Abstract: Monolayer packages comprised of an oxygen scavenging composition suitable for direct contact with package contents and recycle with other polyester bottles are disclosed. The oxygen scavenging composition is comprised of a modified copolymer which is comprised of predominantly polyester segments and an oxygen scavenging amount of oxygen scavenging segments. The polyester segments comprise segments derived from typical bottling and packaging polyesters such as PET and PEN. Use of these oxygen scavenging copolymers in bottles provides a clear and rigid monolayer bottle similar in appearance to unmodified polyester bottles. In a series of preferred embodiments, bottles fabricated with the oxygen scavenging copolymers of this invention are over 99 wt % PET and contain less than 50 ppb of extractable components.

Abstract: Monolayer packages comprised of an oxygen scavenging composition suitable for direct contact with package contents and recycle with other polyester bottles are disclosed. The oxygen scavenging composition is comprised of a modified copolymer which is comprised of predominantly polyester segments and an oxygen scavenging amount of oxygen scavenging segments. The polyester segments comprise segments derived from typical bottling and packaging polyesters such as PET and PEN. Use of these oxygen scavenging copolymers in bottles provides a clear and rigid monolayer bottle similar in appearance to unmodified polyester bottles. In a series of preferred embodiments, bottles fabricated with the oxygen scavenging copolymers of this invention are over 99 wt % PET and contain less than 50 ppb of extractable components.

Abstract: High clarity polypropylene articles comprising an infrared absorbing agent such as carbon black in the amount of about 0.1 to 500 parts per million by weight of polymer. Containers such as bottles can be made at substantially improved processing rates by injection stretch blow molding.

Abstract: Monolayer packages comprised of an oxygen scavenging composition suitable for direct contact with package contents and recycle with other polyester bottles are disclosed. The oxygen scavenging composition is comprised of a modified copolymer which is comprised of predominantly polyester segments and an oxygen scavenging amount of oxygen scavenging segments. The polyester segments comprise segments derived from typical bottling and packaging polyesters such as PET and PEN. Use of these oxygen scavenging copolymers in bottles provides a clear and rigid monolayer bottle similar in appearance to unmodified polyester bottles. In a series of preferred embodiments, bottles fabricated with the oxygen scavenging copolymers of this invention are over 99 wt % PET and contain less than 50 ppb of extractable components.

Abstract: Processes for producing aromatic monomers useful for forming polyesters are disclosed. Cost effective steps employed in the processes permit small amounts of process-related materials typically removed from monomer to remain in an aromatic monomer product. In many cases, the presence of the process-related materials left in the monomer product by the cost effective process steps can enhance the performance of the monomer in certain applications.

Abstract: Processes for producing aromatic monomers useful for forming polyesters are disclosed. Cost effective steps employed in the processes permit small amounts of process-related materials typically removed from monomer to remain in an aromatic monomer product. In many cases, the presence of the process-related materials left in the monomer product by the cost effective process steps can enhance the performance of the monomer in certain applications.

Abstract: Processes for producing aromatic monomers useful for forming polyesters are disclosed. Cost effective steps employed in the processes permit small amounts of process-related materials typically removed from monomer to remain in an aromatic monomer product. In many cases, the presence of the process-related materials left in the monomer product by the cost effective process steps can enhance the performance of the monomer in certain applications. Aromatic monomer products and polymers produced therefrom having these advantages also are disclosed, as well as products such as pasteurizable bottles made from these polymers.

Abstract: Water blown, thermosetting unsaturated polyester-polyurethane hybrid foam compositions are formed by the reaction of an A side composition and a B side composition. The A side composition comprises a polyfunctional isocyanate compound and a free radical initiator. The B side composition comprises a mixture of: (i) an ethylenically unsaturated monomer solution having dissolved therein about 30-90 weight percent of a polyester polyol having at least one ethylenically unsaturated group per molecule which has predominantly hydroxyl end groups; (ii) an amine compound having two or more primary or secondary amine groups in an amount effective to react with the A side composition to form small urea domains finely dispersed within a continuous polyester-polyurethane hybrid phase; and (iii) about 25 to about 150 equivalents water based on 100 equivalents of active hydrogen in the B side.

