OLEFIN POLYMERIZATION CATALYST, PROCESS FOR PRODUCING OLEFIN POLYMER, POLYPROPYLENE RESIN COMPOSITION AND ARTICLE COMPRISING THE SAME
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:US20130109789A1
公开(公告)日:2013-05-02
An olefin polymerization catalyst is obtained by bringing the following components (A), (B) and (C) into contact with one another:
(A) a solid catalyst component for olefin polymerization containing a titanium atom, a magnesium atom and a halogen atom;
(B) an organoaluminum compound; and
(C) a triether represented by formula (I).
An olefin polymerization solid catalyst can be provided having a sufficiently high polymerization activity and an ability to produce an olefin polymer with a low content of low-molecular weight components and amorphous components.
CATALYST COMPONENTS CATALYSTS FOR OLEFINIC POLYMERIZATION AND THE USE THEREOF
申请人:China Petroleum & Chemical Corporation
公开号:EP1666505A1
公开(公告)日:2006-06-07
The present invention relates to catalyst components and catalysts for olefinic polymerization. The catalyst components utilize magnesium chloride and silica as composite support, and the particle morphology thereof can be improved by regulating the ratio of magnesium chloride to silica. Further, the purpose of stabilizing the rate of catalytic polymerization reaction and improving the particle morphology of polymer so as to meet the requirements on catalyst performance of various polymerization processes can be achieved through the combination of the supports of the catalyst. In the meantime, when used in the polymerization of propylene, the catalysts of the present invention exhibit a relatively high polymerization activity and high stereospecificity.
An optical-member adhesive composition, including an adhesive material, reactive modified metal oxide particles having a volume average particle diameter of 1 to 500 nm, and organic light diffusing particles, and optionally including a silane coupling agent and a plasticizer; an optical-member adhesive layer formed from the optical-member adhesive composition; and a surface light source device including the specific light diffusion layer.
OPTICAL LAYERED BODY AND METHOD FOR MANUFACTURING SAME
申请人:Zeon Corporation
公开号:EP3258298A1
公开(公告)日:2017-12-20
An optical layered body including a substrate and an adhesive layer formed on the substrate, wherein the adhesive layer includes an acrylic adhesive composition containing an acrylic polymer, and a light scattering particle, the acrylic polymer is a copolymer of a copolymerizing component [I] which contains 40% by weight to 93% by weight of an aromatic ring-containing monomer (a1), and 7% by weight to 60% by weight of a hydroxyl group-containing monomer (a2), the acrylic polymer has a weight-average molecular weight of 200,000 or less, the light scattering particle has a volume concentration V relative to the adhesive layer of 3% to 35%, the acrylic adhesive composition has a refractive index of 1.52 to 1.67, and the light scattering particle has a refractive index of 1.4 to 1.49.
COMPOSITION FOR POWDER PAINT, POWDER PAINT, AND PAINTED ARTICLE
申请人:Asahi Glass Company, Limited
公开号:EP3266841A1
公开(公告)日:2018-01-10
To provide a powder coating material capable of forming a coating film excellent in weather resistance, coating film appearance and surface smoothness; and a coated article having a coating film made of such a powder coating material. A powder coating material comprising a powder composed of a first composition which is a first composition for powder coating material comprising a fluororesin having a fluorine content of at least 10% by mass and a plasticizer having a melting point of from 60 to 200°C and having a cyclic hydrocarbon group in the molecule, wherein the content of the plasticizer is from 0.1 to 40 parts by mass, to 100 parts by mass of the resin component contained in the first composition. And, a powder coating material comprising a powder composed of a second composition containing the fluororesin and a powder composed of a third composition containing a resin other than the fluororesin, wherein at least one of the second composition and the third composition contains a plasticizer, and the content of the plasticizer is from 0.1 to 40 parts by mass, to 100 parts by mass in total of the resin components contained in the second composition and the third composition.