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1. (WO2010117660) POLYMERS HAVING N-VINYL AMIDE AND HYDROXYL MOIETIES

Pub. No.:    WO/2010/117660    International Application No.:    PCT/US2010/028681
Publication Date: Fri Oct 15 01:59:59 CEST 2010 International Filing Date: Fri Mar 26 00:59:59 CET 2010
IPC: C08F 26/08
Applicants: ISP INVESTMENTS INC.
MUSA, Osama, M.
CUIYUE, Lei
Inventors: MUSA, Osama, M.
CUIYUE, Lei
Title: POLYMERS HAVING N-VINYL AMIDE AND HYDROXYL MOIETIES
Abstract:
The invention relates to polymers derived at least from one: (A) one N-vinyl amide unit, and (B) one hydroxyl-containing acrylate unit, and to polymers derived at least from: (A) N-vinyl-2- caprolactam, and (B) one non-acrylate unit having: (i) at least one hydroxyl group, and/or (ii) at least one functional group convertible to a hydroxyl group wherein at least one group is converted to hydroxyl functionality in the final polymer product. Such polymers may exhibit degradability, e.g., in seawater or soil environments. In preferred embodiments, these polymers and compositions thereof are used in oilfield applications, such as an inhibitor of gas hydrates and/or a kinetic inhibitor of gas hydrates. The polymer can assume alternating, block, and/or random configurations of the repeating units, with at least one ester group. The chemical structure subscripts m, and n may be any integer equal to or greater than 1.