Entry sheet for drilling
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsYousuke MATSUYAMA, Takaaki OGASHIWA
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Abstract
The present invention provides an entry sheet for drilling which provides higher hole position accuracy than that of a conventional entry sheet for drilling. The present invention provides an entry sheet for drilling, including a metal foil, and a layer including a resin composition and formed on at least one surface of the metal foil, wherein the resin composition includes a resin and tungsten disulfide as a solid lubricant, and the content of the tungsten disulfide included in the resin composition is 10 parts by mass to 200 parts by mass based on 100 parts by mass of the resin included in the resin composition.
Claims20
An entry sheet for drilling, comprising a metal foil, and a layer comprising a resin composition and formed on at least one surface of the metal foil, wherein
- the resin composition comprises a resin and tungsten disulfide as a solid lubricant, and
- the content of the tungsten disulfide included in the resin composition is 10 parts by mass to 200 parts by mass based on 100 parts by mass of the resin included in the resin composition.
Dependencies are inferred from the claim text.