IDEMITSU UNITECH CO., LTD Patent applications |
Patent application number | Title | Published |
20160052243 | LAMINATED BODY, MOLDED BODY, MOLDED PRODUCT, AND METHOD FOR MANUFACTURING MOLDED PRODUCT - 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. | 02-25-2016 |
20150375902 | ZIPPER AND ZIPPER-EQUIPPED BAG - A tearing guide strip | 12-31-2015 |
20150266627 | BAG WITH CHUCK TAPE | 09-24-2015 |
20150086139 | EASILY TEARABLE ZIPPER TAPE AND PACKAGING BAG WITH EASILY TEARABLE ZIPPER TAPE - A thin portion is provided near an opening of a bag body to a main body of a belt-like base connected to an engagement portion. The thin portion is provided between a thick first projecting portion and a thick second projecting portion. The thin portion is thinner than the first projecting portion and the second projecting portion. On the thin portion, ribs are provided in plural lines. | 03-26-2015 |
20140314343 | SHAPE-RETAINING TAPE, ZIPPER TAPE, PACKAGING BAG, METHOD FOR MANUFACTURING SHAPE-RETAINING TAPE, MADHOD FOR MANUFACTURING ZIPPER TAPE - A shape-retaining tape and a zipper tape that can be produced only by extrusion molding without using a stretching process, and can retain a prescribed shape by being attached to a package bag formed of a resin film or the like, and a package bag in which these tapes are attached to an opening part. In a zipper tape having an engagement part in which a protruded male part and a recessed female part are engaged with each other, shape-retaining parts formed of a resin composition obtained by adding 0.1 to 40 parts by weight of an inorganic filler relative to 100 parts by weight of a high-density polyethylene resin are provided along the tape-length direction of a male-side belt-like base part and a female-side belt-like base part. | 10-23-2014 |
20140233869 | EASILY OPENABLE FASTENER TAPE, PACKAGING BAG WITH EASILY OPENABLE FASTENER TAPE, AND METHOD OF MANUFACTURING EASILY OPENABLE FASTENER TAPE - A belt-shaped base of a male member of a zipper tape attached on an inner surface of a bag body includes a main body provided with an engagement portion, a thin portion connected to an opening-side of the main body, a thick portion connected to an opening-side of the thin portion and a projecting portion provided on the thick portion. A female member is also provided with the same arrangement. When the zipper tape is fused with the bag body, a gap is provided between the thin portion and a film of the bag body and between the thin portion and a film of a bag body, so that the thin portions are easily bent. | 08-21-2014 |
20140187402 | METHOD FOR HEAT SEALING ZIPPER TAPE, METHOD FOR MANUFACTURING FILM ROLL HAVING ZIPPER TAPE, AND METHOD FOR MANUFACTURING PACKAGING HAVING ZIPPER TAPE - A heat sealing method of a zipper tape is for heat sealing the zipper tape in a direction perpendicular to a feeding direction of a film. The heat sealing method includes: inserting the zipper tape between the film and a circumference of a roller on which the film is wound; and heat sealing the zipper tape to the film with a seal bar following a rotation of the roller in a continuous manner, while the zipper tape is interposed between the circumference of the roller and the film. | 07-03-2014 |
20140114046 | BIAXIALLY STRETCHED NYLON FILM FOR COLD MOLDING, LAMINATE FILM, AND MOLDED BODY - In a biaxially oriented nylon film for cold forming, respective tensile stresses σ | 04-24-2014 |
20140112601 | ZIPPER TAPE AND BAG BODY COMPRISING ZIPPER TAPE - A bag body provided with a zipper tape in which both openability by hands and openability by an automatic machine are improved while ensuring the opening strength on the contents side in order to prevent the leakage of the contents is provided. A zipper tape is configured such that the distance A between a front end part of a female part on the non-opening side and a top part on a protruded part on the opening side, the distance B between a front end part of a female part on the non-opening side and a front part opposing to a stripe-shaped base in a protruded part on the non-opening side, and the angle C formed by a protruded part on the non-opening side and a side surface of a shaft part connecting therewith satisfies the relationship represented by the following formula: A−B≦0.20 mm and 50°≦C≦85°. | 04-24-2014 |
20140097185 | EASY-OPEN CONTAINER, MANUFACTURING METHOD THEREOF AND MANUFACTURING DEVICE THEREOF - In manufacturing an easy-open container ( | 04-10-2014 |
20140037974 | METHOD FOR PRODUCING TRANSPARENT RECYCLED SHEET, AND TRANSPARENT RECYCLED SHEET - A method of manufacturing a transparent recycled sheet using a multilayer sheet as a recycled resin, the multilayer sheet including a base layer and a surface layer being layered on each other and each including a crystalline resin, includes: melt-extruding a mixed resin into a raw sheet, the mixed resin being prepared by mixing a virgin resin including the crystalline resin, the recycled resin and a metallocene ethylene-alpha-olefin copolymer having a melt flow rate of 0.5 g/10 min to 6 g/10 min; and cooling the raw sheet. | 02-06-2014 |
