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AssigneeInstitut Francais du Petrole
InventorsYves Camberlin, Jacky Grenier, Jacques Vallet, Anthony Bonnet, Jean-Pierre Pascault, Mohamed Taha
Estimating the term…
A polymer composition comprises at least one thermoplastic polymer selected from the group formed by polyetherimides and polysulphones, at least one epoxy resin modified by at least one aromatic polyamine, and at least one other thermoplastic selected from the group consisting of a polyphenylene ether, a polyphenylene sulfide and an aromatic polyether. The epoxy resin is formed from at least one polyepoxide containing at least 2 epoxy groups in its molecule and the aromatic polyamine contains at least two primary amine groups in its molecule and preferably at least one alkyl substituent containing 1 to 12 carbon atoms located alpha to one of the amino groups. The molar ratio of the polyamine to the epoxy is such that, each amino group corresponds to 1.6 to 2.6 epoxy groups. The thermoplastic polymer content is preferably about 15% to 98% by weight with respect to the total weight of the polymer composition; the amount of epoxy resin modified by at least one aromatic polyamine is about 2% to 85% by weight with respect to the total weight of the polymer composition.
A polymer composition comprising at least one thermoplastic polymer selected from the group consisting of polyetherimedes and polysulphones, at least one epoxy resin modified by at least one aromatic polyamine, the modified epoxy resin being formed from at least one aromatic polyamine containing at least two primary amine groups, the epoxy resin being formed from at least one polyepoxide containing at least 2 epoxy groups, the mole ratio of polyamine to epoxy compound being such that each amine group corresponds to 1.6 to 2.6 epoxy groups, and at least one further thermoplastic comprising a polyphenylene ether.
A homogeneous polymer composition comprising 35-98% by weight of said polymer composition of at least one thermoplastic polyetherimide, at least one epoxy resin partially reacted with at least one aromatic polyamine, the epoxy resin being formed from at least one polyepoxide containing at least 2 epoxy groups, and the aromatic polyamine containing at least two primary amine groups, the mole ratio of polyamine to epoxy compound being such that each amine group corresponds to 1.6 to 2.6 epoxy groups, at least one further polymer comprising a polyphenylene ether, said polymer composition having been produced by mixing the thermoplastic polyetherimide, the polyphenylene ether, the epoxy resin and the aromatic polyamine in the molten state without a solvent at a temperature of about 10° to 25° C.
Dependencies are inferred from the claim text.