Abstract: Miscible, thermoplastic polyarylate-polyamide blends which are fully compatible one-phase polymer solutions. They exhibit a single glass transition temperature intermediate between the glass transition temperature of the two homopolymers. The blended materials exhibit excellent mechanical properties including solvent resistance, stress-crack resistance, melt fabricability, UV and weatherance and good strength at a weld line. Miscibility is accomplished by blending a polyarylate containing about 12 to 50 mole % tertiary butyl substituted aromatic nuclei, with an aliphatic-aromatic polyamide having a ratio of aliphatic to aromatic carbons of about 1.4 to about 2.5.

Abstract: An improved diester process is provided for preparing a polyarylate polymer which process comprises reacting at least one aromatic dicarboxylic acid and a diester derivative of a dihydric phenol and an ester-forming agent having no hydrogens alpha to a carbonyl group of the ester-forming agent. Polyarylates produced by the improved process of this invention have a low degree of coloration, melt stability and a low level of haze.

Abstract: Blends comprising from about 1 to about 99 percent by weight of a poly(aryl ether ketone co-carbonate) and from about 99 to about 1 percent by weight of a thermoplastic polymer selected from the group of a poly(aryl ether ketone), a poly(arylene sulfide), a poly(ether imide) or a poly(aryl ether).

Abstract: Novel thermoplastic elastomeric graft copolymers, formed via a cycloaddition reaction of an elastomer containing carbon-carbon double bonds with an aromatic polyether, end-capped with a 1,2-dihydroarylcyclobutenyl moiety, are described. The materials exhibit improved UV and thermal oxidative stability, attractive mechanical properties, and superior heat resistance. They are uniquely suited for impact modification of various thermoplastics such as polyesters, polyether imides, and the like.

Abstract: Novel, well-defined thermoplastic block copolymers containing polyarylate and polyamide blocks. Preferably formed via a cycloaddition reaction of a polyamide having at least one terminal double bond, with a polyarylate having at least one dihydroarylcyclobutenyl moiety. They display excellent mechanical properties, improved UV, solvent and stress-crack resistance; good heat resistance and are easy to melt fabricate. They show good compatability with the corresponding homopolymers and are uniquely suited as compatibilizing agents for polyamide-polyarylate blends.

Abstract: A moldable polymer composition comprising an acetophenone based bisphenol polyarylate resin and a monovinyl aromatic/N-arylmaleimide copolymer is disclosed. In one embodiment, the N-arylmaleimide containing copolymer is rubber modified by the incorporation of an elastomeric polymer during the formation of the copolymer. In another embodiment, the moldable polymer composition is rubber modified by the incorporation of an elastomeric polymer using any conventional method of blending.

Abstract: A composition of matter which comprises an elastomer grafted at a level of from about 40 to about 60 weight percent with a polymer matrix comprising recurring units of at least one free radical polymerizable monomer and its method of preparation are disclosed.

Abstract: An extrudable acrylic composition which incorporates an interpolymer produced by the polymerization of methyl methacrylate monomer, an N-substituted maleimide monomer, an alkyl acrylate monomer, and a difunctional reactive monomer is disclosed.

Abstract: Polymer alloys containing copolymers of methylmethacrylate/N-phenylmaleimide are disclosed. In one embodiment the polymer alloy is an alloy of methylmethacrylate/N-phenylmaleimide and styrene/maleic anhydride. In another embodiment, the polymer alloy is an alloy of methylmethacrylate/N-phenylmaleimide and styrene/maleic anhydride/N-phenylmaleimide.

Abstract: Polymer alloys containing copolymers of methylmethacrylate/N-phenylmaleimide are disclosed. In one embodiment the polymer alloy is an alloy of methylmethacrylate/N-phenylmaleimide and styrene/maleic anhydride. In another embodiment, the polymer alloy is an alloy of methylmethacrylate/N-phenylmaleimide and styrene/maleic anhydride/N-phenylmaleimide.

Abstract: An A-B-A triblock copolymer particularly suitable for use as an impact modifier for thermoplastic molding compositions containing an imide containing copolymer is disclosed. Molded compositions of the invention exhibit excellent impact strength and heat resistance and are transparent.

Abstract: Moldable compositions of a polyoxazoline and a hydrogenated elastomeric block copolymer grafted with ethylenically unsaturated carbonamide are disclosed which have good physical properties and chemical resistance.

Abstract: A polymer composition which contains a polycarbonate resin, a styrenic/maleimide/cyclic anhydride terpolymer, and an ethylene/propylene/nonconjugated diene terpolymer chemically grafted with either styrene/acrylonitrile copolymer, methylmethacrylate/N-phenylmaleimide copolymer or polymethylmethacrylate is disclosed. The composition exhibits excellent impact strength properties upon molding.

Abstract: A moldable composition produced by incorporating a macromonomer/alkyl acrylate/glycidyl methacrylate terpolymer into a blend of polycarbonate and a styrenic copolymer is disclosed. The macromonomer/alkyl acrylate/glycidyl methacrylate terpolymer is effective in enhancing the weld-line strength of the molded composition.

Abstract: Graft polymers between glassy polymers and elastomeric polymers prepared using Diels-Alder chemistry are disclosed.

Abstract: Polymer alloys containing copolymers of methylmethacrylate/N-phenylmaleimide are disclosed. In one embodiment the polymer alloy is an alloy of methylmethacrylate/N-phenylmaleimide and styrene/maleic anhydride. In another embodiment, the polymer alloy is an alloy of methylmethacrylate/N-phenylmaleimide and styrene/maleic anhydride/N-phenylmaleimide.

Abstract: An A-B-A triblock copolymer particularly suitable for use as an impact modifier for thermoplastic molding compositions containing an imide containing copolymer is disclosed. Molded compositions of the invention exhibit excellent impact strength and heat resistance and are transparent.

Abstract: An acrylic modified styrenic/N-arylmaleimide copolymer containing composition which exhibits excellent melt flow properties, impact strength and gloss upon molding is disclosed.

Abstract: An extrudable acrylic composition which incorporates an interpolymer produced by the polymerization of methyl methacrylate monomer, an N-substituted maleimide monomer, an alkyl acrylate monomer, and a difunctional reactive monomer is disclosed.

Abstract: Polymer alloys containing copolymers of methylmethacrylate/N-phenylmaleimide are disclosed. In one embodiment the polymer alloy is an alloy of methylmethacrylate/N-phenylmaleimide and styrene/maleic anhydride. In another embodiment, the polymer alloy is an alloy of methylmethacrylate/N-phenylmaleimide and styrene/maleic anhydride/N-phenylmaleimide.