46 results about "Shellac" patented technology

The invention discloses an environment-friendly cooling anti-radiation refrigeration coating and a preparation method thereof, and belongs to the technical field of coating preparation. The raw materials are prepared from core materials, auxiliary materials and ingredients. The core material is prepared from a main raw material, hollow glass beads and environment-friendly resin, the auxiliary material is prepared from a nano additive and mineral pigment, and the ingredients are prepared from ferroferric oxide, nano titanium dioxide, diopside and polyvinylidene fluoride. The main raw materials comprise carbon quantum dots, carbon nanofibers, carbon nanospheres and graphene quantum dots; the environment-friendly resin base material is prepared from waterborne polyurethane resin, rosin resin, shellac resin and polytetrafluoroethylene; the nano additive is composed of silicon carbide, carbon black, carbon fibers, magnesium borate and carbon nanotubes. According to the coating, solar energy can be converted into light energy, the sunlight reflectivity of the coating is improved through the unique optical property of the coating, the sunlight reflectivity of the coating can be correspondingly improved along with increase of the sunlight intensity, and therefore the situation that a building absorbs excessive heat is avoided.

The embodiment of the invention relates to the technical field of coating, and discloses a coating composition, a coating method for highlighting wood grains and coated wood. According to the coating composition and the coating method, an effective solution is provided for solving the problems that in the prior art, wood grains are not obvious in appearance, and coatings are high in covering power and prone to discoloration. The shellac or the shellac-based derivative material is selected as the film-forming agent, and the appropriate volatile carrier solution is matched, so that a paint film formed by the coating on the wood surface is transparent and durable, and the service life of the wood surface is prolonged. By means of the detailed coating step, it is ensured that the coating evenly covers the surface of the wood and penetrates into micropores of the wood, the wood texture is more distinct, and the phenomenon that in a traditional technology, the wood grain is fuzzy due to coating accumulation or uneven permeation is avoided. In conclusion, according to the coating composition and the coating method, the ideal effects of attractiveness and practicability are achieved.

The invention relates to the technical field of conductive coatings, and discloses a weather-resistant bio-based conductive coating based on water-based palm wax / shellac and a preparation method thereof, the weather-resistant bio-based conductive coating comprises the following raw materials by mass: 20-30 parts of a natural palm wax nano emulsion, 70-80 parts of a shellac ethanol solution, 1-3 parts of Tween 80, and 30-80 parts of a silver coated copper powder / carbon nanofiber composite material. According to the scheme, the super-hydrophobic barrier is constructed by introducing the water-based palm wax, the moisture absorption rate is reduced, electrochemical corrosion and stress stripping are effectively reduced, and the service life of a base material is prolonged. Meanwhile, lac is added in the scheme, a three-dimensional network structure is formed through crosslinking of the water-based palm wax emulsion and biomass hydroxyl, and the flexibility and moisture resistance of the coating are effectively improved. Specifically, according to the scheme, the water-based palm wax and the shellac are combined and used, so that the weather resistance of the coating is effectively improved, for example, the moisture absorption rate of the coating is reduced to 12% (ASTMD570 standard), and the flexibility of the coating is improved (the elongation at break gt; 50%), the moisture resistance is improved by 3 times (the water vapor permeability lt; 10 g / m < 2 >. Day).

The invention relates to an airplane assembly site shellac paint expiration reminding and detecting device, and belongs to the technical field of airplane assembly detection. The structure part has the functions of supporting components and detecting basic functions, and the problems of glue and paint use in the aviation product assembly process are effectively solved through the functions of automatically identifying the types of glue and paint, detecting the active periods of the glue and the paint in real time and sending out overdue reminding. The device has the advantages of being intelligent in management, easy to operate and maintain and the like, production safety is improved, production efficiency is improved, and development of digitization and intellectualization in the aviation product assembling process is promoted.

The invention discloses a fuel assembly assembling method and belongs to the field of nuclear power. The method comprises the following steps: immersing the zirconium alloy pipe fitting into a shellac resin coating agent dissolved by ethanol, then taking out and drying to form a protective paint film on the surface of the zirconium alloy pipe fitting; and after the fuel assembly is assembled by pulling the rod, the fuel assembly is immersed in a release agent to remove the protective paint film. The method can effectively reduce the risk of damage to the surface coating of the zirconium alloy pipe fitting in the assembling process, and improves the service life and reliability of the fuel assembly.

