C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 220/52 (2006.01) C07C 7/20 (2006.01) C08L 33/24 (2006.01)
Patent
CA 2178364
Novel maleimide copolymers have at least two monomeric units, a maleimide unit and a vinyl unit having a pendant group, the pendant group having two to twenty-one carbon atoms, at least one nitrogen atom and at least one oxygen atom. The copolymer has an average molecular weight between about 1,000 and about 6,000,000. Preferred maleimide copolymers include acrylamide/maleimide copolymers, N-vinyl amide/maleimide copolymers, vinyl lactam/maleimide copolymers, alkenyl cyclic imino ether/maleimide copolymers, and acryloylamide/maleimide copolymers. The substantially water soluble maleimide copolymers are useful for inhibiting the formation of clathrate hydrates in a fluid having hydrate-forming constituents by reducing the rate of nucleation, growth, and/or agglomeration of gas hydrate crystals in a petroleum fluid stream, thereby inhibiting the formation of a hydrate blockage in the pipe conveying the petroleum fluid stream. The inhibitor can be used conveniently at low concentrations, for example in the range of from about 0.01% to about 5% by weight of the water present in the oil or gas stream, to effectively treat a petroleum fluid having a water phase.
Berluche Enock
Costello Christine A.
Oelfke Russell H.
Talley Larry D.
Berluche Enock
Borden Ladner Gervais Llp
Costello Christine A.
Exxon Production Research Company
Oelfke Russell H.
LandOfFree
Maleimide copolymers and method for inhibiting hydrate... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Maleimide copolymers and method for inhibiting hydrate..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Maleimide copolymers and method for inhibiting hydrate... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1997203