Homogeneous thermosettable composition of a polyanhydride and a polyepoxide

Claim 1

A METHOD OF PREPARING A HANDLEABLE, THERMOSETTABLE, MOLDABLE COMPOSITION WHICH COMPRISES THE STEPS FORMING A LIQUID SOLUTION CONSISTING ESSENTIALLY OF A POLYANHYDRIDE REPRESENTED BY THE GENERAL FORMULA FIG-01 WHEREIN N IS BETWEEN 2 AND ABOUT 500, R IS HYDROGEN, HALOGEN OR A STRAIGHT CHAIN ALKYL OR HALOGENATED ALKYL GROUP HAVING FROM 1 TO 18 CARBON ATOMS, R1 AND R2 ARE INDEPENDENTLY SELECTED FROM HYDROGEN, HALOGEN, ALKYL HAVING FROM ONE TO FOUR CARBON ATOMS AND PHENYL, R3 IS HYDROGEN, CHLORINE, BROMINE OR METHYL AND R4 AND R5 ARE ON AN AROMATIC NUCLEUS AND ARE INDEPENDENTLY SELECTED FROM HYDROGEN, CHLORINE, BROMINE, LOWER ALKYL HAVING FROM ONE TO FOUR CARBON ATOMS, METHOXY AND ETHOXY; AN OLEFINICALLY UNSATURATED MONOXIRANE COMPOUND CONTAINING AS ITS ONLY FUNCTIONAL GROUPS A SINGLE OXIRANE OXYGEN ATOM AND AN OLEFINIC DOUBLE BOND CAPABLE OF BEING POLYMERIZED BY FREE RADICAL MEANS; AND OPTIONALLY AN OLEFINICALLY UNSATURATED MONOMER FREE OF OXIRANE OXYGEN ATOMS AND CONTAINING AS ITS ONLY FUNCTIONAL GROUPS AT LEAST ONE OLEFINIC DOUBLE BOND CAPABLE OF POLYMERIZATION BY FREE RADICAL MEANS; AND POLYMERIZING AT LEAST A PORTION OF SAID OLEFINIC DOUBLE BONDS OF SAID OLEFINICALLY UNSATURATED MONOOXIRANE COMPOUND AND SAID OLEFINICALLY UNSATURATED MONOMER BY USING A CHEMICAL FREE RADICAL INITIATOR AT A TEMPERATURE UP TO ABOUT 70*C. WITHOUT SUBSTANTIAL POLYMERIZATION OF THE ANHYDRIDE GROUPS AND THE EPOXIDE GROUPS PRESENT IN THE MIXTURE WHEREBY A HANDLEABLE, THERMOSETTABLE, MOLDABLE COMPOSITION COMPRISING A HOMOGENOUS MIXTURE OF POLYANHYDRIDE MOLECULES, POLYEPOXIDE MOLECULES AND ANY UNREACTED OLEFINICALLY UNSATURATED MONOOXIRANE COMPOUND AND OLEFINICALLY UNSATURATED MONOMER IS OBTAINED.

Claim 2

A METHOD OF PREPARING A HANDLEABLE, THERMOSETTABLE, MOLDABLE COMPOSITION WHICH COMPRISES THE STEPS FORMING A LIQUID SOLUTION CONSISTING ESSENTIALLY OF A POLYANHYDRIDE REPRESENTED BY THE GENERAL FORMULA FIG-01 WHEREIN N IS BETWEEN 2 AND ABOUT 500, R IS HYDROGEN, HALOGEN OR A STRAIGHT CHAIN ALKYL OR HALOGENATED ALKYL GROUP HAVING FROM 1 TO 18 CARBON ATOMS, R1 AND R2 ARE INDEPENDENTLY SELECTED FROM HYDROGEN, HALOGEN, ALKYL HAVING FROM ONE TO FOUR CARBON ATOMS AND PHENYL, R3 IS HYDROGEN, CHLORINE, BROMINE OR METHYL AND R4 AND R5 ARE ON AN AROMATIC NUCLEUS AND ARE INDEPENDENTLY SELECTED FROM HYDROGEN, CHLORINE, BROMINE, LOWER ALKYL HAVING FROM ONE TO FOUR CARBON ATOMS, METHOXY AND ETHOXY; AN OLEFINICALLY UNSATURATED MONOXIRANE COMPOUND CONTAINING AS ITS ONLY FUNCTIONAL GROUPS A SINGLE OXIRANE OXYGEN ATOM AND AN OLEFINIC DOUBLE BOND CAPABLE OF BEING POLYMERIZED BY FREE RADICAL MEANS; AND OPTIONALLY AN OLEFINICALLY UNSATURATED MONOMER FREE OF OXIRANE OXYGEN ATOMS AND CONTAINING AS ITS ONLY FUNCTIONAL GROUPS AT LEAST ONE OLEFINIC DOUBLE BOND CAPABLE OF POLYMERIZATION BY FREE RADICAL MEANS; AND POLYMERIZING AT LEAST A PORTION OF SAID OLEFINIC DOUBLE BONDS OF SAID OLEFINICALLY UNSATURATED MONOOXIRANE COMPOUND AND SAID OLEFINICALLY UNSATURATED MONOMER BY USING A CHEMICAL FREE RADICAL INITIATOR AT A TEMPERATURE UP TO ABOUT 70*C. WITHOUT SUBSTANTIAL POLYMERIZATION OF THE ANHYDRIDE GROUPS AND THE EPOXIDE GROUPS PRESENT IN THE MIXTURE WHEREBY A HANDLEABLE, THERMOSETTABLE, MOLDABLE COMPOSITION COMPRISING A HOMOGENOUS MIXTURE OF POLYANHYDRIDE MOLECULES, POLYEPOXIDE MOLECULES AND ANY UNREACTED OLEFINICALLY UNSATURATED MONOOXIRANE COMPOUND AND OLEFINICALLY UNSATURATED MONOMER IS OBTAINED.