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1. 发明专利

JPH1142028A WATER TANK MADE OF PLASTIC 失效
公开(公告)号：JPH1142028A
公开(公告)日：1999-02-16
申请号：JP20332397
申请日：1997-07-29
申请人： ASAHI CHEMICAL IND
发明人： MIYAUCHI MASAHIRO
IPC分类号： A01K63/00
摘要： PROBLEM TO BE SOLVED: To provide the subject water tank, comprising a transparent thermoplastic resin and hardly fouling and flawing by covering the surface thereof with a surface layer containing an optical semiconductor. SOLUTION: This water tank comprises a transparent thermoplastic resin and is obtained by covering the surface thereof with a surface layer containing an optical semiconductor. An acrylic resin excellent in transparency or a polycarbonate resin excellent in impact resistance or flame retardance is preferred as the transparent thermoplastic resin. Furthermore, anatase type titanium oxide and a silicone-based resin are preferably used as the surface layer containing the optical semiconductor.

2. 发明专利

JPH1017759A WEATHER RESISTANT POLYCARBONATE SHEET AND ITS PRODUCTION 失效
公开(公告)号：JPH1017759A
公开(公告)日：1998-01-20
申请号：JP17389696
申请日：1996-07-03
申请人： ASAHI CHEMICAL IND
发明人： MIYAUCHI MASAHIRO , YATANI HIROSHI
IPC分类号： B29C48/305 , B29D7/01 , B29K69/00 , B29L7/00 , C08G64/06 , C08G64/20 , C08G64/30 , C08K5/16 , C08K5/3475 , C08K5/3492 , C08L69/00 , B29C47/14
摘要： PROBLEM TO BE SOLVED: To produce a weather resistant polycarbonate sheet capable of maintaining the weather resistant properties even after secondary processing such as a thermoforming and preventing an ultraviolet absorber from being lost during forming the sheet and to provide a method for producing the sheet. SOLUTION: This weather resistant polycarbonate sheet is composed of a polycarbonate having a little amount of different bond and blended with 0.01-20wt.% ultraviolet absorber. The method for producing the weather resistant polycarbonate sheet comprises an extrusion of the raw composition for the sheet comprising the polycarbonate having a little amount of the different bond from a sheet-forming machine while adjusting the temperature of the composition to 240-290 deg.C.

3. 发明专利

JPH1139911A FRONT FACE PLATE OF VENDING MACHINE 失效
公开(公告)号：JPH1139911A
公开(公告)日：1999-02-12
申请号：JP18938197
申请日：1997-07-15
申请人： ASAHI CHEMICAL IND
发明人： MIYAUCHI MASAHIRO
IPC分类号： G07F9/10 , C01G23/047 , F21V1/22
摘要： PROBLEM TO BE SOLVED: To impart a antistatic performance to a transparent thermoplastic resin plate so that dirts hardly stick thereto without cleaning with antistatic treatment spray by using the transparent thermoplastic resin plate with one face or both faces coated with surface layers containing a photo-semiconductors for a vending machine front face plate. SOLUTION: A transparent thermoplastic resin plate 1 to 5 mm thick, for example, an acrylic resin plate is used for a front face plate. Metal oxide, such as titanium oxide, tin oxide, zinc oxide, iron trioxide, or bismuth trioxide is cited as a photo-semiconductor coating the surface of the resin plate. The surface layer is formed 0.1 to 100 μm thick by applying a mixture of, for example, anatase titanium oxide and silicone resin to one face or both faces of the resin plate and by heat treating. Thereby, the surface resistivity of the front face plate becomes low so as to obtain excellent antistatic performance, and dirts hardly stick thereto.

4. 发明专利

JPH1128790A THERMOPLASTIC RESIN SHEET FOR ULTRAVIOLET RAY SHIELDING 失效
公开(公告)号：JPH1128790A
公开(公告)日：1999-02-02
申请号：JP18348997
申请日：1997-07-09
申请人： ASAHI CHEMICAL IND
发明人： MIYAUCHI MASAHIRO
IPC分类号： B05D7/24 , B32B27/18 , B32B27/30 , B32B27/36
摘要： PROBLEM TO BE SOLVED: To improve weatherability of a thermoplastic resin sheet without blending great amount of ultraviolet ray absorbent by constructing one side, or both sides, of the thermoplastic resin sheet of a surface layer containing optical semiconductor. SOLUTION: A surface layer containing optical semiconductor is composed of a thermoplastic resin sheet for ultraviolet ray shielding, which contains anatase type titanium oxide, and silica, or silicone, where at least a part is silanolated. And the thermoplastic resin sheet is the thermoplastic resin sheet for ultraviolet ray shielding composed of acrylic resin sheet, and the thermoplastic resin sheet is the thermoplastic resin sheet for ultraviolet ray shielding composed of polycarbonate resin sheet. The optical semiconductor is composed of metallic oxide such as titanium oxide, zinc oxide, iron trioxide, bismuth trioxide. Titanium oxide is specially preferable for its chemical stability. Titanium oxide includes an anatase type and a rutile type, of which anatase titanium oxide is preferable, because anatase titanium oxide is easily obtained in sol.

