represents an integer ranging from 0 to 4, provided that x+y+z>1). The compound can be prepared by a method which comprises the step of reacting 1,3-dimethyl-3-phenyl-1-(2-methyl-2-phenylpropyl) indane with a bromination agent. The brominated indane is excellent in flame-resistance, has a high thermal decomposition temperature and never generates brominated dioxine and/or brominated dibenzofuran when burning at a specific temperature. Therefore, the compound is suitably used for imparting flame-resistance to a variety of thermoplastic and thermosetting resins.

REFERENCES:
"Polybrominated Dibenzofurans and Dibenzo-p-dioxins: Thermal Reaction Products of Polybrominated Diphenyl Ether Flame Retardants", by Hans-Rudolf Buser (ES&T vol. 20 No. 4) Apr. 1986
Database WPI, Week 9703, Derwent Pub. Ltd., London, GB; AN 97-029559, XP002077445 & JP 08 291 241 A (Asahi Kasei Kogyo KK) Nov. 5 1996.

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