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1. 发明专利

IT8919741D0 未知
公开(公告)号：IT8919741D0
公开(公告)日：1989-03-13
申请号：IT1974189
申请日：1989-03-13
申请人： TOYO BOSEKI
发明人： OHNO MAKOTO , YAGI AKIRA , HOSOKAWA AKIRA , SAKURAI HIDEHIKO , ISODA HIDEO
IPC分类号： A61M20060101 , B01D20060101

2. 发明专利

IT1228361B Filter fibre for removing leucocyte 未知
公开(公告)号：IT1228361B
公开(公告)日：1991-06-14
申请号：IT1974189
申请日：1989-03-13
申请人： TOYO BOSEKI
发明人： OHNO MAKOTO , YAGI AKIRA , HOSOKAWA AKIRA , SAKURAI HIDEHIKO , ISODA HIDEO
IPC分类号： A61M20060101 , B01D20060101 , A61M , B01D
摘要： Occupying rate of thin dia yarn area is not more than 25%. Where thin yarn is thinner than 90% of central value distribution in yarn radius of ultra thin fibre, and DHT is not more than 6 microns and DHL is not less than 2.5um in formulae. (I) and (II), where DHT -- average apparent hydraulic radius (microns) consisted by whole fibre DHL = average apparent hydraulic ardius (microns) in thin diameter yarn areaRho =fibre density (g/cm3) (alpha) R : filling density of fibre(g.cm3) alpha L = average dia of yarn(um) (alpha) L = average dia of yarn(um) in thin yarn area thiner 90% than central value of distribution.

3. 发明专利

JPH0247153A RENDERING POLYESTER FILM FLAME-RETARDING 失效
公开(公告)号：JPH0247153A
公开(公告)日：1990-02-16
申请号：JP19859188
申请日：1988-08-09
申请人： TOYO BOSEKI
发明人： YAMAGUCHI JUJI , HOSOKAWA AKIRA
IPC分类号： C08J7/00 , C08L67/00 , C08L67/02
摘要： PURPOSE:To make the production in a small lot possible and to improve the flame retardancy and transparency of the obtained film without detriment to its properties by applying a specified flame retardant to a polyester film by high-temperature impregnation. CONSTITUTION:A polyester film desirably comprising polyethylene terephthalate or a polyester mainly consisting of repeating ethylene terephthalate units, molecularly oriented at least unidirectionally and heat-set is impregnated with a flame retardant of an MW of 100-888 (tricresyl phosphate) which is liquefied at the impregnation temperature or dissolved in a high-b.p. organic solvent at 120-220 deg.C, desirably, 130-180 deg.C for 20sec-10min.

4. 发明专利

JPH0245538A METHOD FOR TREATING SURFACE OF MOLDED POLYESTER BODY 失效
公开(公告)号：JPH0245538A
公开(公告)日：1990-02-15
申请号：JP19762588
申请日：1988-08-08
申请人： TOYO BOSEKI
发明人： HOSOKAWA AKIRA , YAMAGUCHI JUJI
IPC分类号： C08J7/02
摘要： PURPOSE:To improve transparency and adhesion of the subject molded body by applying an organic solvent having affinity for a polyester to the surface of a molded polyester product and subjecting the resultant molded product to etching treatment with an alkaline solution in a high concentration. CONSTITUTION:An organic solvent, such as preferably ethylene glycol, in an amount within the range of 0.1-1.0g/cm is applied to the surface of a molded polyester body, such as polyethylene terephthalate. The resultant molded body is then subjected to etching treatment with an alkaline solution diluted with water, ethylene glycol, etc., so as to provide 20-60wt.% concentration (preferably at 80-130 deg.C for about 10-300sec). After the treatment, the molded product is washed with cold or hot water or further neutralized with a dilute aqueous solution of an acid to afford the objective molded body.

5. 发明专利

JPH01174534A POLYESTER FILM OF HIGH DIMENSIONAL STABILITY AND PRODUCTION THEREOF 失效
公开(公告)号：JPH01174534A
公开(公告)日：1989-07-11
申请号：JP33500387
申请日：1987-12-28
申请人： TOYO BOSEKI
发明人： HOSOKAWA AKIRA , YAMAGUCHI JUJI
IPC分类号： C08J5/18 , C08J7/02 , H05K1/03
摘要： PURPOSE:To provide the subject polyester film useful as a substrate in flexible printed circuits etc., having a specified hot-dry shrinkage rate and the content of oligomer at or below a specified value. CONSTITUTION:A polyester film produced by the conventional process is treated with a water-soluble or water-dispersible organic solvent pref. at 120-220 deg.C to carry out heat treatment and oligomer elimination through its dissolution, thus obtaining the objective film with a hot-dry shrinkage after heating at 150 deg.C for 30min under a tensionless state of

