-
公开(公告)号：US20200039114A1
公开(公告)日：2020-02-06
申请号：US16494912
申请日：2018-02-22
Applicant: Toray Industries, Inc.
Inventor： Takashi Ochi , So Nishino , Tamotsu Suzuki , Junichi Aoki
Abstract: The present invention relates to a method of producing a coating liquid impregnated sheet-like reinforcing fiber bundle formed by applying a coating liquid to a sheet-like reinforcing fiber bundle that is unidirectionally arranged continuous reinforcing fibers long in one direction. The present invention provides a production method and a coating device of a coating liquid impregnated sheet-like reinforcing fiber bundle, wherein the method and device can effect continuous running without clogging of generated fuzz even at a high running speed and effect efficient impregnation of a coating liquid into the sheet-like reinforcing fiber bundle. The present invention relates to a method of producing a coating liquid impregnated sheet-like reinforcing fiber bundle, including allowing a sheet-like reinforcing fiber bundle, which is unidirectionally arranged reinforcing fibers, to pass substantially vertically downward through the inside of a coating section storing a coating liquid, whereby the method provides the sheet-like reinforcing fiber bundle with the coating liquid; wherein the coating section includes a liquid pool and a narrowed section which are in communication with each other; wherein the liquid pool has a portion whose cross-sectional area decreases continuously along a running direction of the sheet-like reinforcing fiber bundle, and wherein the narrowed section has a slit-like cross-section and has a smaller cross-sectional area than the top side of the liquid pool.
-
公开(公告)号：US20180051125A1
公开(公告)日：2018-02-22
申请号：US15558087
申请日：2016-03-16
Applicant: TORAY INDUSTRIES, INC.
Inventor： Junichi Aoki , Atsuhito Arai , Hiroaki Sakata , Takashi Ochi
CPC classification number: C08G59/245 , C08G59/20 , C08G59/3227 , C08G59/38 , C08G59/5033 , C08G73/026 , C08G73/1071 , C08G75/23 , C08J5/24 , C08K3/046 , C08L63/00 , C08L2205/035 , C08L81/06 , C08L79/08
Abstract: Provided is an epoxy resin composition for giving a carbon fiber-reinforced composite material that simultaneously achieves tensile strength and compressive strength. An epoxy resin composition containing at least the following constituent elements [A]-[D] wherein the epoxy resin composition contains 5-50 mass % of constituent element [A] and 20-95 mass % of constituent element [B] relative to 100 mass % of total epoxy resin weight. [A]: at least one epoxy resin selected from 1,2-bis(glycidyloxy)benzene, 1,3-bis(glycidyloxy)benzene, 1,4-bis(glycidyloxy)benzene, derivatives of these, and epoxy resins having a structure represented by general formula [1] (in general formula [1], at least one of R1-R5 and at least one of R6-R10 is a glycidyl ether group, and the other R1-R10 represent any of a hydrogen atom, halogen atom, or aliphatic hydrocarbon group having four or fewer carbon atoms.); [B]: glycidylamine epoxy resin having three or more glycidyl groups per molecule; [C]: thermoplastic resin soluble in epoxy resin; [D]: epoxy resin curing agent.
-
公开(公告)号：US20240199831A1
公开(公告)日：2024-06-20
申请号：US17909821
申请日：2021-03-24
Applicant: Toray Industries, Inc.
Inventor： Junichi Aoki , Takayuki Fujiwara , Shinji Kochi , Daisuke Kido , Naoya Takeda , Bon Aizawa
CPC classification number: C08J5/243 , C08L63/00 , C08J2363/02 , C08J2471/08 , C08J2481/06
Abstract: Provided is a prepreg including reinforced fibers and a resin composition, in which when an average thickness of the prepreg is designated as D, a loss tangent tanδ at a slit processing temperature when the resin composition present in a portion located at a depth of D/10 from a surface of the prepreg is evaluated using an 8-mm plate at 50 rad/s or more is designated as y, and a water absorption amount when the prepreg collected in a size of 100×100 mm is immersed in 5-mm water for 5 minutes is designated as x (hereinafter, referred to as water pickup evaluation), a relationship of Formula 1 below is satisfied. Provided is a prepreg that provides a slit tape having excellent processability and quality, which is suitably used for producing a fiber-reinforced composite material using an automatic lamination device.