5. 发明专利

JPH10138436A POLYCARBONATE LAMINATE SHEET 失效
公开(公告)号：JPH10138436A
公开(公告)日：1998-05-26
申请号：JP30016496
申请日：1996-11-12
申请人： ASAHI CHEMICAL IND
发明人： MIYAUCHI MASAHIRO
IPC分类号： B32B27/18 , B32B27/36
摘要： PROBLEM TO BE SOLVED: To provide a polycarbonate laminate sheet wherein there is no unstable phenomenon of interlaminar flow even when a thickness of a coating polycarbonate layer is thin, the laminate interface is smooth, the appearance is excellent, and weatherability is excellent. SOLUTION: In a polycarbonate laminate sheet, a coat layer formed of a polycarbonate composition having 2-20wt.% of ultraviolet absorber and having a thickness of 10-200μm is provided on one face or both faces of a substrate formed of a polycarbonate having 500-3,000 Pa.s of melting viscosity at a shear rate of 100cm at 280 deg.C. A difference in the melting viscosity between the polycarbonate of the substrate and the coat layer composition is 10-50 Pa.s.

6. 发明专利

JPH10138435A WEATHER RESISTANCE IMPROVED POLYCARBONATE LAMINATED SHEET 失效
公开(公告)号：JPH10138435A
公开(公告)日：1998-05-26
申请号：JP29668996
申请日：1996-11-08
申请人： ASAHI CHEMICAL IND
发明人： MIYAUCHI MASAHIRO
IPC分类号： B32B27/18 , B32B27/36 , C08K5/13 , C08K5/3495 , C08K5/53 , C08L69/00
摘要： PROBLEM TO BE SOLVED: To improve weather resistance and thermal stability of a polycarbonate sheet to prevent initial coloring and improve the glossiness of the surface by a method wherein the surface of polycarbonate is coated with a coating layer, consisting of polycarbonate, in which specified amounts of three or four kinds of specified compounds are combined and blended. SOLUTION: The coated sheet of polycarbonate is manufactured by coating one side or both sides of a polycarbonate substrate with a coating layer, consisting of a polycarbonate composition containing 0.1-30wt.% of alkylidenbis (benzotriazole), represented by a formula I, 0.01-1wt.% of phenole based compound, represented by a formula II and/or formula III, and 0.001-1wt.% of phosphorus based compound, represented by a formula IV, an having the thickness of 10-100μm. In the formula I, R1 represents H and alkyl group, R2 represents alkyl group or aralkyl group and X represents H, alkyl group and the like. In the formula II and/or formula III, R1 , R2 represents 1-4C alkyl group, R3 represents 1-30C alkyl group of C and (n) represents 1-10. In the formula IV, R1 , R2 represents 1-4C alkyl group of C.

7. 发明专利

JPH1017665A POLYCARBONATE SHEET AND ITS PREPARATION 失效
公开(公告)号：JPH1017665A
公开(公告)日：1998-01-20
申请号：JP17389596
申请日：1996-07-03
申请人： ASAHI CHEMICAL IND
发明人： MIYAUCHI MASAHIRO , YATANI HIROSHI
IPC分类号： B29C47/88 , B29C48/305 , B29D7/01 , B29K69/00 , B29L7/00 , C08G64/06 , C08G64/20 , C08G64/30 , B29C47/14
摘要： PROBLEM TO BE SOLVED: To provide a polycarbonate sheet having low optical strain and good appearance and a process for preparing the same. SOLUTION: This invention provides a polycarbonate sheet made of a polycarbonate having a small amount of bonds of different types and having an optical strain δ of 0.1 or below and a process for producing the same, comprising extruding a sheet-forming material comprising a polycarbonate having a small amount of bonds of different types with a sheet extruding machine and forming the extruded by cooling and solidification with polishing rolls into a sheet.

