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公开(公告)号：US20240124705A1
公开(公告)日：2024-04-18
申请号：US18262163
申请日：2022-01-26
Applicant: TOYOBO CO., LTD.
Inventor： Nobuyuki MANABE , Masayuki HARUTA
CPC classification number: C08L67/02 , B29C48/0018 , B29C48/022 , B29C48/08 , B29C48/28 , B29C48/288 , C08J5/18 , B29K2067/00 , C08J2367/02 , C08J2467/02
Abstract: The invention provides a biaxially oriented polyester film, which exhibits excellent transparency, is easily subjected to secondary processing, is an environmentally friendly polyester film, and has little variations in physical properties in the machine direction, and a production method therefor. The biaxially oriented polyester film is formed of a polyester resin composition containing particles and 50% by weight or more of a polyester resin composed of biomass-derived ethylene glycol and fossil fuel-derived dicarboxylic acid units, wherein at least one surface of the biaxially oriented polyester film meets requirements (1) to (3): (1) a number of fine protrusions each having a height of less than 3 nm per area of 4×10−12 m2 is 250-600; (2) a number of fine protrusions each having a height of 3 nm or more per area of 4×1012 m2 is 300-600; and (3) an arithmetic mean height Sa is 0.010-0.025 μm.
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公开(公告)号：US20240075719A1
公开(公告)日：2024-03-07
申请号：US18272505
申请日：2022-01-11
Applicant: TOYOBO CO., LTD.
Inventor： Shintaro ISHIMARU , Masayuki HARUTA
CPC classification number: B32B27/08 , B32B27/32 , B65D65/40 , B32B2255/10 , B32B2255/20 , B32B2255/26 , B32B2264/102 , B32B2264/1022 , B32B2264/104 , B32B2270/00 , B32B2307/308 , B32B2307/31 , B32B2307/4026 , B32B2307/518 , B32B2307/54 , B32B2307/7244 , B32B2307/7246 , B32B2307/748 , B32B2307/75 , B32B2439/06 , B41M5/267
Abstract: The present invention provides packaging, which comprises a laminated body including a sealing layer and at least one laser printing layer that can undergo printing by laser irradiation, in which the laser printing layer includes a laser-printed portion printed by laser and a non-printed portion, the sealing layer is at least an innermost layer, and at least a part of the sealing layers of the innermost layers are pasted to each other, and the difference in color L* value between the laser-printed portion and the non-printed portion, the adhesive strength between the sealing layers, and the lamination strength between the laser printing layer and a layer adjacent to at least one side of the laser printing layer are within predetermined ranges; and is laser-printed packaging composed of a laminated body excellent in lamination strength and visual perceptibility of printed portions without using ink containing a laser pigment.
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公开(公告)号：US20240002614A1
公开(公告)日：2024-01-04
申请号：US18247309
申请日：2021-09-22
Applicant: TOYOBO CO., LTD.
Inventor： Masayuki HARUTA , Norimi TABOTA
CPC classification number: C08J5/18 , B29C48/0021 , B29K2995/0049 , B29K2995/0026 , B29L2031/744
Abstract: The invention provides a heat-shrinkable polyester film characterized by (1) a hot-water heat shrinkage rate in a width direction of the film of 40%-80% by immersing the film in hot-water at 90° C. for 10 seconds; (2) a hot-water heat shrinkage rate in a longitudinal direction of the film of 5%-10% by immersing the film in hot-water at 90° C. for 10 seconds; (3) a maximum peak height Sp on at least one surface of the film of 0.8-3.0 μm; (4) an arithmetical mean height Sa on at least one surface of the film of 0.03-0.2 μm; and (5) a degassing time for removing air from between the two identical polyester films is 14 seconds or less, wherein the films are formed by stacking a front surface of the one film on a back surface of the other film.
