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1. 发明专利

JPH0295832A MANUFACTURE OF FIBRE REINFORCED RESIN MOLDING 失效
公开(公告)号：JPH0295832A
公开(公告)日：1990-04-06
申请号：JP24931688
申请日：1988-10-03
申请人： SEKISUI CHEMICAL CO LTD , OKAYAMA SEKISUI KOGYO KK
发明人： TOKUMARU MASAHIRO , ISHIHARA HISASHI , KINUTA TAKAMASA , KINO KIMIO
IPC分类号： B29C70/30
摘要： PURPOSE:To prevent occurrence of harmful bubbles at any parts within a laminated layer by making the viscosity at the spray of thermosetting resin to be in a specific range upon manufacturing a first laminated layer. CONSTITUTION:Thermosetting resin is sprayed on the molding mold 2 on a turntable, and staple fibres are also sprayed thereon for forming a first laminated layer 17. Moreover, thermosetting resin is sprayed on the first laminated layer 17, and long fibres are also sprayed thereon for forming a second laminated layer 18. And, upon forming the first laminated layer 17, the viscosity at the spray of thermosetting resin may be in the range of 4 poise or below at the time when the rotor speed is 60rpm. And, it may be in the range of 10 poise or above at the time when the rotor speed is 6rpm. The viscosity shows the measured value by 4.4.1 Brookfield type viscometer method of JIS-K6901. In consequence, there exist few harmful bubbles within the first laminated layer 17.

2. 发明专利

JPS63209816A SPRAY-UP MOLDING EQUIPMENT 失效
公开(公告)号：JPS63209816A
公开(公告)日：1988-08-31
申请号：JP4463587
申请日：1987-02-26
申请人： SEKISUI CHEMICAL CO LTD , OKAYAMA SEKISUI KOGYO KK
发明人： TOKUMARU MASAHIRO , MORIMOTO HISAO , OKOSE TATSUO
IPC分类号： B29C41/08 , B29C41/34 , B29K105/12
摘要： PURPOSE:To absorb the sag of a roving generated during supply by a guide pipe following up the movement of a robot by guiding the roving to a roving cutter through an extensible and bendable guide pipe. CONSTITUTION:A roving 1 is fed to a roving cutter 2 through the inside of a guide pipe 7, and cut in specified length by the roving cutter 2, and a resin discharged from a spray nozzle 3 and the roving 1 are discharged and laminate- molded in a mold 12 at a fixed rate. Even when sag is generated in the roving 1 by the shifting of a robot 6, the rocking of a horizontal arm 6a and a vertical arm 6b for the robot 6 or the angular change of a spray gun 5 at that time, the guide pipe 7 follows up the movement of the robot 6 and is expanded and contracted, and the sag of the roving 1 is absorbed. The sag of the roving 1 generated by inertia force at the time when the supply of the roving 1 is stopped is also absorbed into the guide pipe 7.

3. 发明专利

JPS57185116A METHOD OF MOLDING REINFORCED RESIN TUBULAR BODY 失效
公开(公告)号：JPS57185116A
公开(公告)日：1982-11-15
申请号：JP6997081
申请日：1981-05-08
申请人： SEKISUI CHEMICAL CO LTD , OKAYAMA SEKISUI KOGYO KK
发明人： MAYUMI MASAKATSU , MISOKA KENJI , TOKUMARU MASAHIRO
IPC分类号： B29C57/00 , B29C67/00 , B29C70/06
摘要： PURPOSE:To easily mass-produce reinforced resin tubular bodies whose inner configuration is complicated, by forming a reinforcing resin molding material layer around a core mold having a synthetic resin foamed body on the outer surace layer followed by the curing of the reinforcing resin molding material layer. CONSTITUTION:A reinforcing resin molding material made up of a glass fiber reinforcing material and a low-temperature curing unsaturated polyester resin liquid is wound around the tubular foamed body 1 of the core mold to form the reinforcing resin molding material layer 5, which is cured by heating it at a temperature at which the foamed body 1 constituting the core mold would not be deformed to produce the reinforced resin tubular body 6. A rotating shaft 3, a support 4, setting members 2, etc. are removed to obtain the reinforced resin tubular body 6 with the tubular foamed body 1 retained therein, and the tubular body 6 is heated with steam from the outside so that the tubular foamed body 1 can be shrinked. Then as a gap 7 is formed between the reinforced resin tubular body 6 and the tubular foamed body 1, eityer the foamed body that has been shrinked is removed as it is or it is removed after it is broken to get the reinforced resin tubular body 6.

