Benzoxazine compounds derivated from phenolphthalein having flame-retardant properties and a process for their preparation

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United States of America Patent

PATENT NO 9012543
APP PUB NO 20110152453A1
SERIAL NO

11663879

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The instant invention relates to 3,3′-bis(3,4-dihydro-3-phenyl-2H-1,3-benzoxazin-6-yl)-1(3H)-isobenzofuranone and analogues based on phenolphthalein, formaldehyde and a primary amine. Such compounds are, when cured to form polymeric networks, difficultly inflammable and resistant to high temperatures. Such compounds may especially be used in the production of printed wiring boards.

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HUNTSMAN ADVANCED MATERIALS (SWITZERLAND) GMBHKLYBECKSTRASSE 200 BASEL 4057

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blyakhman, Yefim Brooklyn, US 11 23
Bryant, Mark The Woodlands, US 38 1734
Lin, Bor-Sheng Berkeley Heights, US 10 60
Orser, Dave Lodi, US 2 3
Tietze, Roger The Woodlands, US 11 26

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