In one aspect, the disclosure relates to multilayer composite films comprising a first biopolymer such as agarose, and a second biopolymer such as shellac. In the films, one or both layers may further comprise a biodegradable plasticizer. In a further aspect, the films can be flat or can be thermoformed to have a three-dimensional shape. The films are biodegradable and have very low permeability to water, gases, and other contaminants. Also disclosed are methods of making the films and consumer product packaging materials comprising the films.

This invention discloses a method for preparing printing ink for smooth, hard food surfaces, comprising the following steps: preparing a mixed solution of plant protein; mixing it with shellac in anhydrous ethanol, then adding polyol and pigment for dispersion, followed by grinding and filtration to obtain the final product. This invention enables gravure printing on the hard, smooth surfaces of food, exhibiting good adhesion, excellent ink transfer properties, clear and smooth printing, and a certain degree of water resistance. Furthermore, it controls the ink drying speed; black and white inks dry at a moderate speed to avoid cracking and peeling; color inks dry at a moderate speed to avoid clumping. It also allows for overprinting of two or more colors, and the ink has good abrasion resistance, preventing color fading during transportation after packaging.

The invention relates to the technical field of photovoltaic glass, and discloses coated photovoltaic glass and a preparation method thereof.The preparation method comprises the steps that acrylic resin, modified nanometer titania, a fluorine-containing flame retardant, modified cellulose and shellac are added into mixing equipment and mixed, and coating liquid is obtained; and coating the surface of one side of a glass substrate with the prepared coating liquid by using a roller coating method, then carrying out low-temperature curing to form a composite protective layer, and after coating is completed, carrying out cleaning treatment to obtain the coated photovoltaic glass. The coated photovoltaic glass disclosed by the invention has relatively good flame retardance, impact resistance and weather resistance.

In one aspect, the disclosure relates to multilayer composite films comprising a first biopolymer such as agarose, and a second biopolymer such as shellac. In the films, one or both layers may further comprise a biodegradable plasticizer. In a further aspect, the films can be flat or can be thermoformed to have a three-dimensional shape. The films are biodegradable and have very low permeability to water, gases, and other contaminants. Also disclosed are methods of making the films and consumer product packaging materials comprising the films.

The invention relates to an apparatus (10) for intraoral use, in particular an orthodontic apparatus, comprising a substrate (2) and a coating (3) applied to the substrate (2), wherein the coating (3) contains shellac, in particular consists of shellac.

The invention relates to a group mold for preparing a tin foil cover plate for an initiating explosive device and a preparation method, and solves the problem of low preparation production efficiency of a traditional initiating explosive device cover plate. The group mold comprises a tin foil mold, a rubber plate, a hardboard and a bakelite plate. The method comprises the following steps: brushing 15% shellac varnish on the surface of a tin foil with the same size as a tin foil mold, brushing 45% rosin shellac varnish after airing, keeping the shellac varnish in a semi-dry state, paving on the tin foil mold, sequentially placing a rubber plate, a hardboard and a bakelite plate on the tin foil mold, and stacking a plurality of groups of molds together according to the process and the mold sequence, so as to obtain a finished product. And the rubber plate is extruded and deformed to punch the tin foil into 50 holes of the tin foil mold, the tin foil and the mold are taken down after punching is completed, and the tin foil cover plate is prepared. After the tin foil is prepared, the tin foil can be directly pressed into a product through the mold, and the production efficiency and the product quality of initiating explosive devices can be improved.

The invention belongs to the technical field of sealants, and discloses a sealant pasting material as well as a preparation method and an application method thereof. The preparation method comprises the following steps: dissolving shellac in absolute ethyl alcohol to obtain a solution; standing the obtained solution, filtering, heating to a preset temperature, and keeping the solution in a boiling state; and in a stirring state, adding colloidal graphite into the solution in a boiling state, uniformly mixing, and stopping heating after the glue solution begins to be drawn, so as to obtain the sealant paste material, wherein the sealant coating paste material is prepared from the following components in parts by weight: 60 to 70 parts of absolute ethyl alcohol, 20 to 30 parts of shell-lac and 9 to 11 parts of colloidal graphite. According to the technical scheme disclosed by the invention, the efficiency, quality and safety of equipment assembly construction are remarkably improved.

