Corrosion Inhibitors for Package Protection

Coating compositions for food and beverage containers that do not contain extractible quantities of compounds like BPA, Bisphenol A glycidyl ether, PVC, or styrene. The compositions are self-crosslinking or crosslinkable acrylic copolymers that can be applied to packaging substrates using spray coating techniques. The copolymers are made from styrene-mimicking monomers containing cyclic groups and ethylenically-unsaturated pendant groups, with at least some of the styrene-mimicking monomers being polycyclic compounds with ring unsaturation. This allows styrene-like properties without the use of styrene itself. The compositions can provide coatings with desirable properties like blush resistance, corrosion resistance, pot life stability, and initial metal exposure when applied to food and beverage

Source

Export packaging case with enhanced durability and rust prevention by injecting rust prevention oil into the interior of a rust prevention panel and absorbing it into the exterior. This provides continuous rust protection during long-term shipping. The panel is made of wooden boards with center bars spaced apart. One end is closed with a cylindrical block and oil is injected. The other end is closed. This prevents rust from spreading through the panel during transportation.

Source

A canister for preventing corrosion of precursor vaporizer systems used in semiconductor manufacturing, particularly when using corrosive precursors containing chlorine. The canister has a carbon coating layer applied to at least the inner surfaces in contact with the precursor. This prevents corrosion of the stainless steel canister during high-temperature reactions with chlorine-containing precursors. The carbon coating forms a barrier to prevent chemical reactions between the precursor and canister materials.

Source

A canister for preventing corrosion inside the canister when using certain precursors that cause corrosion in stainless steel canisters. The canister has a carbon coating layer applied to at least the inner surfaces that contact the precursor. This prevents chemical and physical interactions between the precursor and the canister that can cause corrosion at high temperatures.

Source

Biodegradable volatile corrosion inhibitor (VCI) compositions for packaging that improve corrosion protection compared to conventional VCI compositions. The biodegradable VCI compositions contain a blend of biodegradable polyesters, volatile corrosion inhibitors, and fillers. The compositions have lower water vapor transmission rates (WVTR) than conventional VCI compositions but still provide effective corrosion inhibition. The lower WVTR is achieved using fillers like talc, calcium carbonate, and clay. The blended polyesters, which can be homopolymers or copolymers, provide desirable properties like tear strength and transparency. The blended composition with lower WVTR and good properties provides better corrosion inhibition than conventional compositions with higher WVTR.

Source

Manufacturing method for aluminum vacuum packaging material that has both rust prevention and antistatic properties. The method involves mixing rust inhibiting agents like calcium benzoate, potassium sorbate, sodium caprylate, glyceryl monostearate, zinc oxide, and silicon dioxide to create a vaporizable rust preventive agent. This agent is then mixed with polyethylene wax and sprayed between the aluminum foil and sack during packaging. The wax coating prevents rusting of the packaged metal objects and also reduces static electricity compared to conventional aluminum packaging.

Source

A sealable anti-corrosion varnish for packaging films for aggressive fillings like acids that provides both corrosion protection and high sealing strength. The varnish is applied in a single line that separates during drying, concentrating the anti-corrosive component on the aluminum surface. The varnish composition has specific solvents, binders, sealing component, and acid catalyst ratios to achieve this.

Source

A rust-preventive film for packaging metal materials that provides superior rust protection regardless of the method of use. The film has an inner layer containing nitrobenzoic acid and ammonium benzoate in specific amounts, along with a thermoplastic resin. The outer layer contains sodium nitrite. The inner layer ratios are 0.1-6.0 parts nitrobenzoic acid and 0.1-6.0 parts ammonium benzoate per 100 parts resin. The inner layer has a nitrobenzoic acid to ammonium benzoate ratio of 1:1. The outer layer has 0.1-4.0 parts sodium nitrite per 100 parts resin, and the inner and outer layer ratios are 8:2 to 6:4 parts total ammonium to sodium nitrite per volume.

