摘要:
Disclosed is a production method of polypropylene having high MFR value and excellent product qualities with high productivity. The method enables to produce a propylene polymer by a gas phase process where the reaction heat is removed mainly by the heat of vaporization of liquefied propylene. The method is characterized by using a solid catalyst component (A) which is prepared by contacting components (A1), (A2) and (A3) shown below. Further disclosed are: a propylene polymer produced by the method; a propylene polymer composition; and a molded body of the composition. Component (A1): a solid component containing titanium, magnesium and a halogen as essential components. Component (A2): a vinyl silane compound. Component (A3): an organosilicon compound having an alkoxy group (A3a) and/or a compound having at least two ether bonds (A3b).
摘要:
Disclosed is a production method of polypropylene having high MFR value and excellent product qualities with high productivity. The method enables to produce a propylene polymer by a gas phase process where the reaction heat is removed mainly by the heat of vaporization of liquefied propylene. The method is characterized by using a solid catalyst component (A) which is prepared by contacting components (A1), (A2) and (A3) shown below. Further disclosed are: a propylene polymer produced by the method; a propylene polymer composition; and a molded body of the composition. Component (A1): a solid component containing titanium, magnesium and a halogen as essential components. Component (A2): a vinyl silane compound. Component (A3): an organosilicon compound having an alkoxy group (A3a) and/or a compound having at least two ether bonds (A3b).
摘要:
Disclosed is a production method of polypropylene having high MFR value and excellent product qualities with high productivity. The method enables to produce a propylene polymer by a gas phase process where the reaction heat is removed mainly by the heat of vaporization of liquefied propylene. The method is characterized by using a solid catalyst component (A) which is prepared by contacting components (A1), (A2) and (A3) shown below. Further disclosed are: a propylene polymer produced by the method; a propylene polymer composition; and a molded body of the composition. Component (A1): a solid component containing titanium, magnesium and a halogen as essential components. Component (A2): a vinyl silane compound. Component (A3): an organosilicon compound having an alkoxy group (A3a) and/or a compound having at least two ether bonds (A3b).
摘要:
Disclosed is a production method of polypropylene having high MFR value and excellent product qualities with high productivity. The method enables to produce a propylene polymer by a gas phase process where the reaction heat is removed mainly by the heat of vaporization of liquefied propylene. The method is characterized by using a solid catalyst component (A) which is prepared by contacting components (A1), (A2) and (A3) shown below. Further disclosed are: a propylene polymer produced by the method; a propylene polymer composition; and a molded body of the composition. Component (A1): a solid component containing titanium, magnesium and a halogen as essential components. Component (A2): a vinyl silane compound. Component (A3): an organosilicon compound having an alkoxy group (A3a) and/or a compound having at least two ether bonds (A3b).
摘要:
An electrode for a lithium battery, which electrode includes an electrode active material which can charge and discharge lithium ions (A), a carbonaceous conductive additive (B) and a binder (C). The carbonaceous conductive additive contains carbon fiber, the carbon fiber including a mixture of two kinds of carbon fibers having different diameter distributions on a number basis; and the fiber diameter distribution of the carbon fiber in the electrode has one or more maximum values at 5-40 nm and at 50-300 nm, respectively. Also disclosed is a lithium battery using the electrode. The electrode enables production of a lithium battery having a reduced discharge capacity decline.
摘要:
A vehicle perimeter monitor having a high range-finding performance of a short distance and capable of presenting correct information to a driver is provided. A radar 1 including a transmitting antenna 2 and a receiving antenna 3 is fixed on a support member 8 which is a support member integral with a door mirror 7. Accordingly, even if the driver changed viewing direction of the door mirror 7, the positions the transmitting antenna 2 and the receiving antenna 3 relative to the door mirror 7 are kept constant. Therefore, though a part of the radiated transmit wave may be reflected by the door mirror 7, by measuring the reflected wave by the door mirror 7 beforehand, the reflected wave can be canceled by a signal processing circuit part 5.
摘要:
Provided is a planar heating body characterized by comprising: a knitted structure; a plurality of first heating threads which are laterally woven with a space therebetween in the longitudinal direction in the knitted structure; and a plurality of conducting threads which are longitudinally woven in edge sections at both sides of the knitted structure in the lateral direction.