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1. 发明专利

JP2001311490A PIPE JOINT 失效
公开(公告)号：JP2001311490A
公开(公告)日：2001-11-09
申请号：JP2000129428
申请日：2000-04-28
申请人： SEKISUI CHEMICAL CO LTD
发明人： YAMAMOTO KAZUYOSHI
IPC分类号： F16L21/08
摘要： PROBLEM TO BE SOLVED: To propose a pipe joint which can allow a so-called required adjustment work, thereby can attain a reliable connection of the pipe and can eliminate a burdensome connection work. SOLUTION: A hole is provided on a ring holding section penetrating therethrough to the outside of a receiving mouth, a ring radius expansion member is inserted beforehand into the hole from outside the receiving mouth and is fitted into a split of a split ring to keep expanding the radius of the split ring larger than the outer diameter of the pipe and thereby the insertion to and the withdrawal from the pipe to be connected can be done easily during the connection work. After being set up at proper position through adjustments by insertion to or withdrawal from the pipe, the ring radius expansion member is removed from the split of the split ring, then the split ring is locked to the pipe and the pipe is prevented from coming out. Since there is no such process in which the undue stress is applied, the laborious pipe connection work is lightened and there is no apprehension that any component is damaged.

2. 发明专利

JP2001162692A METHOD FOR MANUFACTURING LIGHTWEIGHT COMPOSITE PANEL AND MANUFACTURING DEVICE THEREFOR 失效
公开(公告)号：JP2001162692A
公开(公告)日：2001-06-19
申请号：JP34767299
申请日：1999-12-07
申请人： SEKISUI CHEMICAL CO LTD
发明人： YAMAMOTO KAZUYOSHI , FUKUI KOJI , SHIRATO HITOSHI
IPC分类号： E04B1/80 , B29C39/10 , B29D28/00 , C08J9/00 , E04C2/22
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a lightweight composite panel by which it is possible to manufacture a foam core honeycomb sandwich structure or a foam core honeycomb structure, known as a panel-shaped lightweight structural member with superior mechanical strength, in particular in a simpler and more efficient manner than by a conventional method, by avoiding difficulties encountered when the honeycomb structural member is made using the conventional method. SOLUTION: The method for manufacturing a lightweight composite panel by which the foam core honeycomb structural member is formed comprises the process to form a lattice-shaped groove 2 such as a squire simple lattice in preferably, a thermoplastic plastic foam, especially, a platelike porous body 1 of a polyolefin foam such as a polyethylene foam or a polypropylene foam, with the help of a heat generating wire, the process to fill the lattice-shaped groove 2 with, preferably a thermosetting or a reactive curable substance 3 such as an epoxy resin, for example, and the process to cure the curable substance by means of heating or the like. Also the manufacturing device for the lightweight composite panel is provided.

3. 发明专利

JP2001079868A PRODUCTION OF COMPOSITE FOAM 失效
公开(公告)号：JP2001079868A
公开(公告)日：2001-03-27
申请号：JP26055399
申请日：1999-09-14
申请人： SEKISUI CHEMICAL CO LTD
发明人： FUKUI KOJI , SHIRATO HITOSHI , YAMAMOTO KAZUYOSHI
IPC分类号： B29C44/00
摘要： PROBLEM TO BE SOLVED: To provide a composite foam manufacturing method capable of developing stable mechanical strength in composite foam comprising aggregate of cell structural units consisting foam domains having a polyhedral shape and the thin film cell walls surrounding the foam domains. SOLUTION: At least one set of a two-layered structure consisting of a layer of foamable beads A foamed by heating and the layer of a resin film B, which is softened at the foaming temp. of the foamable beads A to flow to be polymerized and cured or crosslinked and cured, laminated on the layer of the foamable beads A is arranged on the bottom part of a mold 1 and the mold 1 is closed to be heated to the foaming temp. of the foamable beads A before cooled.

