Coating film and method for forming coating film
AssigneeTerumo Kabushiki Kaisha
InventorMayu HATA
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Abstract
A coating film applied to a surface of a substrate, the coating film including: a thermoplastic elastomer; and a pigment, in which a mass ratio between the thermoplastic elastomer and the pigment is less than 1:2.0, and, in the coating film, in a tensile test when a test piece acquired by applying the coating film to the substrate having a width of 10 mm and a length of 40 mm is set in a tensile tester so that a grip distance is 25 mm, and is measured at a tensile speed of 25 mm/min, elongation when a test piece (A) including the substrate and the coating film breaks is smaller than elongation when a test piece (B) including the substrate breaks, and the elongation of the test piece (A) is 40% or more of the elongation of the test piece (B).
Claims20
A coating film applied to a surface of a substrate, the coating film comprising:
- a thermoplastic elastomer;
- and
- a pigment,
- wherein a mass ratio between the thermoplastic elastomer and the pigment is less than 1:2.0, and,
- in the coating film, in a tensile test when a test piece acquired by applying the coating film to the substrate having a width of 10 mm and a length of 40 mm is set in a tensile tester so that a grip distance is 25 mm, and is measured at a tensile speed of 25 mm/min, elongation when a test piece (A) including the substrate and the coating film breaks is smaller than elongation when a test piece (B) including the substrate breaks, and the elongation of the test piece (A) is 40% or more of the elongation of the test piece (B).
A light irradiation device comprising:
- an elongated shaft;
- a balloon disposed at a distal end of the elongated shaft and exposed to a distal end side of the elongated shafted, the balloon including a transmission window that allows light from a light irradiation unit of a light irradiation body to radiate outward through the transmission window and a light-blocking body formed from a coating film applied to the surface of the balloon and having a lower transmittance of light from the light irradiation unit than a transmittance of the transmission window;
- and
- wherein the coating film comprises:
- a thermoplastic elastomer;
- and
- a pigment,
- wherein a mass ratio between the thermoplastic elastomer and the pigment is less than 1:2.0, and,
- in the coating film, in a tensile test when a test piece acquired by applying the coating film to the substrate having a width of 10 mm and a length of 40 mm is set in a tensile tester so that a grip distance is 25 mm, and is measured at a tensile speed of 25 mm/min, elongation when a test piece (A) including the substrate and the coating film breaks is smaller than elongation when a test piece (B) including the substrate breaks, and the elongation of the test piece (A) is 40% or more of the elongation of the test piece (B).
A method for forming a coating film, comprising:
- preparing a first solution in which, to make a mass ratio between a thermoplastic elastomer and a pigment less than 1:2.0, the pigment is dissolved in a solvent;
- preparing a second solution in which the thermoplastic elastomer is dissolved in the first solution;
- and
- applying and drying the second solution to a substrate,
- wherein, in the coating film, in a tensile test when a test piece acquired by applying the coating film to the substrate having a width of 10 mm and a length of 40 mm is set in a tensile tester so that a grip distance is 25 mm, and is measured at a tensile speed of 25 mm/min, elongation when a test piece (A) including the substrate and the coating film breaks is smaller than elongation when a test piece (B) including the substrate breaks, and the elongation of the test piece (A) is 40% or more of the elongation of the test piece (B).
Dependencies are inferred from the claim text.