Abstract: Polypropylene resins are improved in mechanical properties and in rigidity without loss in thermal processability when blended with polyphthalamide resins together with a minor amount of a carboxylated polyolefin compatibilizing aid. Filled compositions, including glass-filled polypropylenes are similarly benefited when blended with a polyphthalamide and a carboxylated polyolefin compatibilizing aid.

Abstract: This application relates to miscible blends of biphenyl containing poly(aryl sulfones) and isopropylidene based polyimides. These blends are suitable for printed wiring board substrates, flexible printed circuit boards, electrical connectors and fabricated articles requiring heat and chemical resistance. A method for extruding these articles is taught.

Abstract: Polyester-polyurethane hybrid resin molding compositions having a first, soft polyurea phase within a second, more rigid polyester-polyurethane phase are disclosed. The compositions are formed by the reaction of an A side composition and a B side composition. The A side composition comprises a polyfunctional isocyanate compound and a free radical polymerization catalyst. The B side composition comprises a mixture of (i) an ethylenically unsaturated monomer solution having dissolved therein about 40-90 weight percent of a substantially water-free, unsaturated polyester polyol having at least one dicarboxylic alkene moiety and having an acid number less than five; and (ii) a polyfunctional nitrogen-containing compound having at least one active hydrogen atom on each of at least two nitrogen atoms in each molecule, which, when reacted with the A side composition, has a molecular weight sufficient to form the first, soft polyurea phase.

Abstract: A method for the preparation of miscible blends comprising biphenyl-containing poly(aryl sulfones) and polyimides is disclosed. The process comprises adding the monomeric polycarboxylic acid and aromatic diamine components of the polyimide to a suitable polyaryl sulfone in a vented extruder and melt-processing the resulting mixture, thereby polymerizing the monomers to form the polyimide component of the blend.

Abstract: Improved polyphthalamide compositions which possess desirable heat resistance properties comprise a crystalline polyphthalamide component and a particulate thermotropic liquid crystalline polymer component in an amount sufficient to nucleate a melt of the polyphthalamide. Molded articles prepared from these compositions exhibit excellent mechanical and thermal properties, including expecially high crystalline uniformity throughout even when molded using molds heated below Tg of the polyphthalamide component, often facilitating molding using steam or hot water-heated molds.

Abstract: This application relates to miscible blends of biphenyl containing poly(aryl sulfones) and isopropylidene based polyimides. These blends are suitable for printed wiring board substrates, flexible printed circuit boards, electrical connectors and fabricated articles requiring heat and chemical resistance. A method for extruding these articles is taught.

Abstract: This invention relates to blends of amide-imide polymer or amide-imide-phthalamide polymer and polyaryletherketones which include an inorganic hydrate to stabilize the melt viscosity of the polymer blend. The invention also relates to a composition and a molded article.

Abstract: This invention relates to preparation of polyamide-imide foam by extruding foamable composition comprising polyamide-imide and volatiles into a confined expansion zone, expanding the composition therein and cooling the result. The resulting foams are essentially open-celled and exhibit good strength, insulating properties and other desirable features.

Abstract: Films having a thickness of about 0.5 to about 10 mils comprising about 0.1 to about 50 weight percent of aromatic sulfone polymers and about 99.9 to about 50 percent by weight of polyamide-imides are disclosed.The films are useful in those high temperature applications which require a specimen of 10 mils or less. The alloy film can also be used in the electrical/electronic field in such applications as flexible circuit boards. The alloy film can also be die punched into high temperature spacers and washers which cannot be injection molded due to their thin cross-section.

Abstract: Novel polymers and molding compositions are prepared from acyl halide derivatives of tricarboxylic acids and diamines and about 1 to about 10 percent by weight of phthalic anhydride, trimellitic anhydride or aniline moieties. The polymers are useful in engineering plastics.

Abstract: The toughness properties of a polyamide-imide copolymer are improved by the addition of polyetherimides. These copolymers are useful as engineering resins, films are molded objects.

Abstract: Novel polyamide-imide-phthalamide copolymers and polyamide-imide copolymers containing aromatic sulfone polymers are disclosed. These copolymers are useful in the manufacture of molded objects and engineering resins.