Aromatic trisanhydrides

Details Aromatic trisanhydrides Aromatic trisanhydrides

1991-03-11

1993-08-31

Ivy, C. Warren

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

552101, 552115, C07D30777

Patent

active

052410820

ABSTRACT:
Aromatic trisanhydrides of the formula (I) ##STR1## wherein R is hydrogen, C.sub.1 -C.sub.4 alkyl or aryl are useful for the synthesis of star-branched and star-burst polyester-imides and polyesterimide-amides and as curing agents for epoxy resins, phenolics and polyesters.

REFERENCES:
patent: 3182073 (1965-05-01), Loncrini
patent: 3182074 (1965-05-01), Loncrini
patent: 5109107 (1992-04-01), Vora et al.

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