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| Number | Title | Issue Date |
| 6752936 | Electrically conductive polymers An electrically conductive polymeric article including a polymeric material capable of exhibiting electrical conductivity; the polymeric material being rendered electrically conductive by treatment with a viologen salt. ... | 06/22/2004 |
| 6685766 | Corrosion inhibitor for steel-reinforced concrete An organosilane- and/or organosiloxane-containing composition reduces active corrosion of steel reinforcement in concrete.... | 02/03/2004 |
| 6506715 | Automotive wash and wax composition and method of use thereof An automobile wash and wax composition suitable for simultaneously washing and waxing a soiled exterior surface of a vehicle without buffing. The automotive wash and wax composition being an aqueous emulsion containing an anionic surfactant, a silicone oi... | 01/14/2003 |
| 6303079 | Corrosion inhibitor compositions The present invention relates to a process for making and a method for using a corrosion inhibitor composition to reduce the corrosion rate of a metal by a fluid containing a corrosion agent. The corrosion inhibitor composition comprises at least a quater... | 10/16/2001 |
| 6171521 | Zwitterionic water-soluble substituted imine corrosion inhibitors This invention is directed to a zwitterionic water-soluble imine of formula: ##STR1## wherein R1 is heterocyclyl, heteroaryl, aryl, arylalkyl, cycloalkyl or lower alkyl; R2 is alkyl, alkenyl, aminoalkyl, diaminoalkyl, hydroxyalk... | 01/09/2001 |
| 6077460 | Corrosion inhibition The invention relates to the use of at least one compound of general formula (I), ##STR1## in which R1, R2 and R3 independently of one another represent a hydrogen atom or an alkyl or alkenyl radical; R4 ... | 06/20/2000 |
| 6071436 | Corrosion inhibitors for cement compositions Compositions and methods relating to cementitious compositions are provided. The addition of an amidoamine that is the reaction product of polyalkylenepolyamines and short-chain alkanedioic acids or reactive derivatives thereof to cementitious composition... | 06/06/2000 |
| 5993693 | Zwitterionic water-soluble substituted imine corrosion inhibitors Zwitterionic water-soluble imine corrosion inhibitors of the general formula: ##STR1## wherein R3 is an anionically charged group. Preferred zwitterionic imines are the reaction products of the Michael addition of acrylic acid to an i... | 11/30/1999 |
| 5902515 | Solutions and methods for inhibiting corrosion A corrosion inhibitor comprising a dispersant, an imidazoline, an amide, an alkyl pyridine and a heavy aromatic solvent. The resultant blend effectively inhibits corrosion of flow lines containing low pH mixtures of hydrocarbons, water, and acid gases.... | 05/11/1999 |
| 5853620 | Compositions and compounds to minimize hydrogen charging and hydrogen induced cracking of steels The subject matter of this invention is directed to compositions and compounds to minimize hydrogen charging and hydrogen induced cracking of steels comprising, in one embodiment, a propylene diamine compound and in another a carrier and propylene diamine... | 12/29/1998 |
| 5749947 | Use of guanidinium salts of unsaturated fatty acids as corrosion inhibitors A method for the temporary protection of metal surfaces from corrosion is provided in which the metal surface to be temporarily protected from corrosion is coated with a guanidinium salt of an unsaturated fatty acid containing 6 to 44 carbon atoms.... | 05/12/1998 |
| 5409528 | Corrosion inhibitors for coatings A coating formulation containing as a corrosion inhibitor an effective amount of a tertiary or quaternary organo ammonium nitrite having a solubility such that it produces a concentration of nitrite ions in water of from about 1×10-6 mol per l... | 04/25/1995 |
| 5391396 | Method for protecting metal products against corrosion and metal products obtained from said method The method for providing a temporary protection against corrosion of a cleaned metal product, in particular a metal sheet, comprises the following steps: applying on at least a part of the metal product an emulsion obtained by dispersion in water of 3 to ... | 02/21/1995 |