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公开(公告)号：US20240001658A1
公开(公告)日：2024-01-04
申请号：US18030110
申请日：2021-10-06
Applicant: TOYOBO CO., LTD.
Inventor： Shintaro ISHIMARU , Masayuki HARUTA
CPC classification number: B32B27/20 , B32B27/08 , B32B27/32 , B32B27/36 , B65D65/40 , B32B2270/00 , B32B2307/4026 , B32B2264/1022 , B32B2264/104 , B32B2307/542 , B32B2250/40 , B32B2250/03 , B32B2250/24 , B32B2307/518 , B32B2307/75 , B32B2307/414 , B32B2307/554 , B32B2307/54 , B32B2307/7376 , B32B2435/02 , B32B2519/00
Abstract: A display body characterized in that there is at least one white printing layer permitting printing by means of laser irradiation; said white printing layer has a nonprinted region and a printed region at which laser printing has been carried out; and (1) through (3) are satisfied. (1) An absolute value of a difference in color L* values between the printed region and the nonprinted region is not less than 1.0 but not greater than 10.0. (2) Total luminous transmittance of the nonprinted region is not less than 8% but not greater than 50%. (3) Fractional decrease in thickness of the printed region in a cross-sectional direction is not less than 1 vol % but not greater than 80 vol % of that of the nonprinted region. A high-quality display body, with high productivity is provided.
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公开(公告)号：US20230323021A1
公开(公告)日：2023-10-12
申请号：US18042516
申请日：2021-08-19
Applicant: TOYOBO CO., LTD.
Inventor： Masayuki HARUTA
IPC: C08G63/183 , C08J5/18 , C08L67/02
CPC classification number: C08G63/183 , C08J5/18 , C08L67/02 , C08J2367/02 , C08L2205/03 , C08L2205/025
Abstract: The invention provides a heat-shrinkable polyester film with high heat shrinkage ratio in a main shrinkage direction and is also satisfactorily recyclable with used beverage PET bottles to produce a recycled PET resin. The heat-shrinkable polyester film comprises 95-100 mol % of dicarboxylic acid and 0-5 mol % of isophthalic acid in 100 mol % of whole dicarboxylic acid component, 85-98 mol % of ethylene terephthalate unit in 100 mol % of whole ester unit, and 2-15 mol % of diethylene glycol in 100 mol % of whole polyol component, wherein the film has the predetermined hot-water heat shrinkage ratio, as well as the melting peak temperature, the amount of exothermic heat in crystallizing, and the amount of endothermic heat in melting within the predetermined range which are determined through differential scanning calorimetry (DSC) in heating the film to be melted, quenching the film, and re-heating the film.
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Patent Agency Ranking
公开(公告)号：US20230001619A1
公开(公告)日：2023-01-05
申请号：US17784393
申请日：2020-12-08
Applicant: TOYOBO CO., LTD.
Inventor： Nobuyuki MANABE , Masayuki HARUTA
IPC: B29C48/08 , B29C48/00 , B29C48/285
Abstract: [Problem] To provide: a biaxially oriented polyester film that exhibits excellent transparency, enables easy secondary processing such as coating and vapor deposition, provides excellent post-secondary-processing properties, and is environmentally friendly in that the film is made from polyester resins recycled from the market and society, including those from PET bottles; and a production method for such a film. [Solution] A biaxially oriented polyester film comprising a polyester resin composition containing particles and polyester resins recycled from the market and society, including those from PET bottles, the film having at least one surface that satisfies all requirements (1)-(3). (1) The number of fine projections having a height less than 3 nm per an area of 4×10-12m2 is 250-600. (2) The number of fine projections having a height not less than 3 nm per an area of 4×10-12m2 is 300-600. (3) The arithmetic average height Sa is 0.01-0.025 μm.
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公开(公告)号：US20220274731A1
公开(公告)日：2022-09-01
申请号：US17629484
申请日：2020-07-17
Applicant: TOYOBO CO., LTD.