20130280507 | TRANSPARENT MULTILAYER SHEET AND MOLDED PRODUCT THEREOF - A transparent multilayer sheet of the embodiments includes a base layer and a surface layer laminated on at least one surface of the base layer. The base layer is formed of a resin composition that has a storage modulus being 2300 MPa or more at a temperature of 23 degrees C. and at a frequency of 1 Hz while being 150 MPa or less at a temperature of 140 degrees C. and at a frequency of 1 Hz and that has a crystallization speed of 1 min | 10-24-2013 |
20130177761 | SURFACE PROTECTION FILM - A surface protective film includes a polyolefin base material layer and an adhesive layer. The adhesive layer has hardness (Martens hardness) in a range of 1 N/mm | 07-11-2013 |
20130004783 | METHOD FOR MANUFACTURING TRANSPARENT LAMINATED SHEET, AND TRANSPARENT LAMINATED SHEET - In a manufacturing method of a transparent laminated sheet of the invention, the transparent laminated sheet includes a first base layer that is formed by a crystalline resin and a second base layer that is provided on at least one surface of the first base layer and is formed of a crystalline resin. The crystalline resin for the second base layer has a larger melt flow rate and a shorter relaxation time than the crystalline resin for the first base layer. The transparent laminated sheet is formed by rapidly cooling the crystalline resin for the first base layer and the crystalline resin for the second base layer immediately after being respectively extruded from dies in a melted state. | 01-03-2013 |
20120321225 | ZIPPER TAPE AND PACKAGE BAG WITH ZIPPER TAPE - A head of a male member and a concave groove of a female member are engageable with and disengageable from each other and form a containing space inside a bag body. On an inner surface of the concave groove, there is provided a fusion layer that fuses an outer surface of the head and the inner surface of the concave groove facing each other, when foods are heat-sterilized for long storage. A peeling strength of the fusion layer only needs to be set by selecting a material of the fusion layer or setting dimensions of an area of the fusion layer such that the fusion layer does not require a large force for opening the bag, thereby providing a favorable opening feeling. The fusion layer provides air-tightness, so that the foods can be prevented from leaking out although a pressure within the containing space is increased in the heat sterilization. | 12-20-2012 |
20120314978 | ZIPPER TAPE AND PACKING BAG WITH ZIPPER TAPE - A thick portion is formed thick at an end of a female belt-like base near a containing space. To the thick portion near the containing space, a cut portion thinner than the female belt-like base is provided. To the cut portion near the containing space, a seal base that is thicker than the female belt-like base and is sealed to an inner surface of a bag body to which a male belt-like base is attached, is provided. Seal strength of the thick portion to the inner surface is lower than that of the seal base. The cut portion is provided to have a lower seal strength than that of the seal base. An area surrounded by the thick portion, the cut portion, the seal base and the inner surface becomes hermetically sealed. Even when external pressure is applied on the bag body, damages to the cut portion can be prevented. | 12-13-2012 |
20120295105 | SURFACE-PROTECTION FILM, MANUFACTURING METHOD THEREFOR, BASE FILM FOR A SURFACE-PROTECTION FILM, AND MANUFACTURING METHOD THEREFOR - A surface protective film includes a base layer having polyolefin as a main component and an adhesion layer. The surface protective film and a base film for the surface protective film are thermally treated at a temperature from 40 degrees C. to 100 degrees C. for 1 second to 120 seconds and a size change ratio at which each of the surface protective film and the base film changes in size after being heated at 90 degrees C. for one hour falls within ±0.50% in each of MD (a machine direction) and TD (a traverse direction). Generation of curling is prevented and a surface of a target member is protected without damaging properties or performance of the target member. | 11-22-2012 |
20120275730 | ZIPPER TAPE AND PACKAGING BAG WITH ZIPPER TAPE - Since a rib having a thickness substantially equal to a thickness of each of first and second thick portions is provided in a cutting portion of a zipper tape, the first and second thick portions and the rib can be bonded to an inner surface when the zipper tape is bonded to a bag body. Accordingly, when tearing a packaging bag for opening, stress concentrates on a thin portion having a small tensile strength, so that the packaging bag can be cut at a single cutting position in the thin portion. Consequently, no cutting fragment is generated. Moreover, since a cutting line is positioned by the rib when tearing the packaging bag, the cutting line is not waved, so that the packaging bag can easily be torn with a linear cutting performance. | 11-01-2012 |
