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US 11,236,432 B2Granted
Laminate, its manufacturing method, and gate seal
AssigneeValqua, Ltd.
InventorsMasayuki Noguchi, Hiromi Kinoshita
Life of this patent
Estimating the term…
Abstract
A laminate including a metal substrate having a chemically etched surface and a fluoroelastomer layer laminated in contact with the chemically etched surface or laminated in contact with a surface of a fluororesin layer laminated in contact with the chemically etched surface, and a gate seal including the laminate, are provided.
Claims8
A laminate comprising:
- a metal substrate including aluminum having a chemically etched surface haying irregularities with an arithmetic average roughness Ra, as defined in JIS B 0601:1994, of 0.1 to 50 μm;
- and
- a fluoroelastomer layer, consisting of a crosslinked product of a crosslinkable fluoroelastomer, laminated in contact with a surface of a fluororesin layer consisting of fluororesin laminated in contact with the chemically etched surface.
A laminate comprising:
- a metal substrate including ahuninum having a surface with a porous anodic oxide coating formed thereon by anodizing a chemically etched surface of the metal substrate including aluminum, the chemically etched surface having irregularities with an arithmetic average roughness Ra, as defined in JIS B 0601:1994, of 0.1 to 50 μm:
- and
- a fluoroelastomer layer;
- consisting of a crosslinked product of a crosslinkable fluoroelastomer. laminated in contact with the anodic oxide coating of laminated in contact with a surface of a laminated in contact with the anodic oxide coating.
1 more element
A method for manufacturing a laminate, comprising:
- providing a metal substrate including aluminum having a chemically etched surface having irregularities with an arithmetic average roughness Ra, as defined in JIS B 0601:1994, of 0.1 to 50 μm;
- forming a layer including a crosslinkable fluoroelastomer on a surface of a fluororesin layer consisting of fluororesin laminated in contact with the chemically etched surface;
- and
- crosslinking the layer including the crosslinkable fluoroelastomer to form a fluoroelastomer laver, consisting of a crosslinked product of the crosslinkable fluoroelastomer.
1 more element
A method for manufacturing a laminate comprising:
- providing a metal substrate including aluminum having a surface with a. porous anodic oxide coating formed thereon by anodizing a chemically etched surface of the metal substrate including aluminum, the chemically etched surface having irregularities with an arithmetic average roughness Ra, as defined in JIS B 0601:1994, of 0.1 to 50 μm;
- forming a layer including a crosslinkable fluoroelastomer on a surface of a fluororesin layer consisting of fluororesin laminated in contact with the surface of the anodic oxide coating;
- and
- crosslinking the layer including the crosslinkable fluoroelastomer to .form a fluoroelastomer laver, consisting of a crossliuked product of the crosslinkable fluoroelastomer.
1 more element
Dependencies are inferred from the claim text.