The present invention addresses the problem of improving defects of shellac-containing band seals and providing a band seal having higher strength.　The problem is solved by a band sealing solution for sealing a hard capsule, the band sealing solution comprising a resin, a thickener, and a hydrophilic solvent containing an alcohol having 1 to 4 carbon atoms and water.

1. Name of the Design Product: Integrated Brush Cover (with Felt Sponge). 2. Use of the Design Product: It can not only serve as a cover to protect the product nozzle, but also the felt sponge on the cover top can be used to clean stains such as tree gum, oil film, and shellac on glass. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photo that Best Illustrates the Design Key Points: Perspective View.

The application discloses a shellac coating for pipeline welding and a preparation process thereof, and particularly relates to the field of materials for brazing or welding, wherein, according to proportions, the weight of the matting powder, the glutinous rice powder, the biochar powder and the ethanol is determined to prepare component A; and according to proportions, the weight of the shellac sheet and the ethanol is determined to prepare component B. By constructing a staged response structure with shellac as a matrix, combining a cross-linking gel network and a controllable chelation stripping system, the anti-rust coating has two optional response paths before welding: on the one hand, without using sodium alginate, the coating structure is stable, can directly withstand the high temperature required by welding, and rapidly gasifies above 200 degrees Celsius without leaving residues, thereby eliminating the polishing step; on the other hand, if EDTA solution is sprayed before welding, the calcium ions in the film layer can be selectively chelated, the cross-linking network is destroyed, the whole film layer is slipped or peeled off in an integral block, and the operation mode is adapted to different construction requirements.

There is provided a packaging bag in which the occurrence of blocking is prevented while achieving mono-materialization. A packaging bag includes a bag body 3 formed by overlapping inner surfaces of packaging films 2A and 2B made of a laminated film of one or a same kind of material and bonding peripheral edge portions of the films to each other by heat seal. The packaging films 2A and 2B include a base material layer that forms an outer surface of the bag body 3 and a heat seal layer that forms an inner surface of the bag body 3. The bag body 3 includes a pair of flat portions 4 facing each other and gusset portions 5 and 6 folded inward between the pair of flat portions 4. The gusset portion 6 is formed of the packaging film 2B in which a coating layer containing a resin component selected from cellulose nitrate, polyamide, shellac, epoxy, polyurethane, chlorinated polyolefin, a mixture of silicone and acrylic, or a mixture of silicone and polyamide is provided on an outer surface at least at a position corresponding to the peripheral edge portion.

To provide a method for manufacturing a molded body and structure using shellac which can easily and appropriately manufacture a molded body such as a porous molded body using shellac.SOLUTION: The method for manufacturing a molded body using shellac includes the steps of: mixing metal powder with a shellac solution in which shellac is dissolved in alcohol to obtain a shellac mixture fluid; placing the shellac mixture fluid into a mold; and vaporizing the alcohol in the shellac mixture fluid to obtain a molded body. Porosity is produced by heating at a temperature equal to or higher than the boiling point of alcohol to boil the alcohol, or by heating at a temperature equal to or higher than the heat curing temperature of shellac to perform heat curing in a suspended state.SELECTED DRAWING: None

1. The name of the product of this design: plastic bag (insect attractant). 2. Purpose of the product of this design: Spray insect glue on the outer surface to trap pests. 3. The design key point of this appearance design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the key points of the design: main view. 5. This appearance design product is a thin product, and the left view is omitted; this appearance design product is a thin product, and the right view is omitted; this appearance design product is a thin product, and the top view is omitted; this appearance design product is a thin product, and the bottom view is omitted.

Coatings may convey moisture resistance when deposited upon a base substrate. Coating formulations containing no synthetic polymers may comprise: an aqueous fluid, at least partially neutralized shellac dissolved in the aqueous fluid, and a plurality of wax particles emulsified as solids in the aqueous fluid. Thin-film coatings formed by depositing the coating formulations and removing the aqueous fluid therefrom may be significantly impermeable to water, as determined by the thin-film coating having a moisture vapor transmission rate of at most about 1200 m2 / g, as measured at 38°C and 90% relative humidity by ASTM F1249 or ASTM E96, and / or a Cobb index of at most about 105 m2 / g, as measured over 1800 s by ISO 535, ASTM D3285, or TAPPI T441.

