Patents for C23F 11 - Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent (9,217)
05/1994
05/17/1994CA1329474C Cooling water corrosion control method and composition
05/11/1994DE4237501A1 Use of water insol. di:alkyl ethers - as oil phase in metal surface treating agents.
05/10/1994CA2042527C Zinc-alkaline batteries
05/04/1994EP0595686A1 Process for pickling steel materials
05/04/1994EP0594806A1 Composition and method for scavenging oxygen
05/04/1994EP0594562A1 Derivatives of n,n-bis(2,2-dimethyl-2-carboxylethyl)amine, manufacturing procedure and use of same
05/03/1994US5308498 Hydroxamic acid containing polymers used as corrosion inhibitors
05/03/1994CA1329073C Copper corrosion inhibitors and their use in cooling water systems
04/1994
04/28/1994WO1994008729A1 Reducing or avoiding pinhole formation in autodeposition on zinciferous surfaces
04/28/1994CA2143668A1 Reducing or avoiding pinhole formation in autodeposition on zinciferous surfaces
04/26/1994US5306355 System for the passivation of metal surfaces affected by operating conditions and agents promoting corrosion
04/26/1994CA1328934C Inhibiting corrosion in aqueous heat transfer apparatus
04/26/1994CA1328885C Cotelomer compounds
04/20/1994EP0593294A1 Amine derivatives as corrosion inhibitors
04/20/1994EP0593230A1 Metal corrosion inhibiting compositions
04/13/1994EP0592118A1 Method of controlling corrosion and biological matter in copper and copper alloy cooling water systems
04/12/1994US5302579 Herbicide and method using adduct of glyphosate, sulfuric acid and chalcogen compound
04/12/1994US5302321 Adding vitamin A
04/12/1994US5302307 Liquid anticorrosive and antiscaling deicing composition
04/06/1994EP0591000A1 Finely divided anthraquinone formulations as inhibitors of sulfide production from sulfate-reducing bacteria
04/06/1994EP0590879A1 Method and composition for inhibiting silica and silicate deposition
04/05/1994US5300323 Aqueous solution of hydrofluoric acid
04/05/1994US5300247 Heat exchangers consisting of bis 2,2-(2-heptadecyl)-5H-oxazolylidine; corrosion resistance; antisludging agents
04/05/1994US5300235 Product obtained by amidating di-or polyamine with a fatty acid, then reacting with acrylic acid or ester or halocarboxylic acid; free or primary and secondary nitrogens to lower ecotoxicity
03/1994
03/31/1994WO1994006625A1 Reducing galvanic degradation of hybrid metal/composite structures
03/29/1994US5298221 Inhibition of scale formation and corrosion by sulfonated organophosphonates
03/23/1994EP0588494A1 Method for the inhibition of oxygen corrosion in aqueous systems by the use of a tannin activated oxygen scavenger
03/22/1994US5296167 Treatment with dihydrogen orthophosphate salts
03/16/1994EP0587434A1 Corrosion inhibition composition
03/16/1994EP0586421A1 Method of producing an amide product mixture, an amide product mixture and the use thereof.
03/16/1994CN1083835A Corrosion inhibition composition background of the invention
03/16/1994CN1083834A Rust preventive coating
03/15/1994US5294519 Copper clad lamination of photosensitive coating on plates
03/15/1994US5294400 Corrosion prevention in boilers using 1,3-imidazole
03/15/1994US5294371 Hydroxyphosphonoacetic acid derivatives
03/12/1994CA2105931A1 Corrosion inhibition composition
03/10/1994DE4328716A1 Road vehicle with at least one corrosion-prone bodywork section - has corrosion-inhibiting medium applied to it in liq. form in bearer means
03/08/1994US5292480 Acid-anhydride esters as oil field corrosion inhibitors
03/08/1994US5292455 Using 2-hydroxyphosphonoacetic acid
03/08/1994CA1327446C Polyalkylenepolyamines as corrosion inhibitors
03/02/1994EP0584711A1 Alkenyl succinic acid derivatives as metal working agents
03/02/1994EP0584703A1 Protective coatings of perfluorinated polymer solutions
03/01/1994US5290469 Sodium salts of acrylic acid polymers
03/01/1994US5290468 Polycarboxylate-containing antifreeze/coolant additive for use in hard water applications
03/01/1994US5290467 Polycarboxylate-containing antifreeze/coolant additive for resisting cavitation erosion-corrosion on aluminum
02/1994
02/23/1994CA2104505A1 Alkenylsuccinic acid derivatives as metalworking auxiliaries
02/22/1994US5288907 Hydrogenation of nitroalkanes to hydroxylamines
02/22/1994US5288419 Containing sodium salt of acrylic acid-maleic acid copolymer or secondary alcohol modified polyacrylic acid
02/22/1994US5288315 Surface coatings
02/17/1994WO1994003564A1 Composition and use
02/17/1994WO1994003462A1 Ammonium organo-phosphorus acid salts
02/17/1994WO1994000392A1 Scavenging of hydrogen sulphide
02/17/1994CA2141294A1 Composition and use
