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51. 发明专利

JPS52152898A PRODUCTION OF HYDROPEROXIDES 失效
公开(公告)号：JPS52152898A
公开(公告)日：1977-12-19
申请号：JP6931576
申请日：1976-06-15
申请人： UBE INDUSTRIES
发明人： MIKAMI ICHIROU , USHIMI KATSUHIKO , UCHIDA YOSHIHIKO , MORIMOTO NOBUHIKO , TAZAKI YASUTAKA , OKAHARA ETSUO , FUJIMOTO MIKIO
IPC分类号： C07C409/14 , C01B15/022 , C07C67/00 , C07C407/00 , C07C409/34
摘要： PURPOSE:To obtain hydroperoxides in a short reaction time with high yield by liquid phase oxidation of cycloalkylbenzenes with gas-contg. molecular oxygen in the presence of bromide catalyst.

52. 发明专利

JP2002172656A IN-MOLD COATING MOLD AND METHOD 失效
公开(公告)号：JP2002172656A
公开(公告)日：2002-06-18
申请号：JP2000372445
申请日：2000-12-07
申请人： UBE INDUSTRIES
发明人： OKAHARA ETSUO
IPC分类号： B29C45/26 , B29C45/16 , B29C45/56 , B29L9/00
摘要： PROBLEM TO BE SOLVED: To provide an in-mold coating mold and method for injecting a paint in the gap, which is formed between the surface of a mold cavity and the surface of a molded article by the fine mold opening operation of a mold, under low pressure and efficiently manufacturing the molded article wherein the paint is closely bonded to the surface of a thermoplastic resin molded article using a flat type mold. SOLUTION: In the in-mold coating mold constituted so that molds are opened at a predetermined interval after the thermoplastic resin molded article is molded in the cavity formed by the molds to inject a predetermined coating agent in the gap between the surface of the obtained thermoplastic resin molded article and the cavity surface of the molds by a coating agent injection machine and the molds are again clamped after the injection of the coating agent is completed to cure the coating agent in the molds to manufacture the molded article wherein the coating agent is closely bonded to and integrated with the surface of the thermoplastic resin molded article, a sub-cavity constituting a part of the back surface of a main cavity and a projection, which is projected into the sub-cavity on the inner side of the outer peripheral part on the coating surface side of the sub-cavity and has a large leading end having an inverted trapezoidal shape, are provided to the outer entire periphery of the main cavity and a high temperature part is provided to the projection having the inverted trapezoidal shape.

53. 发明专利

JP2002172654A MOLD FOR IN-MOLD COATING MOLDING 失效
公开(公告)号：JP2002172654A
公开(公告)日：2002-06-18
申请号：JP2000370025
申请日：2000-12-05
申请人： UBE INDUSTRIES
发明人： ARAI TOSHIO , OKAHARA ETSUO , KOBAYASHI KAZUAKI
IPC分类号： B29C45/26 , B29C45/16
摘要： PROBLEM TO BE SOLVED: To form a coating film, of which the thickness is less than the size of the gap generated between a mold cavity and a resin molded article by the shrinkage in the thickness direction of the resin molded article, in a mold in in-mold coating molding. SOLUTION: In the mold for in-mold coating molding equipped with a fixed mold and a movable mold, both of which have fitting parts having a bite-off structure and form a molded cavity of which the periphery is surrounded by the fitting parts, and a paint injection machine, a freely detachable mold thickness adjusting plate (parting surface plate 1) is arranged between the fixed mold and the movable mold and, by fitting the mold thickness adjusting plate in the gap between the fixed mold and movable mold and removing the same from the gap, the size of the gap generated between the mold cavity and the resin molded article is adjusted.

54. 发明专利

JP2002127198A DIE FOR IN-MOLD COATING, AND IN-MOLD COATING METHOD 失效
公开(公告)号：JP2002127198A
公开(公告)日：2002-05-08
申请号：JP2000328117
申请日：2000-10-27
申请人： UBE INDUSTRIES
发明人： OKAHARA ETSUO
IPC分类号： B05D7/22 , B29C45/16 , B29C45/26 , B29C45/56
摘要： PROBLEM TO BE SOLVED: To provide a die for in-mold coating and an in-mold coating method by which a molded article, wherein a paint is closely attached on the surface, the end surface and the rear surface in the vicinity of the end surface of a thermoplastic resin molded article, can be efficiently manufactured by a minute die-opening motion of the die. SOLUTION: After molding the thermoplastic resin molded article in the die, the die is opened by a specified gap, and a specified coating agent is injected in the space between the surface of the obtained thermoplastic resin molded article and the cavity surface of the die by a coating agent injecting machine. After the injection of the coating agent is completed, the die is clamped again, and the coating agent is hardened in the die. Thus, the molded article, wherein the coating agent is closely attached and integrated on the surface of the thermoplastic resin molded article, is manufactured by this die for in-mold coating. In such a die for in-mold coating, a movable core, an inverted trapezoidal shape protuberance, and a gate are provided. In this case, the movable core communicates/shuts off a main cavity and a subsidiary cavity which extends to the total outer periphery of the main cavity, and at the same time, constitutes one section of the main cavity. The inverted trapezoidal shape protuberance protrudes in the subsidiary cavity on the coating surface side, and of which the distal end is larger. The gate can control a valve which feeds the molten resin in the subsidiary cavity.

