232 results about "Paint stripper" patented technology

An environmentally-friendly cleaning composition for industrial and consumer applications comprising (a) a blend of dibasic esters, (b) one or more surfactants (c) and, optionally, (d) water or a solvent. The dibasic esters are be derived from a blend of adipic, glutaric, and succinic diacids, and, in one particular embodiment, the blend comprises dialkyl adipate, dialkyl methylglutarate and dialkyl ethylsuccinate, wherein the alkyl groups individually comprise a C₁-C₁₂ hydrocarbon group. The one or more surfactants are typically chosen from alcohol alkoxylate, an alkyl phenol ethoxylate, a terpene, a terpene alkoxylate or any derivates thereof. Optionally, additional components or additives including delaminates such as pinene and d-limonene, fragrances, whiteners, stabilizers, thickeners and the like can be added to the composition. The industrial or consumer application selected from the group consisting of a graffiti cleaner, a painted-substrate cleaner, an ink cleaner, a metal substrate cleaner, a plastic substrate cleaner, an environmentally friendly cleaner, a stain-spot cleaner, an industrial hand cleaner, a resin cleaner, a tar resin cleaner, a textile cleaner, a paint stripper and any combination thereof.

The invention discloses a multifunctional chorine-free and benzene-free compound paint stripper and a production method thereof. The multifunctional chorine-free and benzene-free compound paint stripper is a composition, which is characterized in that: the composition comprises the following components in part by weight: 30 to 60 parts of main solvent, 5 to 30 parts of latent solvent, 5 to 30 parts of solubilizer, 2 to 15 parts of accelerant, 2 to 15 parts of activating agent, 1 to 6 parts of osmotic agent, 0.5 to 2.5 parts of inhibitor, 1 to 8 parts of sealant, and 0.1 to 0.6 parts of thickening agent. The production method comprises the following steps: adding the main solvent in a reaction kettle; adding the latent solvent, the activating agent and the accelerant to the main solvent dropwise with stirring; stirring the mixture until the mixture is dissolved completely; adding the thickening agent and stirring the mixture until the thickening agent is dissolved; adding the thickeningagent to the mixture again and mixing with the solubilizer; and finally, adding the sealant and the inhibitor and stirring the mixture uniformly. The pain stripper in the invention avoids harm to a human body, environmental pollution and causticity, and has a large foaming area, a short paint stripping time, little dosage and high frequency when demoulding. The production method in the inventionis simple in process, less in device investment, rich in raw material resource and low in product cost.

An environmentally-friendly cleaning composition for industrial and consumer applications comprising (a) a blend of dibasic esters, (b) one or more surfactants (c) and, optionally, (d) water or a solvent. The dibasic esters are be derived from a blend of adipic, glutaric, and succinic diacids, and, in one particular embodiment, the blend comprises dialkyl adipate, dialkyl methylglutarate and dialkyl ethylsuccinate, wherein the alkyl groups individually comprise a C₁-C₁₂ hydrocarbon group. The one or more surfactants are typically chosen from alcohol alkoxylate, an alkyl phenol ethoxylate, a terpene, a terpene alkoxylate or any derivates thereof. Optionally, additional components or additives including delaminates such as pinene and d-limonene, fragrances, whiteners, stabilizers, thickeners and the like can be added to the composition. The industrial or consumer application selected from the group consisting of a graffiti cleaner, a painted-substrate cleaner, an ink cleaner, a metal substrate cleaner, a plastic substrate cleaner, an environmentally friendly cleaner, a stain-spot cleaner, an industrial hand cleaner, a resin cleaner, a tar resin cleaner, a textile cleaner, a paint stripper and any combination thereof.

