	US 12,215,191 B2
	Polyalkylene ether glycol composition and method for producing the same
Ryo Yamashita, Tokyo (JP); Yusuke Izawa, Tokyo (JP); and Masaru Utsunomiya, Tokyo (JP)
Assigned to Mitsubishi Chemical Corporation, Tokyo (JP)
Filed by Mitsubishi Chemical Corporation, Tokyo (JP)
Filed on Nov. 2, 2021, as Appl. No. 17/453,190.
Application 17/453,190 is a continuation of application No. PCT/JP2019/026276, filed on Jul. 2, 2019.
Prior Publication US 2022/0056208 A1, Feb. 24, 2022
Int. Cl. C08G 65/26 (2006.01); C08G 18/48 (2006.01); C08G 65/20 (2006.01); C08G 65/30 (2006.01); C08K 5/17 (2006.01); C08K 5/20 (2006.01); C09D 175/04 (2006.01); D01F 6/70 (2006.01); D01F 6/86 (2006.01); D06N 3/14 (2006.01)

CPC C08G 65/2627 (2013.01) [C08G 18/48 (2013.01); C08G 18/4854 (2013.01); C08G 65/20 (2013.01); C08G 65/30 (2013.01); C09D 175/04 (2013.01); D01F 6/70 (2013.01); D01F 6/86 (2013.01); D06N 3/14 (2013.01); C08G 2650/50 (2013.01); C08K 5/17 (2013.01); C08K 5/20 (2013.01)]

16 Claims

1. A polyalkylene ether glycol composition, comprising:

a nitrogen-containing compound,

wherein the nitrogen-containing compound constitutes 0.2 to 40 mass ppm of the polyalkylene ether glycol in terms of nitrogen atoms, and

wherein the nitrogen-containing compound has a boiling point in a range of −40° C. to 120° C. at atmospheric pressure.