Patent classifications
C08F2500/07
LINEAR HIGH-DENSITY POLYETHYLENE WITH HIGH TOUGHNESS AND HIGH ESCR
An interpolymer product comprising: a first ethylene interpolymer comprising ethylene and an α-olefin having a weight-average molecular weight (M.sub.w) of greater than 250,000 and a density of less than 0.930 g/cm.sup.3, and a second ethylene interpolymer comprising ethylene and an α-olefin wherein the second ethylene interpolymer comprises a M.sub.w of less than 70,000 and a density of greater than 0.930 g/cm.sup.3; and wherein the interpolymer product comprises an environmental stress crack resistance (ESCR), measured according to ASTM D1693, Condition B, 10% IGEPAL CO-630, of greater than 90 hours. The interpolymer product may be manufactured in a continuous solution polymerization process utilizing at least two reactors employing at least one single site catalyst formulation and at least one heterogeneous catalyst formulation.
LINEAR HIGH-DENSITY POLYETHYLENE WITH HIGH TOUGHNESS AND HIGH ESCR
An interpolymer product comprising: a first ethylene interpolymer comprising ethylene and an α-olefin having a weight-average molecular weight (M.sub.w) of greater than 250,000 and a density of less than 0.930 g/cm.sup.3, and a second ethylene interpolymer comprising ethylene and an α-olefin wherein the second ethylene interpolymer comprises a M.sub.w of less than 70,000 and a density of greater than 0.930 g/cm.sup.3; and wherein the interpolymer product comprises an environmental stress crack resistance (ESCR), measured according to ASTM D1693, Condition B, 10% IGEPAL CO-630, of greater than 90 hours. The interpolymer product may be manufactured in a continuous solution polymerization process utilizing at least two reactors employing at least one single site catalyst formulation and at least one heterogeneous catalyst formulation.
POLYETHYLENE AND CHLORINATED POLYETHYLENE THEREOF
The present disclosure relates to a polyethylene, which is reacted with chlorine to prepare a chlorinated polyethylene having improved tensile strength and excellent processability during extrusion by optimizing a low molecular region in a molecular structure, and a CPE compound including the same.
POLYETHYLENE AND CHLORINATED POLYETHYLENE THEREOF
The present disclosure relates to a polyethylene, which is reacted with chlorine to prepare a chlorinated polyethylene having improved tensile strength and excellent processability during extrusion by optimizing a low molecular region in a molecular structure, and a CPE compound including the same.
Compression blow formed HDPE containers and methods of making the same
Compression blow formed articles having improved barrier properties and methods of making the same are provided herein.
Polymer blends for use in multilayer structure and multilayer structures comprising the same
The present invention provides polymer blends that can be used in a multilayer structure and to multilayer structures including one or more layers formed from such blends. In one aspect, a polymer blend includes a copolymer including ethylene and at least one of acrylic acid and methacrylic acid having an acid content greater than 4 and up to 25 weight percent based on the weight of the copolymer and having a melt index (I.sub.2) of 1 to 60 g/10 minutes, wherein the total amount of ethylene acrylic acid copolymer and ethylene methacrylic acid copolymer includes 45 to 99 weight percent of the blend based on the total weight of the blend, and a polyolefin having a density of 0.870 g/cm.sup.3 or more and having a melt index (I.sub.2) of 20 g/10 minutes or less, wherein the polyolefin includes 1 to 55 weight percent of the blend based on the total weight of the blend.
Process for the preparation of polymerized polyethylene wax
The present invention relates to a process for the preparation of a polyethylene wax, the process comprising the steps of providing a catalyst solution, wherein the catalyst solution comprises at least one activating compound, an alkylaluminoxane and a me-tallocene complex, wherein the molar ratio of the activating compound to aluminum comprised in the alkylaluminoxane is from 0.0005 to 0.20; and polymerizing ethylene, by contacting the ethylene and the catalyst solution.
Process for the preparation of polymerized polyethylene wax
The present invention relates to a process for the preparation of a polyethylene wax, the process comprising the steps of providing a catalyst solution, wherein the catalyst solution comprises at least one activating compound, an alkylaluminoxane and a me-tallocene complex, wherein the molar ratio of the activating compound to aluminum comprised in the alkylaluminoxane is from 0.0005 to 0.20; and polymerizing ethylene, by contacting the ethylene and the catalyst solution.
BIAXIALLY-ORIENTED POLYETHYLENE FILMS FOR THERMOFORMING, PROCESS FOR THE PRODUCTION THEREOF, THEIR USE, A PROCESS FOR THERMOFORMING AND ITS PRODUCTS
A biaxially-oriented film for thermoforming is disclosed including at least 75% by weight polyethylene and at least 95% by weight polyolefins, based on the total mass of the film. The polyethylene has an elongation at break of at least 7 in the stress-strain diagram, wherein the stress-strain diagram is measured at a temperature of 10° C. below the melting point of the polyethylene and the melting point is determined by differential scanning calorimetry using a heating rate of 10° C. per minute. A process for producing such films and to the use thereof are disclosed. A process for producing shaped bodies from such films and to the shaped bodies themselves are disclosed.
POLYETHYLENE-BASED COMPOSITION AND BIAXIALLY ORIENTED POLYETHYLENE-BASED ARTICLES
A polyethylene-based composition may include an ethylene-based copolymer produced from ethylene and one or more C3-C10 alpha olefin comonomers, wherein the ethylene-based copolymer has: a density ranging from 945 kg/m.sup.3 to 961 kg/m.sup.3 according to ASTM D792, a melt flow rate (MFR.sub.2) ranging from 0.5 g/10 min to 3.0 g/10 min according to ASTM D1238 at 190° C./2.16 kg, a molecular weight distribution (Mw/Mn) ranging from 3 to 25, and a stress exponent (SEx) ranging from 1.0 to 1.8.