Abstract: Various barrier films are described that include barrier layers that contain ethylene vinyl alcohol copolymers and elastomers. Polyolefin elastomers can be used such as ethylene octene copolymers. The barrier films can also include secondary barrier layers that contain one or more norbornene copolymers.

Abstract: Compositions comprising from about 30% to about 95% of one or more RF-active functionalized ethylene copolymers and one or more propylene based plastomers are described. When formed into films or thin layers, the films exhibit a combination of low noise properties and good RF weldability characteristics. Also described are multilayer assemblies using such films and various articles incorporating such. Also described are methods of determining minimum thicknesses of an RF weldable layer in a multilayer film using the compositions.

Abstract: The invention provides an apparatus for the continuous measurement of the dynamic coefficient of friction and/or static coefficient of friction of a material, which comprises at least the following: A) two rotating rollers, R1 and R2, B) one roller S1, C) optionally, one static roller S2, D) two sets of force detectors, F1 and F2, and wherein S1 is located between R1 and R2 to form a wrap angle (?), and wherein the wrap angle (?) is less than 90°, and wherein F1 is attached to R1, and F2 is attached to R2.

Abstract: Solid state draw a laminated polymer billet containing two or more polymer compositions laminated to one another to prepare an oriented polymer composition.

Abstract: A process for improving the barrier performance of a plasma coated object comprising a polyolefin is disclosed. The process involves ensuring that the surface of the object to be coated is smooth as characterized by having a root-mean-square surface roughness that varies by less than the thickness of the coating to be applied, typically less than 100 nm. The invention also relates to a process for improving the stain resistance of polyolefin based articles comprising plasma polymerizing an organosilicon compound under conditions to deposit a polyorganosiloxane layer onto the article and/or (b) plasma polymerizing a organosilicon compound under conditions to deposit a silicon oxide layer directly on the article or onto a polyorganosiloxane layer prepared according to step (a).

Abstract: The invention relates to a polar group functionalized copolymer useful to prepare a nanocomposite polymer and to the nanocomposite polymer, wherein the polar group functionalized copolymer useful to prepare a nanocomposite polymer and the nanocomposite polymer are as defined in the specification.

Abstract: Structural insulation sheathing (SIS), preferably in the form of a panel, comprises a structural facer and an insulation member. The structural facer and insulation members are in intimate, planar contact with one another, both are plastic, and the SIS structure meets both the structural (i.e., ASTM E72) and insulation (R>2) requirements for the North American residential market. The structural facer member of the SIS structure is high-density polyolefin foam. The structural facer comprises a skin/core structure with the skins of a higher density than the core, and the structural facer has a flexural modulus typically of at least about 30,000 pounds per square inch (psi). The insulation member of the SIS is a foamed sheet of thermoplastic, e.g., polyisocyanurate.

Abstract: A process for preparing an adherent coating on an object (as well as the coated object) by first plasma polymerizing a first organosilicon compound under conditions to deposit a polyorganosiloxane layer onto the object; and/or then plasma polymerizing a second organosilicon compound under conditions to deposit a silicon oxide layer on the polyorganosiloxane layer or directly on the object, the object comprising a polymer composition comprising (i) from 99 to 50 weight percent of a polymer having more than 90 weight percent monomer units containing three carbons and optionally monomer units selected from the group consisting of alpha olefins containing two carbons and/or from four to twelve carbons, and (ii) from 1 to 50 weight percent of a second copolymer comprising monomer units selected from the group consisting of alpha olefins containing two carbons and alpha olefins containing from four to twelve carbons and optionally up to 10 weight percent of a diene monomer containing less than thirteen carbons; or

Abstract: A cation exchanging layered material having a cation exchange capacity satisfied by ion-exchangeable organic and inorganic cations, the ion-exchangeable organic cation content of the betastructured cation exchanging layered material being in the range of from ten to ninety-five percent of the cation exchange capacity of the cation exchanging layered material. The structure of the material is unique and is defined as a “betastructure”. A nanocomposite polymer incorporating such a “betastructured” cation exchanging layered material with a polymer.

Abstract: A cation exchanging layered material having a cation exchange capacity satisfied by ion-exchangeable organic and inorganic cations, the ion-exchangeable organic cation content of the betastructured cation exchanging layered material being in the range of from ten to ninety-five percent of the cation exchange capacity of the cation exchanging layered material. The structure of the material is unique and is defined as a “betastructure”. A nanocomposite polymer incorporating such a “betastructured” cation exchanging layered material with a polymer.

Abstract: Disclosed is a polymer blend composition containing a branched aromatic carbonate polymer and a rubber-modified monovinylidene aromatic copolymer comprising a star-branched rubber and optionally, a linear rubber. The polymer blend compositions according to the invention have a desirable balance of processability and when molded, impact strength.

Abstract: A process for reducing polymer surging, lowering pressure and temperature fluctuations, and reducing polymer degradation while providing good overall throughput rate when plasticating and extruding low bulk density polycarbonate materials. The process involves a two-stage extrusion screw having a feed section with a constant channel depth of at least about 12 percent of the screw diameter and a transition section having a compression ratio of at least about 3:1. Thermoplastic low bulk density polycarbonate materials are extruded through a die in the shape of sheets, profiles, or films.

Abstract: Disclosed is a polymer blend composition containing an aromatic carbonate polymer and a rubber-modified monovinylidene aromatic copolymer comprising a star-branched rubber and optionally, a linear rubber. The polymer blend compositions according to the invention have a desirable balance of processability and when molded, impact strength.

Abstract: A polymer blend composition with a good balance of high impact resistance and moldablity with reduced tendencies of delamination in molded articles is prepared by admixing with polycarbonate a substantially linear ethylene polymer or linear ethylene polymer, and a compatibilizing graft copolymer of a styrene and acrylonitrile copolymer grafted to an ethylene, propylene, and optional diene copolymer.

Abstract: Improved branched carbonate polymer blend compositions are prepared comprising a branched carbonate polymer component and a different linear carbonate polymer component. The branched carbonate polymers according to the invention are especially suitable for use in extrusion, blow molding, thermoforming and foaming processes and provide improved parts or articles.

Abstract: An extruder screw having a plurality of plasticating sections sufficient for plasticating polymeric materials of different bulk density.

Abstract: An extruder screw having a plurality of plasticating sections sufficient for plasticating polymeric materials of different bulk density.

Abstract: Improved injection molded thin-wall corner parts are prepared using carbonate polymer blend compositions where an amount of a higher molecular weight branched carbonate polymer component (HMWB PC) is combined with a different second, lower molecular weight carbonate polymer component. A HMWB PC component is selected which is homogeneously dispersible in a blend with the second component. The carbonate polymer blends suitable for use according to the present invention have surprisingly improved combinations of physical properties and processability and provide improved injection molded parts.