The invention belongs to a paint removing technology and relates to a method for removing paint from an enameled wire and a paint remover. The method comprises the following steps: weighing sodium hydroxide and potassium hydroxide by using a scale or an electronic scale, mixing, pouring the mixture into a nickel crucible and heating, so that the mixture is melted; soaking one end, needing paint removal, of the enameled wire into the paint remover, removing paint, and taking out the enameled wire after the paint-removing reaction stops; soaking one paint-removed end of the enameled wire into clear water, washing for not less than 15 seconds, neutralizing the residual alkaline liquid by using a glacial acetic acid solution and performing subsequent cleaning; and after cleaning, wiping, detecting and storing in the drying environment. The invention is simple in operation, low in cost, can remove paint from polyimide copper enameled wires, polyimide nickel enameled wires, polyester copper enameled wires and polyester nickel enameled wires in a wide temperature range, does not damage the metal materials of the enameled wires, and is very applicable to small-diameter enameled wires which cannot be depainted by a mechanical grinding method.

The invention belongs to the field of environment-friendly paint removers, and discloses an environment-friendly removing agent of a covering paint as well as a preparation method and using method of the environment-friendly removing agent. The environment-friendly removing agent of the covering paint contains the following components in percentage by mass: 5-45% of an alkali compound, 0.5-15% of an inorganic auxiliary agent, 5-30% of an organic auxiliary agent, 0.5-5% of a surfactant, and the balance of water. The environment-friendly removing agent of the covering paint is in the form of a water aqua, is safer and lower in toxicity and VOC (volatile organic compound) compared with the conventional dichloroethane type removing agent, and is safe to operators; the removing time of a preferred plan is only 5 minutes, so that the advantage of an organic solvent removing agent on removing time is not obvious anymore. Compared with an acidic system removing agent, the environment-friendly removing agent does not generate pungent smells, and is safe to a base material to ensure that the base material can not be corroded and generate rusts. Compared with a conventional alkali system removing agent, the environment-friendly removing agent is safer and more efficient.

An electrically conductive surfacing material capable of providing sufficient conductivity for lightning strike protection (LSP) and/or electromagnetic interference (EMI) shielding is disclosed. The conductive surfacing material is a multi-layered structure having a very thin conductive layer (e.g. solid metal foil) and a resin film formed on at least one surface of the conductive layer. The resin film is formed from a curable resin composition containing an epoxy novolac resin, a tri-functional or tetra-functional epoxy resin, ceramic microspheres, a latent amine-based curing agent, particulate inorganic fillers; and a toughening component. Optionally, the resin film further includes conductive additives to increase electrical conductivity of the surfacing material. The resin film exhibits high Tg as well as high resistance to paint stripper solutions. Furthermore, the conductive surfacing material is suitable for co-curing with fiber-reinforced resin composite substrates.

A two-phase paint and ink stripper composition comprises an aqueous phase containing a basic activator in the form of an amino-alkyl-alkanol and an organic phase which contains an alkylene carbonate and organic solvents. The paint stripper composition of the present invention is free from methylene chloride and does not contain monoethanol amine.

The present invention relates to one kind of paint remover and its preparation process and usage. The paint remover consists of organic base 30-55 wt %, organic solvent 40-65wt %, and corrosion inhibitor 0.5-7wt %, and during storage and use, its surface is covered with oil sealer. The organic base is alcohol amine with boiling point not lower than 160deg.c and molecular weight smaller than 200; the organic solvent has point not lower than 200deg.c; the corrosion inhibitor is saccharide; and the oil sealer is vegetable oil or mineral oil with density lower than the paint remover and insoluble in the paint remover. The paint remover has simple preparation process, convenient use and environment friendship, and may be used to remove several kinds of paint film in high speed and no corrosion to most of the substrate.

A paint remover for the polyester paint or polyester imine paint coated copper wire is prepared from formic acid, trichloromethane, mixed cresol and additive through proportionally mixing and stirring.

