US 10,208,141 B2Granted

Thermoresponsive polymers

AssigneePhillips 66 Company

InventorsPaula Delgado, Amit Palkar

Life of this patent

Estimating the term…

A polymer comprising

Dependent claims

A polymer comprising:

wherein the polymer has a weight average molecular weight greater than 50,000 and the mol % of methacrylamide is greater than 95.

Dependencies are inferred from the claim text.

C08F 220/36
Esters containing nitrogen , e.g. N,N-dimethylaminoethyl acrylate: containing oxygen in addition to the carboxy oxygen , e.g. 2-N-morpholinoethyl…
C08F 2/06
Polymerisation in solution: organic solvent
C08F 8/30
Chemical modification by after-treatment: introducing nitrogen atoms or nitrogen-containing groups
C08F 20/56
Amides , e.g. N,N-dimethylacrylamide or N-isopropylacrylamide: acrylamide; Methacrylamide

From the US filing history. Foreign family members aren’t listed.

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