Abstract: A process for particulate-resin production from an aqueous solution containing resin particles by recovering the particulate resin from the solution. In recovering the particulate resin from the aqueous solution, a lubricant is added in an amount of 0.05-5 parts by weight per 100 parts by weight of the resin ingredient contained in the particulate resin and a dispersant is added in an amount 0.1 to 1 time by weight the amount of the lubricant. Thus, a particulate resin excellent in transparency and blocking resistance can be obtained. In particular, a particulate isobutyrene block copolymer resin can be stably produced.

Abstract: To provide an inexpensive fuel cell membrane electrode assembly that is suitable for a direct methanol fuel cell, and for which the adhesion between an electrode and a fuel cell electrolyte membrane formed from a non-fluorine polymer material is improved, a polymer electrolyte added to the electrode can cope sufficiently with a high concentration of methanol, the advantages of the electrolyte membrane can be sufficiently exhibited, peeling apart of the electrode and the membrane does not occur while running as a fuel cell, and the productivity is high. An electrolyte membrane having a non-fluorine polymer as a substrate, and among electrodes layered on opposite sides of the electrolyte membrane, the electrode on at least one side being formed from a catalyst, an electrolyte, and a non-fluorine thermoplastic polymer.

Abstract: A U-shaped insert for a weather strip includes a plurality of segments, which are spaced apart by a predetermined interval. Adjacent pairs of the segments are attached together by a pair of coupling members. The coupling members of each pair of the segments are substantially parallel to one another. Acutely angled corners are formed by each coupling member and the segments to which it is attached. The acutely angled corners include notches, which are cylindrical and extend into the associated segment. This permits deformation of the insert, while the insert resists tensile deformation.

Abstract: The present invention relates to a trim or a seal member such as an opening trim weather strip. The trim or a trim body in the seal member has a holding lip portion and modified holding lip portions. And the holding lip portion and modified holding lip portions have head portions. The head portions are made to bulge out toward a bottom wall portion at the tip ends of modified holding lip portions of the trim or the trim body of trim portion. The modified holding lip portions are formed so that projecting lengths of the head portions from the end surfaces of tip end portions of the modified holding lip portions, and the thicknesses of the head portions increase in inverse proportion to lip projecting lengths of the modified holding lip portions from an inner surface of an interior side wall portion. Alternatively, a slope inclined with respect to an extension plane of an opening-portion-side surface of a base end portion is formed at tip ends of the modified holding lip portions.

Abstract: The present invention has for its object to produce an isobutylene polymer having excellent performance characteristics by suppressing side reactions at the polymer growth termini during polymerization. The process of the present invention is to carry out a cationic polymerization of a monomer component containing isobutylene in the presence of a polymerization initiator, a catalyst, an ether compound, and an electron donor. Moreover, the process is to carry out a cationic polymerization of a monomer component containing isobutylene in the presence of a polymerization initiator, a catalyst, an ether compound, and an electron donor, and add a compound having the carbon-carbon unsaturated bond for introducing the carbon-carbon unsaturated bond into the polymer terminus.

Abstract: The present invention has for its object to produce an isobutylene polymer having excellent performance characteristics by suppressing side reactions at the polymer growth termini during polymerization.

Abstract: An insert has a plurality of pieces and a pair of coupling portions. Each of an interior side coupling portion and an exterior side coupling portion which couple adjacent pieces of the insert is formed to be extended obliquely to the piece in a flat state and to be gradually expanded from one of ends to the other. A notch is provided on an acute portion in a connecting part of the coupling portions in the piece so as to be formed continuously on the sides of the coupling portions and to have an inner peripheral surface thereof to constitute a part of a substantially cylindrical surface.

Abstract: The present invention relates to a trim or a seal member such as an opening trim weather strip. The trim or a trim body in the seal member has a holding lip portion and modified holding lip portions. And the holding lip portion and modified holding lip portions have head portions. The head portions are made to bulge out toward a bottom wall portion at the tip ends of modified holding lip portions of the trim or the trim body of trim portion. The modified holding lip portions are formed so that projecting lengths of the head portions from the end surfaces of tip end portions of the modified holding lip portions, and the thicknesses of the head portions increase in inverse proportion to lip projecting lengths of the modified holding lip portions from an inner surface of an interior side wall portion. Alternatively, a slope inclined with respect to an extension plane of an opening-portion-side surface of a base end portion is formed at tip ends of the modified holding lip portions.

Abstract: A method for making an article including an elongated member and a tape member bonded to the elongated member. An elongated member is extruded from at least one rubber in a continuous manner, then continuously vulcanized. A tape member including at least one resin layer with a melting temperature that is lower than a temperature of the elongated member immediately after vulcanization is separately supplied and preheated to about the softening temperature of the resin layer. The preheated tape member is then continuously contacted with and pressed against the vulcanized elongated member to thereby at least temporarily fix the elongated member to the tape member at opposing surfaces. Contact between the elongated member and the tape member is maintained for a sufficient period of time to cause heat remaining in the elongated member from the vulcanizing step to melt at least the opposing surface of the tape member.

