Material for gasket
AssigneeNichias Corporation
InventorHideharu Aoyagi
Life of this patent
Estimating the term…
Abstract
A gasket material to be mounted in a vehicle engine, wherein, on one or both sides of a steel plate, a rubber layer is formed via a coating film including a reaction product of an acid component and a metal or a reaction product of an acid component and a metal compound, and at least one selected from zirconia, alumina and titania.
Claims7
A gasket material to be mounted in a vehicle engine, comprising a steel plate and, on one or both sides of the steel plate, a rubber layer via a coating film consisting essentially of a reaction product of an acid component and a metal or a reaction product of an acid component and a metal compound, and alumina;
- wherein
- the metal or a metal in the metal compound is neither Ti (titanium), Zr (zirconium) nor Zn (zinc).
A gasket material to be mounted in a vehicle engine, comprising
- a steel plate, and on one or both sides of the steel plate,
- a coating film consisting essentially of a reaction product of an acid component and a metal or a reaction product of an acid component and a metal compound, and alumina;
- a primer layer that does not contain polybutadiene, hydrogenated polybutadiene and modified polybutadiene;
- and a rubber layer in this order;
- wherein
- the metal or a metal in the metal compound is neither Ti (titanium), Zr (zirconium) nor Zn (zinc).
Dependencies are inferred from the claim text.