公开(公告)号：US20220063218A1

公开(公告)日：2022-03-03

申请号：US17385409

申请日：2021-07-26

Applicant: TSUDAKOMA KOGYO KABUSHIKI KAISHA ,  KANAZAWA INSTITUTE OF TECHNOLOGY

Inventor： Isao NISHIMURA ,  Kiyoshi UZAWA ,  Katsuhiko NUNOTANI

IPC: B29C70/56 ,  B29C70/52

Abstract: A continuous forming apparatus of a fiber reinforced composite includes a tension detection mechanism, a drive motor, and a drive control device. The drive control device is configured so that a material roll is rotationally driven in a delivery direction of a reinforced fiber base material during a time period from a time point of end of pressurization in a forming process to a time point of end of a pulling-out process, and is also configured to perform tension control on the reinforced fiber base material based on a detected tension value from the tension detection mechanism and a target tension value, during a time period from a time point of start of the pulling-out process to a time point of end of the pressurization in the forming process in a next forming operation.

公开(公告)号：US20180022832A1

公开(公告)日：2018-01-25

申请号：US15521200

申请日：2015-10-23

Applicant: NATIONAL UNIVERSITY CORPORATION KANAZAWA UNIVERSITY ,  Kanazawa Institute of Technology

Inventor： Ryohei KAKUCHI ,  Kazuaki NINOMIYA ,  Yoshiki SHIBATA ,  Kiyoshi UZAWA ,  Tomoki OGOSHI ,  Katsuhiro MAEDA ,  Tomoyuki IKAI ,  Kenji TAKAHASHI

IPC: C08B3/06 ,  C08B11/02 ,  C08B3/18 ,  C07G1/00

CPC classification number: C08B3/06 ,  C07G1/00 ,  C08B3/00 ,  C08B3/18 ,  C08B11/00 ,  C08B11/02 ,  Y02P20/542

Abstract: An object is to provide a method for producing a polysaccharide derivative without using a catalyst, a cocatalyst, or an active compound by esterification, etherification, or the like, from a polysaccharide such as cellulose as a source material, while maintaining a high molecular weight. Another object is to provide a method for producing a cellulose derivative in a separated condition directly from biomass containing lignocellulose. A method for producing a polysaccharide derivative of the present invention is characterized in that a reaction is carried out in a mixture comprising: a source material comprising a polysaccharide; an ionic liquid for which the pKa of a conjugate acid of an anion in DMSO is 12 to 19 and which is capable of producing a carbene; and a chain or cyclic ester compound or an epoxy compound. Preferably as a source material containing a polysaccharide, a biomass source material containing lignocellulose is used.

公开(公告)号：US20210252767A1

公开(公告)日：2021-08-19

申请号：US17171208

申请日：2021-02-09

Applicant: DAIDO KOGYO CO., LTD. ,  KANAZAWA INSTITUTE OF TECHNOLOGY

Inventor： Takashi MAKARA ,  Yoshiki NAKAMURA ,  Kiyoshi UZAWA ,  Katsuhiko NUNOTANI

IPC: B29C53/04 ,  B29C53/84

Abstract: A roll-forming apparatus includes a heating portion, and a shaping portion disposed downstream of the heating portion in a conveyance direction of a fiber reinforced plastic member to shape the fiber reinforced plastic member heated by the heating portion. The shaping portion includes a first forming roller pair, and a second forming roller pair disposed downstream of the first forming roller pair in the conveyance direction. A rotational speed of the second forming roller pair is set higher than a rotational speed of the first forming roller pair to apply a tension in the conveyance direction to the fiber reinforced plastic member between the first forming roller pair and the second forming roller pair.

公开(公告)号：US20250115012A1

公开(公告)日：2025-04-10

申请号：US18894002

申请日：2024-09-24

Applicant: TSUDAKOMA KOGYO KABUSHIKI KAISHA ,  KANAZAWA INSTITUTE OF TECHNOLOGY

Inventor： Isao NISHIMURA ,  Koji YAMAMURA ,  Nobuya KAWAMOTO ,  Kiyoshi UZAWA

IPC: B29C70/52

Abstract: A curve shaping apparatus includes: a heating device provided in a path and heats a reinforcing fiber material; a clamping mechanism switches between a clamping state and a non-clamping state; a swing mechanism including a gripping unit that switches between a gripping state and a non-gripping state, the swing mechanism rotationally drives the gripping unit between an initial position and a rotation position; a shaping mechanism including a shaping mold unit that includes an upper mold, a lower mold, and a pair of side molds for shaping the reinforcing fiber material; a pulling-out mechanism performs a pulling-out operation; and a drive control device configured to control drive of each mechanism so that each process of a rotation process, a pulling-out process, and a shaping process is performed.

公开(公告)号：US20230071573A1

公开(公告)日：2023-03-09

申请号：US18054903

申请日：2022-11-13

Applicant: Kanazawa Institute of Technology

Inventor： Kiyoshi UZAWA ,  Tadashi SAKUMA ,  Nobuaki INUI ,  Hiroki MATSUMOTO ,  Masayoshi HORI

IPC: B29C70/00 ,  B29C70/34 ,  C08J5/24

Abstract: An FRP molded product formed by impregnating a fiber base material with a matrix resin using a flow medium, wherein the flow medium has a sheet shape and comprises fibers made of a phenoxy resin, the matrix resin is an epoxy resin, the fiber base material and the flow medium are stacked, at least part of the flow medium is hardened in a state where the part of the flow medium is integrated with the matrix resin by dissolution or adhesion, and the hardened flow medium becomes a design face.

公开(公告)号：US20210171728A1

公开(公告)日：2021-06-10

申请号：US16616907

申请日：2019-06-28

Applicant: SUNCORONA ODA CO., LTD. ,  KANAZAWA INSTITUTE OF TECHNOLOGY

Inventor： Keisuke SONE ,  Masaki KOBAYASHI ,  Hirofumi NISHIDA ,  Kiyoshi UZAWA ,  Hisai UEDA

IPC: C08J5/24 ,  C08K3/04 ,  C08K7/06

Abstract: An object of the present invention is to provide a fiber-reinforced thermoplastic resin sheet which can be manufactured into a molded body exhibiting excellent appearance quality as well as exhibits both high moldability and strength and a manufacturing method of such a fiber-reinforced thermoplastic resin sheet. The present invention relates to a fiber-reinforced thermoplastic resin sheet which is a random laminated body of a tape-shaped unidirectional prepreg and contains spread reinforcement fibers and a polymer (a) and in which the polymer (a) is a polymer of at least a bisphenol A type epoxy compound represented by Formula (1): [where n is an integer of 1 to 4] and a bisphenol compound selected from the group consisting of bisphenol A, bisphenol F, bisphenol S, bisphenol B, bisphenol E, and bisphenol P, and Mwa is 25,000 or more and a proportion (Mwb/Mwa) of Mwb to Mwa is 1.01 to 1.8, where Mwa denotes a weight average molecular weight of the polymer (a) and Mwb denotes a weight average molecular weight of a polymer (b) contained in a heat-treated fiber-reinforced thermoplastic resin sheet acquired by heating the fiber-reinforced thermoplastic resin sheet at 180° C. for 1 hour.