Abstract: A preparation process of solid polyhydroxycarboxylic acid comprising subjecting an organic solvent solution of polyhydroxycarboxylic acid to cooling.cndot.solidification and grinding. The preparation process can provide high molecular weight solid polyhydroxycarboxylic acid with ease and cheaply, can be converted with ease to a continuous system, and is useful in industry.

Abstract: A pellicle structure comprises a frame having a vertical through opening and a pellicle film spread on the upper the upper end of the opening of the frame. The pellicle film has a coating layer comprising a coating agent formed at least on the inner surface thereof, and a bonding portion for bonding the end edge of the frame to the peripheral edge of the pellicle film through an adhesive layer. The coating agent, in the bonding portion, is dissolved or dispersed in the adhesive so that the pellicle substrate is directly contacted by and bonded to the adhesive.

Abstract: A locking device for trunk lids comprises a latch for engaging with a striker, a ratchet for maintaining the engagement between the latch and the striker, an output member rotating by an electric motor against resilient force of a return spring, a moving bar provided between the ratchet and the output member so as to slide in a lateral direction, the moving bar having one end connected to the output member and the other end connected to a key cylinder, an engaging portion provided with the moving bar for engaging with the ratchet to release the ratchet from the latch when the moving bar laterally slides from an original position by the rotation of the output member or the key cylinder. The moving bar is restored to the original position by the resilient force of the return spring after the ratchet is disengaged from said latch.

Abstract: A process for producing an alpha-olefin polymer, which comprises polymerizing an alpha-olefin in the presence of a catalyst formed from(A) a solid catalyst component comprising an inorganic carrier and deposited thereon a compound of a transition metal of Group IVB of the periodic table treated with an organometallic compound, and(B) an aluminoxane.

Abstract: In accordance with the present invention, there are provided blow molded articles which are composed of specific copolyesters or specific polyester resin compositions and which are highly oriented so that the stretch index as defined by the following equations becomes not less than 130 cm. ##EQU1## The blow molded articles thus provided are excellent in transparency and also excellent in moldability and gas barrier properties and, moreover, excellent also in economical efficiency.

Abstract: A semiconductor device comprises a circuit substrate being provided with a first lead pattern and a second lead pattern on a front surface and rear surface thereof respectively. The first lead pattern includes a die mounting region and conductive leads. The second lead pattern includes first outer connecting terminal lands connected with the die mounting region by way of first vias, second outer connecting terminal lands connected with the conductive leads of the first lead pattern by way of second vias, and a ground plane connected with the first outer connecting terminal lands while being electrically and magnetically shielded from the second outer connecting terminal lands. Solder balls are mounted on the first and second outer connecting terminal lands respectively. A semiconductor die is fixedly mounted on the die mounting region. Bonding wires connect electrode pads mounted on the semiconductor die with the conductive leads respectively.

Abstract: A deodorizer comprises a hydrophilic solvent extract of fruit-bodies of champignon mushroom or powder of the extract as an effective component. The extract of champignon mushroom used as an effective component can be prepared by a method which comprises the step of immersing the mushroom in a hydrophilic solvent at a temperature ranging from 60.degree. to 100.degree. C. for 15 minutes to 2 hours to perform extraction. The extract can further be treated to obtain the effective components in the form of powder.

Abstract: In accordance with the present invention, there are provided ethylene copolymers composed of structural units (a) derived from ethylene and structural units (b) derived from .alpha.-olefin of 3.about.20 carbon atoms, said ethylene copolymers having[A] a density of 0.85.about.0.92 g/cm.sup.3,[B] an intrinsic viscosity [.eta.] as measured in decalin at 135.degree. C. of 0.1-10 dl/g,[C] a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) as measured by GPC of 1.2.about.4, and[D] a ratio (MFR.sub.10 /MFR.sub.2) of MFR.sub.10 under a load of 10 kg to MFR.sub.2 under a load of 2.16 kg at 190.degree. C. of 8.about.50, and being narrow in molecular weight distribution and excellent in flowability.