Source

Coating composition for metal containers like aerosol cans that provides improved corrosion resistance and adhesion when coated on internal surfaces of metal packaging containers. The coating is made from a polyester polymer containing a tris-2-hydroxyethyl isocyanurate (THEIC) segment. It also includes a catalyst containing titanium or a quaternary ammonium compound. This allows the coating to cure at lower temperatures compared to similar compositions. The coating can further have an adhesion promoter to overcome issues with cleanliness of the metal substrate.

Source

Coating food and beverage packaging with a formula that contains a polymer with acid groups and a polyoxazoline compound. The coating is applied to the package surface and cured to provide a safe, formaldehyde-free coating that can be used in food contact applications. The coating composition can be applied by spraying, dipping, or coil coating methods. The coated package provides improved properties like adhesion, corrosion resistance, and barrier protection for food packaging applications.

Source

Coating packaging materials like cans and tubes with a specific composition to improve performance and safety. The coating contains a polymer with acid functional groups and a polyoxazoline. It can be applied to the inside or outside of packages using methods like spraying, dipping, or roll coating. The coating provides properties like adhesion, barrier protection, and corrosion resistance when cured. It's suitable for food contact and can be applied to metal, plastic, and laminate packages.

Source

An anti-corrosion packaging material for protecting steel coils during transportation and storage to prevent damage and deformation. The packaging material covers the outer and inner peripheral surfaces of the steel coil. It consists of a corrugated cardboard outer plate, an inner plate, and a rust-preventing layer between them. The rust-preventing layer can be applied or coated on the inner and outer surfaces of the plates. It contains a polyethylene base with rust inhibitors like orthophosphates, silicate, nitrite, chromate, benzoate, lime, polyphosphate, alkylallyl sulfonate, petroleum sulfonate, metal soap, or rust inhibitors. This layer prevents rusting of the steel coil from external impact.

Source

A packaging method for iron coils that prevents rust and staining by blocking oxygen inside the packaging. The coil is wrapped with an outer packaging material, then an inner wrapping material is inserted around the coil. Both wrappings are sealed against the coil to prevent air ingress. Vacuum caps can be used to evacuate any remaining air. This creates an oxygen-free environment inside the coil packaging to prevent rust and staining. The wrapping materials can be flexible synthetic films like polypropylene, ABS, or polyethylene. Additives like UV blockers, antistatics, rubbers, and pigments can be included in the wrapping materials.

Source

Sealable anticorrosive coating for packaging films for aggressive products like chemicals that provides both corrosion protection and high sealing resistance when sealed with materials like polypropylene. The coating contains specific solvents, reactive binders, sealing component, and acid catalyst ratios to achieve both properties. The solvents have boiling points between 30-250°C, the binders have Tg between 0-200°C, the sealing component has Tg between -80 to 100°C, and the acid catalyst.

Source

A rust-preventive film for deep drawing applications that provides both rust protection and gas barrier properties. The film is a multi-layer construction with an outer layer, an intermediate layer, and an innermost layer. The outermost layer has a gas barrier layer made of polyamide or ethylene-vinyl acetate copolymer saponified resin. The innermost layer contains a vaporizable rust inhibitor. The film has a thickness distribution where the outermost layer is 30-90% of the total thickness. This allows deep drawing without cracking while still providing rust prevention and gas barrier. The film can be manufactured by coextrusion.

Source

Coated food and beverage containers that provide corrosion protection without using BPA or styrene. The coating is made from a latex emulsion containing a polymerized latex polymer with reactive functional groups like hydroxyl or carboxylic acid. The latex is applied to the container interior and cured with crosslinkers like hydroxyalkylamides or hydroxyalkyl ureas. The reactive latex forms a crosslinked network on the container surface to prevent corrosion. The coating can be used on metal containers like cans without BPA or styrene.

