Abstract:
A photopolymerizable composition is described, comprising an addition polymerizable compound having at least two ethylenically unsaturated bonds in the molecule, at least one photopolymerization initiator, and at least one of 2-mercapto-5-substituted thiadiazole compounds represented by formulae (I) and (II) ##STR1## wherein R represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkylthio group, or a substituted or unsubstituted aralkylthio group; and R' represents a substituted or unsubstituted alkylene group. The composition has a remarkably good photosensitivity.
Abstract:
A photopolymerizable composition is described, comprising (1) a non-gaseous ethylenically unsaturated compound which has at least two ethylenically unsaturated terminal groups and is capable of forming a polymer, (2) a thermoplastic polymeric binder, (3) a photopolymerization initiator which is activated by actinic radiation, and (4) at least one of certain heterocyclic compounds. The composition is useful as a photoresist for producing printed circuit boards, printing plates, etc., by etching or plating, and the photoresist has superior adhesion with respect to the base.
Abstract:
An easy process of producing a substrate for liquid crystal display device, which contribute to reducing the viewing angle dependence of color of a liquid crystal display device, which comprises the following steps [1] and [2] in this order: [1] subjecting a substrate having at least one optically anisotropic layer and at least one photosensitive polymer layer on a support to light exposure; [2] removing partial or entire part of the optically anisotropic layer and the photosensitive polymer layer by a physical mean.
Abstract:
An inkjet ink for color filter having fine pigment particles formed with a size in the order of nanometer dispersed in a medium containing a polymerizable monomer and/or a polymerizable oligomer, a color filter using the ink, methods of producing them, and a liquid crystal display device using them.
Abstract:
A wavelength monitor includes the following elements. An optical divider divides a beam of measured light into first and second divided beams of measured light. An interfering element converts the first and second divided beams of measured light into first and second parallel beams of measured light to cause interference between the first and second parallel beams of measured light with each other thereby generating an interfered beam of measured light. A light receiving element way including a plurality of light receiving elements receives the interfered beam of measured light. An interference signal converting unit receives output signals from the light receiving element array to generate interference signals different in phase by 90 degrees from each other. A signal processing unit receives the interference signals from the interference signal converting unit to obtain a wavelength of the measured light from the interference signals.
Abstract:
An object of the present invention is to provide a linear actuator in which reliability is improved, and performance is also easily improved. The present invention provides a linear actuator including a stator, a movable element having an iron member, and being reciprocatable with respect to the stator, a permanent magnet fixed to the stator so as to be opposed to the iron member, and a coil fixed to the stator. Because both the coil and the permanent magnet are fixed to the stator, electrical current does not have to be supplied to the movable element, and the feeder lines connected to the coil will not be broken due to the movement of the movable element. In addition, the weight of the movable element will not be increased even when the weigh of the permanent magnet is increased in order to obtain high magnetic flux density for improvement in performance. Moreover, because the movable element does not include a magnet, a magnetizing operation does not have to be applied to the movable element. The permanent magnets may be a pair in which the directions the magnetic poles thereof differ from each other, and two pairs of permanent magnets may be provided. The number of magnetic fluxes that run through the magnetic pole elements and the iron member can be increased by providing a magnetic reluctance section around the permanent magnets.
Abstract:
A thermoplastic elastomer composition obtained by dynamically heat-treating a mixture containing a thermoplastic resin (A) having a melting point of not less than 200° C. and an elastomer (B) having a constitutional unit derived from an ester group-containing monomer in the presence of, as a crosslinking agent (C), a polymer (C-1) comprising a (meth)acrylate (c-1) unit having a weight average molecular weight (Mw) of 1,000 to 30,000 and a molecular weight distribution (Mw/Mn) of 1.0 to 4.0 and/or a polymer (C-2) which comprises 5 to 35 mass % of the (meth)acrylate (c-1) unit and 65 to 95 mass % of an aromatic vinyl monomer (c-2) unit, the polymer (C-2) having a weight average molecular weight (Mw) of 1,000 to 30,000 and a molecular weight distribution (Mw/Mn) of 1.0 to 4.0. The composition has a good sea-island structure as a whole and excellent heat resistance, and is useful as a substitute for acrylic rubbers.
Abstract:
A thermoplastic elastomer composition of the invention, formed by dynamically crosslinking a polymer composition including a rubber and an olefinic resin and having an average particle size of rubber particles within a specific range, shows an excellent balance of mechanical properties such as flexibility and elastic recovery, and a moldability. Also an inclusion of a (meth)acrylate resin and a hydrogenated diene polymer provides a composition particularly excellent in scratch resistance. Also an inclusion of a maleimide compound provides a composition particularly excellent in injection fusibility. Also an inclusion of an undenatured organopolysiloxane of a specific viscosity and a denatured organopolysiloxane provides a composition particularly excellent in initial slidability and durable slidability.
Abstract:
A phase lock loop circuit includes operation means (CPU) 15 for previously calculating divider control data 11 to obtain a division number corresponding to an output frequency, and a divider switching memory circuit 2 for writing the divider control data 11 and reading a division value 10 every time an output 9 of a variable divider 1 is generated, thereby controlling the variable divider 1.
Abstract:
An optical receiver includes a squeezer for changing the quantum state of a signal lightwave to a squeezed state, a slave laser put in an injection locking state by the signal lightwave outputted from the squeezer, and an optical homodyne detector for carrying out optical homodyne detection for the signal lightwave outputted from the slave laser.