Title:
SEAL MEMBER
Document Type and Number:
WIPO Patent Application WO/2022/113977
Kind Code:
A1
Abstract:
This seal member (1) is a cured product of a silicone rubber composition that comprises a silicone rubber and silica particles, and has a plurality of insertion holes (20) into which counterpart members (8) are inserted; and this seal member (1) satisfies the following conditions (a) to (d). (a) If X (parts by mass) is the content of the silica particles relative to 100 parts by mass of a base polymer of the silicone rubber, (elastic modulus recovery ratio (%))/(X (parts by mass)) is from 3.6 to 9.6. (b) The type A durometer hardness is from 15 to 30. (c) The tensile strength at break is 2.1 MPa or more. (d) The coefficient of kinetic friction of the surfaces of the insertion holes (20) is 2.5 or less.
Inventors:
MORITA TAKAHIRO (JP)
HAYASAKI YASUYUKI (JP)
YAMAOKA RYOSUKE (JP)
TAJIMA RISA (JP)
HAYASAKI YASUYUKI (JP)
YAMAOKA RYOSUKE (JP)
TAJIMA RISA (JP)
Application Number:
PCT/JP2021/042921
Publication Date:
June 02, 2022
Filing Date:
November 24, 2021
Export Citation:
Assignee:
SUMITOMO RIKO CO LTD (JP)
International Classes:
C08L83/04; C08K3/36; C08L83/05; C08L83/07; C08L91/00; C09K3/10
Domestic Patent References:
| WO2007004481A1 | 2007-01-11 |
Foreign References:
| JP2011153305A | 2011-08-11 | |||
| JP2018168297A | 2018-11-01 | |||
| JP2012001673A | 2012-01-05 | |||
| JP2016058138A | 2016-04-21 | |||
| JP2008195939A | 2008-08-28 |
Attorney, Agent or Firm:
HIGASHIGUCHI Michiaki et al. (JP)
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