A hydro-generator stator bar protection device convenient to operate comprises a tooth-shaped air bag, the tooth-shaped air bag is composed of a connecting air bag and tooth portion air bags which are vertically connected and communicated with the tooth-shaped air bag, a plurality of tooth portion air bags which are evenly distributed are distributed on the connecting air bag, bar clamping gaps are formed between adjacent tooth portion air bags, the tooth-shaped air bag is filled with gas, and the bar clamping gaps are filled with gas. And the adjacent tooth part air bags clamp the winding bar, so that the shellac varnish can be prevented from flowing to the lower part. The winding bars are contained in the winding bar clamping gaps between the adjacent tooth portion air bags, one tooth-shaped air bag can conduct protection operation on the multiple winding bars at the same time, the winding bars are clamped through air pressure of the air bags, and the protection effect is achieved.

The embodiments of the present application relate to the technical field of coating. Disclosed are a coating composition, a coating method for accentuating wood grain, and a coated wood. The coating composition and coating method provided in the present invention provide an effective solution to the problems in the prior art of the presentation of wood grain being unclear, and the coating having an excessively high hiding power and being prone to discoloration. Shellac or a shellac-based derivative material is selected as a film-forming agent, and is formulated with a suitable volatile carrier solution, thereby ensuring that a paint film formed by a coating on a wood surface is transparent and long-lasting, and prolonging the service life of the wood surface. By means of the detailed coating steps, it is ensured that the coating uniformly covers the wood surface and penetrates deep into fine pores of the wood, such that wood grain is more distinct, and wood grain blurring caused by coating accumulation or uneven coating penetration in conventional processes is prevented. In summary, the coating composition and coating method of the present invention achieve an ideal effect of both aesthetics and practicality.

The present invention provides a method for producing a molded body using shellac whereby it is possible to easily and suitably produce a molded body such as a porous molded body, a molded body serving as a mold for a molded article, or the like by using shellac. The method is characterized in that a molded body serving as a mold for a molded article is obtained as a result of the inclusion of the following steps: a step in which a shellac solution (30) in which shellac is dissolved in alcohol is made to adhere to the periphery of a model (10) of a molded article made from expanded polystyrene or a model (11) of a molded article produced by a 3D printer; a step in which sand or a metal powder (35) is made to adhere as an aggregate to the shellac solution (30) made to adhere to the model of the molded article in the previous step; and a step in which the alcohol portion of the shellac solution (30) is evaporated and the result is cured so as to be reinforced by the sand or metal powder (35).

The invention discloses a shellac coating for pipeline welding and a preparation process of the shellac coating, and particularly relates to the field of materials for brazing or welding. Extinction powder, glutinous rice flour, biochar powder and ethyl alcohol are weighed according to the proportion to prepare a component A; weighing shellac and ethanol according to a ratio to prepare a component B; by constructing a staged response structure which takes shellac as a matrix and combines a cross-linkable gel network and a controllable chelating and stripping system, the anti-rust coating has two optional response paths before welding: on one hand, under the condition that sodium alginate is not used, the coating is stable in structure, can directly bear high temperature required by welding, and is quickly gasified at 200 DEG C or above; residues are not left, and the polishing step is omitted; and on the other hand, if an EDTA solution is sprayed before welding, calcium ions in the film layer can be selectively chelated, a cross-linked network can be destroyed, overall slippage or overall stripping of the film layer is achieved, and operation modes under different construction requirements are adapted.

This invention discloses a method for preparing amphoteric electrodeposition photoresist on a metal surface, specifically including the following steps: Step 1, synthesizing cashew nut shellac monomer; Step 2, preparing an amphoteric resin; Step 3, preparing an electrophoretic coating; Step 4, electrophoretically depositing photoresist on a conductive substrate. This invention also discloses the preparation method and application of amphoteric electrodeposition photoresist on a metal surface. This invention solves the problems of existing photoresists causing complex formation due to strong alkalis, corrosion of metal circuits by strong acids, and swelling of the photoresist film.

