RELEASE FILM AND ADHESIVE FILM USING IT
    7.
    发明专利

    公开(公告)号:JP2006346899A

    公开(公告)日:2006-12-28

    申请号:JP2005172830

    申请日:2005-06-13

    Abstract: PROBLEM TO BE SOLVED: To provide a release film which makes it possible to manufacture an adhesive film more accurately controlled in its thickness than before by a method for forming the adhesive film by coating the mold release layer of the release film with a coating agent and solidifying the coating layer of the release film, and the adhesive film formed using the release film. SOLUTION: The base material of the release film is formed of a porous polyester film with a thickness irregularity of 5% or below and a void ratio of 5-50 vol.%. Further, the radiation absorbance of the polyester film is preferably set to 85% or below of a non-porous state by making the polyester film porous. Furthermore, the polyester film preferably contains 0.2-20 vol.% of an inorganic filler. The adhesive film is formed by coating the mold release layer of the release film with the coating agent and subsequently solidifying the coating layer on the release film. COPYRIGHT: (C)2007,JPO&INPIT

    DIELECTRIC FOR SUBSTRATE
    8.
    发明专利

    公开(公告)号:JP2000269618A

    公开(公告)日:2000-09-29

    申请号:JP6956099

    申请日:1999-03-16

    Abstract: PROBLEM TO BE SOLVED: To provide a dielectric for substrate, which is superior in form maintaining property even if it is thinned, whose permittivity in microwave band where a frequency is not less than 1 GHz is low to be less than 2.0 and superior in an electrical characteristics as a substrate for microwaves. SOLUTION: A dielectric for substrate is formed of resin component where micro hollow bodies are dispersed in synthetic resin. The volume fraction ϕ2 of the micro hollow body in resin composition satisfies the expression A

    9.
    发明专利
    失效

    公开(公告)号:JPH05232301A

    公开(公告)日:1993-09-10

    申请号:JP3342092

    申请日:1992-02-20

    Abstract: PURPOSE:To prevent increase in surface roughness and decrease in linear transmittance for light by coating at least one surface of a base body with a coating material having lower solubility to water and higher hardness compared to the base body. CONSTITUTION:This optical member consists of a base body and a coating material. The base body consists of polycrystalline barium fluoride sintered body and the coating material is applied at least one surface of the base body. This coating material consists of such a material having lower solubility with water and higher hardness compared to the base body. In this case, it is preferable that the coating material consists of either magnesium fluoride or calcium fluoride. More preferably, the coating material has 0.1-10mum thickness. This optical thin film is formed by usual vacuum vapor deposition or sputtering method, and can be made dense with stable refractive index.

    LIGHT-TRANSMISSIVE BARIUM FLUORIDE SINTERED COMPACT AND ITS PRODUCTION

    公开(公告)号:JPH0624828A

    公开(公告)日:1994-02-01

    申请号:JP19783592

    申请日:1992-07-01

    Abstract: PURPOSE:To obtain a polycrystal light-transmissive BaF2 sintered compact having high strength, purity and density and no cleavage by hot-pressing a high-purity fine BaF2 powder in vacuum to highly densify the powder and then subjecting the powder to HIP. CONSTITUTION:A barium fluoride powder having >=98.5% purity and pressure and densified to >=95% of the theoretical density ratio. The powder is then subjected to HIP at 600-1250 deg.C and >=400kg/cm pressure, and a light-transmissive barium fluoride sintered compact is obtained. The compact has an excellent linear transmittance in the IR region of 8-11mum wavelength. Meanwhile, CIP and atmospheric-pressure sintering are applied instead of hot-press sintering and HIP, and an inexpensive light-transmissive barium fluoride sintered compact with the light transmittance slightly deteriorated is produced.

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