-
14.发明授权公开(公告)号：US11566117B2
公开(公告)日：2023-01-31
申请号：US17266396
申请日：2019-08-20
Applicant: Toray Industries, Inc.
Inventor： Takashi Ochi , So Nishino , Junichi Aoki , Yoshikazu Kono , Tamotsu Suzuki , Takashi Ikushima
Abstract: A method of producing a prepreg is described, in which a matrix resin is applied to a reinforcing fiber sheet in which the sheet can continuously run without clogging due to generated fuzz even at a high running speed and where the reinforcing fiber sheet can be efficiently impregnated with the matrix resin. A method of producing a prepreg includes allowing a reinforcing fiber sheet to pass substantially vertically downward through the inside of a coating section storing a matrix resin to apply the matrix resin to the reinforcing fiber sheet; and then applying a resin film to a primary impregnate prepreg withdrawn from the coating section.
-
公开(公告)号：US11224993B2
公开(公告)日：2022-01-18
申请号：US16494912
申请日：2018-02-22
Applicant: Toray Industries, Inc.
Inventor： Takashi Ochi , So Nishino , Tamotsu Suzuki , Junichi Aoki
Abstract: The present invention relates to a method of producing a coating liquid impregnated sheet-like reinforcing fiber bundle formed by applying a coating liquid to a sheet-like reinforcing fiber bundle that is unidirectionally arranged continuous reinforcing fibers long in one direction. The present invention provides a production method and a coating device of a coating liquid impregnated sheet-like reinforcing fiber bundle, wherein the method and device can effect continuous running without clogging of generated fuzz even at a high running speed and effect efficient impregnation of a coating liquid into the sheet-like reinforcing fiber bundle. The present invention relates to a method of producing a coating liquid impregnated sheet-like reinforcing fiber bundle, including allowing a sheet-like reinforcing fiber bundle, which is unidirectionally arranged reinforcing fibers, to pass substantially vertically downward through the inside of a coating section storing a coating liquid, whereby the method provides the sheet-like reinforcing fiber bundle with the coating liquid; wherein the coating section includes a liquid pool and a narrowed section which are in communication with each other; wherein the liquid pool has a portion whose cross-sectional area decreases continuously along a running direction of the sheet-like reinforcing fiber bundle, and wherein the narrowed section has a slit-like cross-section and has a smaller cross-sectional area than the top side of the liquid pool.
-
Patent Agency Ranking
16.发明授权公开(公告)号：US11208535B2
公开(公告)日：2021-12-28
申请号：US16494825
申请日：2018-02-22
Applicant: Toray Industries, Inc.
Inventor： Takashi Ochi , Junichi Aoki , Takaaki Yamashita
Abstract: The invention enhances the production efficiency in the production of prepreg by allowing the arrangement property and rectilinearity of reinforcing fibers to be well maintained, allowing the basis weight uniformity of an applied resin to be good, and further allowing a high line speed and suppression of contamination in the process to be achieved. The invention provides a method of producing a prepreg, which includes: discharging a molten resin from a discharge portion; introducing the discharged resin by an air flow; and capturing the discharged resin on a reinforcing fiber sheet conveyed continuously, wherein a key point is that the discharged resin is captured in a region in which the reinforcing fiber sheet is conveyed substantially in planar form.
-
17.发明申请公开(公告)号：US20210292496A1
公开(公告)日：2021-09-23
申请号：US17266396
申请日：2019-08-20
Applicant: Toray Industries, Inc.
Inventor： Takashi Ochi , So Nishino , Junichi Aoki , Yoshikazu Kono , Tamotsu Suzuki , Takashi Ikushima
Abstract: A method of producing a prepreg is described, in which a matrix resin is applied to a reinforcing fiber sheet in which the sheet can continuously run without clogging due to generated fuzz even at a high running speed and where the reinforcing fiber sheet can be efficiently impregnated with the matrix resin. A method of producing a prepreg includes allowing a reinforcing fiber sheet to pass substantially vertically downward through the inside of a coating section storing a matrix resin to apply the matrix resin to the reinforcing fiber sheet; and then applying a resin film to a primary impregnate prepreg withdrawn from the coating section.
