Standard Oil Company (indiana)

David J Fenoglio

Kerford A Marchant, Jr

Fire retardant adducts of 1,4-dihydronaphthalene and halocyclopentadienes and polymer compositions containing said adducts.

Fire retardants

A new azo-bisanhydride made by condensing 2 moles of 4-chloroformylphthalic anhydride (4-mono acid chloride of trimellitic anhydride), 1 mole of hydrazine, and 1 mole of a ketone (acetone) having the formula: ##STR1## Such compounds are useful as dyes and as monomers capable of copolymerizing thus introducing the azo chromophore group into the backbone of a polymer.

Azo-bisanhydride of trimellitic anhydride

2,3-Thioepoxytetralin, poly(2,3-thioepoxytetralin) and bis-(1,4-dihydronaphtho)[2,3-c; 2,3-f]1,2,5-trithiepane.

Bis-(1,4-dihydronaphtho)[2,3-c; 2,3-f]1,2,5-trithiepane

A new azo-bisanhydride made by condensing 2 moles of 4-chloroformylphthalic anhydride (4-mono acid chloride of trimellitic anhydride), 1 mole of hydrazine, and 1 mole of a ketone (acetone) having the formula: ##SPC1## Such compounds are useful as dyes and as monomers capable of copolymerizing thus introducing the azo chromophore group into the backbone of a polymer.

Growing community of inventors

Carol Stream, IL, United States of America

David J Fenoglio