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1. (WO1998053007) COMPOSITION FOR CONTROLLING CLATHRATE HYDRATES AND A METHOD FOR CONTROLLING CLATHRATE HYDRATE FORMATION

Pub. No.:    WO/1998/053007    International Application No.:    PCT/NO1998/000152
Publication Date: Fri Nov 27 00:59:59 CET 1998 International Filing Date: Thu May 21 01:59:59 CEST 1998
IPC: C09K 8/52
C10L 1/14
C10L 1/18
C10L 1/22
C10L 1/236
C10L 1/24
C10L 1/32
Applicants: RF-PROCOM A/S
NIPPON SHOKUBAI CO., LTD.
KELLAND, Malcolm, Andrew
RODGER, P., Mark
NAMBA, Takashi
Inventors: KELLAND, Malcolm, Andrew
RODGER, P., Mark
NAMBA, Takashi
Title: COMPOSITION FOR CONTROLLING CLATHRATE HYDRATES AND A METHOD FOR CONTROLLING CLATHRATE HYDRATE FORMATION
Abstract:
Composition for controlling the formation, growth and/or agglomeration of clathrate hydrates, which comprises a Polymer A containing the repeating structural unit (1), wherein P1 is an atom on a macromolecular main chain; A1 is a direct bond or a spacer group, and R1 and R2 are selected from hydrogen; C1-6 alkyl; C3-7 cycloalkyl; C1-5 alkanoyl; or R1 and R2 together with the nitrogen atom to which they are attached form a C3-7 cyclic group, and having the number average molecular weight in the range from 400 to 7000 and having a cloud point greater than 50 °C for 1 wt.% solution in distilled water.