Abstract: A polymeric composition comprising at least 95 wt. % of a metallocene-catalyzed polypropylene, and at least one of a clarifying agent or a nucleating agent is disclosed. The polymeric composition can have a lower haze value when compared with a second polymeric composition that has the same components in the same wt. % amounts as the polymeric composition except that the polypropylene in the second polymeric composition is a Ziegler-Natta catalyzed polypropylene. The haze values can be determined by ASTM D1003 at a thickness of 50 mils.

Abstract: A thermoplastic polyolefin composition and methods for its use is disclosed. The composition can include a thermoplastic polyolefin and a clarifying agent blend comprising a trisamide clarifier and sorbitol clarifier at a ratio of trisamide clarifier to sorbitol clarifier of 1:2 to 1:40 w/w.

Abstract: A polymeric composition may include a polyolefin or styrenic polymer, a metallic acrylate salt, and an acid neutralizer.

Abstract: A thermoplastic polyolefin composition and methods for its use is disclosed. The composition can include a thermoplastic polyolefin and a clarifying agent blend comprising a trisamide clarifier and sorbitol clarifier at a ratio of trisamide clarifier to sorbitol clarifier of 1:2 to 1:40 w/w.

Abstract: A method of forming a thermoformed article may include melt extruding polyethylene to form an extruded sheet. The rheological breadth parameter of the polyethylene may change by no more than about 5% after extrusion relative to the rheological breadth parameter of the polyethylene prior to extrusion. The extruded sheet may be thermoformed within a mold to form the thermoformed article. During thermoforming, the extruded sheet may be subjected to solid-state stretching in one or more directions. The thermoformed article may be retrieved from the mold. The polyethylene may have a rheological breadth parameter of from 0.20 to 0.40, a multimodal molecular weight distribution, a polydispersity (Mw/Mn) of from 5 to 18, a density ranging from 0.940 to 0.970 g/cc, may exhibit tensile strain-hardening, or combinations thereof.

Abstract: A process includes contacting a metallic acrylic salt with a polyolefin, forming a polyolefin composition. The process includes extruding the polyolefin composition, and pelletizing the extruded polyolefin composition. A production rate of pellets of the polyolefin composition may be equal to or greater than a production rate of pellets of the polyolefin prior to contact with the metallic acrylic salt without increasing extrusion pressure or motor amperes. The polyolefin composition may have a melt flow rate that is lower than the melt flow rate of the polyolefin prior to contact with the metallic acrylic salt. The metallic acrylic salt may only be contacted with the polyolefin to form the polyolefin composition during a start-up of an extruder and pelletizer.

Abstract: A styrene monomer reclamation process and system is described. The styrene monomer reclamation process includes providing a waste plastic. The waste plastic includes styrenic polymers. The waste plastic is formed into polymer particles. At least a portion of the polymer particles are dissolved in a solvent to form a polymer stream. The dissolved polymer particles are depolymerized to form a styrene monomer stream.

Abstract: A polymer composition may include polyolefin having a molecular weight distribution of greater than or equal to 8 as measured by GPC and a metallic acrylate salt. The polymer composition may be characterized by one or more of: a melt flow rate of from 0.1 g/10 min to 10 g/10 min; a melt flow viscosity between 2,000 Pa·s and 6,000 Pa·s; a die swell of between 2 and 8; and a die swell characteristic time of between 0.3 seconds and 1.2 seconds. The polymer composition may be in the form of foam. A process of forming foam may include supplying polymer composition including metallic acrylate salt and polyolefin resin, and mixing the polymer composition with foaming agent. A foam may include a polymer composition that includes polyolefin and polar polymer and does not include an ionomer. The foam may have a foam density of less than 0.25 g/cc.

Abstract: A method of forming a thermoformed article may include melt extruding polyethylene to form an extruded sheet. The rheological breadth parameter of the polyethylene may change by no more than about 5% after extrusion relative to the rheological breadth parameter of the polyethylene prior to extrusion. The extruded sheet may be thermoformed within a mold to form the thermoformed article. During thermoforming, the extruded sheet may be subjected to solid-state stretching in one or more directions. The thermoformed article may be retrieved from the mold. The polyethylene may have a rheological breadth parameter of from 0.20 to 0.40, a multimodal molecular weight distribution, a polydispersity (Mw/Mn) of from 5 to 18, a density ranging from 0.940 to 0.970 g/cc, may exhibit tensile strain-hardening, or combinations thereof.

