US 12,275,810 B2
Telechelic polyolefins and processes for preparing the same
Lixin Sun, Sugar Land, TX (US); Endre Szuromi, Richwood, TX (US); and Edmund M. Carnahan, Pearland, TX (US)
Assigned to Dow Global Technologies LLC, Midland, MI (US)
Appl. No. 17/419,266
Filed by Dow Global Technologies LLC, Midland, MI (US)
PCT Filed Dec. 27, 2019, PCT No. PCT/US2019/068782
§ 371(c)(1), (2) Date Jun. 28, 2021,
PCT Pub. No. WO2020/140058, PCT Pub. Date Jul. 2, 2020.
Claims priority of provisional application 62/786,084, filed on Dec. 28, 2018.
Prior Publication US 2022/0073658 A1, Mar. 10, 2022
Int. Cl. C08F 210/14 (2006.01); C08F 2/38 (2006.01); C08F 210/02 (2006.01); C08F 210/06 (2006.01); C08F 210/08 (2006.01)
CPC C08F 210/14 (2013.01) [C08F 2/38 (2013.01); C08F 210/02 (2013.01); C08F 210/06 (2013.01); C08F 210/08 (2013.01); C08F 2810/30 (2013.01); C08F 2810/40 (2013.01)] 10 Claims
 
1. A telechelic polyolefin of the formula (I):
AL1L2A2  (I), wherein:
L1 is a polyolefin;
A1 is selected from the group consisting of a vinyl group, a vinylidene group of the formula CH2═C(Y1)—, a vinylene group of the formula Y1CH═CH—, a mixture of a vinyl group and a vinylene group of the formula Y1CH═CH—, a mixture of a vinyl group and a vinylidene group of the formula CH2═C(Y1)—, a mixture of a vinylidene group of the formula CH2═C(Y1)— and a vinylene group of the formula Y1CH═CH—, and a mixture of a vinyl group, a vinylidene group of the formula CH2═C(Y1)—, and a vinylene group of the formula Y1CH═CH—;
Y1 at each occurrence independently is a C1 to C30 hydrocarbyl group;
L2 is a C1 to C32 hydrocarbylene group; and
A2 is selected from the group consisting of:

OG Complex Work Unit Chemistry
wherein the endocyclic double bond in (AC) and (AF) may be between any two adjacent carbon atoms that are ring members, and wherein the pendant methyl group of (AF) may be connected to any carbon atom that is a ring member.