Abstract: The present invention provides a polarizing film having high heat resistance and a high degree of polarization and excellent optical properties by dyeing a polymer film with a novel azo compound represented by the following formula (1) or (2): ##STR1##

Abstract: Disclosed are a polypropylene composition comprising 95-55 parts by weight of polypropylene (A) and 5-45 parts by weight of an ethylene/1-butene random copolymer (B-1) which contains constituent units derived from 1-butene in an amount of 15 to 25% by mol; and a polypropylene composition comprising 95-55 parts by weight of polypropylene (A) and 5-45 parts by weight of an ethylene/1-octene random copolymer (B-2) which contains constituent units derived from 1-octene in an amount of 8 to 20% by mol. Each of the random copolymers (B-1) and (B-2) has an intrinsic viscosity [.eta.] of 1.5 to 3.5 dl/g as measured in decalin, a glass transition temperature (Tg) of not higher than -50.degree. C., a crystallinity of less than 20% as measured by X-ray diffractometry, a randomness parameter (B value) of 1.0 to 1.4 as measured by .sup.13 C-NMR spectroscopy. With respect to a melting point as measured by a differential scanning calorimeter (DSC) as the main peak, the copolymer (B-1) has a value of not higher than 60.

Abstract: A lubricating oil containing an aromatic ether compound represented by the general formula, (R.sup.1).sub.n Ph--O-- (R.sup.2 O).sub.m --R.sup.3, wherein R.sup.1 stands each independently for a particular hydrocarbon group, an etheric oxygen-containing hydrocarbon group, an alkoxyl group, or a halogen-substituted hydrocarbon group, R.sup.2 stands each independently for an alkylene group having 2 to 4 carbon atoms, R.sup.3 stands for a hydrocarbon group having 1 to 12 carbon atoms, Ph stands for an aromatic substituent, n stands for an integer of from 1 to 5, and m stands for an integer of from 1 to 30. The lubricating oil has excellent lubricating property, cleaning property and electrically insulating property, exhibits excellent sealing property owing to its high viscosity and wear resistance, and further exhibits excellent compatibility with R-134a, etc. The lubricating oil can be favorably used for the refrigerators such as of electric refrigerators and room air conditioners that use R-134a as a coolant.

Abstract: A door lock device comprises a latch mechanism, an opening lever connected to door opening handles, a lock lever connected to a door key cylinder and an inside locking button, an anti-theft mechanism being displaceable between an anti-theft position for disabling an unlocking operation of the inside locking button and a canceling position for enabling the unlocking operation of the inside locking button, a motor for displacing the anti-theft mechanism, a controller for controlling the motor, and a sensor for detecting a locking operation of the key cylinder. When the sensor continuously detects the locking operation of the key cylinder during a predetermined period, the controller puts the anti-theft mechanism into the anti-theft position by operating the motor.

Abstract: The present invention relates to a solid printed substrate to be used for mounting electronic parts and a method of manufacturing the same. A metal base substrate having a plurality of copper foil layers stacked thereon is employed placing a thermoplastic polyimide sheet between each copper foil. The metal base substrate with a circuit pattern prepared on each copper foil layer is processed by bending or deep drawing into a box-shaped work which has an opening surface. The opening surface is processed so as to have a substantially equal area with that of the bottom of the substrate and have a collar portion on the periphery thereof. On the collar portion, leads to be used for connection with other wiring substrate are formed by patterning on copper foil layers.

Abstract: Disclosed are a polypropylene composition comprising 95-55 parts by weight of polypropylene (A) and 5-45 parts by weight of an ethylene/1-butene random copolymer (B-1) which contains constituent units derived from 1-butene in an amount of 15 to 25% by mol; and a polypropylene composition comprising 95-55 parts by weight of polypropylene (A) and 5-45 parts by weight of an ethylene/1-octene random copolymer (B-2) which contains constituent units derived from 1-octene in an amount of 8 to 20% by mol. Each of the random copolymers (B-1) and (B-2) has an intrinsic viscosity [.eta.] of 1.5 to 3.5 dl/g as measured in decalin, a glass transition temperature (Tg) of not higher than -50.degree. C., a crystallinity of less than 20% as measured by X-ray diffractometry, a randomness parameter (B value) of 1.0 to 1.4 as measured by .sup.13 C-NMR spectroscopy. With respect to a melting point as measured by a differential scanning calorimeter (DSC) as the main peak, the copolymer (B-1) has a value of not higher than 60.

