Abstract: Provided is a copolymer of a conjugated diene compound and a non-conjugated olefin, the copolymer being a random copolymer including randomly arranged monomer units of the conjugated diene compound and of the non-conjugated olefin, in which the non-conjugated olefin is preferably an acyclic olefin, the non-conjugated olefin preferably has 2 to 10 carbon atoms, and specific examples of the non-conjugated olefin preferably include ethylene, propylene, and 1-butene.

Abstract: Provided is a copolymer of a conjugated diene compound and a non-conjugated olefin, the copolymer being a tapered copolymer including: at least one of a block sequence including monomer units of the conjugated diene compound and a block sequence including monomer units of the non-conjugated olefin; and a random sequence including randomly arranged monomer units of the conjugated diene compound and monomer units of the non-conjugated olefin.

Abstract: An object of the present invention is to provide a rubber composition which not only realizes sufficiently low heat generation properties but also exhibits more excellent crack growth resistance than the conventional rubber composition. The rubber composition contains in 100 mass % of rubber components thereof: 20-80 mass % of natural rubber in which the total nitrogen content in natural rubber latex is in the range of 0.1 mass % to 0.4 mass % (exclusive of 0.1 mass % and inclusive of 0.4 mass %); and butadiene-based polymer having cis content of 90% or higher.

Abstract: A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer, and reacting the reactive polymer with a halosilane compound containing an amino group.

Abstract: There are provided a rubber composition simultaneously improving low loss factor and wear resistance as compared with the conventional ones as well as a tire using such a rubber composition. The invention lies in a rubber composition using a modified conjugated diene rubber and being excellent in the low loss factor and wear resistance as well as a tire. The rubber composition of the invention is formed by compounding a filler to a rubber component containing (A) a modified conjugated diene rubber having a cis-bond content in conjugated diene portion of not less than 87% and a vinyl bond content of not more than 2% and containing a functional group reactive with a filler and (B) a modified polymer having a modifying functional group number per 1 molecule of an unmodified polymer of not less than 0.6.

Abstract: The projection type image display apparatus is equipped with a lamp unit (22), an optical block (21) which modulates light from the lamp unit and projects an image signal, a circuit board (24) having via holes and on which an external connector (25) is mounted, and a cabinet (2) for housing the aforementioned elements. The display apparatus is equipped with a back cover (26) provided to cover around the external connector from the outside and a dustproof cover (29) provided to cover around the external connector from the inside. A closed space is formed by the circuit board, the back cover (26) and the dustproof cover (29), and the dustproof cover closely shields at least a space below the circuit board from the exterior. Excellent dustproof characteristics enabling use even in installation environments with a large amount of dust and dirt can be obtained.

Abstract: An object of the present invention is to provide a rubber composition which not only realizes sufficiently low heat generation properties but also exhibits more excellent crack growth resistance than the conventional rubber composition. The rubber composition contains in 100 mass % of rubber components thereof: 20-80 mass % of natural rubber in which the total nitrogen content in natural rubber latex is in the range of 0.1 mass % to 0.4 mass % (exclusive of 0.1 mass % and inclusive of 0.4 mass %); and butadiene-based polymer having cis content of 90% or higher.

Abstract: This invention relates to a rubber composition being excellent in the low heat buildup and fracture properties (resistance to crack growth). and more particularly to a rubber composition, characterized by compounding 10-100 parts by mass of an inorganic filler and/or carbon black based on 100 parts by mass of a rubber component including not less than 10 mass % of a modified conjugated diene-based polymer having a cis-1,4 bond content of not less than 90% and a vinyl bond content of not more than 1.2% and a primary amino group. In this case, the modified conjugated diene-based polymer is obtained by (1) reacting the predetermined conjugated diene-based polymer having an active terminal with a compound having two or more predetermined functional groups and (2) further reacting the resulting product with a compound having a primary amino group.

