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1. 发明专利

JPH06229492A JOINT STRUCTURE FOR CORRUGATE PIPE 失效
公开(公告)号：JPH06229492A
公开(公告)日：1994-08-16
申请号：JP3747593
申请日：1993-02-01
申请人： KURIMOTO LTD , MITSUBISHI PETROCHEMICAL CO
发明人： KITAGAWA MASAYOSHI , SHIOMI ICHIRO , NAKANO RYOICHI , NAGASE SADAO
IPC分类号： F16L33/00 , F16L33/28
摘要： PURPOSE:To apply as various kinds of pipe joints by forming a joint into a right circular cylinder and the like according to a pipe line to be formed, providing a projecting row to be engaged with a corrugate pipe end part side face in the inner face, and opening an insertion port for a falling out preventing pin to be engaged with a corrugate pipe recessed part in the outer circumferential part. CONSTITUTION:A plastic joint 2 is formed into a right circular cylinder, an elbow, a cheese, and the like according to a pipe line to be formed. A projecting row 21 to be engaged with the end part side faces 13 of corrugate pipes 1A, 1B is projectingly arranged on the inner face 23 of the joint 2. When the corrugate pipes 1A, 1B are inserted, the end part side faces 13 touch the projecting row to be positioned. Under this condition, a pin insertion port 22 is opened so that a pin 4 for preventing falling out can be inserted into a recessed part, 11A of each of the corrugate pipes 1A, 1B. In addition, a rubber ring 3 is arranged in another recessed part 11B of each of the corrugate pipes 1A, 1B.

2. 发明专利

JPH06331086A CONNECTION METHOD FOR FLUID TRANSFERRING PIPE AND BRANCH PIPE 失效
公开(公告)号：JPH06331086A
公开(公告)日：1994-11-29
申请号：JP11715493
申请日：1993-05-19
申请人： MITSUBISHI PETROCHEMICAL CO , KURIMOTO LTD
发明人： NAGASE SADAO , BAN HISAYOSHI , ITO MASAHIDE , KITAGAWA MASAYOSHI , NAKANO RYOICHI , SHIOMI ICHIRO
IPC分类号： B29C65/00 , B29C65/34 , F16L47/02
摘要： PURPOSE:To prevent occurrence of partial fusion strength in a connection part of a branch port formed on a fluid transferring pipe such as a corrugate pipe to a branched pipe. CONSTITUTION:A branch pipe 2 made of thermosetting resin is inserted into a circular branch port 1a of a corrugated pipe 1 made of thermosetting resin. Current carrying is performed to a nichrome wire previously wound around a connection part 2a of the branch pipe 2 to the branch port 1a for connecting the corrugate pipe 1 to the branch pipe 2. An outer diameter of the branch pipe 2 at its connection part 2a to the branch port 1a is previously set larger than the diameter of the branch port 1a by 0.5 to 5.0%. A leading end 2b of the branch pipe 2 is gradually narrowed as it goes from the connection part 2a to the tip portion. In addition, the outer diameter of the leading end is previously set smaller than the diameter of the branch port 1a.

3. 发明专利

JPH06213385A PLASTIC DIVERGENT SADDLE FOR CORRUGATE PIPE AND METHOD FOR MOUNTING 失效
公开(公告)号：JPH06213385A
公开(公告)日：1994-08-02
申请号：JP2488793
申请日：1993-01-19
申请人： KURIMOTO LTD , MITSUBISHI PETROCHEMICAL CO
发明人： KITAGAWA MASAYOSHI , SHIOMI ICHIRO , NAGASE SADAO
IPC分类号： B29C65/34 , B29L31/24 , F16L33/00 , F16L33/28 , F16L41/06 , F16L47/02
摘要： PURPOSE:To facilitate mounting of a branch saddle by forming a surface unevenness on the pipe axis direction inside surface of the branch saddle so that the surface unevenness on the periphery of a corrugate pipe can be fitted concave to convex, mounting an electric wire for heating along this uneven surface on the saddle bore. and thereby enabling fusion attachment of the two uneven surfaces with current feed to the electric wire. CONSTITUTION:A branch saddle 1 made of plastic has a socket 12, which is in the form of a perfect cylinder perpendicular to the pipe axis and is positioned in the upper part of the saddle 1, and an uneven surface 11 which is positioned in the lower part, formed in a semi-cylinder parallel to the pipe axis, and whose inside surface can be fitted on/in convexes and concaves of the corrugated pipe uneven surface. An electric wire 3 for heating is laid along this uneven surface 11. When the saddle 1 is to be mounted, the uneven surfaces of the corrugated pipe and saddle 1 are fitted each other, and in this condition, current is fed to the electric wire 3 to melt the plastic material surrounding, and thereby the two members are fusion attached into a single piece. Thus joining is completed.

