Abstract: Described is a cyclic olefin-based copolymer has a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring. Also described is a medical container containing a cyclic olefin-based copolymer having a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring.

Abstract: Described is a cyclic olefin-based copolymer has a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring. Also described is a medical container containing a cyclic olefin-based copolymer having a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring.

Abstract: Provided is a cyclic olefin-based resin composition including a cyclic olefin-based polymer (A), and a hindered amine compound (Y) that contains a piperidyl group represented by General Formula (1) and a carboxylic acid amide group represented by General Formula (2) within the same molecule.

Abstract: Described is a cyclic olefin-based copolymer has a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring. Also described is a medical container containing a cyclic olefin-based copolymer having a constitutional unit (A) derived from an ?-olefin having 2 to 20 carbon atoms, a constitutional unit (B) derived from a cyclic olefin without an aromatic ring, and a constitutional unit (C) derived from a cyclic olefin having an aromatic ring.

Abstract: A cyclic olefin polymer composition comprising: [A] a specific cyclic olefin polymer having a softening temperature (TMA) of 120 to 300° C.; and [B] a specific cyclic olefin polymer having a glass transition temperature (Tg) of 50° C. or lower, wherein the absolute value of the difference between nD[A] and nD[B] is 0.014 or less in which nD[B] represents a refractive index of the cyclic olefin polymer [B] and nD[A] represent that of the cyclic olefin polymer [A], and the component [A] is contained in an amount of 50 to 95 parts by weight and the component [B] is contained in an amount of 5 to 50 parts by weight (provided that the total amount of the components [A] and [B] is defined as 100 parts by weight).

Abstract: An optical resin comprises a copolymer of 4-methyl-1-pentene and at least one monomer selected from the group consisting of 3-methyl-1-pentene, 3-methyl-1-butene and 4,4-dimethyl-1-pentene. The content of a constituent unit (a) derived from 4-methyl-1-pentene is equal to or more than 60 mol % and equal to or less than 99 mol %, and the total content of a constituent unit (b) derived from at least one monomer selected from the group consisting of 3-methyl-1-pentene, 3-methyl-1-butene and 4,4-dimethyl-1-pentene is equal to or more than 1 mol % and equal to or less than 40 mol %.

Abstract: An optical resin comprises a copolymer of 4-methyl-1-pentene and at least one monomer selected from the group consisting of 3-methyl-1-pentene, 3-methyl-1-butene and 4,4-dimethyl-1-pentene. The content of a constituent unit (a) derived from 4-methyl-1-pentene is equal to or more than 60 mol % and equal to or less than 99 mol %, and the total content of a constituent unit (b) derived from at least one monomer selected from the group consisting of 3-methyl-1-pentene, 3-methyl-1-butene and 4,4-dimethyl-1-pentene is equal to or more than 1 mol % and equal to or less than 40 mol %.

Abstract: A novel olefin-based polymer has excellent thermal resistance, as well as excellent balance among various properties. The olefin-based polymer is an olefin-based polymer comprising 50 to 100% by weight of a constituent unit derived from 4-methyl-1-pentene, and 0 to 50% by weight of a constituent unit derived from at least one olefin selected from olefins having 2 to 20 carbon atoms except 4-methyl-1-pentene, and having the following properties: i) the diad isotacticity is 70% or greater, ii) the ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) as measured by gel permeation chromatography (GPC) is in the range of 1.0 to 3.5, and iii) the intrinsic viscosity [?] is 0.5 (dl/g) or greater.

Abstract: A cyclic olefin polymer composition comprising: [A] a specific cyclic olefin polymer having a softening temperature (TMA) of 120 to 300° C.; and [B] a specific cyclic olefin polymer having a glass transition temperature (Tg) of 50° C. or lower, wherein the absolute value of the difference between nD[A] and nD[B] is 0.014 or less in which nD[B] represents a refractive index of the cyclic olefin polymer [B] and nD[A] represents that of the cyclic olefin polymer [A], and the component [A] is contained in an amount of 50 to 95 parts by weight and the component [B] is contained in an amount of 5 to 50 parts by weight (provided that the total amount of the components [A] and [B] is defined as 100 parts by weight).

