Fluorine resin film, molded rubber body, and method for manufacturing molded rubber body
AssigneeNitto Denko Corporation
InventorsYuta KUROKI, Narumi UEDA, Kurato AKIBA, Keiko FUJIWARA
Life of this patent
Estimating the term…
Abstract
A fluorine resin film to be provided includes a fluorine resin, wherein the fluorine resin film has an average value of 1200% or more of a tensile elongation at break in a first direction and a tensile elongation at break in a second direction under a 180° C. atmosphere, the first direction and the second direction being in-plane directions and orthogonal to each other. This fluorine resin film can be used as a coating film for coating the surface of a rubber-containing substrate included in a molded rubber body and is suitable for manufacturing a molded rubber body having a surface coated with the film.
Claims15
A fluorine resin film comprising a fluorine resin, wherein
- the fluorine resin film has an average value of 1200% or more of a tensile elongation at break in a first direction and a tensile elongation at break in a second direction under a 180° C. atmosphere, the first direction and the second direction being in-plane directions and orthogonal to each other.
A method for manufacturing a molded rubber body including a resin film and a rubber-containing substrate having a surface coated with the resin film, wherein
- in the molded rubber body,
- the resin film is a fluorine resin film and has no tear,
- the surface includes a surface of a protrusion protruding from a base portion of the rubber-containing substrate,
- the protrusion has a height of 10 mm or more, and
- the resin film coats the protrusion from a top portion of the protrusion in a height direction of the protrusion, and
- the method comprises
- performing a shaping process of a rubber in a state where the resin film is placed in a mold, thereby obtaining the molded rubber body, and
- the resin film used is a resin film having a tensile elongation at break such that no tear occurs in changing the resin film from a film state to a shape conforming to a recess of the mold in a depth direction of the recess of the mold, the recess corresponding to the protrusion.
Dependencies are inferred from the claim text.