4. 发明专利

JPH06185681A MANUFACTURE OF CORRUGATED PIPE INCORPORATING SLEEVE 失效
公开(公告)号：JPH06185681A
公开(公告)日：1994-07-08
申请号：JP34020592
申请日：1992-12-21
申请人： MITSUBISHI PETROCHEMICAL CO , KURIMOTO LTD
发明人： NAGASE SADAO , BAN HISAYOSHI , ITO MASAHIDE , KITAGAWA MASAYOSHI , SHIOMI ICHIRO
IPC分类号： F16L11/11 , F16L33/00 , F16L33/28
摘要： PURPOSE:To provide a double wall pipe incorporating a sleeve which can increase the connecting strength of the sleeve to the double wall pipe, which can completely seal the connecting part of the sleeve to the double wall pipe, and which can facilitate the connection of the sleeve to the double wall pipe. CONSTITUTION:A high density polyethylene double wall pipe 1 in which a cylindrical outer wall formed alternately with annular crest and trough parts is fitted on a cylindrical inner wall with the trough parts being thermally welded to the latter, is fitted therein with a high density polyethylene sleeve 2 having an inner diameter substantially equal to the outer diameter of the double wall pipe 1, and molten high density polyethylene is filled in annular gaps defined between the trough parts 1a of the double wall pipe 1 and the sleeve 2 through a filling hole 2a formed in the sleeve 2 so as to fix the pipe 1 and sleeve 2.

5. 发明授权

US3671617A Method of drawing thermoplastic synthetic resin film over a polyangular mandrel 失效
标题翻译：在多晶硅管材中绘制热塑性合成树脂膜的方法
公开(公告)号：US3671617A
公开(公告)日：1972-06-20
申请号：US3671617D
申请日：1969-12-01
申请人： MITSUBISHI PETROCHEMICAL CO
发明人： NAGASE SADAO
IPC分类号： B29C47/00 , B29C47/34 , B29C23/00
CPC分类号： B29C47/34 , B29C47/0026 , B29C47/0057 , B29C47/0059
摘要： A method of drawing a tubular thermoplastic resin film comprising transporting said tubular film onto a mandrel which has a polyangular conical shape, causing the uniform occurrence of necking initiation points around the circumference of said film by drawing said film around said mandrel, and continuing to draw said film by the action of fluid pressure exerted within said film after said film has passed over said mandrel.
摘要翻译：一种拉制管状热塑性树脂膜的方法，包括将所述管状膜输送到具有多角形圆锥形的心轴上，通过将所述薄膜拉伸在所述心轴周围，使所述薄膜周围的颈缩起始点均匀地发生，并且继续绘制所述薄膜通过在所述薄膜经过所述心轴之后施加在所述薄膜内的流体压力的作用。

6. 发明授权

US3619454A Method of preparing polypropylene sheet 失效
标题翻译：制备聚丙烯片的方法
公开(公告)号：US3619454A
公开(公告)日：1971-11-09
申请号：US3619454D
申请日：1968-10-28
申请人： MITSUBISHI PETROCHEMICAL CO
发明人： SAKATA RIKITA , MASUDA KOHEI , NAGASE SADAO
IPC分类号： B29B13/00 , B29C47/88 , B29C25/00
CPC分类号： B29B13/00 , B29C47/0021 , B29C47/8815 , B29C47/8845 , B29C47/886 , B29C47/8875 , B29C47/8895
摘要： Method of preparing polypropylene sheets by contacting at least one surface of a molten polypropylene sheet with a quenching roller to cool the surface of the sheet to a temperature below the melting point of the polypropylene while the inner portion of the sheet is allowed to remain in the molten state, and then contacting the sheet with quenching water maintained at a temperature lower than 40* C.

