Title:
ANNULAR SEALANT AND PRODUCING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/189585
Kind Code:
A1
Abstract:
The present invention relates to an annular sealant comprising an inner core and an outer layer covering the periphery of the inner core, the inner core and the outer layer including crosslinked bodies of crosslinkable rubber compositions having different colors either after hot press molding or after secondary crosslinking or both. The present invention provides an annular sealant that can be mass-produced using different materials for an inner core and an outer layer and a method for producing the same.
Inventors:
OSUMI NAOKI (JP)
MOCHIZUKI TOMOMITSU (JP)
OTSUKA MIKI (JP)
MOCHIZUKI TOMOMITSU (JP)
OTSUKA MIKI (JP)
Application Number:
PCT/JP2023/010022
Publication Date:
October 05, 2023
Filing Date:
March 15, 2023
Export Citation:
Assignee:
VALQUA LTD (JP)
International Classes:
B29C69/02; F16J15/10; F16J15/328; F16J15/3284
Foreign References:
| JP2011208204A | 2011-10-20 | |||
| JPH0483976A | 1992-03-17 | |||
| JP2005282820A | 2005-10-13 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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