4. 发明专利

JPS63239031A MANUFACTURE OF REINFORCED PLASTIC MOLDED ITEM 失效
公开(公告)号：JPS63239031A
公开(公告)日：1988-10-05
申请号：JP7557187
申请日：1987-03-27
申请人： SEKISUI CHEMICAL CO LTD , OKAYAMA SEKISUI KOGYO KK
发明人： MORIMOTO HISAO , TOKUMARU MASAHIRO , OKOSE TATSUO
IPC分类号： B29C70/06 , B29L9/00
摘要： PURPOSE:To reduce the molding manhours to a great extent and prevent the quality of an item from lowering due to residual bubbles by a method wherein a lamination layer is formed onto a gelcoat-reinforcing layer, which is produced by curing a ultraviolet-curing resin laminated onto a gelcoat layer formed onto a mold. CONSTITUTION:A gelcoat layer 1 and a lamination layer 3 are made of unsaturated polyester resin. A gelcoat-reinforcing layer 2 is cured by ultraviolet rays and essentially consists of a mixture of prepolymer and monomer and photo- curing-initiator and, when necessary, mixed with additive. The gelcoat- reinforcing layer 2 is produced by laminating a gelcoat-reinforcing resin onto a gelcoat layer 1, which is formed by laminating gelcoat resin onto a mold 5 by the predetermined thickness by spray-up and cured with an irradiation device 10. The lamination layer 3 is formed by laminating a mixture of glass fibers and thermosetting resin such as polyester resin or the like onto the gelcoat-reinforcing layer 2 by the predetermined thickness and curing by heating after degassing.

5. 发明专利

JPS63239016A SPRAY-UP MOLDING EQUIPMENT 失效
公开(公告)号：JPS63239016A
公开(公告)日：1988-10-05
申请号：JP7557287
申请日：1987-03-27
申请人： SEKISUI CHEMICAL CO LTD , OKAYAMA SEKISUI KOGYO KK
发明人： MORIMOTO HISAO , TOKUMARU MASAHIRO , OKOSE TATSUO
IPC分类号： B29C41/08 , B29C41/34 , B29K105/12
摘要： PURPOSE:To prevent resin and fibers, which are sprayed against and rebound off a mold, from adhering to a spray gun by a method wherein a plurality of gas jets are provided at the periphery of the spray gun in order to jet gas ahead the spray gun. CONSTITUTION:Roving is supplied through a guide pipe 6 to a roving cutter 7 so as to be cut in lengths in order to be discharged from a discharge port 7a. A spray nozzle mixes resin and hardener, which are supplied to the spray nozzle, and discharges them from a discharge port 8a. Both the resin and the fibers, which are respectively discharged from the discharge ports 7a and 8a, are mixed with each other and sprayed against a mold. Even when the resin (including the fibers and the hardener), which is sprayed against the mold, rebounds off the mold and scatters on the side of the spray gun 1, the spray gun 1 is covered by the air, which is jetted ahead the spray gun from a gas jetting device 5, which is arranged at the back of the spray gun 1.

6. 发明专利

JPH01291925A MANUFACTURE OF FIBER REINFORCED PLASTIC MOLDED PRODUCT 失效
公开(公告)号：JPH01291925A
公开(公告)日：1989-11-24
申请号：JP12426788
申请日：1988-05-20
申请人： SEKISUI CHEMICAL CO LTD , OKAYAMA SEKISUI KOGYO KK
发明人： TOKUMARU MASAHIRO , TAKATSUJI MASABUMI , KINUTA TAKAMASA
IPC分类号： B29C70/06
摘要： PURPOSE:To release a mold without damaging a molded product in a short time by feeding compressed air into recessed grooves provided on the periphery of a mold and a jetting hole provided almost at the center of the mold, releasing automatically the molded product peripheral section and then releasing a central section. CONSTITUTION:Recessed grooves 21 with U-shaped section are provided on the four spots of the molded surface side (surface in contact with a molded product) of a periphery 11 of a mold 1, and a jetting hole 22 with U-shaped section jetting compressed air is provided on almost a center 12 of the mold 1. A fiber reinforced resin molding material (FRP molding material) is formed on the molding surface of the mold 1 and cured. Compressed air is fed into the recessed grooves 21 and a jetting hole 22 provided on the central section 12. First, cap components 3 fixed in the recessed grooves 21 are pushed up by the compressed air to push up a peripheral section of an FRP molded product 5 and release the same out of the mold 1. Then, the compressed air from the jetting hole 22 is forcibly fed between the central section of the FRP molded product 5 and the central section 12 of the mold 1, and released to release and separate the whole.