Abstract: The present invention relates to olefinic compositions comprising a functionalized branched olefin copolymer containing functionalized sidechains derived from olefin and at least one chain end nucleophilic heteroatom containing functional group with at least one protic hydrogen, optionally with one or more copolymerizable monomers, the copolymer characterized by having A) a Tg<?10° C. as measured by DSC; B) a Ta>100° C.; C) an elongation at break of greater than or equal to 500 percent; D) a Tensile Strength of greater than or equal to 1,500 psi (10,300 kPa) at 25° C.; E) a TMA temperature>80° C., and F) an elastic recovery of greater than or equal to 50 percent.

Abstract: The present invention is to provide a method of compensating the wavelength dependence of birefringence of an optical part (B) which comprises using a film (a) made of a (co)polymer (?) obtained from at least one olefin selected among 4-methyl-1-pentene, 3-methyl-1-pentene, and 3-methyl-1-butene as a (co)monomer ingredient.

Abstract: Disclosed is a propylene based resin composition comprising 1 to 99% by weight of a specific propylene based polymer (A) and 99 to 1% by weight of an olefin based block copolymer (B) comprising specific polymer segments (B1), (B1?) and (B2) (wherein the total amount of the propylene based polymer (A) and the olefin based block copolymer (B) is 100% by weight).

Abstract: A novel olefin-based polymer has excellent thermal resistance, as well as excellent balance among various properties. The olefin-based polymer is an olefin-based polymer comprising 50 to 100% by weight of a constituent unit derived from 4-methyl-1-pentene, and 0 to 50% by weight of a constituent unit derived from at least one olefin selected from olefins having 2 to 20 carbon atoms except 4-methyl-1-pentene, and having the following properties: i) the diad isotacticity is 70% or greater, ii) the ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) as measured by gel permeation chromatography (GPC) is in the range of 1.0 to 3.5, and iii) the intrinsic viscosity [?] is 0.5 (dl/g) or greater.

Abstract: (i) A material is developed which modifies the rigidity, tensile elongation at break and impact resistance of resins such as a polypropylene resin when used as a modifier. The invention relates to an ethylene type ternary copolymer (A) comprising (i) an ethylene, propylene or 1-butene and a higher ?-olefin having 6 to 20 carbon atoms, wherein the content of ethylene is 70 to 89 mol %, the content of propylene or 1-butene is 10 to 22 mol % and the content of a higher ?-olefin having 6 to 20 carbon atoms is 1 to 11 mol % and the molar ratio of the higher-olefin having 6 to 20 carbon atoms to the structural units except for ethylene (either propylene or 1-butene and the higher ?-olefin having 6 to 20 carbon atoms) is 1/10 to 5/10 and the ethylene type ternary copolymer has a density of 0.857 to 0.885 g/cm3. The invention also relates to (ii) a propylene type resin composition comprising a propylene type polymer (B), the ethylene type ternary copolymer (A) and an inorganic filler (C).

Abstract: An ethylene-based copolymer is useful as a modifier for resins, e.g., polypropylene, and can be used in an ethylene/?-olefin copolymer composition containing the same ethylene-based copolymer. The inventive copolymer is characterize by: (a-1) having temperature (Tm) at the maximum peak in the endothermic curve, measured by a differential scanning calorimeter (DSC), of 40 to 90° C., (a-2) containing the component soluble in decane at normal temperature at 1 to 70% b weight, and (a-3) containing the component soluble in decane at normal temperature which comprises (i) a recurring unit derived from ethylene and (ii) a recurring unit derived from an ?-olefin of 4 or more carbon atoms, and in which a content of (i) the recurring unit derived from ethylene is 50 to 75% by mole.

