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公开(公告)号：US3658947A
公开(公告)日：1972-04-25
申请号：US3658947D
申请日：1968-12-16
Applicant: TORAY INDUSTRIES
Inventor： ITO KOJI , ARAI SADAO , TSUCHIYAMA NOBUO
CPC classification number: C08L25/00 , C08F279/04 , C08L21/00 , C08L27/04 , C08L33/06 , C08L2205/22 , C08L7/00 , C08L9/00 , C08L33/08 , C08L33/12 , C08L57/00 , C08F2/22 , C08L2666/04
Abstract: A COMPOSITE TWO PHASE RUBBER-MODIFIED THERMOPLASTIC RESIN IS DESCRIBED IN WHICH A RUBBER COMPONENT HAS BEEN DISPERSED IN A THERMOPLASTIC RESIN MATRIX IN A FINELY DIVIDED FORM, WHEREIN THE RUBBER OARTICLES HAVE THE GEOMETRIC SHAPE OF OBLATE SPHEROID IN WHICH THE RATIO OF THE LENGTH OF THE MINOR AXIS TO THAT OF THE MAJOR AXIS IS AT MOST 0.5, WHICH RESIN DOES NOT EXHIBIT THE STRESS WHITENING PHENOMENON. ALSO DESCRIBED IS A METHOD OF PREPARING SUCH A RESIN FROM A SIMILAR RESIN WHEREIN THE RUBBER PARTICLES ARE OF SPHEROIDAL SHAPE WHICH INVOLVES ROLLING OR STRETCHING THE SAME WITHIN THE TEMPERATURE RANGE FROM ROOM TEMPERATURE TO THE SOFTENING TEMPOERATURE OF THE RESIN. ALSO DISCLOSED IS A METHOD FOR IMPROVING THE DIMENSIONAL STABILITY OF THE MODIFIED RESIN HAVING RUBBER PARTICLES IN THE SHAPE OF AN OBLATE SPHEROID BY HEAT TREATING UNDER TENSION OR WITH PERMISSIVE LIMITED SHRINKAGE AT A TEMPERATURE IN THE RANGE OF FROM AT LEAST 5%C. ABOVE THE HEAT DISTORTION TEMPERATURE TO A TEMPERATURE BELOW THE SOFTENING TEMPERATURE.
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公开(公告)号：DE1814521A1
公开(公告)日：1970-08-13
申请号：DE1814521
申请日：1968-12-13
Applicant: TORAY INDUSTRIES
Inventor： ITO KOJI , ARAI SADAO , TSUCHIYAMA NOBUO
Abstract: 1,193,569. Rubber-reinforced resins. TOYO RAYON CO. Ltd. 12 Dec., 1968 [14 Dec., 1967; 17 Feb., 1968; 5 Aug., 1968]. No. 59104/ 68. Headings C3G and C3P. A rubber-modified resin comprises a thermoplastic resin having dispersed therein a finely divided rubber in an amount of 1 to 40 wt. per cent of the resin, the particles of the rubber component having the shape of an oblate spheroid of a ratio of minor axis to major axis of at most 0À5 and the average length of the minor axis being 0À05-10Á and the average length of the major axis being 0À1 to 60Á. The product can be obtained by stretching a sheet of a composition of resin containing spheres of rubber or stretching a graft polymer of resin forming monomers on a rubber backbone. The invention is particularly applicable to ABS polymers. The rubber-modified resin can be incorporated in polyvinyl chloride.
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公开(公告)号：JPS63183823A
公开(公告)日：1988-07-29
申请号：JP1641087
申请日：1987-01-27
Applicant: TORAY INDUSTRIES
Inventor： NISHIMURA KAZUHIKO , ARAI SADAO
Abstract: PURPOSE:To prevent plastic from leaking onto a wire netting and at the same time contrive to reduce the deformation of the wire netting by a method wherein metal wires consisting the wire netting are flattened at the part near a frame. CONSTITUTION:The end part of a wire netting 2 is pressingly held by lands 10 and 10', which are respectively provided on an A-mold 6 and on a B-mold 7 under the state that the wire netting 2 is housed in a cavity 11, which is provided at the central part of the molds. The interval between the lands 10 and 10' corresponds to the thickness B of the compressed wire netting, under the state wherein neither clogging of the netting nor extreme lowering of the strength at the compressed part of the netting will occur. In addition, at the cavity 11, the wire netting and the mold 5 do not touch with each other. After the mold 5 is assembled as mentioned above, synthetic resin is forced from a runner 8 in the mold 5 so as to mold the frame 3 of an oil filter 1. After cooling, the molded frame is taken out by disassembling the mold. Since the wire netting is pressingly pinched by the lands, leakage of the molten synthetic resin from the cavity 9, which forms the frame, of the mold through the mesh of the wire netting does not occur into the cavity 11, in which the wire netting is inserted, further development of flash or partial clogging of the wire netting does not occur.
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