US 11,884,775 B2
Renewably sourced soil release polyesters
Kevin Mutch, Frankfurt (DE); and Martijn Gillissen, Frankfurt (DE)
Assigned to Clariant International Ltd., Muttenz (CH)
Appl. No. 16/767,311
Filed by Clariant International Ltd., Muttenz (CH)
PCT Filed Nov. 27, 2018, PCT No. PCT/EP2018/082718
§ 371(c)(1), (2) Date May 27, 2020,
PCT Pub. No. WO2019/105938, PCT Pub. Date Jun. 6, 2019.
Claims priority of application No. 17204063 (EP), filed on Nov. 28, 2017.
Prior Publication US 2020/0407494 A1, Dec. 31, 2020
Int. Cl. C11D 3/37 (2006.01); C08G 63/672 (2006.01); C11D 3/00 (2006.01)
CPC C08G 63/672 (2013.01) [C11D 3/0036 (2013.01); C11D 3/3715 (2013.01)] 16 Claims
 
1. A polyester comprising two or more structural units (a1), one or more structural units (a2) and either one or two terminal structural groups (a3)

OG Complex Work Unit Chemistry
wherein
each G1 is independently (OCnH2n) with n being a number of from 2 to 10,
R1 is a C1-30 alkyl,
p is, based on a molar average, a number of from 1 to 200,
q is, based on a molar average, a number of from 0 to 40,
where
the (OC3H6)— and (OC2H4)-groups of the terminal group (a3) may be arranged blockwise, alternating, periodically and/or statistically,
either of the groups (OC3H6)— and (OC2H4)— can be linked to R1— and —O,
adjacent structural units (a1) are connected by the structural unit (a2), in the case that only one terminal group (a3) is present in the polymer, the other terminal group is selected from the group consisting of OH, OCH3, and G1OH and
both terminal groups may be only linked to a structural unit (a1).