US 12,441,884 B2
Rheology control agent and curable composition using the same
Kyohei Nakano, Saitama (JP); Hiroki Ouchi, Saitama (JP); and Kenji Fukui, Saitama (JP)
Assigned to KUSUMOTO CHEMICALS, LTD., Tokyo (JP)
Appl. No. 17/427,281
Filed by KUSUMOTO CHEMICALS, LTD., Tokyo (JP)
PCT Filed Dec. 23, 2019, PCT No. PCT/JP2019/050436
§ 371(c)(1), (2) Date Jul. 30, 2021,
PCT Pub. No. WO2020/158252, PCT Pub. Date Aug. 6, 2020.
Claims priority of application No. 2019-016546 (JP), filed on Jan. 31, 2019.
Prior Publication US 2022/0135798 A1, May 5, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C08L 83/04 (2006.01); C08J 3/22 (2006.01); C08K 5/20 (2006.01); C09J 11/06 (2006.01); C09J 11/08 (2006.01); C09J 183/04 (2006.01); C09K 3/10 (2006.01)
CPC C08L 83/04 (2013.01) [C08J 3/226 (2013.01); C08K 5/20 (2013.01); C09J 11/06 (2013.01); C09J 11/08 (2013.01); C09J 183/04 (2013.01); C09K 3/1018 (2013.01); C08J 2377/08 (2013.01); C08J 2491/00 (2013.01); C08L 2310/00 (2013.01); C09K 2200/047 (2013.01); C09K 2200/0667 (2013.01); C09K 2200/0685 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A rheology control agent for a curable composition, the rheology control agent comprising:
a diamide compound (A), the diamide compound (A) being obtained by condensation reaction between a diamine component (A1) and a monocarboxylic acid component (A2); and
a polyamide compound (B) obtained by polycondensation of an amine component (B1) and a carboxylic acid component (B2), wherein
the amine component (B1) contains at least one amine selected from the group consisting of a diamine with 2 to 54 carbon atoms and a triamine with 2 to 54 carbon atoms,
the carboxylic acid component (B2) contains at least one carboxylic acid selected from the group consisting of a dicarboxylic acid with 4 to 54 carbon atoms and a tricarboxylic acid with 4 to 54 carbon atoms,
the polyamide compound (B) is a polyamide obtained by polycondensation of at least one of the amine component (B1) containing polymerized fatty acid derivatives and the carboxylic acid component (B2) containing polymerized fatty acids,
a content of the polyamide compound (B) is 1 wt % to 30 wt % with respect to a total amount of the polyamide compound (B) and the diamide compound (A), and the rheology control agent is in a form of a powdered solid, and
the polyamide compound (B) has a weight-average molecular weight of 2,000 to 50,000.