A polyamide composition excellent in balance between fluidity during molding and, for example, surface appearance, bleed-out resistance, impact resistance and rigidity in the form of a molded article, and also relates to a polyamide composition a polyamide (A), an ethylene/α-olefin copolymer (B) satisfying requirements (b-1) to (b-3), and 0.1 to 20.0 mass % of an ethylene/α-olefin copolymer (C) satisfying the requirements (c-1) to (c-5), provided that (A)+(B)+(C)=100 mass %.

A polyamide composition excellent in balance between fluidity during molding and, for example, surface appearance, bleed-out resistance, impact resistance and rigidity in the form of a molded article, and also relates to a polyamide composition a polyamide (A), an ethylene/α-olefin copolymer (B) satisfying requirements (b-1) to (b-3), and 0.1 to 20.0 mass % of an ethylene/α-olefin copolymer (C) satisfying the requirements (c-1) to (c-5), provided that (A)+(B)+(C)=100 mass %.

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.

The present invention relates to an ethylene/alpha-olefin copolymer having excellent volume resistance and light transmittance, and a method for preparing the same.

The present invention relates to an ethylene/alpha-olefin copolymer having excellent volume resistance and light transmittance, and a method for preparing the same.

The present invention relates to a composition for an encapsulant film, including an ethylene/alpha-olefin copolymer having excellent volume resistance and light transmittance, and an encapsulant film using the same.

The present invention relates to a composition for an encapsulant film, including an ethylene/alpha-olefin copolymer having excellent volume resistance and light transmittance, and an encapsulant film using the same.

Provided are bimodal linear low density polyethylene copolymers (B-LLDPE copolymers) that have a combination of improved properties comprising at least one processability characteristic similar or better than that of an unblended monomodal ZN-LLDPE and a dart impact property similar or better than that of an unblended monomodal MCN-LLDPE. For the various aspects, the B-LLDPE copolymer has a density from 0.8900 to 0.9300 g/cm.sup.3; a melt index (I.sub.2) from 0.1 g/10 min. to 5 g/10 min.; a M.sub.z from 600,000 to 1,900,000 g/mol; and a SHI from 5.35 to 75 η*(1.0)/η*(100). The B-LLDPE copolymer can be further characterized by a first melt flow ratio (I.sub.21/I.sub.2) from 32 to 140 and a first molecular weight ratio (M.sub.z/M.sub.w) from 4.5 to 11.

Provided are bimodal linear low density polyethylene copolymers (B-LLDPE copolymers) that have a combination of improved properties comprising at least one processability characteristic similar or better than that of an unblended monomodal ZN-LLDPE and a dart impact property similar or better than that of an unblended monomodal MCN-LLDPE. For the various aspects, the B-LLDPE copolymer has a density from 0.8900 to 0.9300 g/cm.sup.3; a melt index (I.sub.2) from 0.1 g/10 min. to 5 g/10 min.; a M.sub.z from 600,000 to 1,900,000 g/mol; and a SHI from 5.35 to 75 η*(1.0)/η*(100). The B-LLDPE copolymer can be further characterized by a first melt flow ratio (I.sub.21/I.sub.2) from 32 to 140 and a first molecular weight ratio (M.sub.z/M.sub.w) from 4.5 to 11.

Disclosed are ethylene polymer compositions containing a homogeneously-branched first ethylene polymer component and 15-35 wt. % of a homogeneously-branched second ethylene polymer component of higher density than the first ethylene polymer component. The ethylene polymer composition can be characterized by a density from 0.912 to 0.925 g/cm.sup.3, a ratio of Mw/Mn from 2 to 5, a melt index less than 2 g/10 min, and a CY-a parameter at 190° C. from 0.35 to 0.7. These polymer compositions have the excellent dart impact strength and optical properties of a metallocene-catalyzed LLDPE, but with improved machine direction tear resistance, and can be used in blown film and other end-use applications. Further, methods for improving film Elmendorf tear strength also are described.