Title:
【発明の名称】ゴム積層体
Document Type and Number:
Japanese Patent JP3341608
Kind Code:
B2
Abstract:
A rubber layer structure provided with a first rubber layer having a first liquid facing surface for contact with a liquid surface and a second rubber layer in contact with a second surface of the first rubber layer. The first rubber layer is formed of a peroxide vulcanization first rubber compound which mainly comprises EPDM, contains sulfur powder as a co-crosslinking agent and does not contain a zinc compound. The second rubber layer is formed of a sulfur vulcanization second rubber compound which mainly comprises EPDM and contains a zinc compound. The first rubber layer and the second rubber layer are adhered together by vulcanization.
Inventors:
Koichi Tangiku
Atsushi Suzuki
Masayoshi Ichikawa
Atsushi Suzuki
Masayoshi Ichikawa
Application Number:
JP34631796A
Publication Date:
November 05, 2002
Filing Date:
December 25, 1996
Export Citation:
Assignee:
Toyoda Gosei Co., Ltd.
International Classes:
F16L11/04; B29D22/00; B32B1/08; B32B25/04; (IPC1-7): B32B25/04; B32B1/08; F16L11/04
Domestic Patent References:
| JP5138822A | ||||
| JP5278165A | ||||
| JP62169826A | ||||
| JP1178539A |
Attorney, Agent or Firm:
Kentaro Iida (1 person outside)