| 5374365 | Polyphenol compounds and their use in lubricants and coatings A polyphenol compound wherein the aromatic rings are linked by direct bonds or by a divalent link in the ortho position relative to the --OH group and the end aromatic rings contain either oximino substituents or substituted alkylaminomethyl substituents ... | 12/20/1994 |
| 5266104 | Thread protection system A corrosion inhibiting composition for protection of the threads of oil country tubular goods, including a vapor phase corrosion inhibitor and a liquid phase corrosion inhibitor in water solution. The corrosion inhibitor may be left on the threads for use... | 11/30/1993 |
| 5190723 | Process for inhibiting corrosion A process for inhibiting corrosion involves new compositions which comprise an organic material and, a corrosion inhibitor which is a compound having the formula: ##STR1## wherein R1 and R2 may be the same or different and each ... | 03/02/1993 |
| 5133900 | Thermooxidatively stable compositions A composition which is thermooxidatively stable is provided which comprises a normally thermooxidatively unstable organic compound and effective amount of a thermooxidative stabilizing composition comprising an oil soluble sulfonate of a metal selected fr... | 07/28/1992 |
| 5120356 | Electrodepositable coating compositions The present invention provides an aqueous coating composition comprising: a) an aqueous electrodepositable film-forming binder; and b) as corrosion inhibitor, an effective amount of the reaction product of i) cinnamaldehyde and ii) an amine having the formula R--(C... | 06/09/1992 |
| 5102457 | Anticorrosive surface coatings Compounds of formula I: ##STR1## in which R, R1, R2, R3, R4, R5, R6 and R7 are as defined in claim 1, are suitable as corrosion inhibitors in surface coatings for metals.... | 04/07/1992 |
| 4814010 | Corrosion inhibition A method for the inhibition of corrosion of metals involves treatment of the metal surface with a polyester having a functional terminal group such as an amine. The polyester may be used together with other corrosion inhibitors, a useful combination being... | 03/21/1989 |
| 4717541 | Reaction product of trifluoroethanol and a cyclohexylamine and/or a dicyclohexylamine A product having corrosion inhibiting properties consisting essentially of the reaction product of a triflouroethanol with a cyclohexylamine or with a mixture of cyclohexylamine and a dicyclohexylamine; a composition having corrosion inhibiting properties... | 01/05/1988 |
| 4687634 | Process for inhibiting corrosion of metal surfaces A process for inhibiting corrosion of metal surfaces, such as steel, in a closed system which comprises maintaining in such system a composition containing a major amount of an oleaginous vehicle, such as petroleum hydrocarbon, and minor amounts of an oil... | 08/18/1987 |
| 4663124 | Reaction product of hydrogen sulfide with the reaction product of a dione and a primary polyamine A series of water-dispersible corrosion inhibiting solutions are disclosed which contain about 10 ppm to about 70% by weight of the reaction product of a dione and a primary polyamine. The use of these reaction products dramatically reduces H2 ... | 05/05/1987 |
| 4595523 | Corrosion inhibition in engine fuel systems There is provided a corrosion inhibitor for use in the storage, distribution and use of alcohol as a fuel for internal combustion engines. The inhibitor comprises a triazole and an amine salt of an acid. There is further provided a corrosion-inhibited alc... | 06/17/1986 |
| 4440666 | Method of making corrosion inhibiting polyamine amides, the amides, and use therefor A hydrocarbonaceous liquid stream is modified to contain a minor amount of the amide reaction product of a polyalkylene polyamine, a neo-acid having 5 to 20 carbon atoms, the neo-acid having three alkyl groups on the carbon atom which is in the alpha posi... | 04/03/1984 |
| 4427448 | Corrosion inhibiting compositions for metals An oil-based corrosion inhibitor containing an aliphatic amine, a fatty acid and its ester, and an organotin compound provides improved corrosion resistance to metals and is easily removed when the metals are to be processed.... | 01/24/1984 |
| 4422953 | Corrosion inhibition of halocarbon systems This invention relates to a method of inhibiting corrosion in halohydrocarbon systems such as haloethylene or other corrosive systems, which comprises treating such system with alkyl, alkenyl, or alkyl-X succinic acids or derivatives thereof, for example,... | 12/27/1983 |
