| 摘要 |
Biologically degradable amide-terminated polyether compounds of specified formula are used as gas hydrate inhibitors. Biologically degradable amide-terminated polyether compounds of formula (I) are used as gas hydrate inhibitors. R1 = 1-24C alkyl, 2-24C alkenyl or 6-18C aryl, optionally substituted by a 1-12C alkyl; R2, R3 = H, 1-18C alkyl, 5-7C cycloalkyl; or R2 and R3 can be joined together with the inclusion of an N atom to form a 4-8 membered heterocyclic ring optionally containing O and N atoms; A = 2-4 C alkylene; B = 1-7 C alkylene; and n = 1-40. An Independent claim is also included for an additive for inhibiting the formation of gas hydrates comprising the compound, and a water soluble polymer selected from polyisopropyl acrylamide, polyacryloyl pyrrolidine, polyvinyl caprolactam, polyvinyl pyrrolidone, copolymers of vinyl caprolactam with vinyl pyrrolidone, N-vinyl-N-methyl acetamide or alkoxyalkyl-substituted (meth)acrylic acid ester and copolymers containing structural units of maleic acid or their anhydrides or amide derivatives.
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