Abstract: A die is formed with an opening having substantially the same shape as a fundamental cross-sectional shape of an extrusion member. A first core is formed with a projecting portion projecting forward beyond a front surface of the die. A movable die for changing the external shape of a sealing portion is disposed on the front surface of the die. The movable die is allowed to move between a position where a curved surface formed at the forward end thereof is kept away from the projecting portion of the first core and another position where the curved surface comes close to the projecting portion. Further, first and second movable cores are inserted in the opening of the die, these movable cores being moved forward and backward along the direction in which EPDM is extruded.

Abstract: In a method of decorating a rubber extruded product, a decoration film made of a thermoplastic resin is laminated by use of thermal fusion onto a decorating part of a vulcanized rubber extruded product. The decoration film is extruded at a predetermined thickness and width independently of the vulcanized rubber extruded product. Thereafter, the decoration film is pressure-bonded and thermally fused to the decorating part of the vulcanized rubber extruded product by pressure rollers before curing.

Abstract: An apparatus for extruding a weather strip having first and second function portions and a connecting portion interconnecting these function portions is disclosed. The connecting portion varies in width according to a longitudinal position along the weather strip. Included in the apparatus is a head, a main die plate which is mated with a front side of the head and which has a first opening for extruding rubber therethrough to form a first function portion, such as a mounting portion, and part of the connecting portion, a fixed die plate connected to the main die plate, and a movable die disposed in the fixed die plate. The movable die has a second opening for extruding rubber therethrough to form a second function portion, such as a sealing portion, and part of the connecting portion and is slidably received in a reception portion in the fixed die plate. A discharge rate of the rubber for forming the connecting portion is adjustable in accordance with the sliding movement of the movable die.

Abstract: A method for forming an extruded weather strip having a trim portion and a lip having a thickened end portion.

Abstract: In a process for the microsuspension of emulsion polymerization of vinyl chloride using a polymerization apparatus equipped with an agitator the improvement where the ratio (H/D) of the effective height (H) of the apparatus to the effective inner diameter (D) of the apparatus is 4 or more.

Abstract: The present invention is directed to a door weather strip in which the corner portions thereof are integrally formed with straight portions thereof. In order to obtain a predetermined sealing interference, the cross sectional shape of the corner portions of hollow sealing portion and the lip seal of the weather strip is arranged to be longer than that in the straight portion. Alternatively, the sealing portion is raised as to have a predetermined shape when the corners are formed. Said formed shapes are solidified by vulcanization after the weather strip has been plastically deformed before the vulcanization.

Abstract: In a process for the microsuspension or emulsion polymerization of vinyl chloride using a polymerization apparatus equipped with an agitator the improvement where the ratio (H/D) of the effective height (H) of the apparatus to the effective inner diameter (D) of the apparatus is 4 or more.

Abstract: A weather strip including a trim part U-shaped in section, a hollow seal part joined to the trim part, and a core member made up of a plurality of U-shaped core pieces embeded in the trim part to the extent that the weather strip is not impaired in flexibility. Wires are embeded in the weather strip in such a manner that they are located near the joint and extend in the weather strip longitudinally. Hence, the weather strip can be engaged with a flange of a vehicle that varies three-dimensionally in posture and in direction.

Abstract: The present invention is directed to a door weather strip in which the corner portions thereof are integrally formed with straight portions thereof. In order to obtain a predetermined sealing interference, the cross sectional shape of the corner portions of hollow sealing portion and the lip seal of the weather strip is arranged to be longer than that in the straight portion. Alternatively, the sealing portion is raised as to have a predetermined shape when the corners are formed. Said formed shapes are solidified by vulcanization after the weather strip has been plastic deformed before the vulcanization.

Abstract: A weather strip to be attached to a flange formed along a door opening or a door frame of a motor vehicle, having a trim portion, a sealing portion formed on an outer surface of the trim portion, and two flange retaining lips projecting from each of opposed inner surfaces of the trim portion inwardly for holding the flange. A notch is defined longitudinally in a root portion of one flange retaining lip projecting from adjacent and open end of one of the opposed inner surfaces, which is on the opposite side of the trim portion from the sealing portion. When the weather strip is attached to a thicker flange, the one flange retaining lip is ripped off along the notch.

Abstract: An opening trim which is mounted to a body flange of a door mounting opening portion of an automobile, and provided with a U-like cross-section and grasping lips on the inside of the U-like cross-section. The opening trim comprises a portion intended to grasp a thick portion of the body flange and a usual portion continuing to the portion intended to grasp the thick portion, and both portions are molded integrally by means of extrusion molding. The inclination angle of the grasping lips at least in one side of the portion intended to grasp the thick portion with respect to the flange inserting surface is made smaller than that in the usual portion. Thereby the flange pushing resisting force in the portion intended to grasp the thick portion is about equal with that in the usual portion.