Abstract: Provided is a PDP in which a weak discharge is always generated in a stable manner to lower the firing voltage, the generation of the reset luminous points is restricted to improve the image quality, and reduction of the luminous efficiency and reduction of the luminance are restricted to improve the luminance. A manufacturing method of the PDP is also provided. The PDP includes a front panel and a back panel arranged to face each other with a discharge space between the panels. A phosphor layer is provided in an area of the back panel that faces toward the discharge space. Part of the surface of the phosphor layer is covered with a phosphor-coating film as a high ? member. The phosphor-coating film is made of a material having a higher secondary electron emission coefficient than a material of the phosphor layer. The high ? member and the remaining are of the surface of the phosphor layer are exposed to the discharge space.

Abstract: The invention provides a method for producing a modified conjugated diene (co)polymer, the method including comprising: a modification reaction step including causing an organic silane compound to react with a conjugated diene (co)polymer having an active site at the active site, the organic silane compound having a characteristic group for forming a silanol group through hydrolysis and, in the vicinity of the characteristic group, (i) a functional group which binds the organic silane compound to the conjugated diene (co)polymer via addition to or substitution at the active site and which promotes reaction between the silanol group and a reinforcing filler after the addition or substitution reaction, or (ii) a functional group which promotes reaction between the silanol group and a reinforcing filler, and a hydrolyzation step performed after the modification reaction step; a modified conjugated diene (co)polymer having, at a molecular end of the conjugated diene (co)polymer, a silanol group, and a functional

Abstract: The present invention provides a plasma display panel driving method and a plasma display device, each of which is capable of securing image quality and realizing an improvement of a drive margin and a reduction in power consumption even in the case of an ultra high definition panel. The present invention divides a plurality of display electrode pairs into a plurality of display electrode pair groups. For each of the display electrode pair groups, the present invention divides one field period into a plurality of sub-fields, each including an address period and a sustain period, such that the address periods with respect to the display electrode pair groups do not overlap one another, the address period being a period in which an address process of causing address discharge in the discharge cell which should emit light is carried out, the sustain period being a period in which first and second sustain pulses are applied to a scan electrode and a sustain electrode.

Abstract: In a driving method of a plasma display panel of the present invention, plural display electrode pairs are divided into plural display electrode pair groups and one field is divided into plural sub-fields. The length of the sustain period is compared to the length of the erase period. If the sustain period is longer than the erase period, sustain discharge and erase discharge are performed for each of the display electrode pair groups, while if the sustain period is shorter than the erase period, sustain discharge and erase discharge of one display electrode pair group are synchronized with those of another display electrode pair group. For a sub-field with a largest luminance weight or a sub-field with a highest lighting ratio, sustain discharge and erase discharge of one display electrode pair group are synchronized with those of another display electrode pair group without fail.

Abstract: This invention relates to an aromatic vinyl compound-conjugated diene compound copolymer capable of giving excellent wear resistance and resistance to wet skid to a tire, and more particularly to an aromatic vinyl compound-conjugated diene compound copolymer obtained by an addition polymerization of an aromatic vinyl compound and a conjugated diene compound in the presence of a polymerization catalyst composition comprising at least one specified metallocene complex selected from the group consisting of a metallocene complex represented by the following general formula (I): (wherein M is a lanthanoid element, scandium or yttrium, and CpR is independently a non-substituted or substituted indenyl, and Ra to Rf are independently an alkyl group having a carbon number of 1-3 or a hydrogen atom, and L is a neutral Lewis base, and w is an integer of 0-3) and so on, wherein a content of cis-1,4 bond in a conjugated diene compound portion is not less than 80%.

