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公开(公告)号：JPH0382534A
公开(公告)日：1991-04-08
申请号：JP22062489
申请日：1989-08-28
Applicant: TORAY INDUSTRIES
Inventor： ONO MASAAKI , OTA TSUYOSHI , OKABE KAZUO
Abstract: PURPOSE:To prevent electrification by making electromagnetic properties and running properties favorable, by a method wherein layers A, B are laminated, an antistatic agent and inorganic matter particulates are contained in the layer B, a coating layer consisting mainly of shading particulates is formed on the surface, specific light transmittance, surface resistivity, surface kinetic coefficient of friction and mean roughness (Ra) on the center line of the surface are possessed and the Ra of the surface of the layer A is specified. CONSTITUTION:An antistatic agent and inorganic matter particulates are contained within a layer B and a coating layer consisting mainly of shading particulates is formed on the outside of the layer B of a composite polyester film obtained by laminating the layers A, B comprised both of polyester. Light transmittance, surface resistivity of the outside of the layer B, the kinetic coefficient of friction of the outside of the layer B, mean roughness (Ra) on the center line of the outside of the layer B and the Ra of the outside of the layer A are made respectively 60% or less, 10 OMEGA or less, 0.20 or less, 0.010-0.025 mum and smaller than 0.015 mum. Various surface active agents are used for the antistatic agent, the inorganic matter particulates in the layer B are for provision of a fine protrusion on the outside of the layer B and the shading particulates contained in the outside coating layer of the layer B are made into tinting particulates.
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公开(公告)号：JPH01316266A
公开(公告)日：1989-12-21
申请号：JP6684789
申请日：1989-03-16
Applicant: TORAY INDUSTRIES
Inventor： ONO MASAAKI , OTA TSUYOSHI , OKABE KAZUO
Abstract: PURPOSE:To obtain a composite polyester film superior in light shielding properties, antistatic properties, and ease of slipping by a method wherein a layer A and a layer B, both of which are made of polyester, are laminated with each other, light-screening fine particle, an antistatic agent, and inorganic fine particle are incorporated in the layer B, and the light transmittance, the surface resistivity and coefficient of dynamic friction of the outer surface of the layer B, and the center line average height of the outer surfaces of the layers A, B are specified. CONSTITUTION:In a composite polyester film, a layer A and a layer B, both of which are made of polyester, are laminated with each other. Light-screening fine particle, an antistatic agent, and inorganic fine particle are incorporated in the layer B. The light transmittance is 60% or less, the surface resistivity of the outer surface of the layer B is 10 OMEGA or less, and the coefficient of dynamic friction of the outer surface of the layer B is 0.20 or less. The center line average height Ra of the outer surface of the layer B is 0.010-0.025mum, and the Ra of the outer surface of the layer A is less than 0.015mum. Because one surface on the side of the layer A has smoothness and the other surface on the side of the layer B has ease of slipping, antistatic properties, and good light shielding properties, a video tape superior in electromagnetic characteristics and running properties and free from electrification can be produced only by providing a magnetic layer with high magnetic substance density on the side of the layer A.
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公开(公告)号：JPS6377693A
公开(公告)日：1988-04-07
申请号：JP21968386
申请日：1986-09-19
Applicant: TORAY INDUSTRIES
Inventor： TAKEDA YASUHIRO , OTA TSUYOSHI
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公开(公告)号：JP2001019783A
公开(公告)日：2001-01-23
申请号：JP19031499
申请日：1999-07-05
Applicant: TORAY INDUSTRIES
Inventor： SUMIYA TAKASHI , SATO KIMIO , OTA TSUYOSHI
Abstract: PROBLEM TO BE SOLVED: To obtain a high-performance polyester-based film in which various coating defects which occurs in coating process and provide a method for producing the film. SOLUTION: This method for producing a polyester-based film feathers applying an aqueous or water-disperse-based resin at =2 μm particle size and drying and stretching the resin. This film is produced by the above method.
