	US 12,297,301 B2
	High-molecular-weight compound and method for producing same, composition and method for producing same, resin composition, additive for lubricating oil, and lubricating oil
Shunsuke Chatani, Tokyo (JP); Yuki Miyahara, Tokyo (JP); Hiroshi Niino, Tokyo (JP); Masashi Ikawa, Tokyo (JP); Haruki Okada, Tokyo (JP); and Fumiko Fujie, Tokyo (JP)
Assigned to Mitsubishi Chemical Corporation, Tokyo (JP)
Filed by Mitsubishi Chemical Corporation, Tokyo (JP)
Filed on Aug. 27, 2021, as Appl. No. 17/460,140.
Application 17/460,140 is a continuation of application No. PCT/JP2020/014187, filed on Mar. 27, 2020.
Claims priority of application No. 2019-068999 (JP), filed on Mar. 29, 2019; application No. 2019-069000 (JP), filed on Mar. 29, 2019; and application No. 2019-069001 (JP), filed on Mar. 29, 2019.
Prior Publication US 2021/0403619 A1, Dec. 30, 2021
Int. Cl. C08F 120/14 (2006.01); C07C 321/14 (2006.01); C07C 333/04 (2006.01); C08L 33/12 (2006.01); C10M 151/02 (2006.01); C10M 151/04 (2006.01); C10M 169/04 (2006.01); C10N 30/00 (2006.01); C10N 30/02 (2006.01)

CPC C08F 120/14 (2013.01) [C07C 321/14 (2013.01); C07C 333/04 (2013.01); C08L 33/12 (2013.01); C10M 151/02 (2013.01); C10M 151/04 (2013.01); C10M 169/041 (2013.01); C08F 2810/20 (2013.01); C10M 2203/003 (2013.01); C10M 2221/02 (2013.01); C10N 2030/02 (2013.01); C10N 2030/68 (2020.05)]

19 Claims

1. A high-molecular-weight compound comprising a plurality of polymer chains linked through a divalent or higher-valent linking group and having a moiety derived from a polyfunctional thiol compound (A) and a moiety derived from a compound (B) having a reactive group that reacts with a thiol group,

wherein the divalent or higher-valent linking group has a thiol group and at least one of a thioether structure and a thiourethane structure,

a ratio of an absolute weight-average molecular weight to a relative weight-average molecular weight (absolute Mw/relative Mw) of the high-molecular-weight compound is 1.25 or more, and

a relative Mw of the high-molecular-weight compound is 15,000 or more and 350,000 or less,

the high-molecular-weight compound satisfies Formulae (11) and (12),

r×(f_A−1)×(f_B−1)<1.2 (11)

r=(f_B×y)/(f_A×x) (12)

wherein, in Formula (11), f_Ais an average number of thiol groups per molecule of the polyfunctional thiol compound (A), f_Bis an average number of reactive groups per molecule of the compound (B), f_Ais 2.0 or more and f_Bis 1.2 or more, provided that a case where only the compound (A) having two thiol groups and only the compound (B) having two reactive groups are used is excluded, and r is a value calculated by Formula (12) when a molar ratio of the moiety derived from the polyfunctional thiol compound (A) to the moiety derived from the compound (B) is defined as x:y.