US 12,065,542 B2
Polycarbonate polyol and method for producing same, composition and method for producing same, urethane resin and aqueous urethane resin dispersion
Kohei Honda, Yokkaichi (JP); Shinji Shigeyasu, Yokkaichi (JP); and Takahiro Tanaka, Yokkaichi (JP)
Assigned to TOSOH CORPORATION, Shunan (JP)
Appl. No. 18/031,232
Filed by TOSOH CORPORATION, Shunan (JP)
PCT Filed Oct. 15, 2021, PCT No. PCT/JP2021/038305
§ 371(c)(1), (2) Date Apr. 11, 2023,
PCT Pub. No. WO2022/080491, PCT Pub. Date Apr. 21, 2022.
Claims priority of application No. 2020-174917 (JP), filed on Oct. 16, 2020; application No. 2021-056298 (JP), filed on Mar. 29, 2021; application No. 2021-056301 (JP), filed on Mar. 29, 2021; and application No. 2021-056304 (JP), filed on Mar. 29, 2021.
Prior Publication US 2023/0348670 A1, Nov. 2, 2023
Int. Cl. C08G 18/44 (2006.01); C08G 18/73 (2006.01); C08G 64/02 (2006.01); C08G 64/30 (2006.01)
CPC C08G 64/305 (2013.01) [C08G 18/44 (2013.01); C08G 18/73 (2013.01); C08G 64/0208 (2013.01)] 15 Claims
 
1. A polycarbonate polyol represented by the following Formula (A-1):

OG Complex Work Unit Chemistry
in Formula (A-1), R1 represents a hydrogen atom or an alkyl group, R2 represents an alkanediyl group, n and m each represent an integer of 1 or more; and a plurality of R2's may be the same as or different from each other.