A polypropylene preform for biaxial stretch blow molding using a liquid as a pressurizing medium. The polypropylene material, when measured with a differential scanning calorimeter (DSC), has a relationship between the melting start temperature (Ts), melting peak temperature (Tm), and melting enthalpy (ΔHm) exhibited as (Tm-Ts)ΔHm.

A process of forming a polymer with a blue light absorber chemically bonded to a polymeric backbone of the polymer includes mixing one or more olefin monomers with one or more functionalizedp-vinylstyrylanthracene monomers to form a mixture of reactants. The mixture includes less than 10 percent by weight of the one or more functionalizedp-vinylstyrylanthracene monomers. The process also includes polymerizing the mixture to produce a polymer with one or more blue light absorption characteristics.

The invention relates to a method for producing an EBM bottle with 0.90 to 1.5 dL/g from a bottle-grade PET post-consumer recycling flake, i.e., a recycled, post-consumer PET with a viscosity of 0.65 to 0.84 dL/g, using extrusion processes, solid state polycondensation processes, and a blowing process.

Extrusion blow molded containers and processes for making same. In some embodiments, the container can include a body that can have a top, a bottom, and a sidewall connected to the top and bottom. The body can define a volume. A first section of the sidewall can include an opaque polymer composition and a second section of the sidewall can include a translucent polymer composition that provides a viewing window into the volume. The translucent polymer composition can include a first polyethylene copolymer derived from ethylene and at least one C.sub.3 to C.sub.20 α-olefin. The first polyethylene copolymer can have an I.sub.2.16 (190° C./2.16 kg) of about 0.2 g/10 min to about 1 g/10 min, a melt index ratio of about 30 g/10 min to about 80 g/10 min, and a density of about 0.910 g/cm.sup.3 to about 0.940 g/cm.sup.3.

A method for manufacturing a fiber-reinforced resin tube body includes: a preparing step of preparing a cylindrical expandable body having fiber wound therearound; an installing step of installing the expandable body in a mold after the preparing step; a flowing step of flowing resin into the mold, in which the expandable body is placed, after the installing step; and an expanding step of expanding the expandable body toward an inner wall of the mold after the flowing step.

A composite film having a high dielectric permittivity engineered particles dispersed in a high breakdown strength polymer material to achieve high energy density.

A polymer composition comprises a thermoplastic polymer, a polymer additive selected from the group consisting of nucleating agents, clarifying agents, and combinations thereof, and a fluoropolymer. A molded article comprises at least one wall defining a cavity, the wall having an opening therein permitting access to the cavity. The wall comprises a polymer composition comprising a thermoplastic polymer, a polymer additive selected from the group consisting of nucleating agents, clarifying agents, and combinations thereof, and a fluoropolymer. A method for molding a polymer composition is also provided.

The present invention is directed to a process for making a low coefficient of friction (COF) high gloss polyolefin bottle by the following: a) adding a high gloss metallocene polyethylene during a manufacturing process on the outer layer of a container; b) adding a slip agent on the outer layer of the container wherein the container has a gloss range greater than 60 gloss units with a coefficient of friction of less than 0.25.

A preform is disclosed for producing a plastic container. The production of the preform as well as a plastic container that is produced from the preform and its production are also disclosed.

Linear low density polyethylene (LLDPE) that is prepared with a single site catalyst has relatively low modulus in comparison to a polyethylene of similar melt index and density made with a conventional Zeigler Natta catalyst. Films that are prepared from polyethylene having a low modulus have a soft and flexible “feel”, which is undesirable for some packaging applications. The present invention provides a method to increase the modulus of single site catalyzed polyethylene.