Abstract: A zipper tape having an elongated shape includes, in a cross-sectional shape thereof: a pair of base strips; and engagement portions projecting from respective opposing surfaces of the pair of base strips and being engageable with each other, in which at least the engagement portions each are formed with a resin composition including polypropylene, the resin composition having fusion enthalpy ?H120 in a temperature range of higher than or equal to 120 degrees C. measured by differential scanning calorimetry (DSC) of less than 30 J/g, and has tensile modulus of elasticity of less than or equal to 600 MPa.

Abstract: A zipper tape includes a pair of belt-shaped bases bondable to a film of a bag body, and mutually engageable engagement portion each integrally provided to corresponding one of the belt-shaped bases. One of the belt-shaped bases includes at least two portions having different bonding strengths to the film on a side opposite a side provided with the engagement portion and between an edge of the one of the belt-shaped bases in a width direction orthogonal to a longitudinal direction to a point at which the engagement portions are provided. A bonding strength of a first portion of the at least two portions to the film may be larger than a bonding strength of a second portion to the film.

Abstract: A female belt-shaped base is attached to a bag body at a region from a female hook to a first end near an open end of the bag body and to a second end near a housing space. A male belt-shaped base is attached to the bag body only in a bonding region without being attached at a region from a position where an engagement portion is continuously attached to a first end near the open end of the bag body.

Abstract: A bag body includes a bag main body and a zipper tape heat-sealed to an inner surface of the bag main body. The zipper tape comprises a pair of belt-shaped bases and two pairs of mating portions configured to be mated with each other. One of the belt-shaped bases is attached to the bag main body only at a widthwise side near an opening. First one of the mating portions includes a pair of hooks provided to each of the belt-shaped bases and respectively having nails at ends of the hooks that are configured to be meshed with each other. The second mating portion includes a concave female mating portion provided to the belt-shaped base and a male mating portion having the same shape as the hook and configured to disengageably mate with the female mating portion. The nail of the hook protrudes toward the opening.

Abstract: A zipper tape having an elongated shape includes, in a cross-sectional shape thereof: a pair of base strips; and engagement portions projecting from respective opposing surfaces of the pair of base strips and being engageable with each other, in which at least the engagement portions each are formed with a resin composition including polypropylene, the resin composition having fusion enthalpy ?H120 in a temperature range of higher than or equal to 120 degrees C. measured by differential scanning calorimetry (DSC) of less than 30 J/g, and has tensile modulus of elasticity of less than or equal to 600 MPa.

Abstract: A zipper tape includes: a first resin portion made of a resin composition whose main polymer is polyolefin, the first resin portion including a base strip to define a pair of base strips and an engaging portion to define a pair of mutually engageable engaging portions, the engaging portion projecting from corresponding one of mutually facing faces of the base strips; and second resin portions made of a resin composition whose main polymer is polyester, the second resin portions at least covering faces of the base strips opposite the engaging portions.

Abstract: A method of manufacturing a molded article, which comprises: (a) a step of manufacturing the molded article by use of a laminate that has a first layer comprising polypropylene, and a second layer comprising one or more selected from the group consisting of polyethylene, polyamide, an ethylene-vinyl alcohol copolymer, and an ethylene-vinyl acetate copolymer.

Abstract: A tearing guide strip 23 is integrated with a base part 21a or 21b of at least one of a male member 2a and a female member 2b constituting a zipper 2 in a peelable manner to improve the tearing unsealing ability of a zipper-equipped bag provided with an interlocking type zipper enabling resealing and unsealing after the bag is unsealed.

Abstract: In order to allow a bag to be easily unsealed by sliding both sides of the bag in a longitudinal direction of a zipper tape irrespective of the rigidity of the zipper tape, a zipper-tape bag according to an aspect of the invention includes: a bag body including at least a pair of facing surfaces; and an elongated zipper tape whose cross sectional profile includes first and second bases each bonded to corresponding one of facing surfaces, and mutually engageable first and second engagement portion respectively protruded from the first and second bases, the zipper tape including an intermediate hinge at at least one point in the longitudinal direction.

Abstract: A bag includes: a bag body at least having a first surface and a second surface facing each other with a storing space formed between the first surface and the second surface; and a tape member provided between the first surface and the second surface and defining one side of the storing space. The tape member includes, in a cross section, a first portion formed of a first resin composition and a second portion formed of a second resin composition different from the first resin composition. The first portion is bonded to both the first surface and the second surface at a first section of a longitudinal direction of the tape member while bonded to only the second surface at a second section of the longitudinal direction, and the second portion is bonded to the first surface at the second section.