Inventor： Masafumi INOUE , Masayuki HARUTA
Abstract: A heat-shrinkable polyester film that has (1) a hot-water heat shrinkage of 40% or more in a main shrinkage direction of the film when immersed in hot water of 98° C. for 10 seconds; (2) a planar orientation coefficient of 0.035-0.070; (3) ethylene terephthalate as a main constituent component and 6-25 mol % diethylene glycol (DEG) constituent in 100 mol % of polyhydric alcohol in all the polyester resin constituting the film; (4) a maximum shrinkage stress of 2-17 MPa in the main shrinkage direction of the film when measured in hot air of 90° C.; and (5) a tensile elongation at break of 20% or more in a direction orthogonal to the main shrinkage direction after the film is aged in an atmosphere with an atmospheric temperature of 40° C. and a relative humidity of 85% for 28 days.
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公开(公告)号：US20210339973A1
公开(公告)日：2021-11-04
申请号：US17285777
申请日：2019-10-25
Applicant: TOYOBO CO., LTD.
Inventor： Nobuyuki MANABE , Masayuki HARUTA
Abstract: Provided is a polyester film roll which has less wrinkles and film surface defects, exhibits no deviation of winding, and is suitable for secondary processing such as coating and vapor deposition. The polyester film roll is obtained by winding a biaxially oriented polyester film around a core, and is characterized by satisfying requirements (1)-(3) below: (1) the average winding hardness of the surface of the polyester film roll is in the range of 500-700; (2) the variation rate of the winding hardness of the surface of the polyester film roll in the film width direction is 1-5%; and (3) the variation rate of the average winding hardness from the surface of the polyester film roll to the core is 3-10%.
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公开(公告)号：US20210246301A1
公开(公告)日：2021-08-12
申请号：US17041999
申请日：2019-03-14
Applicant: TOYOBO CO., LTD.
Inventor： Shintaro ISHIMARU , Masayuki HARUTA
Abstract: The invention provides a heat-shrinkable polyester-based film, where the heat-shrinkage ratio in the width direction is high and the irregularity of thickness is small. The heat-shrinkable polyester-based film of the present invention contains 90 mol % or more of ethylene terephthalate unit based on 100 mol % of whole ester unit, wherein, the heat-shrinkable polyester-based film satisfies the requirements: (1) heat-shrinkage ratio in a width direction measured by shrinking the film for 10 seconds in 90° C. hot water is 50%-75%, (2) heat-shrinkage ratio in a longitudinal direction measured by shrinking the film for 10 seconds in 90° C. hot water is −6% or more and 14% or less, (3) heat-shrinkage ratio in the longitudinal direction measured by shrinking the film for 10 seconds in 70° C. hot water is -6% or more and 6% or less, and (4) irregularity of thickness in the width direction is 1%-20%.
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公开(公告)号：US20210016913A1
公开(公告)日：2021-01-21
申请号：US16320477
申请日：2017-07-24
Applicant: TOYOBO CO., LTD.
Inventor： Masayuki HARUTA
Abstract: The invention provides a heat-shrinkable film that has (1) a glass transition temperature (Tg) of 90-140° C.; (2) shrinkage of 12% or less in a main shrinkage direction when treated in glycerin at 80° C. for 10 seconds; (3) shrinkage of 12% or less in a direction orthogonal to the main shrinkage direction when treated in glycerin at 140° C. for 10 seconds; (4) shrinkage of 30%-80% in the main shrinkage direction when treated in glycerin at 140° C. for 10 seconds; (5) a tensile elongation at break of 10% or more both in the main shrinkage direction and the orthogonal direction after aging of 672 hours at 50° C. and 70% RH; and (6) a difference of 5% or less between shrinkage at 140° C. in the main shrinkage direction after aging of 672 hours at 50° C. and 70% RH, and shrinkage at 140° C. in the main shrinkage direction before the aging.
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