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公开(公告)号：JPH091647A
公开(公告)日：1997-01-07
申请号：JP15804195
申请日：1995-06-23
Applicant: TORAY INDUSTRIES
Inventor： IKEGAMI TETSUO , KUBOTA KOICHI , OTA TSUYOSHI
Abstract: PURPOSE: To obtain a biaxially stretched resin film free from a permanently deformed wakame seaweed like flaw and excellent in flatness by specifying the difference between the max. and min. values of the thermal deformation ratio at specific temp. in the longitudinal direction of a biaxially stretched heat-treated resin film and setting the thickness and thickness irregularity of the resin film to specific relation. CONSTITUTION: In a biaxially stretched heat-treated resin film, the difference between the max. and min. values of the thermal deformation ratio at arbitrary temp. within a temp. range of 80200 deg.C in the longitudinal direction (film flow direction at a time of the formation of the film) of the film is set to 4×10 (1/ deg.C) or less and the thickness X and thickness irregularity Y(%) of the film are set so as to satisfy Y
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Patent Agency Ranking
公开(公告)号：JPH0382537A
公开(公告)日：1991-04-08
申请号：JP22062789
申请日：1989-08-28
Applicant: TORAY INDUSTRIES
Inventor： ONO MASAAKI , OTA TSUYOSHI , OKABE KAZUO
Abstract: PURPOSE:To prevent electrification by making electromagnetic properties and running properties favorable, by a method wherein layers A, B are laminated, antistatic agent is contained within the layer B, a coating layer consisting mainly of shading particulates and a lubricant is formed on the surface, specific light transmittance, surface resistivity, surface kinetic coefficient of friction and mean roughness (Ra) on the center line of the surface are possessed and the Ra of the surface of the layer A is specified. CONSTITUTION:The title film is of a composite polyester film obtained by laminating layers A, B comprised both of polyester, an antistatic agent is contained within the layer B and a coating layer consisting mainly of shading particulates and a lubricant is formed on the outside of the layer B. Light transmittance, surface resistivity of the outside of the layer B, the kinetic coefficient of friction of the outside of the layer B, mean roughness (Ra) on the center line of the outside of the layer B and the Ra of the outside of the layer A are made respectively 60% or less, 10 OMEGA or less, 0.20 or less, 0.010-0.025 mum and smaller than 0.015 mum. Various surface active agents are used for the antistatic agent, the shading particulates are made into tinting particulates and an organic compound lubricant or an inorganic compound particulates are used for the libticant.
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公开(公告)号：JPH0382536A
公开(公告)日：1991-04-08
申请号：JP22062689
申请日：1989-08-28
Applicant: TORAY INDUSTRIES
Inventor： ONO MASAAKI , OTA TSUYOSHI , OKABE KAZUO
Abstract: PURPOSE:To prevent electrification by making electromagnetic properties and running properties favorable, by a method wherein, layers A, B are laminated, inorganic matter particulates are contained within the layer B, a coating layer consisting mainly of shading particulates and an antistatic agent is formed on the surface, specific light transmittance, surface resistivity, surface kinetic coefficient of friction and mean roughness (Ra) on the center line of the surface are possessed and the Ra of the surface of the layer A is specified. CONSTITUTION:The title film is of a composite polyester film obtained by laminating layers A, B comprised both of polyester, shading particulates are contained within the layer B and a coating layer consisting mainly of an antistatic agent and lubricant if formed on the outside of the layer B. Light transmittance, surface resistivity of the outside of the layer B, the kinetic coefficient of the outside of the layer B, mean roughness (Ra) on the center line of the outside of the layer B and the Ra of the outside of the layer A are made respectively 60% or less, 10 OMEGA or less, 0.20 or less, 0.010-0.025 mum and smaller than 0.015 mum. The inorganic matter particulates are for provision of a fine protrusion on the outside of the layer B, the shading particulates are made into tinting particulates and various surface active agents are used for the antistatic agent.