-
公开(公告)号：US20210213649A1
公开(公告)日：2021-07-15
申请号：US15733988
申请日：2019-05-23
Applicant: Toray Industries, Inc.
Inventor： Takashi Ochi , So Nishino , Tamotsu Suzuki , Junichi Aoki
Abstract: The present invention is a method of producing a coating liquid-impregnated reinforcing fiber fabric 1b, including allowing a reinforcing fiber fabric 1a to pass substantially vertically downward through the inside of a coating section 20 storing a coating liquid 2 to provide the reinforcing fiber fabric 1a with the coating liquid 2; wherein the coating section 20 includes a liquid pool and a narrowed section which are in communication with each other; wherein the liquid pool has a portion whose cross-sectional area decreases continuously along a running direction of the reinforcing fiber fabric 1a, wherein the narrowed section has a slit-like cross-section and has a smaller cross-sectional area than the top side of the liquid pool, and wherein the vertical height of the portion whose cross-sectional area decreases continuously in the liquid pool is 10 mm or more.
-
公开(公告)号：US10851217B2
公开(公告)日：2020-12-01
申请号：US15756815
申请日：2016-08-31
Applicant: TORAY INDUSTRIES, INC.
Inventor： Junichi Aoki , Koji Furukawa , Kyoko Tamaru , Atsuhito Arai , Hiroaki Sakata , Takashi Ochi
IPC: C08J5/24 , B32B27/18 , B32B27/26 , B32B27/38 , C08G59/32 , C08G59/38 , C08G59/50 , C08G59/56 , C08L63/00 , C08J5/04
Abstract: Provided are: an epoxy resin composition that gives a carbon fiber-reinforced composite material having excellent moldability, heat resistance, and mechanical properties such as tensile strength and compressive strength; and a prepreg. An epoxy resin composition containing at least the following constituent elements [A]-[D]. The epoxy resin composition contains 5-50 parts by mass of constituent element [A] and 20-95 parts by mass of constituent element [B], as well as 1-25 parts by mass of constituent element [C], relative to 100 parts by mass of the total amount of epoxy resin. Constituent element [A] is an epoxy resin having primarily two epoxy groups and one or more condensed polycyclic aromatic hydrocarbon skeletons within a repeating unit of a specific structure; [B] is a glycidylamine epoxy resin having three or more glycidyl groups in the molecule; [C] is a sulfone or imide thermoplastic resin; and [D] is an epoxy resin curing agent.
-
公开(公告)号：US10280251B2
公开(公告)日：2019-05-07
申请号：US15558087
申请日：2016-03-16
Applicant: TORAY INDUSTRIES, INC.
Inventor： Junichi Aoki , Atsuhito Arai , Hiroaki Sakata , Takashi Ochi
IPC: C08J5/24 , C08K3/04 , C08G59/20 , C08G59/24 , C08G59/32 , C08G59/38 , C08G59/50 , C08G73/02 , C08G73/10 , C08G75/23 , C08L63/00 , C08L79/08 , C08L81/06
Abstract: Provided is an epoxy resin composition for giving a carbon fiber-reinforced composite material that simultaneously achieves tensile strength and compressive strength. An epoxy resin composition containing at least the following constituent elements [A]-[D] wherein the epoxy resin composition contains 5-50 mass % of constituent element [A] and 20-95 mass % of constituent element [B] relative to 100 mass % of total epoxy resin weight. [A]: at least one epoxy resin selected from 1,2-bis(glycidyloxy)benzene, 1,3-bis(glycidyloxy)benzene, 1,4-bis(glycidyloxy)benzene, derivatives of these, and epoxy resins having a structure represented by general formula [1] (in general formula [1], at least one of R1-R5 and at least one of R6-R10 is a glycidyl ether group, and the other R1-R10 represent any of a hydrogen atom, halogen atom, or aliphatic hydrocarbon group having four or fewer carbon atoms.); [B]: glycidylamine epoxy resin having three or more glycidyl groups per molecule; [C]: thermoplastic resin soluble in epoxy resin; [D]: epoxy resin curing agent.
-
-
-
-
-
-
-
-
-
Search Results
20
records
(took 0.022 seconds)
