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公开(公告)号：US20230212362A1
公开(公告)日：2023-07-06
申请号：US18000744
申请日：2021-06-09
Applicant: TOYOBO CO., LTD.
Inventor： Mahiro NAKANO , Toru IMAI
CPC classification number: C08J5/18 , B32B27/08 , B32B27/32 , C08J2323/12 , B32B2250/03 , B32B2250/242 , B32B2307/30 , B32B2307/412 , B32B2307/418 , B32B2307/54 , B29C48/0018
Abstract: Provided is a biaxially oriented polypropylene film that has high stiffness, has excellent heat resistance at a high temperature of 150° C., easily maintains a bag shape when being made into a packaging bag, and has less pitch shift during printing or fewer wrinkles in a sealed portion when being heat-sealed. A biaxially oriented polypropylene film, wherein a stress at 5% elongation (F5) at 23° C. of the biaxially oriented polypropylene film is not lower than 40 MPa in a longitudinal direction and not lower than 160 MPa in a width direction, and a heat shrinkage rate at 150° C. of the biaxially oriented polypropylene film is not higher than 7% in the longitudinal direction and not higher than 16% in the width direction.
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公开(公告)号：US20230212361A1
公开(公告)日：2023-07-06
申请号：US18000719
申请日：2021-06-09
Applicant: TOYOBO CO., LTD.
Inventor： Mahiro NAKANO , Toru IMAI
CPC classification number: C08J5/18 , B32B27/32 , B32B27/08 , C08J2323/12 , B32B2307/518 , B32B2250/242 , B32B2307/418 , B32B2307/414 , B32B2307/30 , B32B27/16
Abstract: Provided is a biaxially oriented polypropylene film that can enhance function of having high stiffness, having excellent heat resistance at a high temperature of 150° C., easily maintaining a bag shape when being made into a packaging bag, having less pitch shift during printing or fewer wrinkles in a sealed portion when being heat-sealed, and improving lamination strength. A biaxially oriented polypropylene film comprising a base layer (A), an intermediate layer (B), and a surface layer (C), wherein a stress at 5% elongation (F5) at 23° C. of the biaxially oriented polypropylene film is not lower than 40 MPa in a longitudinal direction and not lower than 160 MPa in a width direction, and a heat shrinkage rate at 150° C. of the biaxially oriented polypropylene film is not higher than 10% in the longitudinal direction and not higher than 30% in the width direction.
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公开(公告)号：US20210388193A1
公开(公告)日：2021-12-16
申请号：US17417849
申请日：2019-12-19
Applicant: TOYOBO CO., LTD.
Inventor： Kouji YAMADA , Kazuhito HORINOUCHI , Mahiro NAKANO , Toru IMAI
Abstract: The invention provides a biaxially oriented polypropylene film with a storage elastic modulus (E′-23) of at least 2.0 GPa in a longitudinal direction and at least 6.0 GPa in a width direction, a storage elastic modulus E′ (E′-80) of at least 1.0 GPa in the longitudinal direction and at least 3.0 GPa in the width direction, a ratio (E′-80/E′-23) of E′-80 to E′-23 of at least 0.4 in both the longitudinal direction and the width direction, a heat shrinkage rate at 150° C. of not higher than 10% in the longitudinal direction and not higher than 30% in the width direction, a heat shrinkage rate at 120° C. of not higher than 2.0% in the longitudinal direction and not higher than 5.0% in the width direction, and a heat shrinkage rate at 120° C. in the longitudinal direction that is lower than the heat shrinkage rate at 120° C. in the width direction.
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公开(公告)号：US20230330977A1
公开(公告)日：2023-10-19
申请号：US18003230
申请日：2021-06-14
Applicant: TOYOBO CO., LTD.
