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US 8,796,376 B2Granted
Functionalized polymers and oligomers
AssigneeExxonMobil Chemical Patents Inc.
InventorsRahul R. Kulkarni, Pradeep P. Shirodkar, Alistair D. Westwood, Donna J. Crowther, Wei Tang
Life of this patent
Estimating the term…
Abstract
A functionalized polyolefin having one or more pyridazine moieties is disclosed herein. A method to produce the functionalized polyolefin is also disclosed. A composition including the functionalized polyolefin is also disclosed.
Claims22
A polyolefin comprising one or more pyridazine moieties according to the following formulae:
- wherein R1 comprises a polyolefin chain attached to the pyridazine moiety through an aliphatic linkage;
- and
- wherein R2 and R3 each comprise H or one or more functional groups comprising atoms from Groups 13, 14, 15, 16, and 17 of the Periodic Table of Elements, or a combination thereof, and wherein at least one of R2 and R3 comprises from 1 to 20 carbon atoms, nitrogen, oxygen, sulfur, phosphorous, or a combination thereof.
A polyolefin comprising one or more pyridazine moieties according to the following formulae:
- wherein R1 comprises a polyolefin chain attached to the pyridazine moiety through an aliphatic linkage, and wherein R2 and R3 each comprise H or one or more functional groups comprising atoms from Groups 13, 14, 15, 16, and 17 of the Periodic Table of Elements, or combinations thereof, wherein the pyridazine moiety is the cyclo-addition reaction product of a non-aromatic carbon-carbon double bond attached to a backbone of the polyolefin chain through an aliphatic linkage, and a substituted or unsubstituted tetrazine, wherein at least one of R2 and R3 comprises from 1 to 20 carbon atoms, nitrogen, oxygen, sulfur, phosphorous, or a combination thereof, and wherein R1 is derived from polyethylene, polypropylene, polybutadiene, butyl rubber, or a combination thereofhaving a weight average molecular weight of greater than or equal to about 2500 g/mol.
A composition comprising:
- (a) at least one functionalized polymer comprising one or more pyridazine moieties according to the following formulae:
- wherein R1 comprises a polyolefin chain attached to the pyridazine moiety through an aliphatic linkage;
- and
- wherein R2 and R3 each comprise H or one or more functional groups comprising atoms from Groups 13, 14, 15, 16, and 17 of the Periodic Table of Elements, or a combination thereof, wherein at least one of R2 and R3 comprises from 1 to 20 carbon atoms, nitrogen, oxygen, sulfur, phosphorous, or a combination thereof.
1 more element
Dependencies are inferred from the claim text.