3,3'-Tetraglycidylsulfonyldianiline thermosetting compositions a

Details 3,3'-Tetraglycidylsulfonyldianiline thermosetting compositions a 3,3'-Tetraglycidylsulfonyldianiline thermosetting compositions a

1979-08-01

1981-05-26

Lieberman, Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4228, 428367, 525122, 525911, 525914, 528391, C08L 6300, C08K 706

Patent

active

042697590

ABSTRACT:
The present invention is directed to (1) an epoxy compound identified as 3,3'-tetraglycidylsulfonyldianiline (referred to herein as 3,3'-TGDDS); (2) a thermosetting composition comprising 3,3'-TGDDS and a curing agent; (3) a thermosetting composition having improved resistance to moisture and to a reduction in the glass transition temperature at elevated temperatures when cured comprising (a) the above epoxy compound, i.e., 3,3'-TGDDS, (b) a polybutadiene rubber or mixture thereof, (c) an epoxy curing agent such as 4,4'-diaminodiphenylsulfone, (d) a free radical initiator and esterification catalyst for the polybutadiene rubber; and (4) a carbon fiber/rubber modified epoxy composite prepared from the thermosetting composition of (3).
The 3,3'-TGDDS when melted and admixed with the polybutadiene rubber in a solventless system forms a homogeneous mixture which is stable for extended periods.

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