	US 11,926,696 B2
	Functionalized low molecular weight sterically encumbered oligomers
Eric D. Metzger, Houston, TX (US); Mika L. Shiramizu, Houston, TX (US); Brian J. Rohde, Houston, TX (US); and Alan A. Galuska, Ellijay, GA (US)
Assigned to ExxonMobil Chemical Patents Inc., Baytown, TX (US)
Filed by ExxonMobil Chemical Patents Inc., Baytown, TX (US)
Filed on Feb. 2, 2021, as Appl. No. 17/165,356.
Claims priority of provisional application 62/975,391, filed on Feb. 12, 2020.
Prior Publication US 2021/0253784 A1, Aug. 19, 2021
Int. Cl. C08G 61/08 (2006.01); B01J 31/22 (2006.01); C08F 2/38 (2006.01); C08F 232/04 (2006.01); C08F 232/08 (2006.01); C08G 61/06 (2006.01)

CPC C08G 61/08 (2013.01) [B01J 31/2278 (2013.01); C08F 2/38 (2013.01); C08F 232/04 (2013.01); C08F 232/08 (2013.01); B01J 2531/821 (2013.01); C08G 61/06 (2013.01); C08G 2170/00 (2013.01); C08G 2261/226 (2013.01); C08G 2261/228 (2013.01); C08G 2261/3324 (2013.01); C08G 2261/3325 (2013.01); C08G 2261/418 (2013.01); C08G 2380/00 (2013.01)]

18 Claims

1. A composition of matter comprising a functionalized oligomer obtained by ring opening metathesis polymerization (ROMP) of tetracyclododecene monomer and a sterically encumbered cyclic monomer with an olefinic chain transfer agent at a molar ratio of the tetracyclododecene monomer and the sterically encumbered cyclic monomer to olefinic chain transfer agent from 3:1 to about 40:1, wherein the olefinic chain transfer agent comprises allyl glycidyl ether, allyl Si(OEt)₃, allyl-CH₂—CH(O)CH₂, allyl-CH₂—N—(SiMe₃)₂, or a combination thereof, and wherein the sterically encumbered cyclic monomer comprises 5-trifluoromethyl-5,6,6-trifluoro-2-norbornene.