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1. 发明专利

JPS5519552A METHOD OF MANUFACTURING PLASTIC SHEET REINFORCED WITH WIREENETTING 失效
公开(公告)号：JPS5519552A
公开(公告)日：1980-02-12
申请号：JP9265178
申请日：1978-07-31
申请人： MITSUI PETROCHEMICAL IND
发明人： OOKO TAKESHI , OFUNA YASUO
IPC分类号： B32B37/00 , B29C43/00 , B29C43/02 , B29C47/00 , B29C47/02 , B29C47/32 , B29C51/00 , B29C53/00 , B29C61/00 , B29C63/00 , B29C65/00 , B29C65/02 , B29C65/70 , B29K105/22 , B32B3/24 , B32B15/02 , B32B37/15
摘要： PURPOSE:To obtain the captioned sheet which is flexible and suitable for feed water stop, hothouse, etc. by forming a bank through feeding a fused thermoplastic resin sheet between a pair of pressure rolls and integrating it with a wire gauze fed thereinto. CONSTITUTION:A bank 3 is formed through feeding a thermoplastic resin sheet of polypropylene which is heated to fusion on an extruder 1 between a pair of pressure rolls 7,8. On the other hand, a wire gauze 4 is introduced on a guide roll 5, fed into the bank 3 and applied with resin evenly on both sides to obtain a plastic sheet 9 reinforced with wire-netting.

2. 发明专利

JPS5388884A METHOD FOR MAKING LAMINATE 失效
公开(公告)号：JPS5388884A
公开(公告)日：1978-08-04
申请号：JP298077
申请日：1977-01-17
申请人： MITSUI PETROCHEMICAL IND
发明人： MIYAZAKI YOSHITOMO , OFUNA YASUO , KATOU NOBORU
IPC分类号： C08L21/00 , B29C55/00 , B29C65/00 , B29C65/40 , B29C65/52 , B29C65/78 , B32B15/04 , B32B15/08 , B32B15/085 , C08L7/00 , C08L23/00 , C08L23/26 , C08L51/00 , C08L51/02 , C08L51/06 , C08L101/00 , C09J123/28 , C09J151/00

3. 发明专利

JPS56157792A HEAT STORING METHOD AND HEAT ACCUMULATOR 失效
公开(公告)号：JPS56157792A
公开(公告)日：1981-12-05
申请号：JP6203580
申请日：1980-05-09
申请人： MITSUI PETROCHEMICAL IND
发明人： NAGATA MICHIAKI , OFUNA YASUO
IPC分类号： F28F23/02 , F28D17/00 , F28D20/00
摘要： PURPOSE:To reduce the driving power of fluid by composing an approximately circular heat accumulator of the medium made of compound having a melting point of predetermined temperature range to be filled in a sheath and of the sheath having a softenining point of higher than 90 deg.C, thereby simplifying the facility structure. CONSTITUTION:A sheath 1 made of material having a softening point of higher than 90 deg.C is formed in spherical shape, a compound having a melting point in the temperature range of -20-90 deg.C such as, for example, calcium chloride or the like is filled as a medium 2 in the sheath 1, and a plug 3 is sealed in an inlet port, thereby obtaining a heat accumulating unit (a). A heat accumulator A is composed of many heat accumulating units (a) and has an inlet port 4 and an outlet port 5 for passing the fluid such as water. Since the shape of the unit (a) is formed in spherical shape or similar shape in this matter, the accumulator A has high strength and does not need partition plates or a trestle, thereby reducing the pressure loss of the fluid. Further, the driving force of the fluid is reduced to simplify the overall facility structure.

4. 发明专利

JPS53122942A LAMINATED HEATING UNIT 失效
公开(公告)号：JPS53122942A
公开(公告)日：1978-10-26
申请号：JP3767477
申请日：1977-04-04
申请人： MITSUI PETROCHEMICAL IND
发明人： OFUNA YASUO , MIYAZAKI YOSHITOMO , KOGA HITOSHI
IPC分类号： H05B3/14 , H05B3/12 , H05B3/20