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公开(公告)号：JPH0382535A
公开(公告)日：1991-04-08
申请号：JP22062589
申请日：1989-08-28
Applicant: TORAY INDUSTRIES
Inventor： ONO MASAAKI , OTA TSUYOSHI , OKABE KAZUO
Abstract: PURPOSE:To prevent electrification by making electromagnetic properties and running properties favorable, by a method wherein layers A, B are laminated, shading particulates are contained within the layer B, a coating layer consisting mainly of an antistatic agent and lubricant is formed on the surface, specific light transmittance, surface resistivity, surface kinetic coefficient of friction and mean roughness (Ra) the center line of the surface are possessed and the Ra of the surface of the layer A is specified. CONSTITUTION:The title film is of a composite polyester film obtained by laminating layers A, B comprised both of polyester, shading particulates are contained within the layer B and a coating layer consisting mainly of an antistatic agent and lubricant if formed on the outside of the layer B. Light transmittance, surface resistivity of the outside of the layer B, the kinetic coefficient of friction of the outside of the layer B, mean roughness (Ra) on the center line of the outside of the layer B and the Ra of the outside of the layer A are made respectively 60% or lens, 10 OMEGA or less, 0.20 or less, 0.010-0.025 mum and smaller than 0.015 mum. The shading particulates are of tinting particulates, various surface active agents are used for the antistatic agent and an organic compound lubricant or inorganic compound particulates are used for the lubricant.
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公开(公告)号：JPH0382533A
公开(公告)日：1991-04-08
申请号：JP22062389
申请日：1989-08-28
Applicant: TORAY INDUSTRIES
Inventor： ONO MASAAKI , OTA TSUYOSHI , OKABE KAZUO
Abstract: PURPOSE:To prevent electrification by making electromagnetic properties and running properties favorable, by a method wherein layers A, B are laminated, shading particulates and inorganic matter particulates are contained within the layer B, a coating layer consisting mainly of an antistatic agent is formed on the surface, specific light transmittance, surface resistivity, kinetic coefficient of friction and mean rough ness (Ra) on the center line of the surface are possessed and the Ra of the surface of the layer A is specified. CONSTITUTION:Shading particulates and inorganic matter particulates are contained within a layer B and a coating layer consisting mainly of an antistatic agent is formed on the outside of the layer B of a composite polyester film obtained by laminating the layers A, B comprised both of polyester. Light transmittance, surface resistivity of the outside of the layer B, the kinetic coefficient of friction of the outside of the layer B, mean roughness (Ra) on the center line of the outside of the layer B and the Ra of the outside of the layer A are made respectively 60% or less, 10 OMEGA or less, 0.20 or less, 0.010-0.025 mum and smaller than 0.015 mum. The shading particulates are made into tinting particulates, the inorganic matter particulates are for provision of tine protrusions on the outside of the layer B and various surface active agents are used for the antistatic agent.
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公开(公告)号：JPH0382532A
公开(公告)日：1991-04-08
申请号：JP22062289
申请日：1989-08-28
Applicant: TORAY INDUSTRIES
Inventor： ONO MASAAKI , OTA TSUYOSHI , OKABE KAZUO
Abstract: PURPOSE:To prevent electrification by making electromagnetic properties and running properties favorable, by a method wherein layers A, B are laminated, shading particulates and an antistatic agent are contained within the layer B, a coating layer consisting mainly of a lubricant is formed on the surface, specific light transmission, surface resistivity, surface kinetic coefficient of friction and mean roughness (Ra) on the center line of the surface are possesed and the Ra of the surface of the layer A is specified. CONSTITUTION:Shading particulates and an antistatic agent are contained within a layer B and a coating layer consisting mainly of a lubricant is formed on the outside of the layer B of a composite polyester film obtained by laminat ing the layers A, B comprised both of polyester. Light transmission, surface resisistivity of the outside of the layer B, the kinetic coefficient of friction of the outside of the layer B, mean roughness (Ra) on the center line of the outside of the layer B and the Ra of the outside of the layer A are made respec tively 60% or less, 10 OMEGA or less, 0.20 or less, 0.010-0.025 mum and smaller than 0.015 mum. The shading particulates are made into tinting particulates, various surface active agents are used for the antistatic agent and an organic compound lubricant or an inorganic compound particulates are used for the lubricant.
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