公开(公告)号：US20220266580A1

公开(公告)日：2022-08-25

申请号：US17765623

申请日：2020-08-26

Applicant: TOYOBO CO., LTD.

Inventor： Takamichi GOTO ,  Takuro ENDO

IPC: B32B27/34 ,  B32B7/12 ,  B32B27/08 ,  B32B27/20 ,  B32B37/15 ,  B32B38/00 ,  B29C55/14 ,  B29C55/00 ,  B29C48/00 ,  B29C48/21

Abstract: A multilayered stretched polyamide film which is biaxially stretched, and comprises three layers composed of a polyamide resin composition and comprising layer B as an easily adhesive layer, layer A as a base layer, and layer C as an easily slippery layer in this order, wherein the film satisfies the following (1) to (4); (1) the layer A contains 50 to 90% by mass of polyamide 6 and 10 to 50% by mass of a polyamide 6 copolymer in which a ratio of a copolymerization component in the copolymer is 3 to 35% by mass; (2) the layer B contains 0 to 40% by mass of polyamide 6 and 60 to 100% by mass of the polyamide 6 copolymer in which a ratio of the copolymerization component in the copolymer is 3 to 35% by mass; (3) the layer C contains 70% by mass or more of polyamide 6 and 0.05 to 1% by mass of fine particles having an average diameter of 0.1 to 10 μm; (4) the film has tensile strength at break of 150 MPa or more both in MD direction and TD direction; and (5) the film has laminate strength of 3.3 N/15 mm or more.

公开(公告)号：US20220259431A1

公开(公告)日：2022-08-18

申请号：US17631227

申请日：2020-07-29

Applicant: TOYOBO CO., LTD.

Inventor： Takuro ENDO ,  Takamichi GOTO ,  Atsushi YAMAZAKI

IPC: C08L77/06 ,  B32B1/00 ,  B32B27/34 ,  B32B27/20 ,  C23C14/10 ,  C23C14/08 ,  C23C14/30 ,  B32B27/08 ,  B65D65/42 ,  B32B27/16

Abstract: Provided is a gas-barrier polyamide film that has excellent bending pinhole resistance and friction pinhole resistance at the same time, that has excellent gas barrier properties, and that is suitable for use for packaging materials. In addition, the environmental load is reduced by using a plant-derived resin as a raw material. A gas-harrier polyamide film comprising an inorganic thin film layer on at least one surface of a biaxially stretched polyamide film containing 99 to 70% by mass of a polyamide 6 resin and 1 to 30% by mass of a polyamide resin in which at least a part of raw material is derived from biomass.

公开(公告)号：US20170088682A1

公开(公告)日：2017-03-30

申请号：US15311111

申请日：2015-05-19

Applicant: TOYOBO CO., LTD.

Inventor： Takamichi GOTO ,  Tadashi NAKAYA ,  Yoshitomo IKEHATA ,  Kouji YAMADA ,  Kenichi FUNAKI

IPC: C08J5/18 ,  B32B27/36

CPC classification number: C08J5/18 ,  B32B27/08 ,  B32B27/20 ,  B32B27/36 ,  B32B2250/05 ,  B32B2250/244 ,  B32B2255/10 ,  B32B2255/20 ,  B32B2307/518 ,  B32B2307/538 ,  B32B2307/7242 ,  B32B2439/70 ,  C08J2367/02

Abstract: It is provided that a biaxially stretched polybutylene terephthalate film which has all of excellent thickness precision, excellent pin-hole resistance and excellent bag rupture resistance and can achieve excellent barrier properties when a gas barrier layer is provided thereon, and manufacturing method therefor. A biaxially stretched polybutylene terephthalate film, wherein the biaxially stretched polybutylene terephthalate film containing not less than 90% by mass of polybutylene terephthalate, and the plane center average roughness of a 500-nm square region that does not contain a protrusion resulting from inert particles in at least one surface of the film is not more than 1.0 nm.

公开(公告)号：US20230340261A1

公开(公告)日：2023-10-26

申请号：US17906313

申请日：2021-03-24

Applicant: TOYOBO CO., LTD.