Source

Chromium-chromium oxide (Cr-CrOx) coating for steel packaging substrates that replaces chromium VI (hexavalent chromium) and provides improved corrosion resistance and adhesion without the hazards of hexavalent chromium. The Cr-CrOx coating is deposited in a single electrolytic stage using a specific electrolyte composition. The coating consists of mixed chromium metal and chromium oxide layers, preventing separate chromium metal and chromium oxide layers. This allows electrodeposition of both chromium species in the same stage. The electrolyte has a formic acid chelating agent, potassium chloride conductivity enhancer, and potassium bromide depolarizer. The coating provides equivalent or better corrosion resistance and adhesion compared to conventional tinplate, while avoiding hexavalent chrom

Source

Coated containers with improved resistance to corrosion and solvents for food and beverage packaging. The coating is made from a specific composition containing a crosslinking polycarbodiimide resin with specific functional groups. The coating composition can be applied by roll coating or sheet coating methods to metal substrates like steel or aluminum for forming containers like cans. The coating composition has a polycarbodiimide resin with terminal NCO functionality, an organic group-containing polyisocyanate, and a compound containing active hydrogen added before, during, or after polycarbodiimide formation. This composition provides improved adhesion, resistance to solvents like MEK, and color stability compared to traditional coatings.

Source

Coating composition for packaging materials like metal cans and plastic bottles that provides corrosion protection, chemical resistance, and food safety. The coating composition contains a latex polymer made by emulsion polymerization with a reactive surfactant. The latex is mixed with water and optionally other components like phosphorus-containing acid. The coating composition can be applied to the inner surface of the packaging to prevent corrosion, protect against chemicals, and not affect food quality. The latex polymer provides flexibility and adhesion while the reactive surfactant allows crosslinking for strength. The phosphorus acid enhances corrosion resistance.

Source

Sealable corrosion protection coating for packaging films used in aggressive product packaging applications like food containers. The coating has two properties: corrosion protection on the aluminum foil and high seal strength on the free surface adjacent to the product. This is achieved by a paint that segregates during drying and concentrates on the aluminum for corrosion resistance and on the free surface for sealability. The paint composition has solvents, reactive binders, a sealing component, and an acid catalyst with specific properties for segregation and adherence.

Source

Sealable corrosion protection coating for packaging films for aggressive products like chemicals, cosmetics, and foods. The coating provides both corrosion resistance and strong sealing when sealed with compatible materials like aluminum. The coating has a specific solvent composition with boiling points between -30°C to -250°C, like 2-Bnfanol, Methoxypropanol, Dibasic ester, and cyclohexane. It also has a reactive binder with a glass transition temperature between -100°C to -50°C, like Epoxy resin. This allows the coating to be applied in a single stroke and provides a corrosion barrier for sealed containers while maintaining good seal strength.

Source

Anticorrosive packaging material for protecting metal products during storage, handling, and transportation to prevent corrosion. The material has an outer barrier layer made of a flexible film and an inner layer of nonwoven material containing a corrosion inhibitor. The nonwoven inner layer provides absorption and drainage to prevent condensation on the metal while the barrier layer protects against external moisture. The inner layer density can be adjusted based on transportation conditions to balance strength and absorbing properties.

Source

Coating composition for food packaging containers that provides improved corrosion resistance, adhesion, stain resistance, and solvent resistance compared to traditional coatings. The composition contains a unique polyether polymer with specific structural features. The polymer has segments with cyclic groups connected by methylene groups. It also contains phenol groups. This polymer is used in coating compositions applied to metal substrates to create protective coatings for food containers. The composition can be applied before or after forming the container. The coating provides improved corrosion resistance, adhesion, stain resistance, and solvent resistance compared to traditional coatings.

Source

Coatings for food and beverage containers that provide improved corrosion resistance and adhesion compared to traditional coatings. The coatings contain specific epoxy resins made from phenol-containing compounds with polycyclic groups. The epoxy resins have segments with polycyclic aromatic structures like naphthalene, anthracene, or phenanthrene. These resins provide better corrosion resistance, adhesion, and blush resistance compared to standard epoxy coatings. The coatings can be applied to metal containers before or after forming to prevent corrosion of the metal from food contents.