7. 发明专利

JPH01272441A FIBER REINFORCED PLASTIC MOLDED PRODUCT 失效
公开(公告)号：JPH01272441A
公开(公告)日：1989-10-31
申请号：JP10194088
申请日：1988-04-25
申请人： SEKISUI CHEMICAL CO LTD , OKAYAMA SEKISUI KOGYO KK
发明人： TOKUMARU MASAHIRO , TAKATSUJI MASABUMI , KINUTA TAKAMASA
IPC分类号： B29C70/06
摘要： PURPOSE:To prevent the generation of a sink mark in a gel coat layer, by a method wherein a gel coat reinforcing layer mixed with a fiber powder is provided to the outside of the gel coat layer in a specific thickness and the first laminate layer mixed with a fiber having a specific length is provided outside said reinforcing layer in a specific thickness and the second laminate layer is further provided outside the first laminate layer. CONSTITUTION:A gel coat layer 2 is provided to an inside surface and a gel coat reinforcing layer 3 mixed with a fiber powder is provided to the outside of said layer 2 in a thickness of 0.2mm or more while the first laminate layer 4 mixed with a fiber having a length of 2-5mm is provided outside said reinforcing layer 3 in a thickness of 0.4-1.5mm and the second laminate layer 5 is further provided outside the first laminate layer. In the gel coat reinforcing layer 3, 20-30pts.wt. of an inorg. filler and 4-7pts.wt. of a glass fiber powder are mixed with 100pts.wt. of a resin. In the gel coat layer 2, an unsaturated polyester resin is used in general. By this method, even when a laminate layer having a thickness of 2mm or more is simultaneously laminated along with the gel coat layer 2 by one work, the generation of a sink mark in the gel coat layer or the appearance of a glass fiber pattern on said layer 2 is eliminated and a smooth surface is obtained.

8. 发明专利

JPS6438222A MANUFACTURE OF MOLDED OBJECT MADE OF FIBER REINFORCED PLASTIC 失效
公开(公告)号：JPS6438222A
公开(公告)日：1989-02-08
申请号：JP19509987
申请日：1987-08-04
申请人： SEKISUI CHEMICAL CO LTD , OKAYAMA SEKISUI KOGYO KK
发明人： MORIMOTO HISAO , TOKUMARU MASAHIRO , NAKAZAWA ISAO , TAKATSUJI MASABUMI , KINUTA TAKAMASA
IPC分类号： B29C70/06 , C08J5/04
摘要： PURPOSE:To cause the attachment of a reinforcing member to be easy by a method in which the foamed sheet with continuous foam and a reinforcing member are arranged in this order on a laminated layer in which the molding material impregnated with thermosetting resin is laminated, while said laminated layer is in uncured state, and then said reinforcing member is cured by applying pressing force thereto. CONSTITUTION:After the upper surface of a mold 1 has been coated with unsaturated polyester resin, the resin is cured under heating, whereby a gel coat layer 2 is formed. Next, the gel coat layer 2 is coated with the unsaturated polyester resin in which the chopped strand of glass fiber is mixed with a curing agent, and it is deaerated, thereby molding the laminated layer 3 is uncured state. Next, the polyurethane foamed sheet 4 with continuous foam impregnated with unsaturated polyester resin is placed on the laminated layer 3, and then the reinforcing member 7 composed of a composite laminate 5 having fixed steel material 6 is attached onto this polyurethane foamed sheet 4. Uniform load is applied onto the total surface of this composite laminate 5, thereby curing under heating the composite laminate 5, the polyurethane foamed sheet 4 and the laminated layer 3.

9. 发明专利

JPS63309428A FIBER-REINFORCED PLASTIC MOLDED PRODUCT AND ITS MANUFACTURE 失效
公开(公告)号：JPS63309428A
公开(公告)日：1988-12-16
申请号：JP14547887
申请日：1987-06-10
申请人： SEKISUI CHEMICAL CO LTD , OKAYAMA SEKISUI KOGYO KK
发明人： MORIMOTO HISAO , TOKUMARU MASAHIRO , OKOSE TATSUO
IPC分类号： B29C70/30 , B29C70/06 , B29C70/12 , B29L22/00 , B32B27/04 , B32B27/12
摘要： PURPOSE:To contrive elimination or reduction of labour in facilities by reducing sharply processes in lamination molding, by a method wherein a gelcoat resin layer is provided on the inner surface, a gelcoat-reinforced layer mixed with a short fiber or a specific length is provided on the outside of the gelcoat- reinforced layer and a lining laminated layer composed of fiber-reinforced resin is provided on the outside of the same further. CONSTITUTION:A gelcoat layer 1 is formed and then resin for gelcoat is cured after the same mixed with a short fiber of 0.2-1.0mm long has been laminated to a thickness of 0.3-0.8mm through a spray-up method or a hand lay-up method, and then a gelcoat reinforced layer 2 is formed. Then laminating resin obtained by mixing up chapped strand of a glass fider or a glass mat with thermosetting resin, for example, unsaturated polyester resin is laminated on the gelcoat reinforced layer 2 to a thickness of 1.0-3.0mm through the hand lay-up method or the spray-up method. After defoaming, the laminated resin is either heated or cured at normal temperature, through which a lining laminated layer 3 is formed.

10. 发明专利

JPS62152839A FIBER REINFORCED RESIN MOLDED SHAPE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPS62152839A
公开(公告)日：1987-07-07
申请号：JP29892185
申请日：1985-12-27
申请人： SEKISUI CHEMICAL CO LTD , OKAYAMA SEKISUI KOGYO KK
发明人： TOKUMARU MASAHIRO , TAKATSUJI MASABUMI , KINO KIMIO
IPC分类号： B32B5/28 , B32B5/00 , B32B17/04 , B32B27/04 , B32B27/20

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