Patent classifications
C23F11/02
APPARATUS FOR INHIBITING CORROSION OF ARTICLES WITH METAL SURFACES
A molded VCI lid inhibits corrosion of metal surfaces on articles in a recloseable container. A method includes providing a molded VCI lid for inhibiting corrosion of metal surfaces on articles in a recloseable container.
APPARATUS FOR INHIBITING CORROSION OF ARTICLES WITH METAL SURFACES
A molded VCI lid inhibits corrosion of metal surfaces on articles in a recloseable container. A method includes providing a molded VCI lid for inhibiting corrosion of metal surfaces on articles in a recloseable container.
Gas Blanketing Management of Low-Pressure Hydrocarbon Tanks
A hydrocarbon tank system environment corrosion inhibitor includes use of inert gas, preferably Nitrogen, to blanket ullage and interstice through the tank system. Blanket gas is provided is controller into coupling to access ullages. Blanket gas is provided upon fueling events to stabilize the pressure m the system and prevent entry of atmospheric air and water (vapor). Blanket gas may be continuously run into the ullage and/or other spaces in tank system. A controlled system allows for monitoring of pressures in the tank, and thereby identifies pressure events and even leaks in system due to unusual events, or general loss of pressure.
Gas Blanketing Management of Low-Pressure Hydrocarbon Tanks
A hydrocarbon tank system environment corrosion inhibitor includes use of inert gas, preferably Nitrogen, to blanket ullage and interstice through the tank system. Blanket gas is provided is controller into coupling to access ullages. Blanket gas is provided upon fueling events to stabilize the pressure m the system and prevent entry of atmospheric air and water (vapor). Blanket gas may be continuously run into the ullage and/or other spaces in tank system. A controlled system allows for monitoring of pressures in the tank, and thereby identifies pressure events and even leaks in system due to unusual events, or general loss of pressure.
SELECTIVE SURFACE FINISHING FOR CORROSION INHIBITION VIA CHEMICAL VAPOR DEPOSITION
A versatile, thermally stable and economically effective corrosion inhibition treatment for copper (Cu) metal and selected metals surface through a single step chemical vapor deposition (CVD) of selected inhibitor compounds at temperatures as low as 100-200 C. is described in this invention. The resulting CVD deposited inhibition coating is thermally stable to 300 C. and protects Cu and selected metals from active corrosion in various technologically important operational environments. The selective coating for copper metal is achieved by controlling the chemistry of bonding between the Copper metal surface and inhibitor material used. The technique can be accomplished by using one or more inhibitors separately or in combination in order to create an all-terrain stable & robust corrosion prevention coating for copper metal.
SELECTIVE SURFACE FINISHING FOR CORROSION INHIBITION VIA CHEMICAL VAPOR DEPOSITION
A versatile, thermally stable and economically effective corrosion inhibition treatment for copper (Cu) metal and selected metals surface through a single step chemical vapor deposition (CVD) of selected inhibitor compounds at temperatures as low as 100-200 C. is described in this invention. The resulting CVD deposited inhibition coating is thermally stable to 300 C. and protects Cu and selected metals from active corrosion in various technologically important operational environments. The selective coating for copper metal is achieved by controlling the chemistry of bonding between the Copper metal surface and inhibitor material used. The technique can be accomplished by using one or more inhibitors separately or in combination in order to create an all-terrain stable & robust corrosion prevention coating for copper metal.
Gas phase rust-resisting material for various metals and preparation method thereof
A gas phase rust-resisting material for various metals includes, calculated in parts by weight, following components of: 78.5 to 95.5 parts of benzotriazole, 78.5 to 95.5 parts of dicycloethylamine nitrite, 500 to 800 parts of octadecylamine, 9000 to 11000 parts of ethanol, 33.5 to 38.5 parts of a reinforcing agent and 23.5 to 25.5 parts of a rust-resistant microcapsule. Further disclosed is a method for preparing the gas phase rust-resisting material which is suitable for various metals.
Gas phase rust-resisting material for various metals and preparation method thereof
A gas phase rust-resisting material for various metals includes, calculated in parts by weight, following components of: 78.5 to 95.5 parts of benzotriazole, 78.5 to 95.5 parts of dicycloethylamine nitrite, 500 to 800 parts of octadecylamine, 9000 to 11000 parts of ethanol, 33.5 to 38.5 parts of a reinforcing agent and 23.5 to 25.5 parts of a rust-resistant microcapsule. Further disclosed is a method for preparing the gas phase rust-resisting material which is suitable for various metals.
COMPOSITIONS AND METHODS FOR RELEASING VAPOR PHASE CORROSION INHIBITORS
Disclosed are combinations of substances for stimulus-dependent release of vapor phase corrosion inhibitors including: (1) a matrix; (2) at least one symmetrical or asymmetrical carboxylic acid anhydride of at least one first carboxylic acid, (3) at least one salt of at least one second, highly volatile corrosion-inhibiting carboxylic acid, wherein (2) is a non-volatile anhydride or an anhydride with low volatility with a vapor pressure of preferably lower than 110.sup.3 Pa at 25 C. The combination is effective to release the first carboxylic acid(s) by hydrolysis of the anhydride and release the second carboxylic acid(s) of (3) from its salt by proton transfer from first carboxylic acid(s), so that the second carboxylic acid(s) is/are present as a corrosion inhibitor in the vapor phase. Also disclosed are methods for producing and using the combinations for corrosion protection of conventional industrially used metals, in, e.g., packing, storage and transport processes.
COMPOSITIONS AND METHODS FOR RELEASING VAPOR PHASE CORROSION INHIBITORS
Disclosed are combinations of substances for stimulus-dependent release of vapor phase corrosion inhibitors including: (1) a matrix; (2) at least one symmetrical or asymmetrical carboxylic acid anhydride of at least one first carboxylic acid, (3) at least one salt of at least one second, highly volatile corrosion-inhibiting carboxylic acid, wherein (2) is a non-volatile anhydride or an anhydride with low volatility with a vapor pressure of preferably lower than 110.sup.3 Pa at 25 C. The combination is effective to release the first carboxylic acid(s) by hydrolysis of the anhydride and release the second carboxylic acid(s) of (3) from its salt by proton transfer from first carboxylic acid(s), so that the second carboxylic acid(s) is/are present as a corrosion inhibitor in the vapor phase. Also disclosed are methods for producing and using the combinations for corrosion protection of conventional industrially used metals, in, e.g., packing, storage and transport processes.