8. 发明专利

JPH09279002A POLYCARBONATE RESIN COMPOSITION FOR IMAGE PROJECTING EQUIPMENT AND MOLDED PRODUCT THEREOF 失效
公开(公告)号：JPH09279002A
公开(公告)日：1997-10-28
申请号：JP11112496
申请日：1996-04-09
申请人： ASAHI CHEMICAL IND
发明人： MIYAUCHI MASAHIRO , HOSHINA SHUJI
IPC分类号： C08K3/00 , C08K5/00 , C08L69/00 , H04N5/72
摘要： PROBLEM TO BE SOLVED: To provide a material reduced in a loss of a quantity of light due to scattering and diffusion, effectively transmitting light in the wavelength region of 450-650nm, giving a high picture contrast, giving unitariness between the housing part and the picture display part when power supply of the equipment is shut off and having high heat resistance. SOLUTION: This composition comprises a polycarbonate resin and at least one compound having light-absorbing characteristics such that the light absorbance in a wavelength region of 250-300nm is 0.01 or above and having a total light transmittance of 50-90% and a spectral light transmittance of 50-85% to light in the visible region at wavelength of 450-650nm when measured in the form of a flat sheet. The obtained composition and molding are reduced in a loss of a quantity of light due to light scattering and diffusion, can transmit effectively visible light, can give a high picture contrast, can give unitariness among the housing part and the picture display part, have improved heat resistance as compared with the conventional, and are very useful as materials placed in front of the picture display part of an image projecting equipment.

9. 发明专利

JPH09187906A LAMINATE 失效
公开(公告)号：JPH09187906A
公开(公告)日：1997-07-22
申请号：JP19165196
申请日：1996-07-03
申请人： ASAHI CHEMICAL IND
发明人： MIYAUCHI MASAHIRO
IPC分类号： B32B27/18 , B32B27/30 , B32B27/36
摘要： PROBLEM TO BE SOLVED: To obtain a polycarbonate resin laminate simultaneously improved in weather resistance and coloring and transparency of a coating layer. SOLUTION: This laminate is constituted so that a thermoplastic resin, whose thickness is 10-150μm, coats the surface of a polycarbonate resin molding. In this case, the thermoplastic resin is a polycarbonate resin laminate including a specific ultraviolet rays absorbent formed of a hydroxyphenyltriazine based compound and satisfying the thickness of the coating layer thermoplastic resin layer(μm) × the concentration of ultraviolet rays absorbent in the coating layer(wt.%)=20-300. The coating layer thermoplastic resin is a polycarbonate resin or an acrylic resin. Then, the coating layer thermoplastic resin and the base material part polycarbonate resin have a mixed layer biting into each other between the coating layer thermoplastic resin of the laminate and the base material part polycarbonate resin molding. The thickness of the mixed layer is 0.1-2μm and the largest amplitude of a corrugation is 10μm or less per a 5mm of width.

10. 发明专利

JPH09174783A SURFACE HARDENED POLYCARBONATE RESIN PLATE 失效
公开(公告)号：JPH09174783A
公开(公告)日：1997-07-08
申请号：JP35113995
申请日：1995-12-27
申请人： ASAHI CHEMICAL IND
发明人： MIYAUCHI MASAHIRO
IPC分类号： B32B5/14 , B32B27/18 , B32B27/36 , C08J7/04
摘要： PROBLEM TO BE SOLVED: To attain improvements in surface hardening and in coloring and deterioration due to ultraviolet exposure concurrently. SOLUTION: A surface hardened plate prepared by laminating a surface hardening layer or a primer layer and then the surface hardening layer sequentially on an ultraviolet absorbent containing polycarbonate resin plate. The surface hardening layer is constituted of organopolysiloxane resin and the ultraviolet absorbent containing polycarbonate resin plate is a laminated plate of polycarbonate resin prepared by covering the surface of a polycarbonate resin plate with a polycarbonate resin layer compounded with an ultraviolet absorbent of 1-20wt.%. Between the ultraviolet absorbent containing polycarbonate resin layer being the covering layer of the laminated plate of polycarbonate resin and the polycarbonate resin plate being a base part, a mixed layer wherein the ultraviolet absorbent containing polycarbonate resin of the covering layer and the polycarbonate resin of the base part bite in each other is formed and the thickness of the mixed layer is made 0.1-2μm, while the maximum amplitude of waviness thereof is made 10μm or below per a width 5mm.

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