Title:
METHOD FOR MANUFACTURING BLEED TYPE SLIDING CONTACT RING, AND GASKET AND SYRINGE USING SLIDING CONTACT RING
Document Type and Number:
WIPO Patent Application WO/2017/175256
Kind Code:
A1
Abstract:
Provided is a manufacturing method for manufacturing a sliding contact ring optimal for gasket assembly. Addition reaction type polysiloxane, a curing catalyst, silicone oil, and a filler are kneaded together to form a silicone rubber G before curing. The silicone rubber G before curing is put inside an accommodation space 41 of a mold K. The silicone rubber G is pressed by a plunger 42 into a cavity 43 from a gate 44. The cavity is filled while the blended silicone oil is caused to bleed onto the surface of the fluid comprising the silicone rubber G that enters the cavity in the process of being pressed. The silicone rubber G that has been pressed inside the cavity 43 is cured to form a sliding contact ring 19 with the silicone oil bled onto the surface thereof. After the curing, the sliding contact ring 19 is removed from the mold K.
Inventors:
YOTSUTSUJI AKIRA (JP)
Application Number:
PCT/JP2016/001934
Publication Date:
October 12, 2017
Filing Date:
April 06, 2016
Export Citation:
Assignee:
COKI ENG INC (JP)
International Classes:
B29C45/02; A61M5/315; B29C45/16; F16J15/00
Domestic Patent References:
WO2009001600A1 | 2008-12-31 | |||
WO2016056038A1 | 2016-04-14 |
Foreign References:
JP2002338809A | 2002-11-27 | |||
JP2000034411A | 2000-02-02 | |||
JP2015017198A | 2015-01-29 |
Attorney, Agent or Firm:
MORI, Yoshiaki et al. (JP)
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