摘要:
A chlorinated propylene-based polymer of the present invention having a weight average molecular weight (Mw) as measured by gel permeation chromatography (GPC) of 5,000 to 100,000 and a chlorine content of 0.1 to 70% by mass has the following properties: (1) it has a high solubility in a non-aromatic solvent having a low environmental burden even when it has a low degree of chlorination, and (2) it can be inhibited from suffering a decrease in the properties inherent to polypropylenes, such as durability, mechanical properties, appearance and hydrophobicity, by regulating its degree of chlorination at a low value.
摘要:
The present invention provides a crystalline higher α-olefin copolymer obtained by copolymerizing at least two higher α-olefins having 10 or more carbon atoms or at least one higher α-olefin having 10 or more carbon atoms with at least one other olefin, wherein it satisfies certain conditions.
摘要:
The present invention provides a crystalline higher α-olefin copolymer obtained by copolymerizing at least two higher α-olefins having 10 or more carbon atoms or at least one higher α-olefin having 10 or more carbon atoms with at least one other olefin, wherein it satisfies certain conditions.
摘要:
A higher olefin polymer having a polar group which is produced by subjecting to an incorporation reaction of a polar compound or halogen compound into a higher α-olefin polymer satisfying the requirements of the following (1) and (2), which is obtained by polymerizing one or more higher α-olefins having 10 or more carbon atoms or copolymerizing one or more higher α-olefins having 10 or more carbon atoms with one or more other olefins and a method for producing a higher olefin polymer having a polar group which is obtained by polymerizing one or more higher α-olefins having 10 or more carbon atoms or copolymerizing one or more higher α-olefins having 10 or more carbon atoms with one or more other olefins to form a higher α-olefins polymer satisfying the requirements of the following (1) and (2) and subsequently subjecting to an incorporation reaction of a polar compound or halogen compound into the higher α-olefin polymer. (1) The content of units of a higher α-olefins having 10 or more carbon atoms is 50 mol % or more. (2) A single peak X1 which is ascribed to the side chain crystallization and observed at 15 deg
摘要:
Crosslinked olefin polymers which are reduced in stickiness and improved in rigidity, heat resistance, light resistance, and water resistance while retaining the molding properties such as injection moldability, spinnability, film-forming properties and the physical properties such as toughness (including elongation and break strength) and tackiness; and a process for the production thereof. Crosslinked olefin polymers which are obtained by reacting an α-olefin polymer produced by polymerization of at least one α-olefin having 6 or more carbon atoms or polymerization of at least one α-olefin having 6 or more carbon atoms with at least one other α-olefin with a crosslinking agent and which satisfy the following requirements: (1) the content of units of α-olefins having 6 or more carbon atoms is 50 mol % or more, (2) the molecular weight distribution (Mw/Mn) as determined by gel permeation chromatography (GPC) is 7.0 or more in terms of polystyrene, (3) the content of components having weight-average molecular weights (Mw) of 106 or more is 5% by mass or more as determined by GPC, and (4) the stereoregularity indication M4 is 75 mol % or less; and a process for the production of the polymers.
摘要:
The present invention relates to a heat storage material composition comprising 20 to 100% by weight of a heat storage material, 80 to 0% by weight of crystalline polyolefin (B) and 50 to 0% by weight of an elastomer (C), and the heat storage material described above contains a side chain-crystalline polymer (A), wherein the heat storage material described above comprises preferably a higher α-olefin polymer (a) containing 50 mole % or more of higher α-olefin having 10 or more carbon atoms and a petroleum wax (b) in which a melting point (Tm) is higher by 10° C. or more than that of the polymer (a). Provided is a heat storage material composition which has less bleeding and stickiness and is excellent in stability at high temperature and which can meet a change in temperature such as a difference in room temperature when applied to a material for floor heating and can avoid a heating state deviated to high temperature or low temperature.
摘要:
A higher olefin polymer having a polar group which is produced by subjecting to an incorporation reaction of a polar compound or halogen compound into a higher α-olefin polymer satisfying the requirements of the following (1) and (2), which is obtained by polymerizing one or more higher α-olefins having 10 or more carbon atoms or copolymerizing one or more higher α-olefins having 10 or more carbon atoms with one or more other olefins and a method for producing a higher olefin polymer having a polar group which is obtained by polymerizing one or more higher α-olefins having 10 or more carbon atoms or copolymerizing one or more higher α-olefins having 10 or more carbon atoms with one or more other olefins to form a higher α-olefins polymer satisfying the requirements of the following (1) and (2) and subsequently subjecting to an incorporation reaction of a polar compound or halogen compound into the higher α-olefin polymer. (1) The content of units of a higher α-olefins having 10 or more carbon atoms is 50 mol % or more. (2) A single peak X1 which is ascribed to the side chain crystallization and observed at 15 deg
摘要:
A process for producing a styrenic copolymer having a functional group and a syndiotactic configuration is provided. The process comprises bringing a metal compound into interaction with a vinyl compound having a functional group to mask the functional group and copolymerizing the vinyl compound having the masked functional group with a styrenic compound in the presence of a polymerization catalyst comprising (A) a transition metal compound, (B) at least one compound selected from compounds having oxygen and compounds which can form ionic complex compounds by reaction with the transition metal compound and (C) an organometallic compound. A styrenic copolymer which is a random, block or graft copolymer, preferably a random copolymer, of a vinyl compound having a functional group and a styrenic compound and has the repeating units derived from the styrenic compound having the syndiotactic configuration can be produced efficiently. The above styrenic random copolymer exhibits excellent physical properties such as excellent adhesion with various adhesives and excellent compatibility with various rubbers and is advantageously used for various applications as various types of molded articles.
摘要:
Provided is a styrenic polymer having a syndiotactic structure, of which the ratio P of the angular frequency, &ohgr;3000 (unit: rad/sec), when its storage elastic modulus G′ measured through dynamic viscoelastometry is 3000 (Pa), to the angular frequency thereof, &ohgr;30 (unit: rad/sec), when its storage elastic modulus G′ is 30 (Pa), P=[&ohgr;3000/&ohgr;30] satisfies the following formula (1): P=[&ohgr;3000/&ohgr;30]≧25 (1). The polymer has good melt flowability and improved moldability and melt tension, still having excellent mechanical strength, heat resistance and solvent resistance.
摘要:
The present invention provides a resin composition including 100 parts by mass of a resin component containing 80 to 99 mass % of a thermoplastic resin (A) and 20 to 1 mass % of a side-chain crystalline polymer (B), and 0.1 to 30 parts by mass of carbon nanotube (C). The composition has a stabilized thermoplastic resin/side-chain crystalline polymer phase structure, is free from laminar peeling, and is excellent in conductive (antistatic) property, solvent resistance, flow characteristics, flame retardancy, impact resistance, molding appearance, etc.