The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2024
Filed:
Feb. 10, 2020
Isp Investments Llc, Wilmington, DE (US);
Oliver Johnathan Deane, Sheffield, GB;
Osama M. Musa, Bedminster, NJ (US);
Steven Peter Armes, Sheffield, GB;
Alan Fernyhough, Bradford, GB;
Rebecca Roisin Gibson, Sheffield, GB;
ISP INVESTMENTS LLC, Wilmington, DE (US);
Abstract
The invention provides a method for preparation of homopolymers and non-homopolymers comprising polymerizing in an aqueous medium a monomer comprising at least one acryloyl moiety and at least one functionalized or unfunctionalized lactam moiety, and optionally at least one hydrophilic or hydrophobic comonomer, in the presence of at least one chain transfer agent and at least one non-radiation initiator. Exemplary diblock polymers prepared by the method have the structure: where subscripts x, y, and z and variables R, R, Rand Rare described herein.