Source

Packaging laminate with improved adhesion between aluminum and polyolefin layers for better delamination resistance and corrosion protection. The aluminum carrier layer is treated with silicatization or titanization on the side facing the polyolefin layer. This modified surface improves adhesion between the aluminum and polyolefin when laminated together using an adhesive layer. The treated aluminum surface replaces traditional surface treatments like chromium or epoxy coatings. The silicatization or titanization does not introduce harmful substances and allows using bi-phenol A-free adhesives.

Source

An inner insert for a reusable packaging unit that prevents corrosion of enclosed metallic objects when the packaging is reused multiple times. The insert has a coating that provides corrosion protection for the metallic objects inside. This prevents corrosion of the enclosed objects even when the packaging unit itself is reused and potentially contains residual moisture or other corrosive substances. The coating on the insert provides a barrier against corrosion of the enclosed objects, improving the overall durability and reusability of the packaging unit.

Source

Inner insert for a reusable packaging unit to protect metallic objects from corrosion. The insert has high corrosion protection for each use of the packaging unit. It provides a sealed interior space filled with a volatile corrosion inhibitor (VCI) to prevent metal objects from corroding when stored inside the packaging. The VCI is contained inside the insert to prevent leakage when the packaging is reused. The insert is designed to be stackable, have accurate dimensions, and maximize utilization of the outer packaging to save costs.

Source

Packaging materials for preventing rusting of metallic parts during transportation and storage. The packaging materials have a multi-layered structure with inner and outer layers made of impregnated plastic like PET. The inner layer contains no rust inhibitor, but the outer layers have rust inhibitor particles mixed with the impregnated plastic. This creates a vapor-phase corrosion inhibitor when the packaging is sealed around the metal parts. The rust inhibitor molecules coat the metal surfaces to prevent electron flow and rusting.

Source

Combination of fiber-based material and film for temporary corrosion protection of metals that provides vapor barrier, vapor phase corrosion inhibition, and sulfur absorption. The combination includes a fiber-containing carrier material like textiles and a film with vapor phase corrosion inhibitors and sulfur absorbers. The layers can be bonded together to form a composite. This provides corrosion protection against atmospheric corrosion for metals like iron, copper, silver, and magnesium during storage and transportation. The fiber-film combination prevents water vapor, inhibits electrochemical corrosion, and absorbs sulfur compounds that can cause corrosion.

Source

Multifunctional nanocomposite packaging material that provides corrosion protection, antistatic properties, EMI shielding, antimicrobial activity, oxygen scavenging, hydrogen sulfide absorption, UV absorption, improved food freshness, and barrier properties for packaging metal parts, electronics, and food. The packaging material is made by blending metal powders with film forming polymers, along with other additives like precipitated silica, metal oxides, and conducting polymers. The composite films are prepared using extrusion techniques. The multifunctional packaging can protect against corrosion, microbial attacks, electromagnetic interference, UV radiation, and improve food freshness while potentially reducing oxygen levels and absorbing hydrogen sulfide.

Source

Three-piece resealable can for storing acidic beverages like fruit juices that provides improved corrosion resistance compared to traditional cans. The can has a steel body with a Ni coating, a PET liner, and a Zr-containing film between the body and bottom. The Ni coating promotes weldability and adhesion. The Zr film prevents pitting and enhances corrosion resistance. The steel body and bottom have Sn coatings to protect against acid. The Sn coatings contain alloyed Sn for better adhesion during forming. This balanced use of Ni, Sn, and Zr coatings provides improved corrosion resistance compared to using just Sn or Cr coatings.

Source

A coating composition for packaging containers like food cans that uses a specific polyether polymer to improve corrosion resistance and adhesion. The polymer has segments with structures like 4-hydroxyphenyl and cyclohexane rings. This polymer provides better performance compared to traditional BPA-containing epoxy coatings. The composition can also contain crosslinkers and other components to form a protective coating on metal containers.

Source

Curable coating composition for packaging applications that is free or substantially free of certain crosslinkers like polyisocyanates, aminoplast resins, and phenolic resins. The coating composition contains a latex with reactive functional groups and phosphorus acid. This allows the coating to be applied to metal packaging without the need for traditional crosslinkers like isocyanates. The coating composition can provide corrosion protection and chemical resistance for metal packaging without the use of BPA or other restricted monomers.

