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：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：US20140371369A1

公开(公告)日：2014-12-18

申请号：US14301418

申请日：2014-06-11

Applicant: TOYODA GOSEI CO., LTD.

Inventor： Hidekazu KURIMOTO ,  Hideyuki IMAI ,  Masanori KUMAZAKI ,  Shinji MATSUNAGA

IPC: C08K13/02

CPC classification number: C08L23/16 ,  C08K3/04 ,  C08K3/26 ,  C08K3/346 ,  C08K5/005 ,  C08L91/00

Abstract: A rubber composition includes, as essential components, an EDPM polymer, a carbon black, an electrical insulating amorphous or spindle-shaped filler, a softener, and a sulfur-based vulcanizing agent as essential components, and also includes, as an optical component, an electrical insulating plate-shaped filler. An obtained vulcanized product is satisfied with the following Equations (1) and (2): volume resistivity≧1.0×106 Ω·cm  (1) (M30 /M30 −1)×100≧−15%  (2) where M30 is a tensile stress at elongation of 30% as measured by a tensile test at 23° C., and M30 is a tensile stress at elongation of 30% as measured by a tensile test at 100° C.

Abstract translation: 橡胶组合物作为必要成分包括EDPM聚合物，炭黑，电绝缘无定形或纺锤形填料，软化剂和硫系硫化剂作为必要成分，并且还包括作为光学部件的， 电绝缘板状填料。 所获得的硫化产品满足以下等式（1）和（2）：体积电阻率≧1.0×106＆OHgr;·cm（1）（M30 <100℃。/ M30 <23℃-1） ×100≥-15％（2）其中M30 <23℃>是在23℃下通过拉伸试验测量的伸长率为30％时的拉伸应力，M30 <100℃>为拉伸应力 在100℃下通过拉伸试验测量的伸长率为30％

公开(公告)号：US20230067211A1

公开(公告)日：2023-03-02

申请号：US17799540

申请日：2020-12-22

Applicant: TOYODA GOSEI CO., LTD. ,  KYOTO UNIVERSITY ,  NATIONAL UNIVERSITY CORPORATION KANAZAWA UNIVERSITY

Inventor： Hideki TAMAI ,  Takanori NAKAI ,  Hideyuki IMAI ,  Makoto ISHIDA ,  Tomoki OGOSHI ,  Koki MAEDA ,  Katsuto ONISHI ,  Tada-Aki YAMAGISHI ,  Takahiro KAKUTA ,  Masafumi YAGYU

IPC: C08G65/26

Abstract: A polyrotaxane of high heat resistance contains a linear molecule, a cyclic molecule enclosing the linear molecule such that the cyclic molecule is skewered with the linear molecule, and 5 blocking groups disposed at both ends of the linear molecule. The cyclic molecule contains an aromatic ring having, on a side chain, a phenolic hydroxyl group. The polyrotaxane can be produced by dissolving, in a methanol-containing solvent, a linear molecule and a cyclic 10 molecule containing an aromatic ring having, on a side chain, a phenolic hydroxyl group, to yield a pseudo polyrotaxane in which the cyclic molecule encloses the linear molecule such that the cyclic molecule is skewered with the linear molecule; and dissolving the pseudo polyrotaxane and a blocking group 15 material in a solvent, to dispose blocking groups at both ends of the linear molecule.