02/17/1994CA2141293A1 Ammonium organo-phosphorus acid salts
02/16/1994CN1082067A Process for preparing polysuccinimides using a rotary tray dryer
02/08/1994US5284994 Injection of antifoulants into thermal cracking reactors
02/01/1994US5283276 Amorphous overbased alkaline earth metal sulfonate, solvent or plasticizer, polymeric material
02/01/1994US5282976 Adding terpolymer of acrylic or methacrylic acid, vinyl acetate or alcohol, allyloxyhydroxyalkylsulfonic acid or salt
01/1994
01/25/1994CA1326429C Process to inhibit scale formation and corrosion caused by manganese in water systems by use of aminophosphonic acids
01/22/1994CA2099174A1 Scale inhibitor composition
01/20/1994WO1994001501A1 Corrosion protection material and method, and use thereof for aluminium alloys
01/18/1994US5279651 Mixture of 2,4-diamino-6-mercaptpyrimidine sulfate and group 4 or 5 oxysalt
01/12/1994EP0578448A1 Method for preparing polysuccinimides using a rotary tray dryer
01/12/1994CN1080668A Producing process for air-phase corrosion inhibitor
01/11/1994US5278074 Method of monitoring and controlling corrosion inhibitor dosage in aqueous systems
01/11/1994CA2099467A1 Method for preparing polysuccinimides using a rotary tray dryer
01/05/1994EP0577486A1 Process for corrosion protection of metal objects and metal objects obtained
01/05/1994DE4221457A1 Protective compsn. for hot water heating plant with oxygen@-permeable plastic pipes - contains reducing agent and complexing agent
01/04/1994US5275760 Mixing hydrogel-forming polymer with pumpable oil to form slurry; gelling corrosion inhibitor solution
01/04/1994US5275744 Derivatives of polyalkylenepolyamines as corrosion inhibitors
12/1993
12/22/1993EP0574556A1 Surface finish compositions
12/14/1993US5269956 Compatible corrosion inhibitor combinations
12/08/1993EP0573287A1 Heat transfer fluid corrosion inhibitors
12/08/1993CN1079301A Simultaneous monitoring of multiple water treatment performance indicators
12/07/1993US5268127 Using an alkali metal halide
12/04/1993CA2094419A1 Methods for inhibiting the corrosion and deposition of iron and iron-containing metals in aqueous systems
12/02/1993DE4217534A1 New 1-amido:alkyl-di:, tri: or tetrazole derivs. - used as corrosion inhibitors for copper or aluminium, preservatives, disinfectants and textile finishing agents
11/1993
11/30/1993US5266228 Corrosion-inhibiting automotive coolant solutions containing effective amounts of sodium silicate having a low ratio of silica to sodium oxide
11/30/1993CA1324764C Reaction typed deodorant composition having a corrosion-inhibiting activity
11/23/1993US5264179 Scavengers comprising starch derivatives
11/23/1993US5264155 Addition of salicylaldoxime in industrial cooling water systems by forming a protective film on metal surface
11/18/1993EP0569884A1 Rust inhibitor
11/18/1993DE4215559A1 High yield N-alkyl:alkanol:amine prepn. - by hydrogenation of alkyl-substd. oxazoline or oxazine using catalyst contg. copper, chromium and-or nickel
11/16/1993US5262078 Corrosion-inhibiting automotive coolant solutions containing effective amounts of sodium silicates and sodium nitrate, and methods of inhibiting corrosion of automotive cooling systems using such coolant solutions
11/02/1993US5258532 Hydroxyalkyl substituted o-hydroxynaphthoic acid derivatives; corrosion inhibitors
11/02/1993US5258522 Imidazole-silane compounds and metal surface finishing agent containing the same
11/02/1993US5258125 Removing dissolved oxygen from alkaline water
10/1993
10/31/1993CA2067668A1 Preparation of neutral salt solutions of phosphonocarboxylic acids
10/28/1993WO1993021361A1 Composition and method for scavenging oxygen
10/28/1993WO1993021116A1 Iminoalcohol-oxazolidine mixtures and their use
10/27/1993EP0567275A2 Carbohydrazones in the treatment of boiler water
10/27/1993EP0567212A1 The reaction product of nitrogen bases and phosphate esters as corrosion inhibitors
10/27/1993EP0566956A1 Corrosion inhibitor
10/27/1993EP0566902A1 Method of monitoring and controlling corrosion inhibitor dosage in aqueous systems
10/27/1993EP0566789A1 Vapor phase corrosion inhibitor material
10/27/1993CN1077731A Composition and method for scavenging oxygen
10/26/1993US5256332 Using mixture of an orthophosphate, 1,2,3-triazole compound, polyepoxysuccinic acid and copolymer of acrylic acid and allyl hydroxypropyl sulfonate ether
10/26/1993US5256311 Hydroxyalkylhydroxylamine oxygen scavenger in aqueous mediums
10/23/1993CA2094577A1 Method of monitoring and controlling corrosion inhibitor dosage in aqueous systems
10/23/1993CA2094576A1 Carbohydrazones as boiler water oxygen scavengers
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