US 12,473,380 B2
Polymerizable unsaturated group-containing cyclodextrin derivative
Yuya Takahashi, Nara (JP); Bunsho Kure, Nara (JP); Tsuyoshi Yamaguchi, Nara (JP); Naomi Takenaka, Nara (JP); Yoshinori Takashima, Osaka (JP); Akira Harada, Osaka (JP); and Motofumi Osaki, Osaka (JP)
Assigned to KYOEISHA CHEMICAL CO., LTD., Osaka (JP)
Appl. No. 18/006,926
Filed by KYOEISHA CHEMICAL CO., LTD., Osaka (JP)
PCT Filed Jul. 21, 2021, PCT No. PCT/JP2021/027276
§ 371(c)(1), (2) Date Jan. 26, 2023,
PCT Pub. No. WO2022/024908, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 2020-128269 (JP), filed on Jul. 29, 2020.
Prior Publication US 2024/0043573 A1, Feb. 8, 2024
Int. Cl. C08B 37/16 (2006.01)
CPC C08B 37/0012 (2013.01) 3 Claims
 
1. A polymerizable unsaturated group-containing cyclodextrin derivative represented by the following formula (1):

OG Complex Work Unit Chemistry
where R1 represents any one of:
(A) the following formula (2)
—R3—NH—R4  (2)
where R3 is an alkylene group having 3 to 20 carbon atoms, may be linear or branched, and may have a substituent; and
R4 represents a (meth)acryloyl group or a vinyl group-containing alkyl group having 3 to 50 carbon atoms,
(B) the following general formula (3)
—R5—NHCONH—R6  (3)
where R5 is an alkylene group having 3 to 20 carbon atoms, may be linear or branched, and may have a substituent; and
R6 represents a (meth)acryloyloxyalkyl group having 4 to 50 carbon atoms or a vinyl group-containing alkyl group having 3 to 50 carbon atoms, or
(C) the following general formula (4)
—R5—OCONH—R6  (4)
where R5 and R6 are the same as those defined above,
R2 represents a hydrogen atom, an acyl group having 2 to 50 carbon atoms, or an alkyl group having 1 to 30 carbon atoms, and
Rc represents a group represented by the following formula (5):

OG Complex Work Unit Chemistry
where R7 may be the same as, or different from, each other, and each represents a hydrogen atom, an acyl group having 2 to 50 carbon atoms, an alkyl group having 1 to 30 carbon atoms, or —CONHR8, where R8 is an alkyl group having 1 to 20 carbon atoms; wherein 20% or more of R7 is any one of an acyl group having 2 to 50 carbon atoms, an alkyl group having 1 to 30 carbon atoms, or —CONHR8; and x is an integer of 5 to 7.