| 4405494 | Polyhydroxy-polyalkylene-polyamine salts of maleic amide acids as corrosion inhibitors in water-in-oil emulsions Polyhydroxy-polyalkylene-polyamine salts of maleic amide acids are useful metal corrosion inhibitors for use in water-in-oil emulsions.... | 09/20/1983 |
| 4388213 | Cyclic amidine based corrosion inhibitors which inhibit corrosion caused by CO2 and H2 S The invention relates to corrosion inhibitors which are amides of cyclic amidines. The inhibitors are particularly useful for preventing the corrosion of metals caused by H2 S and CO2 in water-in-oil, particularly in saltwater-in-oil... | 06/14/1983 |
| 4388214 | Imidazoline based corrosion inhibitors which inhibit corrosion caused by CO2 and H2 S The subject invention relates to corrosion inhibitors prepared by reacting certain imidazolines or precursors thereof with sulfur. The corrosion inhibitors are particularly useful in inhibiting corrosion of metal tanks caused by CO2 and H2... | 06/14/1983 |
| 4354872 | Metal oxide oil slurries A highly stable metal oxide oil slurry useful in reducing slag, facilitating removal of deposits from boiler tubes, and reducing corrosion on the heating surfaces of boilers has been developed. Such a slurry consists essentially of about 50% by weight mag... | 10/19/1982 |
| 4344861 | Bis-amides as corrosion inhibitors A method of inhibiting the corrosion of metals in contact with petroleum and petroleum fractions other than gasoline comprises contacting metal surfaces with a corrosion inhibiting amount of bis-amides resulting from reaction of one mole of amine with one... | 08/17/1982 |
| 4342596 | Non-petroleum based metal corrosion inhibitor A non-petroleum based metal corrosion inhibitor is provided. The inhibitor is a solution of compounds mixed together in particular proportions to form a non-petroleum based coating for preventing, or inhibiting, the oxidation of metals. The solution is pr... | 08/03/1982 |
| 4341657 | Use of quaternized derivatives of polymerized pyridines and quinolines as corrosion inhibitors This invention relates to alkylated derivatives of polymerized aromatic nitrogen heterocyclic compounds as illustrated by polymerized pyridine, quinoline and derivatives thereof; and uses thereof. These compositions are polymerized by treating said aromatic ni... | 07/27/1982 |
| 4326987 | Reaction products of alkyl and alkenyl succinic acids and ether diamines This invention relates to the reaction products of (1) an alkenyl or alkyl succinic acid or the anhydride thereof; and (2) an alkylether diamine; and to the use thereof as a corrosion inhibitor.... | 04/27/1982 |
| 4319063 | Process and compositions for reducing fouling of heat exchange surfaces Fouling of metallic surfaces contacted with petroleum oils at elevated temperatures is reduced by adding to the oil small amounts of an oil-soluble N-alkylamino-alkylbenzene sulfonate, a heterocyclic amine, and phenylhydrazine.... | 03/09/1982 |
| 4312832 | Polymerization of aromatic nitrogen heterocyclic compounds This invention relates to polymerized aromatic nitrogen heterocyclic compounds as illustrated by compounds containing nitrogen heterocyclic rings and uses thereof. Polymerization is effected by treating said aromatic nitrogen heterocyclic compounds at ele... | 01/26/1982 |
| 4308168 | Vapor phase corrosion inhibitor compositions and method of inhibiting corrosion using said compositions A method for inhibiting corrosion of metal by contacting the metal with a volatile alkyl ester of an amino acid. The invention also provides compositions containing these alkyl esters of amino acids as an active anti-corrosion inhibitor. These composition... | 12/29/1981 |
| 4253876 | Corrosion inhibitors This invention relates to a composition comprising (1) an alkenyl or alkyl succinic acid or the anhydride thereof; and (2) a triester of about 3 moles of an alkenyl or alkyl succinic acid or the anhydride thereof and about 1 mole of a trialkanolamine; and to the us... | 03/03/1981 |
| 4226700 | Method for inhibiting fouling of petrochemical processing equipment Method for inhibiting the formation of foulants on petrochemical equipment which involves adding to the petrochemical, during processing, a composition comprising a thiodipropionate and either a dialkyl acid phosphate ester or a dialkyl acid phosphite est... | 10/07/1980 |