Inventor： Mahiro NAKANO , Toru IMAI
CPC classification number: B32B27/32 , B32B7/022 , B32B7/023 , B32B7/03 , B32B27/08 , C08J5/18 , B32B2250/03 , B32B2250/242 , B32B2307/518 , B32B2307/536 , B32B2307/538 , B32B2310/022 , B32B2323/10 , C08J2323/12
Abstract: The invention provides a biaxially-oriented polypropylene film that contains a base layer (A) comprising a polypropylene resin as a main component, a surface layer (B) provided at one side of the base layer (A), and a surface layer (C) provided at one side of the base layer (A) opposite to the surface layer (B), wherein the surface layer (B) has a wetting tension of 38 mN or more, a surface resistance value of 14.0 LogΩ or more, an arithmetic average roughness (Ra) of 3.0-5.5 nm, a Martens hardness of 248 N/mm2 or less, and a center plane average surface roughness (SRa) of 0.010-0.026 µm, and the surface layer (C) has a center plane average surface roughness (SRa) of 0.020 µm or more and a Martens hardness of 270 N/mm2 or more.
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公开(公告)号：US20220081521A1
公开(公告)日：2022-03-17
申请号：US17417831
申请日：2019-12-19
Applicant: TOYOBO CO., LTD.
Inventor： Kouji YAMADA , Kazuhito HORINOUCHI , Mahiro NAKANO , Toru IMAI
Abstract: The invention provides a biaxially oriented polypropylene film, wherein a relationship between a loop stiffness stress (S [mN]) in a longitudinal direction and a thickness (t [μm]) satisfies the formula S≥0.00020×t3, a relationship between a loop stiffness stress (S [mN]) in a width direction and the thickness (t [μm]) satisfies the formula S≥0.0010×t3, and a heat shrinkage rate of the biaxially oriented polypropylene film at 150° C. is not higher than 10% in the longitudinal direction and not higher than 30% in the width direction, a heat shrinkage rate of the biaxially oriented polypropylene film at 120° C. is not higher than 2.0% in the longitudinal direction and not higher than 5.0% in the width direction, and the heat shrinkage rate at 120° C. in the longitudinal direction is lower than the heat shrinkage rate at 120° C. in the width direction.
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Patent Agency Ranking
公开(公告)号：US20220024111A1
公开(公告)日：2022-01-27
申请号：US17291372
申请日：2019-10-25
Applicant: TOYOBO CO., LTD.
Inventor： Mahiro NAKANO , Masayuki HARUTA
Abstract: The present invention is to provide a method for producing a biaxially oriented polyester film that is superior in mechanical properties, transparency, and heat resistance, and at the same time, superior in secondary processing suitability and printing appearance. Disclosed is a biaxially oriented polyester film, having at least one surface satisfying the following requirements (1) and (2), and the film satisfying the following requirements (3) and (4). (1) A maximum peak height roughness (SRp) is 1.2 μm to 1.6 μm. (2) An arithmetic average roughness (SRa) is 0.024 μm to 0.045 μm. (3) A tensile strength in a longitudinal direction and a width direction is 180 MPa to 300 MPa. (4) A haze is 7% or less.
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公开(公告)号：US20240051275A1
公开(公告)日：2024-02-15
申请号：US18260962
申请日：2022-01-05
Applicant: TOYOBO CO., LTD.
Inventor： Mitsuhiro KASHIWA , Atsushi YAMAZAKI , Mahiro NAKANO
CPC classification number: B32B27/08 , B32B27/32 , B32B27/16 , B65D65/40 , B32B2307/536 , B32B2307/538 , B32B2307/7244 , B32B2307/748 , B32B2255/10 , B32B2307/54 , B32B2270/00 , B32B2307/518 , B32B2250/242 , B32B2255/26 , B32B2255/20 , B32B2255/28 , B32B2553/00 , B32B2307/7246 , B32B2307/746
Abstract: The invention provides a laminated film that includes a substrate layer (A) mainly composed of a polypropylene-based resin, a surface layer (B) on at least one surface of the substrate layer (A), and a coating layer laminated on the surface layer (B), wherein the laminated film satisfies the following requirements (I) to (III): (I) (a)/(b)≤7.00 is satisfied, where (a) is Martens hardness of a coating layer-side surface measured with a test force of 0.1 mN, and (b) is Martens hardness of the coating layer-side surface measured with a test force of 7 mN; (II) a total of a maximum peak height (Rp) and maximum valley depth (Rv) of the coating layer-side surface measured with a scanning probe microscope is 30.0 nm or less; and (III) an oxygen permeation rate measured under conditions of 23° C.×65% RH is 100 cc/m2/day/atm or more and 1200 cc/m2/day/atm or less.