A preparation and an application of an environmental-protective aqueous paint remover are disclosed. The environmental-protective aqueous paint remover is prepared from following raw materials, by weight, 22-25% of benzyl alcohol, 15-18% of sodium p-toluene sulfonate, 3.0-4.0% of potassium hydroxide, 0.8-1.4% of sodium gluconate, 4-8% of a cosolvent and 45-55% of tap water. The paint remover is prepared by following steps: (1) adding the sodium p-toluene sulfonate, the sodium gluconate, the potassium hydroxide to the tap water to obtain a mixture and stirring the mixture to enable the sodium p-toluene sulfonate, the sodium gluconate and the potassium hydroxide to be completely dissolved; and (2) adding the benzyl alcohol, triethanolamine and ethanol to obtain a mixture and stirring the mixture for dissolving the benzyl alcohol, the triethanolamine and the ethanol to obtain a transparent liquid product with a color from white to yellow. The paint remover is alkaline and is subjected to a paint removing experiment during a use process with a heating temperature being 50-70 DEG C. The environmental-protective aqueous paint remover is advantaged in that: (1) the paint remover is water-soluble and is environmental-protective when being used for replacing a volatile solvent paint remover; (2) the paint remover is free of toxic chemical products; (3) the paint remover is suitable for removing various paints; (4) the paint remover is alkaline and is free of damaging a base material; and (5) the paint remover is not liable to volatilize, can be used repeatedly and is low in comprehensive cost.

The invention relates to a neutral paint stripper which can be widely used in the paint strippers of various primer films. The neutral paint stripper mainly comprises dichloromethane, methanol, ethanolamine, 2-ethoxyethanol, carboxymethyl cellulose, sodium alkyl benzene sulfonate, paraffin wax and water.

The invention relates to a cleaning agent of an alkali finishing coat, which combines an alkali paint removing component and an organic depainting component for use, wherein the weight ratio of a total component comprising the alkali component and water to the organic component is from 9:11 to 12:8; the cleaning agent of the alkali finishing coat is prepared by the following method: (1) mixing sodium hydroxide, sodium carbonate and sodium dodecyl benzene sulfonate and stirring; (2) adding ethanolamine and ethylene glycol monobutyl ether; (3) adding ethanol and mixing evenly; and (4) heating. The invention has the advantages that the cleaning agent has simple formula, convenient preparation and very small toxicity and has a very good paint removing action for a finishing coat mobile telephone casing or similarities taking acrylic acid as a main part, a product with disqualified surface spraying or a residual product can be recycled after being processed, the use rate of resources is enhanced, and the fund and energy resources are saved. The used paint remover can be used for the second time, and the original components of the paint remover can also be replenished for use for many times. No special requirement for the water quality exists, and tap water can also be adopted.

The invention discloses airplane coated paint laser cleaning equipment which comprises a laser device 2 and a cleaning and processing head 3 connected with the laser device 2. A semiconductor pumping solid pulse laser device is adopted, and laser output power is improved by means of electro-optical modulation Q through an MOPA structure; optical fibers are coupled through a hollow cone, long-distance, large-range, long-time and stable cleaning is realized through optical fiber transmission, and no potential safety hazard is caused to an airplane body, so that cleaning cost is greatly lowered, pollution, of a paint stripper, to environment is reduced, and the airplane coated paint laser cleaning equipment can realize automatic control and is low in using cost and high in efficiency.

The invention discloses an alkaline paint remover, which comprises the following parts: 64-96% benzene substituted alkylol, 3.1-31% potassium hydroxide, 0.1-5% surface activator and 0.01-0.1% erosion-proof agent.

The invention relates to a laser removing device for enameled wire cladding layer. The laser output from a laser output head is focused on the cladding layer of the enameled wire through a transmission optical path assembly. The enameled wire is coaxially arranged with the laser output head and the rotary driver. The rotary actuator rotates the transmission optical path assembly about its axis, removing the enameled wire cladding. A laser removing device for enamel wire clad layer adopts an automatic operation mode and utilizes laser to act on that enameled wire clad layer, which overcomes thedefect that the manual contact operation mode is easy to damage the enameled wire body and improves the working efficiency of removing the enameled wire clad layer compared with the sandpaper polishing mode; Compared with paint stripper, it can effectively reduce chemical pollution and personal hazards to operators.

