Metal gasket material plate and method for manufacturing the same
OwnerTsunehiko Abe, Tomokazu Nakanishi +6inventors
InventorsTsunehiko Abe, Tomokazu Nakanishi, Shingo Watanabe, Yoshiharu Takada, Ichiro Goto, Shinsuke Mochizuki, Kenji Okubo, Yasuaki Nagai
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Abstract
A laminated-type metal gasket material plate includes a metal plate having two sides, a rubber layer, a layer of a surface preparation agent free from hexavalent chromium, and an adhesive layer. The layer of the surface preparation agent is coated on at least one side of the plate. The adhesive layer attaches the rubber layer and is provided on the layer of the surface preparation agent. Both the adhesive layer and the rubber layer contain a rust-resistant pigment.
Claims19
A laminated-type metal gasket material plate, comprising:
- a metal plate having two sides;
- a rubber layer;
- a layer of a surface preparation agent free from hexavalent chromium, the layer being coated on at least one side of the plate;
- and
- an adhesive layer attaching the rubber layer and provided on the layer of the surface preparation agent, wherein both the adhesive layer and the rubber layer contain a rust-resistant pigment.
A laminated-type metal gasket material plate, comprising:
- a metal plate having two sides;
- a rubber layer;
- a layer of a surface preparation agent free from hexavalent chromium and including trivalent chromium, the layer being coated on at least one side of the plate;
- and
- an adhesive layer attaching the rubber layer and provided on the layer of the surface preparation agent, wherein both the adhesive layer and the rubber layer contain a rust-resistant pigment.
A laminated-type metal gasket material plate, comprising:
- a metal plate having two sides;
- a rubber layer;
- a layer of a surface preparation agent free from hexavalent chromium, the layer being coated on at least one side of the plate;
- and
- an adhesive layer attaching the rubber layer and provided on the layer of the surface preparation agent, the adhesive layer being formed of an adhesive agent selected from one of:
- a phenol resin-based adhesive agent;
- and
- a phenol resin and epoxy resin mixed-based adhesive agent, the adhesive agent including at least one of phenol modified epoxy resin, novolac type phenol resin, and resole type phenol resin;
- and
- both the adhesive layer and the rubber layer containing a rust-resistant pigment.
Dependencies are inferred from the claim text.