20120201480 | ZIPPER TAPE, PACKAGING BAG WITH ZIPPER TAPE, METHOD FOR PRODUCING PACKAGING BAG WITH ZIPPER TAPE AND PRODUCTION DEVICE THEREFOR - After engagement of a male belt-like member and a female belt-like member are disengaged, a void portion is formed by punching the female belt-like member with a die. The female belt-like member having the void portion and the male belt-like member are re-engaged with each other and fed between a folded base material film that is continuously fed. A male belt-like base and a female belt-like base are heat-sealed. A seal bar heat-seals the base material film to form a bottom seal portion. A side seal bar heat-seals the base material film to form side seal portions. The cutter cuts the base material film in the middle of the side seal portions to produce the packaging bag in which three sides of the bottom seal portion and the side seal portions are heat-sealed. | 08-09-2012 |
20120085479 | MANUFACTURING METHOD FOR PACKAGING BAG WITH ZIPPER TAPE AND MANUFACTURING APPARATUS THEREFOR - A zipper tape member having a male engagement portion and a female engagement portion formed on a surface of an elongated belt-like tape is pulled out, and is punched and removed at a portion corresponding to the male engagement portion and a portion corresponding to the female engagement portion at predetermined intervals. The zipper tape member is cut between the male engagement portion and the female engagement portion by a cutting member to be separated into a male belt-like member and a female belt-like member. The male belt-like member and the female belt-like member are heat-sealed to a base film, and a packaging bag is formed by a bag-manufacturing device. This arrangement is unlikely to cause a length difference or a tension difference between the male belt-like member and the female belt-like member, so that the zipper tape can be heat-sealed without any crease or adhesion failure. | 04-12-2012 |
20120033899 | ZIPPER TAPE AND ZIPPER-TAPE-EQUIPPED BAG - A zipper tape includes a male member and a female member that bite each other. The male member has a head, a projection at the tip of the head, and a recess located at a connecting portion between the projection and the tip of the head. The female member has first and second claw members facing each other, a valley between the first and second claw members, and a pair of protrusions located at the top of the valley. When the male member and the female member bite each other, at least a part of the inner surface of the first claw member of the female member and at least a part of the inner surface of the second claw member of the female member come into surface contact with at least a part of the surface of the head of the male member. The valley of the female member receives the projection of the male member, and the protrusions of the female member fit into the recesses of the male member. | 02-09-2012 |
20120020590 | EASILY TEARABLE ZIPPER TAPE AND PACKAGING BAG WITH EASILY TEARABLE ZIPPER TAPE - A thin portion is provided near an opening of a bag body to a main body of a belt-like base connected to an engagement portion. The thin portion is provided between a thick first projecting portion and a thick second projecting portion. The thin portion is thinner than the first projecting portion and the second projecting portion. On the thin portion, ribs are provided in plural lines. | 01-26-2012 |
20110236676 | SURFACE PROTECTIVE FILM - A surface protective film includes: a polyolefin base material layer; and an adhesion layer, in which the adhesion layer includes: a vinyl-polyisoprene-block-containing styrene elastomer; a polyolefin; and a tackifier, and a hardness (Martens hardness) of the adhesion layer is 1.0 N/mm | 09-29-2011 |
20110150370 | ZIPPER TAPE AND PACKAGING BAG WITH ZIPPER TAPE - A seal base, which is thicker than a thick portion and is bondable to an inner surface of a bag body, is continuously connected to one of belt-like bases of a zipper tape via a belt-like cutting portion that is thinner than the thick portion and separates a containing space from an outside. A first linking portion having a first corner (a) is defined by a cutting outer surface of the cutting portion and a seal outer continuous surface of the seal base. A second linking portion having a second corner (b) is defined by a contained cutting surface of the cutting portion and a contained seal continuous surface of the seal base. | 06-23-2011 |
20110089228 | CONTINUOUS WORKING DEVICE - A continuous machining device includes: a film machining mechanism that forms a hole in a film; a holding mechanisms being provided integrally with the film machining mechanism; a slider that supports the film machining mechanism and the holding mechanism in a reciprocative manner relative to a feeding direction of the film; and a return mechanism that returns the film machining mechanism and the holding mechanism to their respective original positions defined on the opposite sides to the feeding direction of the film. When the film is held by the holding mechanism, the film machining mechanism can be moved in synchronization with the film. Thus, after the hole is formed in the film by the film machining mechanism, the film machining mechanism and the holding mechanism can be returned to their respective original positions by the return mechanism as soon as the film is released from the holding mechanism. | 04-21-2011 |