Abstract: A molded article obtained by blow molding a propylene having a substantially syndiotactic structure or a resin composition comprising a polypropylene having a substantially syndiotactic structure and a copolymer of ethylene and propylene, and a multi-layer molded article obtained from this resin composition in which at least one surface of the molded article is a polypropylene layer having the substantially syndiotactic structure.

Abstract: This invention relates to a method of producing a taxane-type diterpene(s) wherein tissues or cells of a plant which produces taxane-type diterpene(s) are cultured in the presence of at least one member selected from the group consisting of jasmonic acids, wherein the tissues or the cells of the plant are cultured by controlling the oxygen concentration in a gas phase in a culture vessel to less than the oxygen concentration in the atmosphere from the initial stage of the culture, or by controlling the dissolved oxygen concentration in a fluid medium which is in contact with the tissue or the cell to less than the saturated dissolved oxygen concentration at that temperature from the initial stage of the culture, while oxygenic gas containing 0.

Abstract: An aqueous resin composition for outer surface coating of can, which comprises 30-70 parts by weight of a crosslinking agent (A) and 70-30 parts by weight of a film-forming resin (B). This resin composition has been developed so as to have excellent resistance to pasteurization, an excellent hardness and excellent processability and to give reduced fuming.In the resin composition, A is a co-condensation product between an alkyl-etherified amino resin and a hydroxycarboxylic acid and contains a mononuclear component in an amount of 40% or less; B is an acrylic resin or a polyester resin; and both A and B must be soluble or dispersible in an aqueous medium.

Abstract: A process for preparing a degradable copolymer of aliphatic polyester comprising the steps of reacting two or more kinds of aliphatic polyester homopolymer in the presence of a catalyst in a reaction mixture containing an organic solvent, and a degradable copolymer of aliphatic polyester obtained by said preparation process. The copolymers exhibits high transparency in addition to excellent strength and elongation, can be processed into various molded articles and formed items such as films and filaments, and can provide heat resistance by heat treatment of said molded articles and formed items. The copolymer can be suitably utilized for processed articles such as a film, breathable film, sheet, textile, monofilament, multifilament, yarn, non-woven fabric, flat yarn, staple, crimped fiber, ribbed tape, split yarn, conjugate fiber, laminate, blow-bottle, sheet, stretched sheet, foam and net.

Abstract: A resin composition for sealing liquid crystal cells comprising as principal ingredients epoxy resin containing a polysulfide modified epoxy resin, hydrazide compounds and fillers.The said epoxy resin contains a polysulfide modified epoxy resin expressed by the general formula (1) in an amount of 20 to 100% by weight in the entire epoxy resin and the average molecular weight of the entire epoxy resin is between 300 and 3000. Formula (1) is defined as follows: ##STR1## where each of R.sup.1 and R.sup.3 represents at least one organic group selected from a group consisting of bisphenol structures, aliphatic oxyether structures and aliphatic thioether structures and R.sup.2 represents a polysulfide structure expressed by --(C.sub.2 H.sub.4 OCH.sub.2 OC.sub.2 H.sub.4 S.sub.m).sub.n --, wherein m represents the number of sulfur atoms contained in a polysulfide structure, which is 1 or 2, and n represents the average number of polysulfide structures contained in the above formula, which is between 1 and 50.

Abstract: There is provided with an optical recording medium comprising at least a dye-containing recording layer and a reflective layer laminated on a transparent substrate in this order which has a reflectance of 65% or higher, measured through the substrate, to a light beam having a selected wavelength (.lambda.1) of from 770 to 830 nm and has a reflectance of 15% or higher to a light beam having a selected wavelength (.lambda.2) of from 630 to 690 nm and which is recordable and reproducible with a laser beam having the wavelength of .lambda.1 and being reproducible with a laser beam having the wavelength of .lambda.2. In addition, the recording layer has a dye A having the absorption maximum at the wavelength shorter than 630 nm mixed with a dye B having the absorption maximum at the wavelength of from 630 to 900 nm. Alternatively, an interference layer is provided along with the recording and reflective layers.