55. 发明专利

JP2001334554A MOLD FOR PARTIAL LAMINATION MOLDING AND METHOD FOR LAMINATION MOLDING 失效
公开(公告)号：JP2001334554A
公开(公告)日：2001-12-04
申请号：JP2000157625
申请日：2000-05-29
申请人： UBE INDUSTRIES
发明人： OKAHARA ETSUO
IPC分类号： B29C45/26 , B29C45/14 , B29C45/80
摘要： PROBLEM TO BE SOLVED: To provide a mold for partial lamination molding and a method for lamination molding for clarifying a boundary line of a laminated part and eliminating a step by preventing both a partial damage of a skin material and an overall damage of the skin material at a gate when the skin material is partly laminated on a core material resin by using a normal injection molding machine not having a pressing function and a fine mold opening function. SOLUTION: The mold for partial lamination molding comprises a movable mold having a movable part movable forward and backward in a mold clamping direction at a part for constituting a design part of the mold and a fixed mold having a gate for supplying the molten resin to a position opposed to the movable part. The mold further comprises a movable mold having a pair of protrusions becoming substantially triangular pyramids when the movable part is most advanced to an outer periphery of the movable part and distal end of an inner peripheral surface of a general part contacted with the movable part in such a manner that an advanced or retracted position of the movable part can be arbitrarily set and a fixed mold having a groove for containing the protrusion at a position opposed to the protrusion.

56. 发明专利

JP2001150505A METHOD AND APPARATUS FOR CONTROLLING MOLD CLAMPING FORCE IN INJECTION MOLDING MACHINE 失效
公开(公告)号：JP2001150505A
公开(公告)日：2001-06-05
申请号：JP33759299
申请日：1999-11-29
申请人： UBE INDUSTRIES
发明人： OKAHARA ETSUO
IPC分类号： B29C45/66 , B29C45/76
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus capable of automatically controlling the necessary minimum mold clamping force of an injection molding machine without being influenced by the skillfulness of an operator. SOLUTION: In a mold clamping force control method of an injection molding machine using a toggle closing both of a movable mold and a fixed mold and injecting and charging a molten resin in the mold cavity formed by both molds to obtain a molded article, on the basis of the relation between effective mold clamping force, which is obtained by operating the detection value obtained by detecting the mold clamping force applied to the molds during a mold clamping force holding period by a mold clamping force detecting means, and the set mold clamping force, which is obtained by operating the position of a crosshead at a time of the mating state of both molds under a dry cycle state and the detection value obtained at this time, the position of the crosshead is controlled so that the mold clamping force obtained by subtracting the set mold clamping force from the effective mold clamping force enters an arbitrary allowance range to apply constant mold clamping force to both molds during a mold clamping period.

57. 发明专利

JP2001038783A IN-MOLD COATING MOLDING METHOD AND APPARATUS USED THEREIN 失效
公开(公告)号：JP2001038783A
公开(公告)日：2001-02-13
申请号：JP21383099
申请日：1999-07-28
申请人： UBE INDUSTRIES , DAINIPPON TORYO KK
发明人： ARAI TOSHIO , OKAHARA ETSUO , KOBAYASHI KAZUAKI , YONEMOCHI KENJI , YAMAMOTO YOSHIAKI , OTA KENJI
IPC分类号： B29C45/64 , B29C45/14 , B29C45/16 , B29C45/70 , B29C45/76
摘要： PROBLEM TO BE SOLVED: To provide an in-mold coating molding method high in processing accuracy and excellent in productivity for injecting a paint in the gap between the surface of the resin molded article molded in a mold and the cavity surface of the mold to cure the same to produce an integrated molded article having a coating film closely bonded to the surface thereof. SOLUTION: In an in-mold coating molding method, a paint is injected in the gap between the surface of the resin molded article molded in molds 51, 52 and the surface of the cavity 53 formed by both molds and cured in the molds 51, 52 to produce an integrated molded article having a coating film closely bonded to the surface thereof. The hydraulic cylinder for the mold clamping driving of a toggle type injection molding machine or the stroke of the ball screw for the mold clamping driving of a toggle type motor-operated injection molding machine is subjected to feedback control by using a mold clamping servo valve 15 or servo motor to control driving according to a preset change pattern of mold opening quantity and that of mold clamping force.

