US 12,281,203 B2
Thermally responsive brush polymers having a copolymer backbone and copolymer arms
Nga Nguyen, Linden, NJ (US); Ronald M. Lewis, Linden, NJ (US); Remzi Becer, Coventry (GB); and Matilde Concilio, Coventry (GB)
Assigned to Infineum International Limited, Oxfordshire (GB)
Appl. No. 18/269,637
Filed by Infineum International Limited, Oxfordshire (GB)
PCT Filed Dec. 21, 2021, PCT No. PCT/EP2021/087011
§ 371(c)(1), (2) Date Jun. 26, 2023,
PCT Pub. No. WO2022/136384, PCT Pub. Date Jun. 30, 2022.
Claims priority of provisional application 63/130,474, filed on Dec. 24, 2020.
Prior Publication US 2024/0309155 A1, Sep. 19, 2024
Int. Cl. C08G 81/02 (2006.01); C10M 149/12 (2006.01); C10M 169/04 (2006.01); C10N 20/00 (2006.01); C10N 20/02 (2006.01); C10N 20/04 (2006.01)
CPC C08G 81/024 (2013.01) [C10M 149/12 (2013.01); C10M 169/041 (2013.01); C10M 2203/003 (2013.01); C10M 2217/046 (2013.01); C10N 2020/02 (2013.01); C10N 2020/04 (2013.01); C10N 2020/071 (2020.05)] 9 Claims
 
1. A brush copolymer composition comprising a copolymeric backbone and copolymeric brush arms, wherein: the copolymeric brush arms comprise monomeric repeat units of at least two different acylated poly (alkylene amine) s of formulae (1) and (2):

OG Complex Work Unit Chemistry
wherein each R5 is individually hydrogen or a linear or branched C1-C24 alkyl moiety; each R6, being different from each R5 although having the same or a greater number of carbons than each R5, is individually a linear or branched C8-C24 alkyl moiety; y and z are each 1 or 2; and a sum of m+n is from 90 mol % to 100 mol % of an average degree of polymerization of the copolymeric brush arms; and the copolymeric backbone comprises monomeric repeat units of at least two different acrylate monomers of formulae (3) and (4):

OG Complex Work Unit Chemistry
wherein each R1 and R3 are individually hydrogen, a linear or branched C1-C4 alkyl moiety, or a mixture thereof; each R2 is individually a covalently-linked copolymeric brush arm, a residual hydrogen, a residual trisubstituted silyl group in which the substitutions are each individually a linear, branched, and/or cyclic C1-C8 alkyl, aryl, alkaryl, or aralkyl moiety, a residual linear, cyclic, or branched C1-C7 acyl moiety, a residual linear or branched C1-C4 hydroxyalkyl moiety, or a residual monovalent counterion; each R4 is individually a linear, branched, and/or cyclic C8-C30 alkyl, aryl, alkaryl, or aralkyl moiety; and a sum of a +b is from 90 mol % to 100 mol % of an average degree of polymerization of the copolymeric backbone.