Source

A packaging coating for metal containers like aerosol cans that provides improved corrosion resistance to aggressive ingredients like dimethyl ether propellants. The coating composition contains a polyester binder polymer with nitrogen-containing heterocyclic groups containing carbonyl groups. The coating also benefits from washing the container interior before coating to remove residual lubricant. The coating composition can be sprayed on and cured to form a durable, adherent coating.

Source

Vaporizable rust preventive packaging material and manufacturing method for packaging metal products without curling or curing issues. The packaging material has a polyethylene/polypropylene fabric with a layer of rust inhibitor particles bonded to one side using thermoplastic resin. This prevents rust when packing metal items. The material is made by extruding the resin with the rust inhibitor dispersed on one side, then pressing to bond. A device injects the powder into the extruder. This avoids melting/separation issues compared to mixing in pellet form. The thermally bonded rust inhibitor prevents corrosion during packaging while maintaining flexibility, strength, and recyclability.

Source

Belt packaging for corrosion-sensitive metal components that provides corrosion protection during transportation. The packaging uses a molded container with internal cavities filled with a corrosion inhibitor gas. The components are placed inside the container and surrounded by the inhibitor gas. The container is then sealed with a film that also contains the inhibitor. This provides multiple layers of inhibitor protection around the components to prevent corrosion during transit.

Source

Coated steel substrate for packaging applications that provides improved corrosion resistance and adhesion compared to conventional tin plate and electrolytic chromium-coated steel (ECCS). The coated steel contains a chromium-chromium oxide (Cr-CrOx) coating deposited in a single plating step using a specific electrolyte composition. The Cr-CrOx coating can replace tin plate and ECCS for packaging applications without using hexavalent chromium. The coating composition and plating process allow electrodeposition of chromium metal and chromium oxide simultaneously. The coating thickness can be adjusted to balance corrosion protection and adhesion properties.

Source

Coating composition for packaging materials like metal cans that replaces BPA-based epoxy coatings to provide better corrosion resistance, adhesion, and resistance to chemicals like solvents and acids. The coating composition contains a specific type of polyester resin as a film-forming binder. The polyester resin has a unique structure with ester linkages and suspended hydroxyl groups. This polyester resin provides better performance compared to conventional epoxy coatings when used in packaging applications.

Source

A corrosion protection packaging material for metal articles that absorbs volatile corrosion inhibitors and releases them inside the package to prevent rusting. The packaging has an outer barrier layer, an inner transfer layer, and a middle reservoir layer filled with a volatile corrosion inhibitor. The barrier layer has lower permeability than the transfer layer to prevent inhibitor leakage. The transfer layer absorbs the inhibitor and releases it inside the package where it provides long-term corrosion protection. The reservoir layer can be foamed to increase its volume and inhibitor capacity. Foaming the transfer layer is also possible. The layers are coextruded.

Source

Three-piece resealable can for acidic beverages that resists corrosion better than existing cans. The can uses a specific coating configuration on the inner steel sheets. The can body has a steel sheet with Ni plating, a PET film, and a Zr-containing film between the steel and PET. The bottom has Sn plating on the steel, optionally with Ni and Zr-containing films. The Ni and Zr coatings provide adhesion and weldability. The Sn plating prevents corrosion of the steel. The Zr film further improves corrosion resistance. This coating setup allows filling acidic beverages without excessive corrosion.

Source

Coating steel packaging material with a chromium-chromium oxide (Cr-CrOx) layer instead of hexavalent chromium passivation to improve corrosion resistance and adhesion properties without using hexavalent chromium. The Cr-CrOx coating is deposited in a single electroplating step using a chromium compound, chelating agent, conductivity enhancer, depolarizer, surfactant, and pH adjuster. The Cr-CrOx coating prevents excessive tin oxide growth, improves adhesion of organic coatings, and provides corrosion protection without relying on hexavalent chromium.

