Paraffin inhibitors

Details Paraffin inhibitors Paraffin inhibitors

2004-03-26

2008-08-26

Moore, Margaret G (Department: 1796)

Earth boring, well treating, and oil field chemistry

Preventing contaminant deposits in petroleum oil conduits

C526S329500

Reexamination Certificate

active

07417009

ABSTRACT:
A paraffin inhibitor comprising a polymer composed of about (a) 1 to about 98 weight percent of one or more C1-C30alkyl esters of acrylic acid; (b) about 1 to about 98 weight percent of one or more C1-C30alkyl esters of methacrylic acid; (c) and about 1 to about 30 weight percent of one or more unsaturated monomers selected from the group consisting of (meth)acrylamide monomers, vinyl aromatic monomers, vinyl cycloalkyl monomers, vinyl heterocyclyl monomers, vinyl esters of aliphatic acids, vinyl esters of aromatic acids, vinyl esters of heterocyclic acids, maleimide and maleic anhydride wherein the alkyl ester portion of one of (a) or (b) is C10-C30alkyl, compositions comprising the polymer and methods of using the polymer to inhibit the deposition of paraffin from oil.

REFERENCES:
patent: 3303050 (1967-02-01), Roberts
patent: 3729296 (1973-04-01), Miller
patent: 3740367 (1973-06-01), Winkelblech
patent: 3860552 (1975-01-01), Montillier
patent: 3970725 (1976-07-01), Tugukuni et al.
patent: 4153422 (1979-05-01), Wisotsky
patent: 4163646 (1979-08-01), Oude Alink et al.
patent: 4175926 (1979-11-01), Wisotsky
patent: 4520088 (1985-05-01), Senga et al.
patent: 4608411 (1986-08-01), Meunier et al.
patent: 4762867 (1988-08-01), Flodin et al.
patent: 5763374 (1998-06-01), Sakai et al.
patent: 5891831 (1999-04-01), Matsuya et al.
patent: 6090169 (2000-07-01), Krull et al.
patent: 6323164 (2001-11-01), Liesen et al.
patent: 6342553 (2002-01-01), Hodgson et al.
patent: 6908886 (2005-06-01), Jones et al.
patent: 2001/0056164 (2001-12-01), Duncum et al.
patent: 2005/0085588 (2005-04-01), Baloche et al.
patent: 0 345 008 (1989-12-01), None
patent: 59025888 (1984-02-01), None
patent: 59-122509 (1984-07-01), None
patent: 04046353 (1992-02-01), None
patent: 04046354 (1992-02-01), None
patent: 04095971 (1992-03-01), None
patent: 04288558 (1992-10-01), None
patent: 05150560 (1993-06-01), None
patent: 06027747 (1994-02-01), None
patent: 06051569 (1994-02-01), None
patent: 08155586 (1996-06-01), None
patent: 10204354 (1998-08-01), None
patent: 2001131455 (2001-05-01), None
patent: WO 00/78891 (2000-12-01), None
patent: WO 03/014170 (2003-02-01), None
Abstract, English language translation of JP 59-122509, Jul. 16, 1984.
Preparation of Octadecyl Acrylate/Maleic Anhydride/Styrene Copolymer AAMAS as Pour Point Depressant; Song Z.-Z; Zhang G.-C; Ge J.-J.; Petroleum Eng. Dept., Petroleum University; Oilfield Chemistry 17/2, 122-125, Jun. 2000.

Affiliated with

Also associated with

Rating

Paraffin inhibitors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Paraffin inhibitors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Paraffin inhibitors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3996106