Abstract: A cap includes a cap body including a disk-shaped top plate portion and a cylindrical skirt portion provided at a peripheral edge portion of the top plate portion; and a disk-shaped sealing member including a sliding layer and a sealing layer, the sliding layer disposed on the top plate portion side and having a thin portion thinner than at least a center side provided on an outer peripheral edge side, and the sealing layer provided on a main surface opposite to the top plate portion side of the sliding layer and sealing a mouth portion of a can container.

Abstract: A cap includes a cap body including a top plate portion and a skirt portion; a sealing member that is a separate member from the cap body and is provided in the cap body, the sealing member having an outer diameter smaller than an inner diameter of the skirt portion; a plurality of locking portions provided in a circumferential direction of the skirt portion, and configured to regulate a movement of the sealing member in a direction away from the top plate portion and support the sealing member; and a plurality of regulating portions provided in the circumferential direction of the skirt portion, protruding inward in a radial direction than an inner peripheral surface of the skirt portion, and configured to regulate a radial movement of the sealing member.

Abstract: A cap includes a cap body including a disk-shaped top plate portion and a cylindrical skirt portion provided at a peripheral edge portion of the top plate portion; and a disk-shaped sealing member including a sliding layer and a seal in layer, the sliding layer disposed on the top plate portion side and having a thin portion thinner than at least a center side provided on an outer peripheral edge side, and the sealing layer provided on a main surface opposite to the top plate portion side of the sliding layer and sealing a mouth portion of a can container.

Abstract: The problem to be solved by the present invention is to provide a polyester resin excellent in various properties wherein the film formability is good, film fracture (hairs) and scraping (galling) are not easily generated in the drawing/ironing process when applied to a metal-sheet-coating polyester film, the film surface is not damaged when used as the inner-surface film for a metallic can, and the metallic can is hardly corroded (dent resistance), by dropping or external impact (denting), after a product is made by enclosing contents into the can.

Abstract: A cap includes a cap includes a cap body including a disk-shaped top plate portion and a cylindrical skirt portion provided at a peripheral edge portion of the top plate portion; a sealing member provided separately from the cap body in the cap body so as to face the top plate portion, the sealing member having an outer diameter smaller than an inner diameter of the skirt portion; a bead portion provided in the skirt portion, restricting movement of the sealing member in a direction away from the top plate portion, supporting the sealing member, and protruding annularly inward in a radial direction of the skirt portion; and a slit portion provided in the bead portion.

Abstract: A manufacturing method of a cap (100) includes: supplying a first resin material to a molded product (111A) having a top plate portion (121) and a skirt portion (122) integrally formed on the top plate portion (121) through a corner portion (123); molding the first resin material of the molded product (111A) disposed in a first lower mold (21) into a sliding layer (141) with a first upper mold (22); supplying a second resin material to the sliding layer (141); molding the second resin material of the molded product (111A) disposed in a second lower mold (31) into a sealing layer (142) with a second upper mold (32); taking out a sealing member (112) in the molded product (111A); and inserting the sealing member (112) into another molded product (111A).

Abstract: A cap includes a cap body including a top plate portion and a skirt portion; a sealing member that is a separate member from the cap body and is provided in the cap body, the sealing member having an outer diameter smaller than an inner diameter of the skirt portion; a plurality of locking portions provided in a circumferential direction of the skirt portion, and configured to regulate a movement of the sealing member in a direction away from the top plate portion and support the sealing member; and a plurality of regulating portions provided in the circumferential direction of the skirt portion, protruding inward in a radial direction than an inner peripheral surface of the skirt portion, and configured to regulate a radial movement of the sealing member.

Abstract: A can lid comprising: a main body comprising a laminate metal sheet, the laminate metal sheet comprising a metal sheet and a first resin film on a major surface of the metal sheet, the major surface having a score line delimiting an opening piece, the first resin film comprising a first resin layer comprising a dimer acid-copolymerized polyester resin and being amorphous; and a tab attached to the main body and adapted to cause a cleavage along the score line.

Abstract: A manufacturing method of a cap (100) includes: supplying a first resin material to a molded product (111A) having a top plate portion (121) and a skirt portion (122) integrally formed on the top plate portion (121) through a corner portion (123); molding the first resin material of the molded product (111A) disposed in a first lower mold (21) into a sliding layer (141) with a first upper mold (22); supplying a second resin material to the sliding layer (141); molding the second resin material of the molded product (111A) disposed in a second lower mold (31) into a sealing layer (142) with a second upper mold (32); taking out a sealing member (112) in the molded product (111A); and inserting the sealing member (112) into another molded product (111A).

Abstract: The problem to be solved by the present invention is to provide a polyester resin excellent in various properties wherein the film formability is good, film fracture (hairs) and scraping (galling) are not easily generated in the drawing/ironing process when applied to a metal-sheet-coating polyester film, the film surface is not damaged when used as the inner-surface film for a metallic can, and the metallic can is hardly corroded (dent resistance), by dropping or external impact (denting), after a product is made by enclosing contents into the can.