摘要:
There are provided an ethylene-propylene copolymer having the following structural characteristics, and a polypropylene resin composition comprising the above copolymer and polypropylene having a melting temperature of 160° C. or higher: (1) its propylene content is 20 to 60% by mol; (2) its product of a monomer reactivity ratio is less than 2.5; (3) its intrinsic viscosity is more than 1.0 dl/g; (4) its molecular weight distribution is more than 3; (5) its glass transition temperature is lower than −40° C.; (6) its heat of crystallization is less than 5.0 J/g; (7) in a temperature rising elution fractionation method, its elution amount is 60% by weight or more in a temperature range of lower than 10° C., its elution amount is 3% by weight or more in a temperature range of 10° C. to lower than 55° C., and its elution amount is 5% by weight or less in a temperature range of 83° C. or higher, provided that the total elution amount is 100% by weight; and (8) an intensity ratio of a racemic peak to a meso peak in an ethylene-propylene binding moiety in a 13C-NMR spectrum is 0.01 to 0.7.
摘要:
A planar lighting device in which workability of filling process of filler for heat radiation is improved and heat generated from a point-like light source is efficiently radiated so as to achieve higher brightness is provided.In a planar lighting device according to the present invention provided with a light guide plate and a point-like light source arranged on a side end face of the light guide plate, a radiator plate made of a bottom portion and a side wall is further provided, a circuit board on which the point-like light source is mounted is fixed along the side wall, and a recess portion holding a filler for heat radiation is formed at a position corresponding to the point-like light source in the side wall. By this arrangement, determination of an appropriate application amount of the filler for heat radiation and management and storage after application are facilitated and the workability of the filing process can be improved.
摘要:
A producing method of a coated film is provided and includes: coating a coating solution that contains a light-transmitting resin and a solvent on a support and, subsequently applying first and second drying steps for drying a coated coating solution. The first drying step is carried out in a drying zone where the maximum wind speed on a surface of a coated layer is 1 m/sec or more, and the second drying step is carried out in a drying zone having a temperature of 50° C. or more higher than a temperature in a zone where the first drying step is carried out.
摘要:
There are disclosed a process for producing a solid catalyst component and a catalyst for α-olefin polymerization, and a process for producing an α-olefin polymer, wherein the process for producing a solid catalyst component comprises the steps of: (1) reducing a specific titanium compound with an organomagnesium compound in the presence of an organosilicon compound having an Si—O bond (and an ester compound), thereby obtaining a solid product, and (2) contacting the solid product with a halogeno compound of the 14 group element, at least one member selected from the group consisting of an electron donor compound and an organic acid halide, and a compound having a Ti-halogen bond, thereby obtaining the solid catalyst component.
摘要:
There are disclosed a process for producing a solid catalyst component and a catalyst for α-olefin polymerization, and a process for producing an α-olefin polymer, wherein the process for producing a solid catalyst component comprises the steps of: (1) reducing a specific titanium compound with an organomagnesium compound in the presence of an organosilicon compound having an Si—O bond (and an ester compound), thereby obtaining a solid product, and (2) contacting the solid product with a halogeno compound of the 14 group element, at least one member selected from the group consisting of an electron donor compound and an organic acid halide, and a compound having a Ti-halogen bond, thereby obtaining the solid catalyst component.
摘要:
This invention implements a variable-length code pipeline decoding process as hardware by providing additional bit processing means, reducing the load on external control, and clarifying encoded data shift means. For this purpose, in order to determine a code length and additional bit length, two different decode processes are executed, the overall process is separated into three stages, i.e., a stage for shifting out a code word of encoded data, a decode processing stage, and a symbol determination & additional bit processing stage, and these stages are executed in a pipeline manner.
摘要:
There are disclosed: (1) a process for producing a catalyst for olefin polymerization, which comprises the step of contacting with one another: (i) a solid catalyst component containing at least titanium, magnesium and halogen atoms, (ii) an organoaluminum compound, and (iii) a compound selected from the group consisting of (a) an oxygen-containing compound having a structure wherein at least two hydrocarbyloxy groups are bound to the same carbon atom, and (b) a cyclic ketone compound, and (2) a process for producing an olefin polymer, which comprises the step of polymerizing an olefin in the presence of the above-mentioned catalyst.
摘要:
A polypropylene laminated film containing a crystalline polypropylene layer and, laminated on at least one side of the layer of the crystalline polypropylene, a layer of a copolymer of propylene and at least one .alpha.-olefin of from 4 to 10 carbon atoms having a specific composition, melt flow rate and molecular weight distribution in which the .alpha.-olefin content in the cold xylene soluble portion of the random copolymer is less than 1.7 times the .alpha.-olefin content in the copolymer and the random copolymer satisfies the mathematical expression, B.ltoreq.1.05A-10, wherein A is a weight percentage of the content of said at least one .alpha.-olefin having from 4 to 10 carbon atoms in the random copolymer and B is a weight percentage of the cold xylene soluble portion in the random copolymer, is superior in low temperature heat sealability and hot tack property and moreover has a good transparency, blocking resistance and printability, wherein the random copolymer is obtained by gas phase polymerization substantially in the absence of a liquid medium, and using a catalyst system comprising (i) a solid catalyst component containing magnesium, titanium and a halogen as essential constituents, (ii) an organoaluminum compound and (iii) an electron donative compound.
摘要:
Data buffer apparatus comprising two connectors directly fittable respectively with connectors of data transmitting apparatus and receiving apparatus, and accumulating means for accumulating data. In this buffer apparatus, the data buffer apparatus is capable of a function for accumulating data, entered from the data transmitting apparatus through the first connector in a state in which the connector the date transmitting apparatus is fitted with the first connector, in the accumulating means; and a function for transmitting data, accumulated in the accumulating means, to a data receiving apparatus in a state in which the connector of the date receiving apparatus is fitted with the second connector.
摘要:
Data buffer apparatus comprising two connectors directly fittable respectively with connectors of data transmitting apparatus and receiving apparatus, and accumulating means for accumulating data. In this buffer apparatus, the data buffer apparatus is capable of a function for accumulating data, entered from the data transmitting apparatus through the first connector in a state in which the connector the date transmitting apparatus is fitted with the first connector, in the accumulating means; and a function for transmitting data, accumulated in the accumulating means, to a data receiving apparatus in a state in which the connector of the date receiving apparatus is fitted with the second connector.