Inventor： Kazushige UEDA ,  Takamichi GOTO ,  Takuro ENDO

IPC: C08L77/06 ,  C08J5/18 ,  C09J7/25 ,  C09J7/38 ,  C09J177/06 ,  B32B1/02 ,  B32B27/08 ,  B32B27/34 ,  B32B27/36 ,  B65D65/40 ,  B32B27/18

CPC classification number: C08L77/06 ,  C08J5/18 ,  C09J7/25 ,  C09J7/38 ,  C09J177/06 ,  B32B1/02 ,  B32B27/08 ,  B32B27/34 ,  B32B27/36 ,  B65D65/40 ,  B32B27/18 ,  C08J2377/06 ,  C08J2467/02 ,  B32B2250/24 ,  B32B2307/518 ,  B32B2439/06 ,  B32B2270/00 ,  B32B2307/581 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2250/40 ,  B32B2307/414 ,  B32B2307/54 ,  B32B2307/558 ,  B32B2439/70

Abstract: It is provided that a biaxially stretched polyamide film that has excellent resistance to pinhole formation due to bending, has excellent resistance to pinhole formation due to repeated contact, has excellent piercing resistance, and further can suppress generation of foreign matter during film formation. A biaxially stretched polyimide film comprising a functional layer (layer B) laminated on at least one surface of a base layer (layer A), wherein the base layer (layer A) contains at least (a) 70 to 99% by mass of a polyamide 6 resin, and (b) 1 to 20% by mass of an aliphatic or aromatic-aliphatic polyester resin, and the functional layer (layer B) contains at least 70% by mass or more of a polyamide 6 resin.

公开(公告)号：US20220339921A1

公开(公告)日：2022-10-27

申请号：US17763461

申请日：2020-08-26

Applicant: TOYOBO CO., LTD.

Inventor： Takamichi GOTO ,  Takuro ENDO

IPC: B32B27/34 ,  B32B27/08

Abstract: It is provided that a biaxially stretched polyamide film that is excellent in oxygen gas barrier property, impact resistance, and bending fatigue resistance, which are film qualities necessary for a packaging film and that is carbon-neutral by using a raw material derived from biomass; and a laminated body using the biaxially stretched polyamide film. A biaxially stretched polyamide film in which a resin layer (layer B) mainly composed of an aliphatic polyamide resin is laminated on at least one surface of a resin layer (layer A) mainly composed of a m-xylylene group-containing-polyamide polymer, wherein the biaxially stretched polyamide film satisfies the following requirements (1) to (3): (1) the resin layer (layer A) contains not lower than 70% by mass of the m-xylylene group-containing-polyamide polymer; (2) the resin layer (layer B) mainly composed of the aliphatic polyamide resin contains at least 99 to 60% by mass of polyamide 6 and 1 to 34% by mass of a polyamide polymerized from a biomass-derived raw material; and (3) a thickness of the layer A is not lower than 10% and not higher than 30% of a total thickness of the layer A and the layer B.

公开(公告)号：US20220064393A1

公开(公告)日：2022-03-03

申请号：US17421217

申请日：2020-01-07

Applicant: TOYOBO CO., LTD.

Inventor： Atsushi YAMAZAKI ,  Takamichi GOTO ,  Yukihiro NUMATA

IPC: C08J7/04 ,  C23C14/08 ,  C23C14/10 ,  C23C14/30 ,  C08J5/18 ,  C08L67/02 ,  C08J7/048 ,  C09D179/04

Abstract: The invention provides a laminated film containing at least a base material layer, a covering layer, and an inorganic thin-film layer in this order, wherein (a) the base material layer comprises a resin composition that contains at least 70 mass % of polybutylene terephthalate resin; (b) the laminated film has a piercing strength of 0.6 N/μm or more as measured in accordance with JIS Z 1707 after having undergone a 95° C.-boiling treatment for 30 minutes; (c) the base material layer has a surface orientation degree of 0.144-0.160; and (d) when the value of oxygen transmission rate obtained by measuring the laminated film under a 23° C.×65% RH condition is defined as (A) and the value of oxygen transmission rate obtained by measuring same under a 40° C.×90% RH condition is defined as (B), the barrier value deterioration rate of the laminated film, as calculated as (B/A)×100, is 300% or less.

公开(公告)号：US20200172725A1

公开(公告)日：2020-06-04

申请号：US16616328

申请日：2018-05-28

Applicant: TOYOBO CO., LTD.

