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    • 98. 发明专利
    • DRY JOINT AND MANUFACTURE THEREOF
    • JPH07247654A
    • 1995-09-26
    • JP6011294
    • 1994-03-03
    • KASEI KOGYO KKTOKAI KOGYO CO LTD
    • KONDO KAZUO
    • E04F13/08B32B25/20E04B1/684
    • PURPOSE:To provide a dry joint having a designed surface excellent in weather resistance and being excellent in mechanical strength as a whole and a method for manufacturing the same. CONSTITUTION:A dry joint has a main body 11 made of rubber, a sealing surface 121 facing the bottom of a joint groove, and a designed surface 122 facing the opening of the joint groove, with a silicone rubber layer 12 provided over the designed surface 122. A method for manufacturing the dry joint 1 includes preparing an uncrosslinked mixture for the main body of a rubber component, an organic peroxide crosslinking agent, and an additive such as a reinforcing agent, and an uncrosslinked mixture for the designed surface of a silicone polymer and an organic peroxide crosslinking agent; molding the uncrosslinked mixture for the main body into the shape of the main body 11 of the dry joint; laminating the designed surface 122 with the uncrosslinked mixture for the designed surface; and heating them in the presence of hot air.
    • 100. 发明专利
    • PRESSURIZING ROLLER
    • JPH07205337A
    • 1995-08-08
    • JP1570594
    • 1994-01-17
    • ARAI PUMP MFG
    • KAWASAKI HIROSHI
    • G03G15/20B29C63/18B29D99/00B29K27/12B29L31/32B32B3/10B32B25/08B32B25/20B29D31/00
    • PURPOSE:To obtain stable fixing properties of toner without having generation of creases on paper, by a method wherein a plurality of holes which have fixed lengths and closed ends are provided in a silicone sponge rubber layer in a longitudinal direction of a roller at equal intervals in a radial direction from the center of a core metal in a silicone sponge rubber layer. CONSTITUTION:In a pressurizing roller 1, after the outer circumference of a core metal 2 is coated with a silicone sponge rubber layer 3 provided with a plurality of holes 5... whose end parts of a longitudinal direction are closed, a fluorine resin sleeve 4 having a thickness of not exceeding 0.1mm is stuck to the circumference. To stick the silicone sponge rubber layer 3 to the core metal 2 by forming a plurality of holes 5... of a longitudinal direction of the roller within the silicone sponge rubber layer 3 at equal intervals in the radial direction from the center of the core metal, silicone rubber obtained by kneading a foaming agent and vulcanizing agent beforehand is extruded by an extruding machine, heated, foamed and a silicone sponge tube which is connected with a sponge layer and having a through hole is manufactured, after insertion into the core metal 2 to which an additional type adhesive agent is applied, heated and stuck to the core metal 2. After cutting an end part, both ends of the through hole are sealed up tightly with an appropriate masking material and formed.