Patent
Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers
TLDR
In this paper, an admixture of water-soluble polycarboxylates and an unsaturated carboxylic acid was used to inhibit the formation of insoluble alluvial, metal oxide and metal hydroxide deposits in an aqueous system.Abstract:
The instant invention is directed to an admixture, and its use in inhibiting scale and corrosion in aqueous systems, comprising: (a) a water-soluble polymer having a weight average molecular weight of less than 25,000, as determined by low angle laser light scattering, comprising an unsaturated carboxylic acid and an unsaturated sulfonic acid, or their salts, having a ratio of 1:20 to 20:1, and (b) at least one compound selected from the group consisting of water-soluble polycarboxylates, phosphonates, phosphates, polyphosphates, metal salts and sulfonates. The instant invention is also directed to a method of inhibiting the formation of insoluble alluvial, metal oxide and metal hydroxide deposits in an aqueous system, comprising adding to the system at least 0.1 mg/l of a water-soluble polymer having a weight average molecular weight of less than 25,000, as determined by low angle laser light scattering, comprising an unsaturated carboxylic acid and an unsaturated sulfonic acid, or their salts, having a ratio of 1:20 to 20:1 and a phosphonate.read more
Citations
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Patent
Atherectomy catheter with aligned imager
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Journal ArticleDOI
Polymeric corrosion inhibitors for the oil and gas industry: Design principles and mechanism
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Polyelectrolyte complexes for oil and gas applications
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References
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Patent
Acrylamido-sulfonic acid polymers and their use
K Robert Lange,Robert H Schiesser,Richard G Tonkyn,Russell T Dean,Executrix By S Martha Dean +4 more
TL;DR: In this paper, the use of polymers and copolymers of acrylamido-sulfonic acid compounds and their use as dispersants for particles contained in aqueous systems is discussed.
Patent
Inhibition of scale deposition
TL;DR: In this paper, a method of inhibiting scale formation in aqueous systems in which copolymers of 2-acrylamido-2-methylpropyl sulfonic acid and acrylic acid are used.
Patent
Water treating process
TL;DR: A water treating agent which comprises a specific polymer containing a structural unit that is derived from a monomer having an ethylenically unsaturated bond and has one or more carboxyl radicals, at least a part of said carboxesyl radicals being modified, is capable of preventing the formation of corrosion, scale and contamination on the surface of a metal that is in contact with water as discussed by the authors.
Patent
Scale inhibition and corrosion inhibition
TL;DR: In this paper, a method of inhibiting corrosion and scale formation in an aqueous system is disclosed which comprises the step of treating the said system with 0.1 to 500 parts per million by weight of the total Aqueous content of the system, of a composition which may additionally include zinc and which comprises a polymer selected from the group consisting of polymers having recurring units of the formula.
Patent
Water-soluble sulfonate polymers as flocculants
TL;DR: In this paper, the authors show that 2-ACRYLAMIDO-2-METHYLPROPANESULFONIC ACID and its SALTS are useable as FLOCCULANTS for AQUEOUS systems, ESPECIALLY in COMBINATION with INORGANIC CO-FLOCCulanTS.