US 12,325,787 B2
Elastomer composition and actuator and sensor
Takanori Nakai, Kiyosu (JP); and Katsunari Inoue, Chiba (JP)
Assigned to TOYODA GOSEI CO., LTD., Aichi-pref. (JP); and ASM INC., Kashiwashi (JP)
Appl. No. 17/620,890
Filed by TOYODA GOSEI CO., LTD., Kiyosu (JP); and ASM INC., Chiba (JP)
PCT Filed Jun. 11, 2020, PCT No. PCT/JP2020/023007
§ 371(c)(1), (2) Date Dec. 20, 2021,
PCT Pub. No. WO2020/262017, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 2019-116461 (JP), filed on Jun. 24, 2019.
Prior Publication US 2022/0348768 A1, Nov. 3, 2022
Int. Cl. C08L 101/00 (2006.01); C08J 5/18 (2006.01)
CPC C08L 101/00 (2013.01) [C08J 5/18 (2013.01); C08J 2399/00 (2013.01); C08J 2467/04 (2013.01); C08J 2471/02 (2013.01); C08L 2203/20 (2013.01); C08L 2312/00 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An elastomer composition comprising the following components (A) to (D):
component (A): a polyrotaxane containing a first linear molecule, a cyclic molecule through which the first linear molecule penetrates, and a blocking group disposed at both ends of the first linear molecule;
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 containing a third linear molecule having a molecular weight of 300 to 3,000, and a reactive group disposed at both ends of the third linear molecule and capable of reacting with the functional group; and
component (D): a single-reactive component containing a fourth linear molecule having a molecular weight of 300 to 3,000, and a reactive group disposed at only one end of the fourth linear molecule and capable of reacting with the functional group,
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.