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    • 34. 发明专利
    • CORONA-DISCHARGE TREATMENT MACHINE
    • JP2000082566A
    • 2000-03-21
    • JP25263198
    • 1998-09-07
    • BRIDGESTONE CORP
    • SAITO SHINJITAKIZAWA TOSHIKI
    • H01T19/04
    • PROBLEM TO BE SOLVED: To enhance the work efficiency of corona-discharge treatment, by giving flexibility to at least a part of a discharge portion for corona-discharge treating surfaces of a building material to which a sealing material is applied. SOLUTION: A discharge treatment machine 1 comprises a body part 2 to be held by hand by a worker and an electrode 3 projecting forward from an end of the body part 2. The electrode 3 is made up of a flexible coil electrode so that discharge treatment can be carried out even if a gap between treated surfaces 4a, 4a of a building material 4 is narrow and winding. A power supply unit 6 is connected to the body part 2 via a cable 5. The electrode 3 mounted on a support rod 7. The electrode 3 is covered by a flexible tube made of an insulating synthetic rubber such as silicone rubber. Ends of the tube are sealed with a similar synthetic rubber. Not only the tube ends, but also the whole interior of the tube can be filled with silicone rubber or the like. Even a narrow and winding joint is efficiently discharge-treated.
    • 36. 发明专利
    • METHOD FOR APPLYING SEALANT
    • JPH11147070A
    • 1999-06-02
    • JP33353897
    • 1997-11-18
    • BRIDGESTONE CORP
    • TAKIZAWA TOSHIKISAITO SHINJI
    • E04B1/682B05D3/00B05D3/06
    • PROBLEM TO BE SOLVED: To conduct the high adhesion application of a sealant in the assembly of an outside wall, a window part and others by a method in which after the surface to which the sealant is applied being subjected to discharge treatment, the sealant containing a polyisocyanate compound having isocyanate groups is applied directly on the surface. SOLUTION: When a sealant is used in the assembly of an outside wall, a window part, and others for prefabrication in a factory, after a surface on which the sealant is applied being subjected to prescribed discharge treatment, the sealant containing a polyisocyanate compound having isocyanate groups is applied directly. The surface is preferably coated with a resin. As the resin to be used for coating, a fluororesin, an acrylic silicone resin, an acrylic resin, an acrylic urethane resin, and others are named. Corona treatment, plasma treatment, and plasma-torch treatment are suitable as the discharge treatment.
    • 37. 发明专利
    • EXECUTION METHOD OF SEALING MATERIAL
    • JPH1122102A
    • 1999-01-26
    • JP18925397
    • 1997-06-30
    • BRIDGESTONE CORP
    • SAITO SHINJITAKIZAWA TOSHIKI
    • E04B1/64E04C2/08E04G23/02
    • PROBLEM TO BE SOLVED: To bring out a highly intensified adhesive strength, by applying a sealing material after a treatment of corona discharge between a corona discharge electrode and a metallic panel has been executed on the resin-coated surface of the metallic panel. SOLUTION: In a corona discharge treatment, a metallic panel is grounded through an indirect earth method or two or more corona discharge electrodes the AC potential phases of which are shifted mutually, are combined. In this indirect earth method, these corona discharge electrodes 3 are installed above the metallic panel 1 coated with a resin film 2. The electrodes 3 are connected to a high tension AC electric source 4 and a conductive body 7 of the front end of a branch line 6 is positioned to contact the resin film 2. A corona discharging gap 8 is formed between the electrodes 3 and metallic panel 1. After a discharge treatment has been applied on the resin film 2, a sealing material is executed directly or after a primer has been applied when necessary. Accordingly, labor for grounding and demerits resulting from grounding in the corona discharge treatment can be avoided.
    • 40. 发明专利
    • PRODUCTION OF POLYMER
    • JPH05331222A
    • 1993-12-14
    • JP14451792
    • 1992-06-04
    • BRIDGESTONE CORP
    • TAKIZAWA TOSHIKIHORIKAWA YASUO
    • C08C19/26C08F8/42C08F236/10
    • PURPOSE:To efficiently obtain a polymer having low hysteresis loss by adding a specific organometallic compound to a polymerization system in polymerizing a conjugated diene and/or a vinyl aromatic hydrocarbon using an organolithium compound as an initiator. CONSTITUTION:An organometallic compound of the structural formula MR4 (M is metal selected from tin, germanium and lead and preferably tin; R is a molecular structural group having a structure selected from allyl, benzyl and phenyl structures in a binding part to M) (e.g. tetraallyltin) is added to a polymerization system during a period just after starting the polymerization and before completing the polymerization, preferably during a polymer chain growth period leading to preferably 80%, more preferably 20% conversion ratio in polymerizing a conjugated diene (preferably 1,3-butadiene) and/or a vinyl aromatic compound (preferably styrene) in a hydrocarbon solvent using an organolithium compound (preferably n-butyl-lithium or t-butyl-lithium) as an initiator to carry out the polymerizing reaction. Thereby, the objective polymer containing a high-molecular weight polymer having tin-carbon bond chain is produced.