The present disclosure discloses a low-water-vapor-permeability polyolefin-elastomer film and its preparation method. The film comprises: 50-100 mass parts of a matrix resin, 0-40 mass parts of a modified resin, 0.001-2 mass parts of an activator, 0.1-3 mass parts of an organic peroxide, 0.02-5 mass parts of an assistant cross-linker, 0.02-2 mass parts of a silane coupling agent, 0.005-2 mass parts of a light stabilizer, and 0-20 mass parts of a water blocking filler. In the present disclosure, by adding the modified resin and the activator that have an active group, a cross-linking degree and a cross-linking density of the film are improved, and a water-vapor permeability is reduced; by adding the water blocking filler, the water blocking property of the film is further improved, thereby ensuring reliability of the assembly, and prolonging service life of the assembly.

Compositions for removing contaminants from plastics processing equipment are described herein. The compositions may include a polymeric carrier component, an oxidizing agent, an abrasive and/or a gas agent. Methods of preparing the compositions described herein and methods of removing contaminants from plastics processing equipment are also described.

Compositions for removing contaminants from plastics processing equipment are described herein. The compositions may include a polymeric carrier component, an oxidizing agent, an abrasive and/or a gas agent. Methods of preparing the compositions described herein and methods of removing contaminants from plastics processing equipment are also described.

Ethylene-based polymers having a density of 0.952 to 0.968 g/cm.sup.3, a ratio of HLMI/MI from 185 to 550, an IB parameter from 1.46 to 1.80, a tan δ at 0.1 sec.sup.−1 from 1.05 to 1.75 degrees, and a slope of a plot of viscosity versus shear rate at 100 sec.sup.−1 from 0.18 to 0.28 are described, with low melt flow versions having a HLMI from 10 to 30 g/10 min and a Mw from 250,000 to 450,000 g/mol, and high melt flow versions having a HLMI from 30 to 55 g/10 min and a Mw from 200,000 to 300,000 g/mol. These polymers have the processability of chromium-based resins, but with improved stress crack resistance and topload strength for bottles and other blow molded products.

An injection stretch blow-molded (ISBM) container prepared by way of injection molding a tubular preform followed by reheating and concurrently stretching and blow-molding the heated preform into the container. The container and preform comprise from 70 wt. % to 97.5 wt. % of a semi-crystalline polyolefin composition comprising one or polymers selected from polyethylene polymers and polypropylene polymers and from 2.5 wt. % to 30 wt. % of an alicyclic polyolefin composition, wherein the alicyclic polyolefin composition has a glass transition temperature, Tg, of from 80° to 145° C.

Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 15 to 75 weight percent of a propylene polymer having from 10-60% crystallinity, 30-50 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.

Disclosed is a polyolefin-based resin composition for a vehicle interior material including heat-treated waste coffee grounds. The resin composition includes a polyolefin-based resin, waste coffee grounds including a volatile matter (VM) in an amount less than about 20 wt % of the waste coffee grounds, a modified polypropylene, an inorganic filler, and a thermoplastic elastomer.

The present invention relates to a polymer composition comprising a first heterophasic propylene copolymer, a high density polyethylene, a second heterophasic propylene copolymer an inorganic filler and optionally a polyolefin based elastomer. The present invention further relates to a process for the preparation of said polymer composition. The present invention further relates to an article comprising such polymer composition. The polymer composition has high impact resistance and a good balance between impact resistance and warpage.

The present invention relates to a polymer composition comprising polyolefin based elastomer, a polyolefin and CaCO.sub.3. The present invention further relates to the use of said polymer composition. The present invention further relates to a process for the preparation of an article comprising said polymer composition. The present invention further relates to the use of said polymer composition.

A foam is formed from a composition comprising at least 50 wt.% of an ethylene/alphaolefin copolymer, an olefin block copolymer, or a blend thereof; from 30 wt.% to 50 wt.% of an E/X/Y/Z epoxy-containing ethylene interpolymer, where E is an ethylene monomer comprising greater than 50 wt.% of the interpolymer, X is an (meth)acrylate, alkyl (meth)acrylate, or vinyl acetate comprising from 0 to 40 wt.% of the interpolymer, Y is glycidyl methacrylate and comprises 0.5 to 13 wt.% of the interpolymer, and Z is a copolymer unit derived from comonomers selected from the group consisting of carbon monoxide, sulfur dioxide, and acrylonitrile and comprises from 0 to 10 wt.% of the interpolymer; from 0.5 wt.% to 5 wt.% of a blowing agent; from 0.1 wt.% to 1 wt.% of an activator; and less than 0.05 wt.% of a curing agent.