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公开(公告)号：US20220033640A1
公开(公告)日：2022-02-03
申请号：US17276659
申请日：2019-09-20
Applicant: Toray Industries, Inc.
Inventor： Swezin Than Tun , Jonathan Hughes , Nobuyuki Arai
Abstract: An epoxy resin composition is provided which includes a poly-naphthalene-based epoxy resin having two or more epoxy groups per molecule combined with a non-linear multi-phenyl epoxy resin and an additional epoxy resin having an epoxy functionality of 3 or more, as well as a prepreg, and a fiber-reinforced composite material prepared using the epoxy resin composition. More specifically, an epoxy resin composition is provided which contains a combination of particular types of epoxy resins and curatives that, when cured, provides high flexural modulus and that is suitable for preparing a fiber-reinforced composite material capable of withstanding extreme use environments such as low-temperature environments and high-temperature moisture-absorbing environments. In addition, epoxy resin systems are provided which are capable of achieving a high Tg along with good thermal stability for long periods of time at elevated temperatures (e.g., 180° C. or more) when cured at 210° C. for 2 hours.
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公开(公告)号：US12146051B2
公开(公告)日：2024-11-19
申请号：US17276659
申请日：2019-09-20
Applicant: Toray Industries, Inc.
Inventor： Swezin Than Tun , Jonathan Hughes , Nobuyuki Arai
Abstract: An epoxy resin composition is provided which includes a poly-naphthalene-based epoxy resin having two or more epoxy groups per molecule combined with a non-linear multi-phenyl epoxy resin and an additional epoxy resin having an epoxy functionality of 3 or more, as well as a prepreg, and a fiber-reinforced composite material prepared using the epoxy resin composition. More specifically, an epoxy resin composition is provided which contains a combination of particular types of epoxy resins and curatives that, when cured, provides high flexural modulus and that is suitable for preparing a fiber-reinforced composite material capable of withstanding extreme use environments such as low-temperature environments and high-temperature moisture-absorbing environments. In addition, epoxy resin systems are provided which are capable of achieving a high Tg along with good thermal stability for long periods of time at elevated temperatures (e.g., 180° C. or more) when cured at 210° C. for 2 hours.
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Patent Agency Ranking
公开(公告)号：US09688891B2
公开(公告)日：2017-06-27
申请号：US14650138
申请日：2013-12-23
Applicant: Toray Industries, Inc.
Inventor： Felix N. Nguyen , Kenichi Yoshioka , Swezin Than Tun , Alfred P. Haro
IPC: B32B5/28 , B32B27/04 , B32B27/20 , C09J163/00 , C08J5/04 , C08K3/36 , C08J5/24 , C08J5/00 , C08J5/10 , B32B27/38
CPC classification number: C09J163/00 , C08J5/005 , C08J5/04 , C08J5/042 , C08J5/10 , C08J5/24 , C08J2363/00 , C08J2363/02 , C08J2363/04 , C08K3/36
Abstract: A fiber reinforced polymer composition is provided comprising a fiber and an adhesive composition, wherein the adhesive composition comprises at least a thermosetting resin, a curing agent, and a hard interfacial material. When cured, the adhesive composition forms good bonds to the reinforcing fiber, and an interfacial region between the reinforcing fiber and the adhesive composition is formed which comprises the hard interfacial material. Additional embodiments include a prepreg and a method of manufacturing a composite article by curing the adhesive composition and the reinforcing fiber.
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公开(公告)号：US20200048453A1
公开(公告)日：2020-02-13
申请号：US16340530
申请日：2017-10-19
Applicant: Toray Industries, Inc.