4. 发明专利

JP2000146043A PIPE CONNECTING STRUCTURE 失效
公开(公告)号：JP2000146043A
公开(公告)日：2000-05-26
申请号：JP32667898
申请日：1998-11-17
申请人： SEKISUI CHEMICAL CO LTD
发明人： YAMAMOTO KAZUYOSHI , MIZUKAWA KENJI , HITOMI SEIICHI
IPC分类号： F16L21/04
摘要： PROBLEM TO BE SOLVED: To display an excellent watertight performance, even though a bending load is applied to the connection of a polyolefine resin pipe and a removal preventive tube fitting, in particular. SOLUTION: In this pipe connecting structure, a rubber ring 4 for sealing is installed in a circular recessed groove provided on the inner peripheral surface at the opening end side of a coupling main body 2, the inner peripheral surface 22 of the coupling main body 2 positioning at the inner side of the rubber ring 4 has an inclined groove increasing its diameter toward the inner side, and the spigot 51 of a resin pipe 5 installed with a cylindrical reinforcement 6 in the spigot is inserted and connected, in a socket disposed with a split ring for pipe fastening having an inclined outer peripheral surface almost fitting to its inner peripheral surface in a loosely engaged state. In this case, two ring form projection lines are projected along the peripheral direction, on the inner peripheral surface of the circular recessed groove.

5. 发明专利

JP2000028060A SEPARATION PREVENTING PIPE JOINT 失效
公开(公告)号：JP2000028060A
公开(公告)日：2000-01-25
申请号：JP19167998
申请日：1998-07-07
申请人： SEKISUI CHEMICAL CO LTD
发明人： YAMAMOTO KAZUYOSHI , MIZUKAWA KENJI , HITOMI SEIICHI
IPC分类号： F16L21/08
摘要： PROBLEM TO BE SOLVED: To provide a separation preventing pipe joint equipped with a pipe fastening split ring having excellent characteristics as a joint member for a piping of, especially a polyolefine pipe. SOLUTION: In this separation preventing pipe joint 1, a sealing rubber ring 4 is mounted in the inside of an annular recessed groove 21 arranged in the inner circumferential surface of the opening end part side of a polyethylene resin cylindrical joint body 2, the inner circumferential surface of the joint body 2 positioned on an inner side than the rubber ring 4 is formed into a slant groove 23 enlarged toward an inner part, a pipe fastening split ring 3 having a slant peripheral surface 31 approximately coinciding with the inner circumferential surface 22 of the slant groove 23 is arranged under a loosely fitted condition in the inside of the slant groove 23, and the split ring 3 is formed of a linear polyphenylene sulfide resin having physical properties of elastic modulus in bending of 3630 MPa and notched Izod impact strength of 25 J/m.

6. 发明专利

JPH11131630A FIRE RESISTIVE STRUCTURE BODY 失效
公开(公告)号：JPH11131630A
公开(公告)日：1999-05-18
申请号：JP29565097
申请日：1997-10-28
申请人： SEKISUI CHEMICAL CO LTD
发明人： YAMAMOTO KAZUYOSHI , NUMATA NORIO
IPC分类号： E04B1/94 , B32B5/18 , B32B7/02
摘要： PROBLEM TO BE SOLVED: To obtain excellent fire resistance by forming a fire resistive structure body of a face bar layer formed of non-combustible material, a fire resistive expansion sheet layer and a foam body or cushioning material layer, and forming the fire resistive sheet layer of thermoplastic resin or rubber material. SOLUTION: A fire resistive expansion sheet layer 2 and a layer 31 formed of a foam body or cushioning material, are laminated on one face of a face bar layer 1 formed of a composite board with an inorganic board 11 and a metal board 12 laminated, to form a fire resistive structure body. A face bar layer 1, a layer 31 formed of a foam body and cushioning material, and a fire resistive expansion sheet layer 2 are laminated in this order to form a fire resistive structure body, and the foam body and cushioning material layer 31 is formed into a layer comprising wire gauze of corrugated, protrusive or uneven shape, or a honeycomb layer. A fire resistive expansion sheet 2 and wire gauze of hexagonal pattern are laminated on a face bar layer 1 with a stainless steel plate 12 laminated on an inorganic board 11 formed of cement- chip compound material, to form a fire resistive structure body. The structure body excellent in fire resistance can therefore be obtained.

7. 发明专利

JPH10176084A POLYOLEFIN-BASED RESIN COMPOSITION AND ITS PRODUCTION 失效
公开(公告)号：JPH10176084A
公开(公告)日：1998-06-30
申请号：JP34132596
申请日：1996-12-20
申请人： SEKISUI CHEMICAL CO LTD
发明人： YAMAMOTO KAZUYOSHI
IPC分类号： C08K3/34 , C08F4/64 , C08F4/659 , C08F4/6592 , C08L23/08 , C08L23/10
摘要： PROBLEM TO BE SOLVED: To obtain the subject resin composition capable of exhibiting hood moldability and providing a molding product excellent in rigidity, impact resistance at low temperature and low linear expansion property by mixing a polypropylene-based resin with a specific polyethylene-based resin and talc at a specific ratio. SOLUTION: This resin composition comprises (A) 30-60wt.% polypropylene- based resin, (B) 20-40wt.% polyethylene-based resin obtained by copolymerizing ethylene (B1 ) with an α-olefin (B2 ) by using a metallocence compound (B3 ) containing a quadrivalent transition metal as a polymerization catalyst and (C) 20-30wt.% talc. The composition is obtained by previously mixing, e.g. 100 pts.wt. component B with 50-150 pts.wt. component C to integrate these components and mixing and integrating 40-70wt.% resultant composition with 60-30wt.% component A.