58. 发明专利

JP2001030292A METHOD FOR LAMINATION MOLDING 失效
公开(公告)号：JP2001030292A
公开(公告)日：2001-02-06
申请号：JP20854299
申请日：1999-07-23
申请人： UBE INDUSTRIES
发明人： OKAHARA ETSUO
IPC分类号： B29C45/14 , B29C45/78
摘要： PROBLEM TO BE SOLVED: To prevent a breakage at a drawn portion or a wrinkle except the portion by partly warming a skin material set to a mold by a heating means before clamping the mold in a method for lamination molding having the steps of interposing the material between a pair of molds and then injection casting a molten resin in a mold cavity space. SOLUTION: In the case of lamination molding to obtain a molding by fusion adhering to integrate a surface of a core material with a skin material W, a skin material S is set to a surface of a movable mold 4 opposed to a fixed mold 3 in the state that both molds 3 and 4 of a molding apparatus are opened. Then, an elevation means 15 is driven to move to descend a vertical shaft 15a, a heat ray heater 13 and a baffle plate 14 are positioned and holed at a position opposed to the material S, and then a heat ray is radiated from the heater 13 to partly warm the material S in a range for passing the opening 14a. Thereafter, the shaft 15a is moved to be raised. The molds 3, 4 are clamped in the state that the heater 13 and the plate 14 are disposed and held above both the molds 3, 4, and a molten resin to become the core material is injection cast and dwell loaded.

59. 发明专利

JP2001009866A INJECTION MOLDING METHOD FOR DECORATED MOLDED ARTICLE 失效
公开(公告)号：JP2001009866A
公开(公告)日：2001-01-16
申请号：JP18309299
申请日：1999-06-29
申请人： UBE INDUSTRIES
发明人： OKAHARA ETSUO
IPC分类号： B29C45/16 , B29C45/14 , B29C45/56
摘要： PROBLEM TO BE SOLVED: To well transfer a transfer layer arranged on the surface of a decorating sheet to a core material in an injection molding method for a decorated molded article. SOLUTION: A decorating sheet S having a transfer layer on its surface is arranged in a mold 10, and a space between the surface of the decorating sheet S and the surface of a mold cavity opposed to the surface of the decorating sheet S is filled with a molten resin and, thereafter, the mold is opened to generate a gap between the rear surface of the decorating sheet and the surface of the mold cavity opposed to the rear surface of the decorating sheet to form an air heat insulating layer and the temp. of the transfer layer is suddenly raised and, after a preset time is elapsed from a point of time when the gap is generated, the mold is closed to eliminate the gap and the transfer layer is strongly pressed at high temp. to be well transferred to a core material to produce a decorated molded article having a beautiful surface.

60. 发明专利

JP2000108185A METHOD FOR INJECTION MOLDING 失效
公开(公告)号：JP2000108185A
公开(公告)日：2000-04-18
申请号：JP28512098
申请日：1998-10-07
申请人： UBE INDUSTRIES
发明人： OKAHARA ETSUO
IPC分类号： B29C45/70
摘要： PROBLEM TO BE SOLVED: To prevent a sink mark of a crystal resin by slightly opening a die after the die is opened and a molten resin is first injected, the die is clamped and shaped while molten resin is then injected in a die cavity and shaped, providing a gap between the molding and the cavity, and clamping the die while surface resin is capable of being flowed after a given time. SOLUTION: A polypropylene resin of a molten state in a die cavity clamped by a mold clamping unit 300 and in an injection unit 200 is metered by a first injection timer 533. At the time of elapsing a given time after completion of filling, a movable die 404 is retracted so that a gap between the molding surface and the cavity surface becomes a given value. A pressure holding state is maintained for a given time after the first injection, and then a second injection is executed. At the time of elapsing given time, the mold 404 is advanced, the die is again clamped, a thick part generated by the secondary injection is corrected, shaped, and held for a given time. Then after a given time is elapsed, a gap is provided as a heat insulation layer between the surface of the molding and the surface of the cavity, held for a given time, the die is clamped and then opened. Thus, a sink mark can be prevented at the thick part of a crystalline resin.

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