Abstract: The present invention relates to a method for preparing 4-hydroxy-1,2,2,6,6-pentamethylpiperidine comprising the following steps:(i) reacting 4-hydroxy-2,2,6,6-tetramethylpiperidine with at least one compound selected from the group consisting of formaldehyde, paraformaldehyde and trioxane, optionally in the presence of formic acid;(ii) neutralizing the reaction product of step (i) by adding a base thereto; and(iii) after the neutralization, separating the crude product from the aqueous layer and crystallizing and filtering the crude product to thereby obtain crystals of 4-hydroxy-1,2,2,6,6-pentamethylpiperidine with a water content of 3% by weight or less.

Abstract: A resin composition for sealing liquid crystal cells which contains as essential components a rubber-modified unsaturated compound obtained by grafting a monomer having at least one polymerizable ethylenically unsaturated bond in a molecule with at least one rubber selected from acrylic rubber, silicone rubber, urethane rubber and conjugated diene rubber, and a coupling agent, a filler and a photopolymerization initiator. The rubber contained in the rubber modified unsaturated compound has a particle diameter of 0.2-5 .mu.m and a number average molecular weight of 1000-100,000, and the rubber content in the compound is 0.5-45% by weight based on the rubber modified unsaturated compound.

Abstract: A freeze-dried monoclonal antibody preparation is prepared by adding to a solution of the monoclonal antibody gelatin or carboxylic acid or its salt, to prevent denaturation of the monoclonal antibodies during freeze-drying. Freeze-dried monoclonal antibody preparations having stablized antigen-binding activity result and may be used as an adminiculum for immunoauxotherapy for prophylaxis and treatment of bacterial infectious diseases and viral infectious diseases.

Abstract: Disclosed is an epoxy resin composition which is excellent in thermal stability without being cured in a cylinder of an injection molding machine and is extremely suppressed in the formation of flux on molding.This epoxy resin composition has an important feature residing in the use of a specific silica of the following characteristics as an inorganic filler to be incorporated thereinto whereby excellent technical effects can be achieved such as the composition being injection-moldable and the formation of flux on molding being suppressed extremely:(a) an average particle diameter of not more than 30 .mu.m,(b) 5-30% by weight of a molten or crystalline silica powder having an average particle diameter of not more than 7 .mu.m and a specific surface area of at least 5 m.sup.2 /g in the total silica content,(c) 15-45% by weight of silica having an average particle diameter of not more than 5 .mu.m in the total silica content,(d) the maximum particle diameter of the total silica content of not more than 150 .mu.

Abstract: Disclosed are: (1) an optical resin composition comprising Component A: a thiourethane prepolymer compound prepared by reacting a polythiol compound having at least 3 functional groups and an intramolecular sulfide bond, with a polyisocyanate compound in a molar ratio of --SH to --NCO ranging from 3.0 to 7.0 Component B: at least one (meth)acrylate compound having at least 2 functional groups; and Component C: a compound radically polymerizable with Components A and B, in 10 to 50% by weight, 35 to 70% by weight, and 5 to 30% by weight, respectively; (2) a preparation process for an optical resin by photopolymerization; (3) an optical resin; and (4) a prepolymer suitable for Component A. The composition is a novel, rapidly polymerizable composition for an optical resin. Furthermore, a resin prepared by curing the composition not only has a high refractive index and a high Abbe number, but also is excellent in transparency and optical homogeneity.

Abstract: An apparatus for transmitting power from a motor to a movable member comprises a drum connected to the movable member, a cam member rotated around a center shaft by the motor, a clutch member displaced from a standby position to a full engagement position through an initial engagement position when the cam member is rotated, a return spring for urging the clutch member from the full engagement position toward the standby position, and a brake member for applying a predetermined frictional resistance to the clutch member. The clutch member moves the brake member from a braking position to a non-braking position when the clutch member is moved from the initial engagement position toward the full engagement position. The cam member has a cam face which moves the clutch member from the standby position to the full engagement position and a holding face which disables the clutch member from returning from the full engagement position to the standby position.