Abstract: (i) A material is developed which modifies the rigidity, tensile elongation at break and impact resistance of resins such as a polypropylene resin when used as a modifier. The invention relates to an ethylene type ternary copolymer (A) comprising (i) an ethylene, propylene or 1-butene and a higher ?-olefin having 6 to 20 carbon atoms, wherein the content of ethylene is 70 to 89 mol %, the content of propylene or 1-butene is 10 to 22 mol % and the content of a higher ?-olefin having 6 to 20 carbon atoms is 1 to 11 mol % and the molar ratio of the higher-olefin having 6 to 20 carbon atoms to the structural units except for ethylene (either propylene or 1-butene and the higher ?-olefin having 6 to 20 carbon atoms) is 1/10 to 5/10 and the ethylene type ternary copolymer has a density of 0.857 to 0.885 g/cm3. The invention also relates to (ii) a propylene type resin composition comprising a propylene type polymer (B), the ethylene type ternary copolymer (A) and an inorganic filler (C).

Abstract: A composition that has an ethylene/?-olefin copolymer (A), a blowing agent (B), and optionally, an organic peroxide and a crosslinking assistant. The ethylene/?-olefin copolymer (A) has an ethylene/?-olefin copolymer (A1) having a density of not less than 0.880 g/cm3 and less than 0.900 g/cm3 and MFR (190° C.) of 0.1 to 50 g/10 min and an ethylene/?-olefin copolymer (A2) having a density of 0.900 to 0.930 g/cm3, MFR (190° C.) of 0.1 to 50 g/10 min and a main melting point peak at a position of not higher than 110° C., in a specific ratio. A foamed product, obtained by heat treatment of the composition, may be further subjected to secondary compression. A laminate made of the foamed product and a layer made of a polyolefin, a polyurethane, a rubber, a leather or an artificial leather. Footwear or a footwear part made of the foamed product or the laminate.

Abstract: The present invention relates to an ethylene-based copolymer useful as a modifier for resins, e.g., polypropylene, and an ethylene/&agr;-olefin copolymer composition containing the same ethylene-based copolymer.

Abstract: A composition that has an ethylene/&agr;-olefin copolymer (A), a blowing agent (B), and optionally, an organic peroxide and a crosslinking assistant. The ethylene/&agr;-olefin copolymer (A) has an ethylene/&agr;-olefin copolymer (A1) having a density of not less than 0.880 g/cm3 and less than 0.900 g/cm3 and MFR (190° C.) of 0.1 to 50 g/10 min and an ethylene/&agr;-olefin copolymer (A2) having a density of 0.900 to 0.930 g/cm3, MFR (190° C.) of 0.1 to 50 g/10 min and a main melting point peak at a position of not higher than 110° C., in a specific ratio. A foamed product, obtained by heat treatment of the composition, may be further subjected to secondary compression. A laminate made of the foamed product and a layer made of a polyolefin, a polyurethane, a rubber, a leather or an artificial leather. Footwear or a footwear part made of the foamed product or the laminate.

Abstract: The composition of the invention comprises an ethylene/&agr;-olefin copolymer (A), a blowing agent (B), and optionally, an organic peroxide and a crosslinking assistant. The ethylene/&agr;-olefin copolymer (A) comprises an ethylene/&agr;-olefin copolymer (A1) having a density of not less than 0.880 g/cm3 and less than 0.900 g/cm3 and MFR (190° C.) of 0.1 to 50 g/10 min and an ethylene/&agr;-olefin copolymer (A2) having a density of 0.900 to 0.930 g/cm3, MFR (190° C.) of 0.1 to 50 g/10 min and a main melting point peak at a position of not higher than 110° C., in a specific ratio. The foamed product of the invention is obtained by heat treatment of the composition. This foamed product may be further subjected to secondary compression. The laminate of the invention has a layer comprising the foamed product and a layer comprising at least one material selected from the group consisting of a polyolefin, a polyurethane, a rubber, a leather and an artificial leather.