US 12,084,543 B2
Polyether derivatives, uses, and methods of making the same
Patrick Foley, New Haven, CT (US); Tania Salam, New Haven, CT (US); and Anam Ikram, Woodbridge, CT (US)
Assigned to P2 SCIENCE, INC., Woodbridge, CT (US)
Appl. No. 16/978,076
Filed by P2 Science, Inc., Woodbridge, CT (US)
PCT Filed Mar. 7, 2019, PCT No. PCT/US2019/021187
§ 371(c)(1), (2) Date Sep. 3, 2020,
PCT Pub. No. WO2019/173614, PCT Pub. Date Sep. 12, 2019.
Claims priority of provisional application 62/639,784, filed on Mar. 7, 2018.
Prior Publication US 2020/0392287 A1, Dec. 17, 2020
Int. Cl. C08G 65/34 (2006.01)
CPC C08G 65/34 (2013.01) 21 Claims
OG exemplary drawing
 
1. A copolymer formed from a combination of monomeric units, wherein the monomeric units consist of units X and units Y, wherein the unit X has the formula:

OG Complex Work Unit Chemistry
and wherein the unit Y has a formula selected from Y1, Y2, Y3 and Y4:

OG Complex Work Unit Chemistry
wherein R1 is 3-methylpentyl, linear hexyl, 3-methyl-2-pentylene, or 3-methyl-3-vinylpropyl, R2 is ethyl, linear propyl, isopropyl, linear hexyl, linear nonanyl, a polyethoxy of the formula (OCH2CH2)n wherein n is 3, or 2-hydroxypropyl, R3 is ethyl, linear propyl, linear hexyl, or linear heptyl, and R4 is ethyl; and
provided that when the copolymer comprises only groups X and groups Y1 then substituent R1 of group Y1 is not 3-methylpentyl;
and wherein the copolymer is terminated with at least one terminal unit Z selected from Z, Z1, Z2, Z3, Z4 and Z5:

OG Complex Work Unit Chemistry
wherein the substituent group R of terminal unit Z is 3-methylpentyl, and the substituent groups R1, R2, R3 and/or R4 of the terminal units Z1, Z2, Z3, and/or Z4, as applicable, is/are the same as said groups of the corresponding units Y1, Y2, Y3 and/or Y4 of the copolymer, and wherein R5 is selected from H, OH, C1-20alkyl, aryl, arylC1-2 alkyl, OC1-20alkyl, or OC1-12 alkyl), O-aryl, O-arylC1-2 alkyl, C(O)—C1-20 alkyl, OC(O)—C1-20 alkyl, C(O)-aryl, and O—C(O)-aryl;
wherein custom character represents an optional methyl group; and
wherein, custom character represents a single bond or double bond.