6. 发明专利

JPH01232972A BLOOD FILTER 失效
公开(公告)号：JPH01232972A
公开(公告)日：1989-09-18
申请号：JP5917488
申请日：1988-03-12
申请人： TOYO BOSEKI
发明人： HOSOKAWA AKIRA , YAGI AKIRA , ISODA HIDEO
IPC分类号： A61K35/14 , A61K35/18 , A61M1/22 , A61M1/34 , B01D39/16
摘要： PURPOSE:To reduce the damage of blood corpuscles and to make a leucocyte removing rate and an erythrocyte recovery rate excellent, by constituting a filter of nonwoven fabric using a synthetic fiber having predetermined monofilament fineness and a profile cross-section whose surface area increase rate is a specific value or more. CONSTITUTION:The fineness of the monofilament of a synthetic fiber constituting a blood filter is set to 0.25 denier or less, pref., to 0.1 denier or less and the cross-section of the monofilament has an odd-shape and the surface area increase ratio F=l/(4pis)1/2(wherein l is the average outer peripheral length of the monofilament cross-section and s is the average cross-section of the monofilament cross-section) is 1.15 or more. This synthetic fiber is in an opened state. Since the synthetic fiber constituting the blood filter has the profile cross-section, an increasing surface area increase ratio is 1.15 or more, pref., 1.30 or more as compared with a round cross-sectional fiber and the surface area increase ratio of 1.15 or less is not pref. because the enhancement of the removal rate of a leucocyte is less as compared with the round cross-sectional fiber. By this method, even when the diameter of a fiber is not made too small and a filling rate is not enhanced, the contact surface area of the fiber with a leucocyte is increased, and a leucocyte removing rate and an erythrocyte recovery rate are made excellent.

7. 发明专利

JPH0221917A BLOOD FILTER AND PRODUCTION THEREOF 失效
公开(公告)号：JPH0221917A
公开(公告)日：1990-01-24
申请号：JP17136288
申请日：1988-07-08
申请人： TOYO BOSEKI
发明人： ONO HITOSHI , YAGI AKIRA , HOSOKAWA AKIRA
IPC分类号： B01D69/06 , A61M1/02 , B01D39/16 , B01D71/48 , D06M11/00 , D06M101/00
摘要： PURPOSE:To obtain a blood filter having superior hydrophilic property, hardly damaging blood corpuscles and also having superior compatibility with blood and superior ability to remove white corpuscles by packing synthetic fibers having a specified average diameter and not degenerating blood at a specified density and by rendering hydrophilic property by solvation. CONSTITUTION:A filter medium consisting of synthetic fibers having =85 deg.C to render hydrophilic property to the filter medium by solvation with the water. The solvent is then removed and the hydrophilic filter medium is dried and packed at 0.05-0.60g/cm packing density to obtain a filter for removing white corpuscles.

8. 发明专利

JPH01178529A SURFACE TREATMENT OF POLYESTER 失效
公开(公告)号：JPH01178529A
公开(公告)日：1989-07-14
申请号：JP33558387
申请日：1987-12-29
申请人： TOYO BOSEKI
发明人： YAMAGUCHI JUJI , HOSOKAWA AKIRA
IPC分类号： C08J7/02
摘要： PURPOSE:To make it possible to etch satisfactorily the surface of a polyester both in shallow etching and in deep etching, by etching said surface with an alkali solution in a high-boiling organic solvent of an excellent affinity for the polyester. CONSTITUTION:The surface of a polyester is etched with an alkali solution in a high-boiling organic solvent of an excellent affinity for the polyester. According to this process, the entire surface can be uniformly etched because the surface of the polyester can be increased in wettability with the etching solution, and the polyester surface is brought into a swollen state by the action of the organic solvent. Therefore, when shallow etching is desired, a unform and clean etched surface can be obtained because no unevenness in etching, etc. are caused. When a deep etching is applied for the purpose of improving writability etc., the purpose can be fully accomplished by using a decreased amount of an alkali.

9. 发明专利

JP2906409B2 失效
公开(公告)号：JP2906409B2
公开(公告)日：1999-06-21
申请号：JP5917488
申请日：1988-03-12
申请人： TOYO BOSEKI KK
发明人： HOSOKAWA AKIRA , YAGI AKIRA , ISODA HIDEO
IPC分类号： A61K35/14 , A61K35/18 , A61M1/22 , A61M1/34 , B01D39/16

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