Source

Liquid coating composition for metal packaging that provides improved properties like adhesion, chemical resistance, flexibility, weatherability and hydrolytic stability without using BPA containing materials. The coating composition is derived from an aliphatic polycarbonate resin made by polymerizing an aliphatic polyol with cycloaliphatic primary polyols like cyclohexane dimethanol and linear polyols like ethylene glycol. This allows synthesizing the resin without BPA precursors. The coating composition is applied to metal substrates to provide corrosion protection for food and beverage packaging without using BPA.

Source

A method for producing a packaging material to prevent corrosion of metal objects without releasing amine compounds. The packaging material contains a plastic film, an adhesive layer, and a corrosion inhibitor. The corrosion inhibitor is formed by reacting an amine component and a carboxylic acid to eliminate water. The water content of the inhibitor is set so that the amine is quantitatively bound in the adhesive during curing or consumed. This prevents amine compounds from being released during packaging and protects the metal objects without causing corrosion.

Source

Method to improve corrosion protection of metal packaging like beer kegs without needing high temperature curing. The method involves coating the interior with a paraffin-based coating, then reheating the coating above its solidification temperature. This fully wets the interior surface and improves corrosion resistance compared to just initial coating. The reheating step can be done after forming the package or in a separate step. The paraffin coating prevents corrosion by providing a barrier between the metal and the contents, and the reheating step ensures complete coverage of the interior surface.

Source

Improved rustproof packaging structure for cylindrical metal parts like pipes and tubes to ensure effective rust prevention during storage. The packaging involves using two protective strips at the ends of the tube and a bag-shaped rustproof film that encloses the tube. The film overlaps and is sealed with a hot pressing machine to create a sealing line. This prevents damage to the film during insertion and ensures complete sealing of the tube. The film has a volatile rust inhibitor on the surface to protect the metal. The sealing line provides high reliability sealing to prevent rust.

Source

Vaporizing corrosion inhibitor packing material for preventing rust in metal objects during transportation and storage. The packing material is a layered structure of films that progressively vaporize to release corrosion inhibitors into the enclosed space. The outer layer is a moisture-barrier film to prevent external moisture. Inside is a polyethylene film containing volatile corrosion inhibitors. This inner film vaporizes and releases the inhibitors into the enclosed space. The layered structure prevents rust by sealing out moisture and supplying vaporized inhibitors to prevent corrosion.

Source

Coating for metallic hollow bodies used in transport packaging that provides chemical and corrosion resistance to fillings and cleaning agents without leaching toxic compounds. The coating is a blend of a phenolic resin and polyarylene ether applied onto the metallic substrate. The coating has high elongation, impact resistance, adhesion, and hydrolytic stability. It also provides resistance to common cleaning agents, sterilization, temperature, steam, and solvents.

Source

A polymer for use in coatings, particularly packaging coatings, that provides improved properties like blush resistance, corrosion resistance, stain resistance, and adhesion compared to conventional coatings. The polymer is a polyether with a specific structure containing cyclohexane rings and aromatic groups. It can be synthesized by reacting compounds with cyclohexane rings and aromatic groups to advance the molecular weight. The polymer can also be made by reacting a compound with a cyclohexane ring and an aromatic group with a diepoxide to form a polyether. The polymer is used in coatings to improve performance when applied to metal substrates like packaging cans.

Source

A packaging film for preventing corrosion of aluminum foil used in cheese packaging. The film has a corrosion protective layer on the side facing the filling to prevent cheese components from corroding the aluminum foil. The protective layer is made of a silicon-based coating that provides effective corrosion protection with good adhesion to the aluminum foil. This eliminates the need for thick paint layers or anodizing that increase cost and weight. The silicon coating blocks cathodic active sites to inhibit corrosion.

Source

Packaging pad with rust inhibition for preventing rust in blood packaging. The pad has a base layer and a rust inhibitor layer attached on top. The rust inhibitor layer has ball-shaped protrusions that match the bottom shape of the blood packs. When placed under the packs, the protrusions insert into the packs and spread rust inhibitor inside to prevent rusting.

Source