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公开(公告)号：US20220089822A1
公开(公告)日：2022-03-24
申请号：US17417903
申请日：2019-12-19
Applicant: TOYOBO CO., LTD.
Inventor： Kouji YAMADA , Kazuhito HORINOUCHI , Mahiro NAKANO , Toru IMAI
Abstract: Provided is a biaxially oriented polypropylene film that has high stiffness, has excellent heat resistance at a high temperature of 150° C., easily maintains a bag shape when being made into a packaging bag, and has less pitch shift during printing or fewer wrinkles in a sealed portion when being heat-sealed. A biaxially oriented polypropylene film, wherein a half width of a peak derived from an oriented crystal in a width direction in azimuth dependence of a (110) plane of polypropylene α-type crystal obtained by wide-angle X-ray diffraction measurement is not larger than 27°, and a tan δ area in the width direction obtained from a ratio (E′E″) of a storage elastic modulus (E′) to a loss elastic modulus (E″) obtained by dynamic viscoelasticity measurement is not smaller than 0.2 and not larger than 0.4.
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公开(公告)号：US20180050518A1
公开(公告)日：2018-02-22
申请号：US15556961
申请日：2016-03-09
Applicant: TOYOBO CO., LTD.
Inventor： Tadashi NAKAYA , Yoshitomo IKEHATA , Mahiro NAKANO
CPC classification number: B32B15/09 , B32B15/18 , B32B27/08 , B32B27/36 , B32B2250/02 , B32B2250/03 , B32B2270/00 , B32B2307/714 , B32B2307/732 , B32B2439/66 , B32B2439/70 , B65D25/14 , B65D25/34
Abstract: It is provided that a polyester-based film for laminating a metal plate having corrosion resistance, being capable of being adhered to a metal plate at a relatively low temperature, having excellent can-making properties, and easily repairing a joint part after can making. A polyester-based film for laminating a metal plate constituted by two layers of Layer A and Layer B, wherein a resin constituting Layer A is a polyester-based resin having a total content of ethylene terephthalate units and diethylene terephthalate units of not less than 95% by mol and not more than 98% by mol, in 100% by mol of total constituent units of the polyester, and a resin constituting Layer B comprises 80 to 100% by mass of a polyester-based resin (B1) mainly including ethylene terephthalate and 0 to 20% by mass of a polyester-based resin (B2) having composition different from composition of the polyester-based resin (B1).
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公开(公告)号：US20240391222A1
公开(公告)日：2024-11-28
申请号：US18696021
申请日：2022-09-21
Applicant: TOYOBO CO., LTD.
Inventor： Daisuke IWATA , Atsushi YAMAZAKI , Mitsuhiro KASHIWA , Mahiro NAKANO , Yuya YAMAGUCHI
Abstract: Provided is a laminated film having a base layer (A) mainly composed of polypropylene-based resin, a surface layer (B) on one surface of the base layer (A), and a surface layer (C) on the other surface, and an inorganic thin film layer further laminated on the surface layer (B) and an organic resin layer (E) in this order, and satisfying the following (a) to (d): (a) a deposition amount of the organic resin layer (E) is 0.10 g/m2 or larger and 0.50 g/m2 or smaller; (b) a Martens hardness when a surface on the organic resin layer side of the laminated film is measured with a test force of 0.1 mN is 248 N/mm2 or less; (c) a haze of the laminated film is 6% or less; and (d) an oxygen permeability of the laminated film in an environment of 23° C. and 65% RH is 10 mL/m2·d·MPa or less.
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