5. 发明专利

JPS55109646A PROCESS FOR SECONDARY MOLDING 失效
公开(公告)号：JPS55109646A
公开(公告)日：1980-08-23
申请号：JP1672979
申请日：1979-02-17
申请人： MITSUI PETROCHEMICAL IND
发明人： HIEDA SHIYOUZOU , OFUNA YASUO
IPC分类号： B27N5/00
摘要： PURPOSE:To mold a board-shaped material such as Japanese type papery sheet, which is large- sized and unable to hold self-shape, efficiently in a short time and to improve the workability and productivity by molding it while being suspended. CONSTITUTION:The original material 1 such as papery sheet is attached to the securing jig 3 in the suspension process A to make itself suspended, passed through the heating furnace 4 by the belt conveyor 2, and is secondary-worked by the press metal mold 5 in the press molding process C. The board material is uniformly heated since it is fed to the furnace in a state of suspension, a heat loss is less since the work piece is continuously fed to the press molding process after heating, the molding can efficiently be accomplished in a short time on the whole.

6. 发明专利

JPS5573040A PROJECTION SCREEN 失效
公开(公告)号：JPS5573040A
公开(公告)日：1980-06-02
申请号：JP14604478
申请日：1978-11-28
申请人： MITSUI PETROCHEMICAL IND
发明人： AOKI HIDEYA , OFUNA YASUO
IPC分类号： G03B21/60
摘要： PURPOSE:To obtain the projection screen which is wide in a light diffusion range in both horizontal and vertical directions and is bright by forming minute and dense undulation patterns with crossing in the horizontal and vertical directions on the surface of the metal aluminum layer provided on a substrate. CONSTITUTION:A metal aluminum layer is provided on a substrate surface. The undulation patterns of about 0.2S-25S in surface roughness (JIS B0601) having directivity in the horizontal direction and the undulation patterns of about 0.01S- 10S in surface roughness having directivity in the vertical direction are formed on the aluminum layer to provide the projection screen. It is desirable that the abovementioned horizontal undulation patterns be formed by rolling and the vertical undulation patterns be formed by mechanical surface treatment (polishing, brushing, etc.). The effect will be higher if many more crater-form patterns are given by etching or the like in addition to the abovementioned undulation patterns.

7. 发明专利

JPS55143552A PROJECTION SCREEN 失效
公开(公告)号：JPS55143552A
公开(公告)日：1980-11-08
申请号：JP5084079
申请日：1979-04-26
申请人： MITSUI PETROCHEMICAL IND
发明人： AOKI HIDEYA , OFUNA YASUO
IPC分类号： G03B21/60 , G03B21/56
摘要： PURPOSE:To make adequate the vertical directivity characteristics of a projection screen and increase the reflection efficiency and effective luminance ratio, by providing grooves in the aluminum surface forming a projection screen at fine and dense intervals, forming grooves in specified shape, and setting the number of grooves within 10 -10 per 1cm . CONSTITUTION:An aluminum substrate forming a projection screen is made of a single aluminum plate or aluminum foil which is adhered to one side or both sides of a plastic plate such as polyethylene. To form grooves in the aluminum surface, for example, the aluminum surface may be brushed with a brush wheel having steel wires or brass wires measuring 0.1-0.3mm in diameter and 10-100mm in length planted on a rotary disc. By setting the average length L of these grooves to 1- 100mu, the ratio of L to width to 3-10, the depth of grooves to 0.2-25s, and the quantity of grooves per 1cm to 10 -109, the vertical directivity characteristics may be made adequate, and the reflection efficiency and effective luminance ratio may be increased.

8. 发明专利

JPS54137082A LAMINATE AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JPS54137082A
公开(公告)日：1979-10-24
申请号：JP4476478
申请日：1978-04-18
申请人： MITSUI PETROCHEMICAL IND
发明人： HIEDA SHIYOUZOU , OFUNA YASUO , KURITA TAKASHI , OOKO TAKESHI
IPC分类号： B32B5/18 , B32B5/24
摘要： PURPOSE:To manufacture a laminate having excellent heat insulation, soundproofing properties, and hand feeling, and useful as a heat-insulating material, packaging material, cusioning material, etc., by heating a layer of fiber blend containing a thermoplastic resin, and laminating the layer to a foamed thermoplastic resin layer. CONSTITUTION:The surface of a layer of fiber blend containing pref. 0.5-99.5 wt% of a thermoplastic resin such as polyolefin, is molten by heating above the melting point of the resin, and laminated to a foamed thermoplastic resin sheet, e.g. foamed polyethylene sheet, to obtain the objective laminate.

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