8. 发明专利

JPH09241588A RESIN COMPOSITION FOR MICROWAVE WELDING AND METHOD FOR JOINTING PIPES THEREWITH 失效
公开(公告)号：JPH09241588A
公开(公告)日：1997-09-16
申请号：JP5292896
申请日：1996-03-11
申请人： SEKISUI CHEMICAL CO LTD
发明人： YAMAMOTO KAZUYOSHI , MURASHIMA MASATOSHI
IPC分类号： C08J5/12 , B29C65/14 , B29C65/34 , B29L23/00 , C09J5/06 , C09J7/00 , C09J11/08 , C09J201/00
摘要： PROBLEM TO BE SOLVED: To obtain a resin composition which has a high rate of heat exchange, can produce a large quantity of heat, and can realize a work for jointing pipes made of a polyolefin resin easily without fail in virtue of its excellent application properties by mixing a specified polyethylene resin with conductive aniline polymer microparticles. SOLUTION: This composition is prepared by mixing 5-100 pts.wt. conductive aniline polymer microparticles in 100 pts.wt. polyethylene resin having a density of 0.840-0.925g/cm . A microwave source used to weld polyethylene resin adherends with the composition is, for example, one of a commercial frequency of 2.45GHz and an electric power of 100-2,000W. When a bonding molding made of the composition is dielectrically heated by irradiation with microwaves, it can reach evenly and efficiently to the melting temperature of the polyethylene resin moldings to be welded and weld then without causing the polyethylene resin to deteriorate due to partial overheating.

9. 发明专利

JPH0999462A ANALYSER FOR FILLING DWELLING PRESSURE COOLING PROCESS 失效
公开(公告)号：JPH0999462A
公开(公告)日：1997-04-15
申请号：JP25757095
申请日：1995-10-04
申请人： SEKISUI CHEMICAL CO LTD
发明人： YAMAMOTO KAZUYOSHI
IPC分类号： B29C45/76 , B29C45/46 , B29C45/77
摘要： PROBLEM TO BE SOLVED: To provide an analyser for a flexible pressure holding process capable of easily constructing an analysing system to various variations. SOLUTION: An analyzing means 1 is equipped with a defining accumulation means 2 holding the corresponding relation between the names of indivisual function units and actual processing content, an execution part 3 reducing and executing functional units to actual processing content realizing respective functions and changing control flow according to the evaluation results thereof and a sentence analyzing part 5 reading the function call-out function command shown as the name described in an external file 4.

10. 发明专利

JPH08239631A RESIN SHEET FOR MICROWAVE WELDING, RESIN COMPOSITION FOR MICROWAVE WELDING, AND METHOD OF WELDING THEREWITH 失效
公开(公告)号：JPH08239631A
公开(公告)日：1996-09-17
申请号：JP4292995
申请日：1995-03-02
申请人： SEKISUI CHEMICAL CO LTD
发明人： YAMAMOTO KAZUYOSHI , MURASHIMA MASATOSHI
IPC分类号： C08J5/12 , B29C65/14 , B29C65/34 , B29K23/00 , B29L23/00 , B32B27/18 , C08L23/02 , C08L79/00 , C08L87/00 , C09J5/00 , C09J7/00 , C09J9/02 , C09J123/00 , C09J179/00 , C09J201/00
摘要： PURPOSE: To obtain a resin sheet for microwave welding having a high rate of heat exchange, giving a high calorific value, being capable of welding irrespectively of the deterioration of the resin and giving a high welding strength. CONSTITUTION: This sheet is prepared by lamination of an adhesive layer made of a thermoplastic resin and having a thickness of 0.01-3 mm with a heat- generating layer made of a mixture prepared by dispersing 5-100 pts.wt. fine conductive aniline polymer particles in 100 pts.wt. above thermoplastic resin and having a thickness of 0.01-3mm.

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