Abstract: A steering wheel for motor vehicles which is composed of a steering wheel base covered with a skin material of: (I) 10-50 parts by weight of a polyethylene resin (A); and (II) 90-50 parts by weight of a block copolymer (B) including a polymer block (a) of styrene or a derivative thereof and an isoprene polymer block or an isoprene-butadiene copolymer block (b), the polymer or copolymer block containing 40% or higher of isoprene units bonded at 3,4- position relative to the total isoprene units and 97% or more of the double bonds having been hydrogenated, (the total amount of the components (A) and (B) is 100 parts by weight). The skin material for the steering wheel is a soft, injection-moldable thermoplastic olefin elastomer composition having a low specific gravity and good wear resistance, which is capable of recycling and gives excellent feel of touch.

Abstract: An automotive door latch device comprises a latch body having a horizontal passage into which a striker enters, a latch rotatably mounted to the latch body by a latch shaft, a ratchet rotatably mounted to the latch body by a ratchet shaft, a lock lever switched between an unlocked position and a locked position, a block lever rotatably mounted to the latch body by a block shaft and engaging with the lock lever when the latch is in an unlatched position to prevent the lock lever from moving from the unlocked position to the locked position. The latch and the ratchet is substantially arranged along a vertical direction. A straight line connecting the ratchet shaft and the block shaft is substantially in parallel to the horizontal passage of the latch body. The block lever is connected to the ratchet lever by a connection pin.

Abstract: An electrodeposited copper foil for use in the manufacture of a printed wiring board in which the original profile of the matte surface has been completely removed, preferably by buffing, leaving a surface having linear streaks and a roughness 1.5 .mu.m or less. The new surface is then given a nodule forming treatment which produces a surface roughness of 1.5 to 2.0 .mu.m, which may be followed by a corrosion resisting treatment. This invention further provides a method of manufacturing such an electrodeposited copper foil. Such copper foils are especially useful in making fine circuit patterns.

Abstract: A relay assembly for a vehicle sliding door comprises an outer opening lever mounted on a base plate for releasing a latch unit by operation of an outside open handle, a locking lever mounted on the base plate and having an unlocked position and a locked position, an inner opening lever mounted on the base plate for releasing the latch unit by operation of an inside open handle, a child-proof lever mounted on the base plate and having a non-proof position and a proof position, and a ratchet lever mounted on the base plate and coupled to the latch unit through a rod or wire. The locking lever and child-proof lever are pivotally mounted on the base plate by a first shaft, and are provided on opposite sides of the base plate, respectively. The inner opening lever and outer opening lever are pivotally mounted on the base plate by a second shaft parallel to the first shaft, and are provided on opposite sides of the base plate, respectively.

Abstract: A resist scattered on and attached to unwanted portions is stably detected. A target inspection region including the unwanted portions to which the scattered resist should not be attached is illuminated with white light to obtain a color image, and a region having the same hue and chroma as a resist is detected. The target inspection region may be illuminated with light containing a first wavelength light exhibiting high reflectance for the unwanted portions and high absorbance for the resist and a second wavelength light exhibiting high reflectance for the unwanted portions and high transmittance for the resist to detect a color image obtained with the second wavelength light from the images of the target inspection region which are obtained by illumination with the illumination light. The resist attached to the unwanted portions may be detected on the basis of the contrast of the image obtained upon illumination with only the first wavelength light.

Abstract: A transparent, rubber-modified styrene resin comprises 70 to 96 parts by weight of a copolymer formed of 20 to 70 wt. % of styrene monomer units and 30 to 80 wt. % of alkyl (meth)acrylate monomer units and 4 to 30 parts by weight of a rubbery polymer. The rubbery polymer is dispersed in the copolymer as particles having an average particle size of 0.1 to 2.0 .mu.m. At least 70 wt. % of the rubbery polymer is a styrene-butadiene block copolymer which is formed of 5 to 50 wt. % of styrene units and 50 to 95 wt. % of butadiene units, has a viscosity in a range of 3 to 60 cps when measured as a 5 wt. % styrene solution at 25.degree. C. and possesses a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) in a range of 1.0 to 1.8. The copolymer and the rubbery polymer have substantially the same refractive index.

Abstract: The present invention provides a syndiotactic polypropylene resin composition of excellent moldability comprising 100 parts by weight of a syndiotactic polypropylene and 0.001-10 parts by weight of a diamine/monocarboxylic acid condensate and/or a diamine/monocarboxylic acid/polybasic acid polycondensate. The composition has excellent moldability, particularly, excellent releasability from mold in injection molding; excellent transparency; and good balanced mechanical properties.