Inventor： Benjamin Lehman , Jonathan Hughes , Swezin Than Tun , Nobuyuki Arai
Abstract: An epoxy resin composition for a fiber-reinforced composite material, containing at least components [A], [B], [C], [D], and [E], wherein the epoxy resin composition when cured has a glass transition temperature greater than 220° C. and a storage modulus, as defined by a specific method, less than 35 MPa, as determined from an elastic shear modulus measured at a temperature of at least 35° C. higher than the glass transition temperature, wherein the components [A], [B], [C], [D], and [E] are:[A] at least one naphthalene-based epoxy resin having an EEW between 190 and 260 g/mol; [B] at least one epoxy resin having a functionality of three or more; [C] at least one amine curing agent; [D] at least one latent acid catalyst; and [E] at least one cycloaliphatic epoxy resin. This epoxy resin composition is useful in the molding of fiber-reinforced composite materials. More particularly, it is possible to offer an epoxy resin composition for a fiber-reinforced composite material where the cured material obtained by heating has high levels of heat resistance and microcrack resistance.
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公开(公告)号：US20190169356A1
公开(公告)日：2019-06-06
申请号：US16323147
申请日：2017-08-24
Applicant: Toray Industries, Inc.
Inventor： Swezin Than Tun , Jonathan Hughes , Nobuyuki Arai , Benjamin Lehman
Abstract: The embodiments herein relate to an epoxy resin composition containing a specific type of amine-based epoxy resin containing four epoxy groups per molecule, a prepreg, and a fiber-reinforced composite material. More specifically, the embodiments herein relate to an epoxy resin composition containing a combination of particular types of epoxy resin and curatives that provides high flexural modulus that is suitable for preparing a fiber-reinforced composite material capable of withstanding extreme use environments such as low-temperature environments and high-temperature moisture-absorbing environments. In addition, the embodiments herein relate to epoxy resin systems capable of achieving a high degree of cure (e.g., 85% or more) within a relatively short period of time (e.g., less than two hours) at a relatively low temperature (e.g., 132° C.).
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公开(公告)号：US20210269635A1
公开(公告)日：2021-09-02
申请号：US17276623
申请日：2019-09-20
Applicant: Toray Industries, Inc.
Inventor： Swezin Than Tun , Jonathan Hughes , Nobuyuki Arai
IPC: C08L63/00
Abstract: This invention relates to an epoxy resin composition for fiber-reinforced composite materials, which contains the following constituent components (A), (B), and (C). Component (A) contains at least one poly-naphthalene-based epoxy resin, component (B) contains at least one alicyclic epoxy resin and/or a divinylarene diepoxide resin, and component (C) contains at least one amine curing agent. This epoxy resin composition, containing a specific combination of particular types of epoxy resin and curatives, provides high heat resistance and high flexural modulus under extreme environmental conditions. More particularly, a cured resin prepared by the epoxy resin composition offers well balanced mechanical properties that are suitable for preparing fiber-reinforced composite materials useful in aircraft components, spacecraft components, automobile components, artificial satellites components, industrial components, and the like.
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公开(公告)号：US10829633B2
公开(公告)日：2020-11-10
申请号：US16340530
申请日：2017-10-19
Applicant: Toray Industries, Inc.
Inventor： Benjamin Lehman , Jonathan Hughes , Swezin Than Tun , Nobuyuki Arai
Abstract: An epoxy resin composition for a fiber-reinforced composite material, containing at least components [A], [B], [C], [D], and [E], wherein the epoxy resin composition when cured has a glass transition temperature greater than 220° C. and a storage modulus, as defined by a specific method, less than 35 MPa, as determined from an elastic shear modulus measured at a temperature of at least 35° C. higher than the glass transition temperature, wherein the components [A], [B], [C], [D], and [E] are:[A] at least one naphthalene-based epoxy resin having an EEW between 190 and 260 g/mol;[B] at least one epoxy resin having a functionality of three or more;[C] at least one amine curing agent;[D] at least one latent acid catalyst; and[E] at least one cycloaliphatic epoxy resin.This epoxy resin composition is useful in the molding of fiber-reinforced composite materials. More particularly, it is possible to offer an epoxy resin composition for a fiber-reinforced composite material where the cured material obtained by heating has high levels of heat resistance and microcrack resistance.
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