Inventor： Noboru TAMARI ,  Takamichi GOTO

IPC: C08L67/02 ,  C08J5/18 ,  B65D65/40

Abstract: To provide a polyester film that has excellent pinhole resistance and bag breakage resistance, excellent adhesiveness after boiling or retorting, and little pitch deviation during printing or position deviation during laminating with a sealant, etc. A biaxially oriented polyester film simultaneously fulfilling (a)-(d). (a) Being a polyester resin composition containing 60%-90% by weight polybutylene teraphthalate resin (A) and 10%-40% by weight of a polyester resin (B) other than the polybutylene teraphthalate resin (A). (b) Having a transesterification ratio of 0.8-3.0 for the film. (c) Having a degree of orientation ΔNx in the film longitudinal direction of 0.049-0.076. (d) Having a thermal shrinkage at 150° C. of no more than 4.0% in both the longitudinal and width directions of the film.

公开(公告)号：US20250073977A1

公开(公告)日：2025-03-06

申请号：US18726573

申请日：2022-12-20

Applicant: TOYOBO CO., LTD.

Inventor： Ayame TORII ,  Takamichi GOTO

IPC: B29C48/08 ,  B29B7/24 ,  B29C31/10 ,  B29C48/00 ,  B29C48/285 ,  B29C48/305 ,  B29C48/88 ,  B29C55/12 ,  B29D7/01 ,  C08J5/18

Abstract: The invention provides a carbon-neutral biaxially stretched polyamide film containing a raw material derived from biomass and having high heat-resistance, impact resistance, and folding pinhole resistance, as well as decreased variability in a degree of biomass in the mechanical (longitudinal) direction. The biaxially stretched polyamide film roll contains biaxially stretched polyamide film containing 70-99% by mass of polyamide 6 resin and 1-30% by mass of a polyamide resin in which at least a part of a raw material is derived from biomass, wherein the film roll has a winding length of from 1,000 m to 60,000 m, a width of from 400 mm to 3,000 mm, and variability in a degree of biomass of 15% or less based on radiocarbon 14C measurement of a biaxially stretched polyamide film sample taken from a surface to a core of the film roll at an interval of 1000 m in an MD direction.

公开(公告)号：US20210198477A1

公开(公告)日：2021-07-01

申请号：US16071292

申请日：2017-01-18

Applicant: TOYOBO CO., LTD.

Inventor： Takamichi GOTO ,  Atsushi YAMAZAKI

IPC: C08L67/02 ,  B32B27/08 ,  B32B27/36 ,  B32B1/02 ,  B29C48/00 ,  B29C55/12

Abstract: To provide a biaxially-stretched polyester film that can be used as a base film for vapor deposition, has excellent barrier properties, dimensional stability, processability, bag breakage resistance, and chemical resistance, and has less transfer of an extract to contents after retorting. A biaxially-stretched polyester film having features (a), (b), (c), and (d) below and having a thickness of 10 to 30 μm: (a) the biaxially-stretched polyester film is formed from a polyester resin composition containing a polybutylene terephthalate resin (A) in a range of 60% by mass or more; (b) a thermal shrinkage of the biaxially-stretched polyester film at 150° C. for 30 minutes is −2 to +2%; (c) thickness accuracy of the biaxially-stretched polyester film is 1 to 20%; and (d) a total amount of 1,4-butanediol and tetrahydrofuran volatilized during heating at a temperature of 135° C. for 60 minutes is not more than 2000 ppb.

公开(公告)号：US20200079955A1

公开(公告)日：2020-03-12

申请号：US16616130

申请日：2018-05-28

Applicant: TOYOBO CO., LTD.

Inventor： Noboru TAMARI ,  Takamichi GOTO

IPC: C08L67/02 ,  C08J5/18 ,  B32B27/08 ,  B32B27/36

Abstract: To obtain a polyester film that has excellent pinhole resistance and bag breakage resistance, excellent adhesiveness after boiling or retorting, and little pitch deviation during printing or position deviation during laminating with a sealant, etc. A biaxially oriented polyester film simultaneously fulfilling (a)-(d). (a) Being a polyester resin composition containing 60%-90% by weight polybutylene teraphthalate resin (A) and 10%-40% by weight of a polyester resin (B) other than the polybutylene teraphthalate resin (A). (b) Having a dimensional change rate at 80° C. of no more than 1.0% in the longitudinal direction of the film, relative to a film base length of a temperature dimensional change curve measured using a thermal mechanical analyzer. (c) Having a thermal shrinkage at 150° C. of no more than 4.0% in both the longitudinal and width directions of the film. (d) Having a film plane orientation ΔP of 0.136-0.154.