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1. 发明专利

JPH02191510A SLUDGE SCRAPER 失效
公开(公告)号：JPH02191510A
公开(公告)日：1990-07-27
申请号：JP847789
申请日：1989-01-19
申请人： ATAKA CONSTRUCTION & ENG , NIPPON PETROCHEMICALS CO LTD
发明人： SAWA YOSHIO , KUROISHI TETSUJIRO , JINBO KEIJI
IPC分类号： B01D21/18
摘要： PURPOSE:To improve the corrosion resistivity and the wear resistivity of rail by mounting the rail made of synthetic resin which has a small friction coefft. and is excellent in wear resistivity on the slid surface, which is brought into contact with flight plates, of the track rails to guide the flight plates disposed in a settling pool. CONSTITUTION:The flight plates 12 circulated through the upper and lower part of the settling pool 1 with an endless chain 7 scrapes the sediments settled in the settling pool 1 in one direction. The synthetic resin rail 16 consisting of the resin having a small friction coefft. and excellent in wear resistivity, such as extra-macromolecular PE, is detachably mounted at least on the slide- contact surface, which is brought into contact with the flight plates 12, of the track rails 9-11 to guide the flight plates 12. As a result, this method improves the corrosion and the wear resistivity of the rails laid in the settling pool, reduces the exchanging frequency of shoes 14, 15 as the sliding frictional resistance between the flight plates circulatingly moved and the track rails is small, and sharply lighten the energy of power, such as the driving power.

2. 发明专利

JPH0471829A METHOD FOR FORMING ULTRA-HIGH-MOLECULAR-WEIGHT POLYETHYLENE 失效
公开(公告)号：JPH0471829A
公开(公告)日：1992-03-06
申请号：JP18434890
申请日：1990-07-13
申请人： NIPPON PETROCHEMICALS CO LTD
发明人： NOGUCHI YASUO , KUROISHI TETSUJIRO
IPC分类号： B29C69/00 , B29K23/00 , B29L22/00 , B29L23/00
摘要： PURPOSE:To easily manufacture homogeneous formed body and multikind and small quantity formed item, the mechanical strength of which is satisfactory even when it is processed into a formed body having the wall thickness ranging from comparatively thin to thick, with simple facilities by a method wherein a plurality of layers of ultra-high-molecular-weight polyester film or sheet are laminated to one another and then melted in vacuum under the condition that its thermal expansion is controlled so as to be densified. CONSTITUTION:Ultra-high-molecular-weight polyethylene film, which is wound round a steel heat resistant core 2 having teflon-coated surface in the form of a roll is set in a vacuum container 4 after being fixed with glass cloth 3, which is wound on said film. After a vacuum pump 5, a cooler 6, a heater 7, a vacuum gauge 8 and a thermometer 9 are connected to the vacuum container 4, the interior of the vacuum container 4 is held at 400 mm Hg or less absolute pressure. After that, the resultant film is densified by heating under the state just mentioned above. After being cooled down under vacuum state, the obtained ultra-high-molecular-weight polyethylene cylinder 1 is taken out of the vacuum container 4 together with the heat resistant core 2. After that, the glass cloth 3 is removed and the heat resistant core 2 is drawn out so as to obtain the ultra-high-molecular-weight polyethylene cylinder 1.

3. 发明专利

JPS63236641A LAMINATED BOARD FOR HIGH-FREQUENCY CIRCUIT 失效
公开(公告)号：JPS63236641A
公开(公告)日：1988-10-03
申请号：JP7030587
申请日：1987-03-26
申请人： NIPPON PETROCHEMICALS CO LTD , CHUKOH CHEM IND
发明人： YOKOYAMA SHIGEKI , KUROISHI TETSUJIRO , SHINKAWA TAKEO , NAGASE MASAKATSU
IPC分类号： B32B15/14 , B32B15/08 , B32B15/085 , B32B17/04 , H05K1/03

4. 发明专利

JPH0771658A PIPE RECEIVING BASE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0771658A
公开(公告)日：1995-03-17
申请号：JP23717993
申请日：1993-08-31
申请人： NIPPON PETROCHEMICALS CO LTD , NISHIYAMA KK
发明人： KOBAYASHI KATSUOKI , KUROISHI TETSUJIRO , IDEGAMI HIDETO
IPC分类号： F16L3/18
摘要： PURPOSE:To provide a pipe receiving base and its manufacturing method excellent in slidability with a pipe further with a low cost without generating also interlayer separation by facilitating heat working. CONSTITUTION:In a receiving base 1 provided on a frame to support a pipe, a film or sheet 2 of superhigh molecular weight polyethylene is arranged through adhesive resin 3 in an inside surface coming into contact with the pipe in the receiving base 1.

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