Abstract: A simple, low cost drive circuit secures a sufficient number of subfields in a high resolution panel. The plasma display panel drive circuit groups plural sustain electrodes into first and second sustain electrode groups, and applies sustain pulses in the sustain period. The first and second sustain pulse generating circuits generate and apply sustain pulses to first and second electrode paths. First and second specific voltage application circuits apply a first specific voltage to the first and second electrode paths. The voltage selection circuit selects one of a plurality of voltages including at least a second specific voltage and a third specific voltage, and generates a selected voltage. The first and second sustain pulse generating circuits generate the sustain pulses based on the second specific voltage when the selected voltage is the second specific voltage, and when the selected voltage is the third specific voltage, apply the third specific voltage to the first and second electrode paths.

Abstract: A plasma display panel drive circuit assures a sufficient number of subfields in a high resolution panel, is low cost, and is resistant to producing brightness differences. The plasma display panel drive circuit segments plural sustain electrodes into a first sustain electrode group and second sustain electrode group, applies sustain pulses in the sustain period, and includes the following devices: a sustain pulse generating circuit that generates sustain pulses; a specific voltage application circuit that applies a specific voltage to a first electrode path to the first sustain electrode group, and a second electrode path to the second sustain electrode group, at respective specific times; and a separation switch circuit that is connected between the sustain pulse generating circuit and the first electrode path and second electrode path, and electrically isolates the sustain pulse generating circuit from either the first electrode path or the second electrode path.

Abstract: This invention provides a polybutadiene capable of improving wear resistance and resistance to crack growth in a rubber composition and a tire, wherein values of e, f and g derived from the following determinant (I): ( 1.7455 0 - 0.0151 - 0.0454 0.4292 - 0.0129 - 0.007 0 0.3746 ) ? ( log 10 ? ( a / d ) log 10 ? ( a / b ) log 10 ? ( a / c ) ) = ( e f g ) ( I ) (wherein a is a mountain peak value around 1130 cm?1 in a transmittance spectrum through Fourier transform infrared spectroscopy (FT-IR), and b is a valley peak value around 967 cm?1, and c is a valley peak value around 911 cm?1, and d is a valley peak value around 736 cm?1) satisfy relationships of equation (II): (Calculated value of cis-1,4 bond)=e/(e+f+g)×100?99 and equation (III): (Calculated value of vinyl bond)=g/(e+f+g)×100?0.

Abstract: A plurality of display electrode pairs are divided into two display electrode pair groups I and II. One field is divided into M (M is an integer of 2 or more) sub-fields SFL (L=1 to M) each including a wall voltage adjusting period, an address period, and a sustain period. Based on a sustain period T1 of a K-th sub-field SFK and a wall voltage adjusting period T2 positioned between the sustain period T1 and the address period of a (K+1)-th sub-field, if T1>T2, a first driving method in which the sustain period T1 and the wall voltage adjusting period T2 are set for each of the display electrode pair groups I and II is used in the sub-field SFK, and if T1<T2, a second driving method in which the sustain periods T1 are set so as to be synchronized with each other and the wall voltage adjusting periods T2 are set so as to be synchronized with each other among the display electrode pair groups I and II is used in the sub-field SFK.

Abstract: An object is to provide a method for driving a PDP, which may be a super high-definition panel, and a PDP device capable of assuring the sufficient number of subfields to maintain the image quality and displaying images with the sufficient luminance. To achieve the above object, one field period is divided into a plurality of subfields each having an address period and a sustain period. A plurality of display electrode pairs are divided in to a plurality N of display electrode pair groups. A start time point of a subfield is set for each display electrode pair group. When a time required for performing one address operation on all the discharge cells of the panel is represented by Tw, the time length of a sustain period of each of the subfields in each of the display electrode pair groups is defined not to exceed Tw×(N?1)/N.

Abstract: A method of driving a plasma display panel of the present invention, is a driving method of a display panel including plural display electrode pairs (24) each including a scan electrode (22) and a sustain electrode (23) extending along each other, plural data electrodes (32) crossing the plural display electrode pairs (24) and discharge cells respectively formed at positions where the display electrode pairs (24) and the data electrodes (32) cross each other.

Abstract: A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer, and reacting the reactive polymer with a halosilane compound containing an amino group.