公开(公告)号：US20210379877A1

公开(公告)日：2021-12-09

申请号：US17285637

申请日：2019-10-15

Applicant: OSAKA UNIVERSITY ,  TOYODA GOSEI CO., LTD.

Inventor： Shinji TAKANO ,  Koya MATSUNO ,  Yoshinori NAGAMORI ,  Akira HARADA ,  Yoshinori TAKASHIMA ,  Motofumi OSAKI ,  Katsunari INOUE

IPC: B32B27/28 ,  C08J7/12 ,  B32B27/08 ,  B32B37/10 ,  B32B37/06

Abstract: To provide a polyrotaxane composite formed body produced by strong bonding between a crosslinked polyrotaxane formed body and an elastomer formed body without intervention of an adhesive.
Provided is a method for producing a polyrotaxane composite formed body, the method including subjecting a surface of a crosslinked polyrotaxane formed body and a surface of an elastomer formed body to plasma treatment, and pressure joining the treated surfaces together, to thereby bond the formed bodies. Also provided is a polyrotaxane composite formed body including a crosslinked polyrotaxane formed body and an elastomer formed body, wherein these formed bodies are directly bonded together without being intermingled with each other in the absence of an adhesive layer between the formed bodies, an oxygen-rich layer is present between the bonding surfaces of the formed bodies, and the formed bodies exhibit a peel strength of 1 N/m or more.

公开(公告)号：US20220315741A1

公开(公告)日：2022-10-06

申请号：US17689468

申请日：2022-03-08

Applicant: TOYODA GOSEI CO., LTD. ,  ASM INC.

Inventor： Takanori NAKAI ,  Hideki TAMAI ,  Hiromitsu TAKEUCHI ,  Makoto ISHIDA ,  Hideyuki IMAI ,  Katsunari INOUE

IPC: C08L9/00

Abstract: A rubber composition in which a diene rubber containing hydroxyl groups and a polyrotaxane containing a hydrocarbon-modified cyclodextrin as cyclic molecules are urethane-crosslinked by an isocyanate that is a crosslinking agent.

公开(公告)号：US20170096559A1

公开(公告)日：2017-04-06

申请号：US15270374

申请日：2016-09-20

Applicant: TOYODA GOSEI CO., LTD. ,  ADVANCED SOFTMATERIALS INC.

Inventor： Takanori NAKAI ,  Hiromitsu TAKEUCHI ,  Katsunari INOUE

IPC: C08L101/06 ,  H01L41/193 ,  H01L41/083 ,  C08L83/10 ,  C08L71/02

CPC classification number: C08L101/06 ,  C08G77/445 ,  C08G83/007 ,  C08L71/02 ,  C08L83/10 ,  H01L41/083 ,  H01L41/0836 ,  H01L41/193

Abstract: A composition includes a polyrotaxane (A) which includes cyclodextrin as a ring molecule and polyethylene glycol as a linear molecule, and in which a blocking group is arranged at both ends of the linear molecule; a block copolymer (B) including polysiloxane; and a polymer (C) including no polysiloxane.

公开(公告)号：US20230123626A1

公开(公告)日：2023-04-20

申请号：US17796216

申请日：2020-12-02

Applicant: TOYODA GOSEI CO., LTD. ,  THE UNIVERSITY OF TOKYO

Inventor： Takanori NAKAI ,  Naoki IWASE ,  Naoyuki AKAHORI ,  Hideyuki IMAI ,  Hidekazu KURIMOTO ,  Makoto ISHIDA ,  Kohzo ITO ,  Rina MAEDA ,  Shota ANDO ,  Katsunari INOUE

IPC: C08L5/16

Abstract: The present invention provides a crosslinked polymer composition exhibiting significantly improved elongation at break over conventional ones, and a polymer composition and a polyrotaxane, each of which can be used as a raw material of the crosslinked polymer composition.
The polyrotaxane contains a linear molecule, a cyclic molecule, and a blocking group, wherein the cyclic molecule has a hydrosilyl group. The polymer composition contains the polyrotaxane and a polymer, wherein the polymer has a double bond on at least either a main chain or a side chain. The crosslinked polymer composition is produced by crosslinking of the polymer composition through chemical reaction between the hydrosilyl group of the cyclic molecule and the double bond of the polymer.

公开(公告)号：US20220348768A1

公开(公告)日：2022-11-03

申请号：US17620890

申请日：2020-06-11

Applicant: TOYODA GOSEI CO., LTD. ,  ASM INC.

Inventor： Takanori NAKAI ,  Katsunari INOUE

IPC: C08L101/00 ,  C08J5/18

Abstract: Provided is an elastomer which is suitable for application in actuators or sensors, and which exhibits an appropriately low initial elastic modulus in a low deformation region.
An elastomer composition containing the following components (A) to (D):
component (A): a polyrotaxane;
component (B): a crosslinking agent containing a second linear molecule having a molecular weight of 1,200 to 7,000, and a functional group disposed at both ends of the second linear molecule;
component (C): a double-reactive component having a reactive group at both ends; and
component (D): a single-reactive component having a reactive group at only one end, wherein at least a portion of the functional group in the component (B) is directly or indirectly bonded to the cyclic molecule in the component (A), and the elastomer composition exhibits an initial elastic modulus of 0.6 to 2 MPa.

公开(公告)号：US20220033590A1

公开(公告)日：2022-02-03

申请号：US17278818

申请日：2019-07-04

Applicant: TOYODA GOSEI CO., LTD. ,  ASM INC.

Inventor： Yoshinao TAJIMA ,  Tomoyuki TAINAKA ,  Takanori NAKAI ,  Naoto MATSUNAGA ,  Katsunari INOUE

IPC: C08G83/00 ,  C08J5/18 ,  G01L1/14

Abstract: The present invention provides a sensor that exhibits a small effect on a detection target during detection, a high detection sensitivity, a wide dynamic range for detection, and a small change after repeated detection, as well as a composition suitable for use in the sensor.
The composition is a polyrotaxane composition containing two polyrotaxane cyclic molecules crosslinked with a crosslinking agent present between the molecules, wherein the polyrotaxane composition exhibits a hysteresis loss of 10% or less, an elongation at break of 200% or more, an initial Young's modulus of 5 MPa or less, and a relative dielectric constant of 8.0 or more. The sensor includes a film formed of the aforementioned polyrotaxane composition, and elastomer-made electrode layers disposed on both surfaces of the film.