US 11,702,385 B2
Urea group containing anti-sagging rheology control agents
Christiane Knappke-Bongartz, Wesel (DE); René Nagelsdiek, Wesel (DE); Sylvia Bühne, Wesel (DE); Agnetha Klein, Wesel (DE); and Berthold Jacobs, Wesel (DE)
Assigned to BYK-Chemie GmbH, Wesel (DE)
Appl. No. 16/955,430
Filed by BYK-Chemie GmbH, Wesel (DE)
PCT Filed Dec. 20, 2018, PCT No. PCT/EP2018/086357
§ 371(c)(1), (2) Date Jun. 18, 2020,
PCT Pub. No. WO2019/122222, PCT Pub. Date Jun. 27, 2019.
Claims priority of application No. 17209527 (EP), filed on Dec. 21, 2017.
Prior Publication US 2021/0070697 A1, Mar. 11, 2021
Int. Cl. C09D 175/02 (2006.01); C08G 18/10 (2006.01); C08G 18/79 (2006.01); C07C 275/24 (2006.01); C09D 7/43 (2018.01); C07C 275/18 (2006.01); C08G 18/24 (2006.01); C08G 18/28 (2006.01); C08G 18/40 (2006.01); C08G 18/76 (2006.01); C09D 4/00 (2006.01); C09D 175/04 (2006.01); C08G 18/71 (2006.01); C08G 18/32 (2006.01)
CPC C07C 275/24 (2013.01) [C07C 275/18 (2013.01); C08G 18/10 (2013.01); C08G 18/24 (2013.01); C08G 18/2825 (2013.01); C08G 18/3228 (2013.01); C08G 18/4063 (2013.01); C08G 18/71 (2013.01); C08G 18/714 (2013.01); C08G 18/7614 (2013.01); C08G 18/792 (2013.01); C09D 4/00 (2013.01); C09D 7/43 (2018.01); C09D 175/02 (2013.01); C09D 175/04 (2013.01)] 15 Claims
 
1. A urea group containing product comprising one or more species of formula (I)
R1—X—(C═O)—[NH—R2—NH—(C═O)—NH—R3—NH—(C═O)]n—NH—R2—NH—(C═O)—X—R1  (I),
wherein R1 independently represent an aliphatic group having 8 to 70 carbon atoms or a group of the formula Ra—[O—(C═O)s—Rb]t, wherein
Ra are independently from each other an aromatic hydrocarbyl group having 6 to 40 carbon atoms or an aliphatic hydrocarbyl group having 1 to 40 carbon atoms,
Rb are independently from each other a linear or branched alkylene group having 2 to 6 carbon atoms,
t is 0 to 60,
independently of each other, s is 0 or 1, with the proviso that the number of carbon atoms in Ra plus the number of carbon atoms in the residues [O—(C═O)s—Rb] are from 4 to 200 if Ra is aliphatic and from 6 to 200 if Ra is aromatic,
X is O,
R2 independently represent hydrocarbyl groups having 6 to 15 carbon atoms,
R3 independently represent hydrocarbyl groups having 2 to 12 carbon atoms, and wherein on average 76 to 100 mol % of all R3 groups contained in the one or more species of formula (I) are hydrocarbyl groups having 2 or 3 carbon atoms, and
n is an integer of 2 to 40.