Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1984-08-09
1986-09-02
Kight, John
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
548473, 548480, 548461, 562473, C07D20948, C07D30789
Patent
active
046097414
ABSTRACT:
Novel phthalic acid derivatives are described which are substituted by 2-propynyloxy groups, of the formula I ##STR1## in which Q.sub.1, and Q.sub.2 independently of one another are --OH or --O.sup.- M.sup.+, or Q.sub.1 and Q.sub.2 together form the grouping --O--, [O.sup.- ].sub.2 M.sub.1.sup.++ or --N(R.sub.2)--, M.sup.+ is an alkali metal ion, a trialkyl ammonium ion having 3-24 carbon atoms or a quaternary ammonium ion and M.sub.1.sup.++ is an alkaline earth metal ion, R.sub.2 is an alkyl group or an unsubstituted or substituted aryl group, n is 1 or 2 and R.sub.1 is hydrogen, if n is 1, or a direct bond, if n is 2, are described. The phthalic anhydrides which are substituted by 2-propynyloxy, of the formula I, can be used for curing epoxy resins, cured products with outstanding physical properties being obtained.
REFERENCES:
patent: 4140703 (1979-02-01), Darms et al.
patent: 4158662 (1979-06-01), Darms et al.
patent: 4363917 (1982-12-01), Fischer et al.
patent: 4459414 (1984-07-01), Fischer et al.
Darms Roland
Kvita Vratislav
Monnier Charles E.
Ciba-Geigy Corporation
Falber Harry
Kight John
Nutter Nathan M.
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