Abstract: A zipper tape includes a pair of belt-shaped bases bondable to a film of a bag body, and mutually engageable engagement portion each integrally provided to corresponding one of the belt-shaped bases. One of the belt-shaped bases includes at least two portions having different bonding strengths to the film on a side opposite a side provided with the engagement portion and between an edge of the one of the belt-shaped bases in a width direction orthogonal to a longitudinal direction to a point at which the engagement portions are provided. A bonding strength of a first portion of the at least two portions to the film may be larger than a bonding strength of a second portion to the film.

Abstract: A tearing guide strip 23 is integrated with a base part 21a or 21b of at least one of a male member 2a and a female member 2b constituting a zipper 2 in a peelable manner to improve the tearing unsealing ability of a zipper-equipped bag provided with an interlocking type zipper enabling resealing and unsealing after the bag is unsealed.

Abstract: A zipper tape includes a pair of belt-shaped bases bondable to a film of a bag body, and mutually engageable engagement portion each integrally provided to corresponding one of the belt-shaped bases. One of the belt-shaped bases includes at least two portions having different bonding strengths to the film on a side opposite a side provided with the engagement portion and between an edge of the one of the belt-shaped bases in a width direction orthogonal to a longitudinal direction to a point at which the engagement portions are provided. A bonding strength of a first portion of the at least two portions to the film may be larger than a bonding strength of a second portion to the film.

Abstract: A male belt-shaped base having a male member with a short width, and a separation strip are heat-sealed to a film. A female belt-shaped base having a female member with a long width is heat-sealed at a predetermined position so that the male portion and the female portion are at engageable positions. The film is layered and suitably sealed to form a zipper-tape bag. The film and the separation strip are cut to form a cut portion at a non-bonded region in which the film of the zipper-tape bag is not bonded, thereby forming an unsealing tab. The unsealing tab can be easily formed by simply cutting the film.

Abstract: A resin sheet comprising polypropylene and one or more selected from the group consisting of a ? crystal nucleating agent and a petroleum resin, wherein the resin sheet has a crystallization speed at 130° C. of 2.5 min?1 or less and an isotactic pentad fraction of 95 mol % or more and 99 mol % or less.

Abstract: A bag includes a bag body defining a housing space, an elongated member provided on a first face portion of two face portions forming the bag body, and a tab. The elongated member includes an elongated tearing guide piece, a belt-shaped base provided between a second face portion and the tearing guide piece along a longitudinal direction of the tearing guide piece. The tab has an outer edge defined in the first face portion by a cutting line penetrating through the belt-shaped base and the first face portion. A protector covering the tab is provided on a side of the first face portion provided with the belt-shaped base.

Abstract: A male belt-shaped base having a male member with a short width, and a separation strip are heat-sealed to a film. A female belt-shaped base having a female member with a long width is heat-sealed at a predetermined position so that the male portion and the female portion are at engageable positions. The film is layered and suitably sealed to form a zipper-tape bag. The film and the separation strip are cut to form a cut portion at a non-bonded region in which the film of the zipper-tape bag is not bonded, thereby forming an unsealing tab. The unsealing tab can be easily formed by simply cutting the film.

Abstract: A resin sheet is manufactured by: forming a rapidly-cooled transparent polypropylene sheet by rapidly cooling a molten polypropylene resin; laminating on the rapidly-cooled transparent polypropylene sheet a resin layer of polyurethane resin, the polyurethane resin having a tensile-rupture elongation in a range from 150% to 900% and a softening point in a range from 50 degrees C. to 180 degrees C.; and laminating a print layer on the resin layer. A molded article having a non-planar molding made of the resin sheet is provided by insert molding. The molding is formed into a complicated shape where a part of the molding has: 150% or more of an elongation ratio; 0.8 or less of a film-thickness ratio (B/A) before and after the sheet is molded; and/or a surface area ratio (Y/X) before and after the sheet is molded in a range from 1.5 to 5.

Abstract: A tape bondable to an inner surface of at least one of films forming a bag body is provided. The tape includes: at least one elongated base; a tearing guide piece bonded to the base in a longitudinal direction of the base and capable of tearing the base and the film; and at least one protrusion protruding in a direction of the tearing guide piece from a surface of the base to which the tearing guide piece is bonded. The protrusion is formed on a portion of the base where the tearing guide piece is not bonded.

Abstract: This laminate includes a thermoplastic resin layer and a protective layer, the protective layer including a welding layer, and the welding layer including a thermoplastic elastomer.