20110014408 | POLYPROPYLENE MOLDED ARTICLE, SHEET-LIKE POLYPROPYLENE MOLDED ARTICLE, AND METHOD FOR PRODUCTION OF POLYPROPYLENE THERMALLY MOLDED ARTICLE - A molten polypropylene having tacticity expressed in terms of an isotactic pentad fraction of 95 mol % or more is flowed. The molten-polypropylene is cooled to a temperature range of −200 degrees C. to 50 degrees C. and maintained at the above temperature for 0.1 second to 100 seconds, thereby providing a rapidly-cooled polypropylene higher order structure of which main constituents are a mesophase or monoclinic crystal domain having a size of 100 nm or less and an amorphous phase. The rapidly-cooled polypropylene higher order structure is heated to a temperature range in which endothermic transition occurs and that is equal to or lower than a melting temperature of polypropylene to be heat-treated. | 01-20-2011 |
20100266224 | CUTTING TAPE AND PACKAGING BAG WITH CUTTING TAPE - A cutting tape includes a leading portion, a first base, a second base and a seal layer. The leading portion is welded on a sealant layer with the seal layer interposed therebetween. The first base and the second base, which are laminated on the leading portion, respectively include thin laminated portions and body portions to be welded on the sealant layer. The laminated portions are welded on the leading portion. The body portions respectively have a substantially trapezoidal cross section projecting toward the sealant layer and having an inclined surface adjacent to the leading portion. | 10-21-2010 |
20100249340 | BIAXIALLY ORIENTED NYLON FILM, LAMINATE WRAPPING MATERIAL AND PROCESS FOR PRODUCTION OF BIAXIALLY ORIENTED NYLON FILM - Biaxially-oriented nylon film according to the present invention is biaxially-oriented nylon film made from nylon. In the biaxially-oriented nylon film, an elongation ratio of the film in each of four directions (an MD direction, a TD direction, a 45 degree direction and a 135 degree direction) until a film rupture is 70 percent or more, the elongation ratio being measured in a tensile test (testing conditions: a sample width is 15 mm; a distance between gauge points is 50 mm; and a tensile speed is 100 mm/min), and a stress ratio A (σ | 09-30-2010 |
20100220940 | INTERLOCKING DEVICE AND PACKAGING BAG WITH INTERLOCKING DEVICE - A packaging bag has a zipper including a pair of male member and a female member that are engageable with each other. The male member includes: a belt-shaped male base element provided on a packaging bag body; and a male engaging portion projecting from the belt-shaped male base element. The female member includes: a belt-shaped female base element located at a position opposed to the belt-shaped male base element; and a female engaging portion projecting from the belt-shaped female base element, the male engaging portion and the female engaging portion being disengageably engaged to form an engaging portion. The belt-shaped male base element and the belt-shaped female base element are made of a resin of which tensile modulus of elasticity is in a range of 700 MPa to 1600 MPa. The engaging portion is made of a resin of which tensile modulus of elasticity is in a range of 110 MPa to 560 MPa. | 09-02-2010 |
20100215291 | Easily Openable Fastener Tape, Packaging Bag With Easily Openable Fastener Tape, And Method Of Manufacturing Easily Openable Fastener Tape - A belt-shaped base of a male member of a zipper tape attached on an inner surface of a bag body includes a main body provided with an engagement portion, a thin portion connected to an opening-side of the main body, a thick portion connected to an opening-side of the thin portion and a projecting portion provided on the thick portion. A female member is also provided with the same arrangement. When the zipper tape is fused with the bag body, a gap is provided between the thin portion and a film of the bag body and between the thin portion and a film of the bag body, so that the thin portions are easily bent. | 08-26-2010 |
20100210439 | DEVICE FOR CUTTING PACKING BAG, DEVICE FOR PRODUCING PACKING BAG AND METHOD FOR PRODUCING PACKING BAG - A cutter includes a male blade, a female blade, an advancement and retraction controller and a suction device. The male blade includes: a linear cutting portion linearly shaped with a predetermined thickness in a center part; a rounded cutting portion where a radius having a substantially arc shape in planar view is continuously formed from the linear cutting portion; and an end provided adjacent to the rounded cutting portion. The female blade has a fitting portion that is a hole conforming to the profile of the male blade in planar view and to which the male blade is fitted. On a lateral side of the female blade, an elongated hole for inserting a base film from one lateral side to the other lateral side is formed as an insertion portion. | 08-19-2010 |
20100189999 | SURFACE PROTECTIVE FILM - A surface protective film includes a base material layer and an adhesive layer. The adhesive layer contains a styrene elastomer, a polyolefin and a tackifier. The styrene elastomer includes a hydrogenated or non-hydrogenated vinyl-polyisoprene block. The styrene elastomer contains 5% or more and 30% or less of styrene and 80% or more of triblock copolymer, and glass transition temperature of the styrene elastomer is −40 degrees C. or more and 20 degrees C. or less. | 07-29-2010 |