Coatings may be used to discourage agglomeration and dust formation when handling seeds. Aqueous emulsions suitable for coating seeds and other substrates may comprise an aqueous fluid, a film-forming polymer that is water-soluble or biodegradable, optionally, a plasticizer, and shellac particles dispersed in solid form in the aqueous fluid. The film-forming polymer is at least partially dissolved in the aqueous fluid. Optionally, the aqueous emulsions may comprise at least one effect pigment, and / or at least one wax, and / or one or more of at least one surfactant, at least one biocide, at least one preservative, at least one second film-forming polymer, at least one crosslinking agent, or any combination thereof.

The present disclosure relates to acid resistant banding solutions for two piece hard capsules, and methods of making the same. The present disclosure also relates, in part, to a method for banding such capsules which provides an acid resistant seal between the capsule parts and achieves an increased acid resistance in vitro. The instant disclosure further relates to a capsule sealing solution formula that comprises shellac ink or shellac ink vehicle component.

The invention relates to the field of adhesive tapes, and provides a high-adhesion residual-adhesive-free insulating battery cell adhesive tape and a preparation method thereof.The adhesive tape sequentially comprises a transparent PET base material layer, an acrylic acid pressure-sensitive adhesive layer, a blue PET base material layer, an acrylic acid pressure-sensitive adhesive layer and a release layer from bottom to top; the acrylic pressure-sensitive adhesive layer is prepared from the following raw materials in parts by weight: 80-100 parts of polyacrylic resin, 1-4 parts of a curing agent, 10-20 parts of modified shellac resin, 4-8 parts of filler, 1-4 parts of an initiator, 0.5-3.5 parts of a coupling agent, 1-3 parts of a dispersing agent and 55-75 parts of a solvent; and the release layer is a PET release layer. The adhesive tape provided by the invention has the characteristics of high adhesion, no adhesive residue, high temperature resistance and good insulation protection effect.

The application relates to the technical field of photovoltaic glass, and discloses a coated photovoltaic glass and a preparation method thereof, wherein acrylic resin, modified nano titanium dioxide, fluorine-containing flame retardant, modified cellulose and shellac are added into a mixing device, mixed, and a coating solution is obtained; the prepared coating solution is coated on the surface of one side of a glass substrate by using a roll coating method, then low-temperature solidification is carried out to form a composite protective layer, and after the coating is completed, cleaning treatment is carried out, so that the coated photovoltaic glass is obtained. The coated photovoltaic glass has good flame retardation, impact resistance and weather resistance.

This invention relates to the field of bioprotective materials technology and discloses a composite insect-repellent and mildew-proof coating liquid. The core antibacterial and insecticidal components are a blend of clove bud essential oil, garlic essential oil, and Australian tea tree essential oil. A composite surfactant is prepared using castor oil polyoxyethylene ether, transparent hydrogenated castor oil, and ethanol, which is then emulsified to obtain a composite essential oil emulsion. This emulsion is then blended with a shellac coating liquid to obtain the coating liquid. Through the synergistic effects of essential oil blending, emulsion stabilization, and shellac film-forming slow release, this invention achieves long-lasting 100% anti-mildew efficacy against Aspergillus niger, Trichoderma viride, and Penicillium citrinum, as well as 100% contact killing effect on mealworm larvae within 2 days. It also features uniform film formation, strong adhesion, long protection period, low essential oil dosage, mild odor, green and residue-free operation, and simple and easily scalable processing. It can be widely used for long-lasting insect and mildew protection in mycelial materials, food storage, agricultural product preservation, and feed storage.

The invention relates to a clay model paint spraying method which comprises the following steps: spraying shellac paint on the surface of a clay model to obtain a clay model sprayed with shellac paint; spraying primer on the surface of the clay model sprayed with shellac paint; and spraying finish paint on the surface of the primer. The shellac varnish is sprayed on the surface of the clay model before the primer is sprayed to serve as a separation layer, the clay and the paint can be effectively isolated, components of the clay cannot be mixed with the paint, the adhesive force of the paint sprayed in the later period can be improved, and the shellac varnish, the primer and the finish paint are cured on the surface of the clay model through chemical reaction in a spraying mode, so that the coating effect is good. The durability of the paint film is better than that of a mode of pasting a colored plastic decorative film, and the technical problem that the durability of the mode of pasting the colored plastic decorative film is poor in the prior art is solved.