Abstract: A polymeric composition may include a polyolefin or styrenic polymer, a metallic acrylate salt, and an acid neutralizer.

Abstract: A high impact polystyrene (HIPS) is made from styrene monomer and 3 to 20 wt % of an elastomeric component phase including polybutadiene rubber and styrene butadiene copolymer. The HIPS has a 60 degree gloss of 90 or more, a Gardner drop of at least 10 in-lb, and an Izod impact strength of 1.8 ft-lb/in or more. The HIPS can have salami morphology with rubber particle size between 1 and 1.3 microns.

Abstract: A polymer composition that includes a polyolefin having a molecular weight distribution of greater than or equal to 8 as measured by GPC and a metallic acrylate salt.

Abstract: A styrene monomer reclamation process and system is described. The styrene monomer reclamation process includes providing a waste plastic. The waste plastic includes styrenic polymers. The waste plastic is formed into polymer particles. At least a portion of the polymer particles are dissolved in a solvent to form a polymer stream. The dissolved polymer particles are depolymerized to form a styrene monomer stream.

Abstract: A styrene monomer reclamation process and system is described. The styrene monomer reclamation process includes providing a waste plastic. The waste plastic includes styrenic polymers. The waste plastic is formed into polymer particles. At least a portion of the polymer particles are dissolved in a solvent to form a polymer stream. The dissolved polymer particles are depolymerized to form a styrene monomer stream.

Abstract: A high impact polystyrene (HIPS) is made from styrene monomer and 3 to 20 wt % of an elastomeric component phase including polybutadiene rubber and styrene butadiene copolymer. The HIPS has a 60 degree gloss of 90 or more, a Gardner drop of at least 10 in-lb, and an Izod impact strength of 1.8 ft-lb/in or more. The HIPS can have salami morphology with rubber particle size between 1 and 1.3 microns.

Abstract: A high impact polystyrene (HIPS) is made from styrene monomer and 3 to 20 wt % of an elastomeric component phase including polybutadiene rubber and styrene butadiene copolymer. The HIPS has a 60 degree gloss of 90 or more, a Gardner drop of at least 10 in-lb, and an Izod impact strength of 1.8 ft-lb/in or more. The HIPS can have salami morphology with rubber particle size between 1 and 1.3 microns.

Abstract: A suction canister liner including a one-piece liner having a generally cylindrical shape with an open end, a closed end, a sidewall connecting the open end to the closed end, and a rim extending outward generally perpendicular to the sidewall at the open end. An inner surface of the sidewall at the open end of the liner is configured to receive a lid in a sealing engagement and the rim can engage an open-ended suction canister and support the liner within the suction canister.

Abstract: A high impact polystyrene (HIPS) is made from styrene monomer and 3 to 20 wt % of an elastomeric component phase including polybutadiene rubber and styrene butadiene copolymer. The HIPS has a 60 degree gloss of 90 or more, a Gardner drop of at least 10 in-lb, and an Izod impact strength of 1.8 ft-lb/in or more. The HIPS can have salami morphology with rubber particle size between 1 and 1.3 microns.

Abstract: A suction canister liner including a one-piece liner having a generally cylindrical shape with an open end, a closed end, a sidewall connecting the open end to the closed end, and a rim extending outward generally perpendicular to the sidewall at the open end. An inner surface of the sidewall at the open end of the liner is configured to receive a lid in a sealing engagement and the rim can engage an open-ended suction canister and support the liner within the suction canister.

Abstract: A method of making a container including thermoforming a polymeric sheet containing at least one foam layer and optionally having one or more solid layer(s) disposed adjacent to the foam layer and shaping the polymeric sheet into a container, wherein the container is an insulator and wherein the layers of the sheet are adhered to each other.