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1. 发明专利

JPH11151768A LAMINATED TUBE 失效
公开(公告)号：JPH11151768A
公开(公告)日：1999-06-08
申请号：JP33634997
申请日：1997-11-19
申请人： MITSUBISHI CHEM MKV CO , MARUGO RUBBER IND CO LTD
发明人： OSHIMA MASABUMI , YASUMATSU HIFUMI , OGA SHIGETO , KASAMOTO TADASHI , MIYAKE TSUTOMU , FUJIWARA YASUAKI
IPC分类号： F16L11/04 , B29C49/22 , B29L9/00 , B29L23/00 , B32B1/08 , B32B27/30 , B32B27/34
摘要： PROBLEM TO BE SOLVED: To impart fuel impermeability, flexibility, fire retardancy, cold resistance, oil resistance and weatherability by laminating at least two layers of an inner layer comprising a polyamide resin or fluoroplastic and an outer layer comprising a soft thermoplastic resin having specific rigidity to thermally fuse the respective laminated layers. SOLUTION: An outer layer comprises a compounded compsn. consisting of 100 pts.wt. PVC, 85 pts.wt. plasticizer (polyester type), 40 pts.wt. plasticizer (phthalate type), 3 pts.wt. Ba-Zn composite stabilizer, 80 pts.wt. calcium carbonate, 190 pts.wt. partially crosslinked NBR, 0.3 pts.wt. org. peroxide and 10 pts.wt. fire retardant and the hardness of this compsn. after 10 sec needle penetration by JIS: K6723 is 60. An inner layer comprises polyamide 11. An adhesive intermediate layer consists of three layers of a compounded compsn. consisting of 100 pts.wt. chlorinated polyethylene, 20 pts.wt. plasticizer, 3 pts.wt. Ba-Zn composite stabilizer and 20 pts.wt. calcium carbonate. This laminated tube is formed by a blow molding method.

2. 发明专利

JP2000329266A LAMINATION FUEL HOSE 失效
公开(公告)号：JP2000329266A
公开(公告)日：2000-11-30
申请号：JP13958899
申请日：1999-05-20
申请人： MARUGO RUBBER IND CO LTD
发明人： YASUMATSU HIFUMI , OGA SHIGETO , KASAMOTO TADASHI , MIYAKE TSUTOMU
IPC分类号： B32B1/08 , B32B27/08 , F16L11/11
摘要： PROBLEM TO BE SOLVED: To provide a light and low-cost lamination fuel hose coping with a sever transpiration regulation. SOLUTION: A fuel hose consists of inner and outer layer parts 14 and 16. The inner layer part 14 is formed in a thickness of 0.3 mm or more and of a single layer of thermoplastic fuel low permeable resin or a double layer covering the fuel low permeable resin with thermoplastic resin. The outer layer part 16 is formed of a thermoplastic elastomer and the inner and outer layers 14 and 16 are laminated together with adhesion of 0.6 kgf/cm or less in an ordinary state.

3. 发明专利

JP2000289121A MANUFACTURE OF BENT HOSE WITH RUBBER-RESIN LAMINATION LAYER 失效
公开(公告)号：JP2000289121A
公开(公告)日：2000-10-17
申请号：JP10086099
申请日：1999-04-08
申请人： MARUGO RUBBER IND CO LTD
发明人： YASUMATSU HIFUMI , KASAMOTO TADASHI , OGA SHIGETO
IPC分类号： B32B1/08 , B29D23/00
摘要： PROBLEM TO BE SOLVED: To prevent crease and swells due to a significant difference in the rigidity between a resin and an unvulcanized rubber from being generated by regularly vulcanizing a laminate of rubber and resin after previously vulcanizing and bending the laminate. SOLUTION: First a core is run and an inner layer rubber is extruded by a first extruder A to be laminated on the core N and an intermediate resin and an outer layer rubber are extruded by a second extruder B and a third extruder C respectively so that the intermediate resin and the outer layer rubber are sequentially laminated on the outer periphery of the core N. The laminated hose H is cut to the specified length and vulcanized by vulcanization with pressurized vapor, high frequency or the like. When the bent hose H is manufactured, the vulcanization process is suspended halfway through a vulcanization reaction as a preliminary vulcanizing step and the core N is drawn out of the hose H, which is, in turn, bent. That is, the half-vulcanized hose H is inserted into a vulcanizing guide M with a desired bend by the preliminary vulcanization process and the hose H is regularly vulcanized in such a state that the hose H is inserted into the guide M.

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