	US 12,221,513 B2
	Copolymerized polyester and water dispersion
Koichi Sakamoto, Shiga (JP); Tadahiko Mikami, Shiga (JP); Yuji Iwashita, Shiga (JP); and Katsuya Shimeno, Shiga (JP)
Assigned to TOYOBO MC CORPORATION, Osaka (JP)
Appl. No. 17/290,393
Filed by TOYOBO CO., LTD., Osaka (JP)
PCT Filed Dec. 18, 2019, PCT No. PCT/JP2019/049628 § 371(c)(1), (2) Date Apr. 30, 2021, PCT Pub. No. WO2020/149082, PCT Pub. Date Jul. 23, 2020.
Claims priority of application No. 2019-005882 (JP), filed on Jan. 17, 2019.
Prior Publication US 2021/0371581 A1, Dec. 2, 2021
Int. Cl. C08G 63/199 (2006.01); C08J 3/07 (2006.01)

CPC C08G 63/199 (2013.01) [C08J 3/07 (2013.01); C08J 2367/02 (2013.01)]

6 Claims

1. A copolymerized polyester comprising a polyvalent carboxylic acid component and a polyhydric alcohol component as copolymerization components,

wherein the polyhydric alcohol component is at least one selected from the group consisting of ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 2-methyl-1,3-propanediol, neopentyl glycol, 1,5-pentanediol, 3-methyl-1,5-pentanediol, 1,6-hexanediol, 1-methyl-1,8-octanediol, 2-methyl-2-ethyl-1,3-propanediol, 2,2-diethyl-1,3-propanediol, 2-ethyl-2-n-propyl-1,3-propanediol, 2,2-di-n-propyl-1,3-propanediol, 2-n-butyl-2-ethyl-1,3-propanediol, 2,2-di-n-butyl-1,3-propanediol, 2,4-diethyl-1,5-pentanediol, 2-ethyl-1,3-hexanediol, 1,4-cyclohexanedimethanol, tricyclodecanedimethanol, polytetramethylene glycol, polypropylene glycol, glycerol, trimethylolpropane, trimethylolethane, pentaerythritol, α-methylglucose, mannitol and sorbitol,

wherein, when a content of the polyvalent carboxylic acid component is taken as 100% by mole, a content of an alicyclic polyvalent carboxylic acid component is 70% by mole or more,

wherein the alicyclic polyvalent carboxylic acid component comprises 1,4-cyclohexane-dicarboxylic acid,

wherein the copolymerized polyester has an acid value of 300 to 800 equivalents/10⁶g, and

wherein a copolymerization amount of the polyhydric alcohol component having three or higher valences is 10% by mole or more and 20% by mole or less, when the total content of the polyhydric alcohol component is taken as 100% by mole.