Abstract: A pneumatic radial tire for passenger car comprises a circumferential belt layer in addition to a slant belt layer, in which specified PET, nylon, PEN or vinylon fiber cords or steel cords are used in the circumferential belt layer.

Abstract: A pneumatic radial tire for passenger cars comprises a circumferential belt layer in addition to a slant belt layer, in which specified PET, nylon, PEN or vinylon fiber cords or steel cords are used in the circumferential belt layer.

Abstract: In a semiconductor bare chip (57) on the front surface whereof is formed an integrated circuit, a magnetic loss film 55 is formed on the back surface of that semiconductor bare chip.

Abstract: A pneumatic tire formed by using a rubber composition comprising a vulcanization accelerator represented by the following general formula: wherein R1 represents a hydrogen atom, an alkyl group, or an aryl group, and R2 represents an alkyl group or an aryl group when R1 represents a hydrogen atom, and represents a hydrogen atom, an alkyl group, or an aryl group when R1 represents an alkyl group or an aryl group, in an amount of 0.2 to 8.0 parts by weight per 100 parts by weight of a rubber component. A pneumatic tire which maintains low rolling resistance and is improved to prevent resistance to ply-end separation throughout the entire term of tire use, a pneumatic tire which shows excellent controllability and durability in the last stage of tire use, and a pneumatic tire which prevents heat aging of belt layers and a decrease in the adhesion of steel cord with a rubber composition and shows excellent durability are provided.

Abstract: A pneumatic radial tire for passenger car comprises a circumferential belt layer in addition to a slant belt layer, in which specified PET, nylon, PEN or vinylon fiber cords or steel cords are used in the circumferential belt layer.

Abstract: The present invention is a method of forming a chipping-resistant composite paint film comprising applying an anti-chipping primer and an intermediate coating successively in the wet-on-wet method onto a electrodeposition coat baked on a substrate and baking the two wet coat in one step, wherein the anti-chipping primer comprises (a) an aqueous dispersion of an ethylene copolymer, (b) a water-based urethane resin, and (c-1) a water-miscible organic solvent having a boiling point of not lower than 80.degree. C. and of not higher than the baking temperature of the paint, or (c-2) a melamine resin.The present invention ensures improved appearance and chipping resistance of the paint film.

Abstract: A pneumatic radial tire for passenger car comprises a circumferential belt layer in addition to a slant belt layer, in which specified PET, nylon, PEN or vinylon fiber cords or steel cords are used in the circumferential belt layer.

Abstract: The present invention provides a method for producing N-acyl carbamate in high yield. The method of the present invention comprises the step of reacting an unsaturated acid halide with a carbamate in the presence of a hindered amine. Another method of the present invention comprises the step of reacting a N,N-diacyl carbamate with an active hydrogen compound.

Abstract: A rubber composition includes a rubber component and particulates of a crystalline syndiotactic-1,2-polybutadiene resin dispersed therein. The particulates have an average particle diameter of 1 to 500 .mu.m, and the melting point of the crystalline syndiotactic-1,2-polybutadiene resin is not less than 110.degree. C. The compounding ratio of the resin is 5 to 60 parts by weight relative to 100 parts by weight of the rubber component. The rubber composition is useful for tires, other rubber articles, etc. With respect to tires in particular, a pneumatic tire includes a rubber composition used for a tread, wherein the rubber composition includes a rubber component and particulates of crystalline syndiotactic-1,2-polybutadiene resin. The matrix portion of the tread rubber other than the above particulates is preferably a foamed rubber.

Abstract: The present invention provides a process for producing a variety of unsaturated carbamic acid derivatives from corresponding unsaturated carbamates by substitution reaction. The present invention provides a process for producing unsaturated carbamic acid derivatives, comprising reacting an unsaturated carbamate represented by ##STR1## wherein R represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, R.sup.1 represents a residue of an alcohol from which an OH group is removed,with an alcohol, a primary or secondary amine or an oxime at a temperature of 80.degree. to 150.degree. C. to substitute the --OR.sup.1 group in the formula (A).

Abstract: The present invention provides a pattern evaluating device including light irradiating means for irradiating the rays of light from a light source upon an object, an objective lens through which the light having penetrated through the object passes, an aperture member stopping the diameter of a light beam which has passed the objective lens, a photo receiving element receiving the light beam which has had the diameter stopped by the aperture member, and judging means for evaluating the pattern, following the information of the light received by the photo receiving element and which corresponds to the pattern, wherein the aperture member is capable of changing the numerical aperture, depending whether or not the sample is provided with a pericle.

Abstract: A data processing system for executing a parallel processing of programs by a plurality of computers, includes a plurality of parallel processing execution units for dividing a predetermined processing into a plurality of processings and a plurality of computers for executing a parallel processing of the parallel processing execution unit. In addition, a plurality of wait-until procedure units are provided for synchronization therewith between the plurality of computers in the case of executing a parallel processing. One computer assigns a value to a synchronous variable in the course of synchronous processing between the processors, to vary the value of the synchronous variable regularly, and another computer is adapted to suspend operations using a wait-until procedure until a value of a synchronous variable surpasses a predetermined value. Thus, the invention reduces an overhead time of the synchronous processing by effectively executing a parallel processing of programs.

Abstract: The present invention provides a manufacturing method for unsaturated carbamic acid esters by allowing an unsaturated amide compound to react with a metallic base in an inert solvent, followed by a reaction with a halogenated formic acid ester.The invention also provides a manufacturing method of unsaturated carbamic acid esters by allowing an urethane derivative to react with a metallic base in an inert solvent, followed by a reaction with an unsaturated acid halide.

Abstract: An aqueous dispersion coating composition comprising at least one kind of resin, wherein any one of said resin or resins has at least one functional group selected from an active hydrogen-containing group, a substituted acylamide group and a water dispersible or water-soluble group, and wherein the resin composition as a whole contains each of the above described kinds of functional groups.

Abstract: The present invention provides a manufacturing method for unsaturated carbamic acid esters by allowing an unsaturated amide compound to react with a metallic base in an inert solvent, followed by a reaction with a halogenated formic acid ester.The invention also provides a manufacturing method of unsaturated carbamic acid esters by allowing an urethane derivative to react with a metallic base in an inert solvent, followed by a reaction with an unsaturated acid halide.

Abstract: An automatic message announcement system for trains in the railroad station premises, including a train tracking circuit which tracks the location of approaching train, a trains information memory which stores information concerning each train, an edition circuit which combines the train information read out from said train information memory and a series of message patterns which include portions to be completed and which edits the message patterns to produce a series of short messages arranged sequentially according of their priority order to the content, an announcement message selection circuit which determines up to which short message among those arranged sequentially according to said priority order should be announced, in accordance with the location of the train at the time the announcement starts, and an automatic announcement system which includes a voice memory containing addressable voice segments for annoucing the message determined above.

Abstract: An automatic message announcement system for announcing the approach, arrival, and departure of vehicles such as trains at a train station. An addressable voice memory is provided for storing sequences of voice segments which are read out upon receipt of announcement command input signals to form messages for announcing that a vehicle is approaching or has arrived or is departing, with specific information such as the vehicle's destination being included in the announcement by inserting the appropriate voice segments at the proper points in the sequence. The messages are composed in such a manner that the sequences of voice segments can be altered to form shorter, but still intelligible, messages if vehicles traffic is so heavy that one message is due for announcement before the previous announcement is completed.