The invention relates to a paint remover, in particular to a paint remover formula, which comprises the following compositions in part by weight: 70 to 80 parts of methylene chloride, 3 to 4 parts of acetone, 1.8 to 2.2 parts of pyridine, 1.8 to 2.2 parts of formic acid, 1.8 to 2.2 parts of ceresin wax, 1.4 to 1.6 parts of cellulose acetate, 1.4 to 1.6 parts of alcohol, 1.4 to 1.6 parts of phosphoric acid and 2 to 3.5 parts of aqueous ammonia; meanwhile, the paint remover formula can also be prepared from the following compositions in part by weight: 80 to 85 parts of methylene chloride, 2 to 3 parts of acetone, 1 to 1.5 parts of pyridine, 2 to 3.5 parts of formic acid, 1.5 to 2 parts of ceresin wax, 1.5 to 2 parts of cellulose acetate, 0.8 to 1 parts of phosphoric acid and 3 to 3.5 parts of aqueous ammonia. The paint remover formula is suitable for removing amino paints, ethylene perchloride paints, epoxy paints on aluminum ware, steel ware and copper ware and the films of spurted plastic ware, and has the advantages of excellent paint removing performance, low material cost, and simple and convenient operation and application.

A surfacing film is formed from a curable resin composition. The resin composition comprises an epoxy novolac resin, a tri-functional or tetra-functional epoxy resin, ceramic microspheres, an amine-based curing agent, particulate inorganic fillers and a toughening component. The surfacing film exhibits high Tg and high cross-linked density after curing, as well as high resistance to paint stripper solutions. The surfacing film is suitable for co-curing with fiber-reinforced resin composite materials. The surfacing film may optionally contain electrically conductive additives to provide sufficient conductivity for lightning strike protection (LSP) or electromagnetic interference (EMI) shielding.

A magnesium-alloy paint remover composition consists of halohydrocarbon 50-90wt%, acid 2-15wt%, alcohol 2-20wt%, liquefied hydrocarbon 0.5-10wt%, emulsifier 0.5-10wt% and corrosion inhibitor 0.1-5wt%. It can remove surface paint film shortly and have no secondary spray.

The invention provides a paint remover. The paint remover is convenient and simple to use and can be used for effectively cleaning various common paint layers; the paint remover has no corrosion damages to a base material and relatively small volatility; when being used, the paint remover has no damages to human bodies; the paint remover does not contain attached matters including paraffin, kerosene and the like, so that the paint layers are conveniently sprayed for the second time; an added inorganic additive, namely a carbon oxide nanotube, can be used for improving the efficiency of wiping the paint layers and any scratch to the base material is not caused; the paint remover is safe and environmentally friendly and does not contain a chlorinated hydrocarbon type organic solvent, and a washing agent has relatively low cost; the paint remover has no corrosion to a metal base material; the paint remover has antibacterial performance and high stability.

A frictional water-based environment-friendly paint layer removing agent is composed of: a main solvent, a co-solvent, an activator, a surfactant, frictional granules, an anti-aging agent, a penetrating agent, a thickening agent, a corrosion inhibitor, deionized water and ethanol. The paint removing agent is convenient and easy to use, can effectively remove various common paint layers and is free of damages, such as corrosion, on a base material, is low in volatility and has no toxicity on human body during use; the layer removing agent is free of attachments, such as paraffin, kerosene and the like, so that secondary spray coating of a paint layer can be conveniently carried out; by adding the frictional granules to the paint layer removing agent, friction force of the paint layer is increased, so that after expansion of the paint layer, artificial paint removal is convenient; the paint layer removing agent has significant effect on a paint layer which is firm and has high adhesion force. The paint layer removing agent is safe and environment-friendly, is free of chlorohydrocarbon-type organic solvents and is low in cost.