7. 发明专利

DE1805699A1 未知
公开(公告)号：DE1805699A1
公开(公告)日：1969-05-22
申请号：DE1805699
申请日：1968-10-28
申请人： MITSUBISHI PETROCHEMICAL CO
发明人： SAKATA RIKITA , MASUDA KOHEI , TAKASHI MASANORI , NAGASE SADAO
IPC分类号： B29B13/00 , B29C47/88 , B29C25/00
摘要： 1,214,395. Making polypropylene films and sheets. MITSUBISHI PETROCHEMICAL CO. Ltd. 28 Oct., 1968 [27 Oct., 1967], No. 50965/68. Heading B5B. Polypropylene films and sheets are made by melt extruding a crystallizable substantially isotactic polypropylene through a slot die to form a flat molten sheet at least one surface of which is caused to pass over and in contact with a quenching roller, the temperature of the peripheral surface of the roller and the period of contact of any point on the surface of the sheet with the roller being such that the surface of the sheet is cooled to a temperature below the melting point of the polymer while the inner portion of the sheet remains in the molten state. Both surfaces of the sheet are then contacted with quenching water (as by passing through a bath of quenching water) maintained at a temperature not exceeding 40‹ C. Prior to being contacted with the quenching roll the film, after leaving the quenching roll, may be passed over a second quenching roll in such a manner that the other surface of the film is also cooled to below the melting point of the polymer, the inner portion of the film still remaining in a molten state. The molten polypropylene sheet may have a thickness exceeding 0À5 mm., e.g. 1À5 mm. In the examples, a sheet having a thickness of 1À5 mm made according to the process of the invention, may be biaxially stretched at a stretch ratio of 5 in the longitudinal and 7 in the transverse direction to obtain a biaxially stretched film having a thickness of 35 microns. The period of contact of the molten polypropylene sheet with the quenching roller may be in accordance with the expression:- in which:- # = the contact time in seconds; L = the thickness of the sheet in cm.; t 0 = the temperature of the molten polymer in ‹C.; t, = the surface temperature of the quenching roller in ‹C. Quenching water may be ejected from nozzles on to both surfaces of the sheet while it is passed through the quenching bath.

8. 发明专利

DE1960271A1 未知
公开(公告)号：DE1960271A1
公开(公告)日：1970-06-18
申请号：DE1960271
申请日：1969-12-01
申请人： MITSUBISHI PETROCHEMICAL CO
发明人： NAGASE SADAO
IPC分类号： B29C47/00 , B29C48/355 , B29D7/24
摘要： A method of drawing a tubular thermoplastic resin film comprising transporting said tubular film onto a mandrel which has a polyangular conical shape, causing the uniform occurrence of necking initiation points around the circumference of said film by drawing said film around said mandrel, and continuing to draw said film by the action of fluid pressure exerted within said film after said film has passed over said mandrel.

9. 发明专利

JPH05170932A TUBULAR POLYPROPYLENE RESIN MOLDING FOR WATERSUPPLY AND DRAINAGE 失效
公开(公告)号：JPH05170932A
公开(公告)日：1993-07-09
申请号：JP34424291
申请日：1991-12-26
申请人： MITSUBISHI PETROCHEMICAL CO
发明人： NAGASE SADAO , BAN HISAYOSHI , FUJIMURA KAZUMASA , INAGAKI HITOSHI
IPC分类号： C08J5/00 , C08K5/04 , C08K5/36 , C08L23/10 , C08L51/06 , C08L53/00 , F16L9/12
摘要： PURPOSE:To provide a tubular polypropylene resin molding for watersupply and drainage, having improved durability and resistant to the deterioration of the resin e.g. in the use as a water-supply and drainage pipe or joint. CONSTITUTION:The objective molding is composed of a polypropylene resin composition produced by compounding (A) 100 pts.wt. of a polypropylene resin with (B) 0.05-3 pts.wt. of 3,9-bis{2-[3-(3-t-butyl-4-hydroxy-5-methylphenyl) propionyloxy]-1,1-dimethylethyl}-2,4,8,10-tetraoxaspiro[5.5]undecane and 0.05-3 pts.wt. of a dialkyl-3,3'-thiodipropionate.

10. 发明专利

JPH03193344A THERMOPLASTIC ELASTOMER LAMINATED FILM 失效
公开(公告)号：JPH03193344A
公开(公告)日：1991-08-23
申请号：JP33389789
申请日：1989-12-22
申请人： MITSUBISHI PETROCHEMICAL CO
发明人： AKUTSU SUSUMU , NAGASE SADAO , SUDO KIYOMA , MORI MASAYA
IPC分类号： B32B25/04 , B32B7/10
摘要： PURPOSE:To improve stretchability and heat-resistant creep properties by making thermal fusing properties favorable, by a method wherein a thermoplastic elastomer layer selected out of a group comprised of a urethane series superior in heat-resistant creep properties and a thermoplastic elastomer layer superior in thermal fusing properties into polyolefin series resin are laminated through an adhesive polymer layer. CONSTITUTION:The present film is obtained by laminating at least one kind of an elastomer layer selected out of a group comprised of a urethane series thermoplastic elastomer, ester series thermoplastic elastomer and amide series thermoplastic elastomer and at least one kind of an elastomer layer selected out of a group comprised of styrene series thermoplastic elastomer and olefin series thermoplastic elastomer through an adhesive polymer layer possessing properties of an elastomer. That is, since the present film can be stuck to a material such as a polyolefin series thin film or a fiber sheet with a simple thermal fusing method, heat sealing is performed in some places of a mouth part of a bag made of polypropylene with the elastomer laminated film under a condition where it is stretched 2-3 times.

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