Abstract: A preparation process of isoimide comprising reacting a compound having one or more carboxyl group and one or more amide bond in the same molecule in the presence of a haloiminium salt and basic substance, and a preparation process of isoimide comprising reacting a compound having one or more carboxyl group with a compound having one or more amide bond in the presence of a haloiminium salt and basic substance are disclosed.

Abstract: The present invention provides for an antifungal, antibacterial and antiviral filter comprising in laminations a dust collecting filter and a filter impregnated with a tea extract. The filter having nonwoven fabric is impregnated with a polyphenol tea extract, which can be easily produced commercially and is capable of maintaining a high virus trapping performance, inactivating the trapped viruses and preventing them from being rescattered.

Abstract: A multi-layer blow molded article of a polypropylene comprising at least two layers, wherein at least one layer of the inner layer or layers comprises a resin composition containing 100-50 parts by weight of a syndiotactic polypropylene with an Mw/Mn of 3.0 or more and 0-50 parts by weight of an ethylene-.alpha.-olefin copolymer elastomer, and the outermost layer comprises a syndiotactic polypropylene with an Mw/Mn of less than 3.0, an isotactic polypropylene with an Mw/Mn of 6.0 or less, a resin composition containing 99-50 parts by weight of either of said polypropylenes and 1-50 parts by weight of an ethylene-.alpha.-olefin copolymer elastomer, or a polypropylene formed by heat degradation of a syndiotactic or isotactic polypropylene and having an Mw/Mn of 3.0 or more.

Abstract: Disclosed is a liquid crystal device comprising a liquid crystal cell filled with a liquid crystal material capable of exhibiting a smectic phase, said cell including upper and lower substrates each having in order an electrode and an orientation film in contact with the liquid crystal material, a cross angle e formed by the orientation treatment directions of the orientation films is 180.degree.-.delta. or 360.degree.-.delta. (0.degree.<.delta..ltoreq.90.degree.). Also disclosed is a process for preparing the above-mentioned liquid crystal device comprising treating the orientation films and preparing the liquid crystal cell so as to have the orientation treatment directions of the orientation films form the cross angle .THETA. within the above range in the cell.

Abstract: According to the present invention, the oxidation of the surface of solder particles is inhibited and the generation of solder balls in the reflow soldering process is inhibited. More specifically, the present invention protects the surface of the solder particles from oxidation during all steps, including the storage of a solder powder, formation of a paste from the solder powder, printing, transferring to a reflow oven and reflow soldering, to minimize the oxidation of the solder particles at these steps so that the generation of solder balls is minimized. In addition, the present invention provides a method for making the solder powder and a solder paste using the solder powder. The objective of the present invention is achieved by the solder powder, the particles of which have on the surface thereof an organometallic compound composed of adipic acid and a metal of the solder alloy. This solder powder is produced by reacting particles of the solder alloy powder with vaporized adipic acid.

Abstract: A powered sliding device for sliding a vehicle sliding door along a guide rail comprises a base plate fixed to the vehicle body, a wire drum rotatably mounted on the base plate and rotated by a motor, a wire cable provided between the wire drum and the sliding door, a first holder provided in the vicinity of one end of the guide rail and having a first pulley making contact with the wire cable, a second holder provided in the vicinity of the other end of the guide rail and having a second pulley making contact with the wire cable, a tension roller provided on the base plate for making contact with the wire cable by resiliency of a spring, a flexible cable sheath covering the outer periphery of the wire cable between the first holder and the base plate and having one end to be connected to the first holder, a supporting member connected to the other end of the cable sheath. The supporting member is slidably mounted to the base plate in parallel with a running direction of the wire cable.

Abstract: The present invention provides an ethylene copolymer comprising constituent units (a) derived from ethylene and constituent units (b) derived from an .alpha.-olefin having 3 to 20 carbon atoms, the ethylene copolymer being characterized in that(A) the ethylene copolymer has a density (d) of 0.86 to 0.95 g/cm.sup.3 ;(B) the ethylene copolymer has a MFR of 0.001 to 50 g/10 min as measured at a temperature of 190.degree. C. and a load of 2.16 kg;(C) the melt tension (MT) and MFR of the ethylene copolymer satisfy the relationlog MT>-0.66 log MFR+0.6; and(D) the temperature (T) at which the exothermic curve of the ethylene copolymer measured by a differential scanning calorimeter (DSC) shows the highest peak and the density (d) satisfy the relationT<400 d-250.