37results about How to "Strong initial tack" patented technology

The invention relates to the technical field of bra cup pad, and specifically relates to a vertical cotton breathable bra cup pad with a silica gel net and a preparation method thereof. The vertical cotton breathable bra cup pad comprises a vertical cotton outer layer and a vertical cotton inner layer; a vertical cotton interlayer is arranged between the vertical cotton outer layer and the vertical cotton inner layer; an adhesive layer is arranged between the vertical cotton interlayer and the vertical cotton inner layer; and a silica gel net layer is arranged between the vertical cotton outer layer and the vertical cotton interlayer. The vertical cotton breathable bra cup pad is prepared by a combined technology of hot pressing and cold pressing. The pad is made of vertical cotton, and is light, comfortable, and breathable. A silica gel layer is arranged between vertical cotton layers, the performance of the pad on resisting water washing is enhanced, the anti-collapse effect is good, three-dimensional effect of the cup pad is long-lasting and stable, and the deformation is difficult to happen.

The invention discloses a washable hot melt adhesive and application thereof. The hot melt adhesive is composed of the following raw materials by mass percentage: 30-80% of high-acid value resin; 0-40% of a plasticizer; 10-40% of a thermoplastic high polymer; and 0-1% of an antioxidant. The hot melt adhesive provided by the invention selects high-acid value resin as the tackifier, which contains carboxyl or hydroxyl and other hydrophilic functional groups, and can rapidly react with alkaline water so as to destroy the structure of the hot melt adhesive and lower the stripping force of the hot melt adhesive. The hot melt adhesive is partially dissolved and dispersed into small solid particles so as to completely break away from an adherend, thus being easily removed from the surfaces of PET, PP, PE, glass, ceramics, metals, leather, wood, paper products, plastic products, textile products or others. The washable hot melt adhesive provided by the invention has the bonding performance of conventional hot melt adhesives, and has the advantages of strong initial adhesion, environmental protection and safety, the preparation process is simple, the requirements for the process and equipment are low, the production efficiency is high, and the production cost is low.

Provided is preparation technology for a high-performance solvent copolymerization acrylate pressure-sensitive adhesive. The adhesive comprises the following components, by weight ratio: 65-90% of a soft monomer, 10-30% of a hard monomer, and 3-5% of a crosslinking monomer. The adhesive also comprises a solvent, the weight of which is 10% of the total weight of monomers at an initial reaction stage, is 10-20% of the total weight of monomers at an early stage of a growth stage, is 40-60% of the total weight of monomers at a later stage of the growth stage, and is 138-163% of the total weight of monomers at a final reaction stage, and an initiator, the weight of which is 0.03-0.5% of the total weight of monomers. According to the invention, the copolymerization acrylate is high in average molecular weight and wide in molecular weight distribution. The molecular weight of the copolymerization acrylate can be measured through gel permeation chromatography, and has a weight-average molecular weight in a range of 450-900 kg/mol and a molecular weight distribution index in a range of 4-20.

the invention discloses an environmental-protective oil soluble adhesive and preparing method, which comprises the following parts: 20-40% Z-EMA, 30-75% EAM, 1-20% vinyl acetate (VAC), 1-15% BA, 0.5-15% AA and 0.05-5% EMA, wherein the raw materials are blended with initiator (BOP) to form the product, which satisfies the request of ROHS.

The invention provides an emulsion pressure-sensitive adhesive for protecting an adhesive tape and a preparation method thereof. The emulsion pressure-sensitive adhesive is prepared from butyl acrylate, 2-ethylhexyl acrylate, methyl methacrylate, styrene, crylic acid, hydroxy-propyl acrylate, an initiator, a buffer agent and an emulsifier in a polymerization manner. The preparation method of the emulsion pressure-sensitive adhesive comprises the following steps: a) selecting a synthetic material; b) preparing pre-emulsion; c) performing polymerizing emulsion; d) detecting a product. The invention discloses the emulsion pressure-sensitive adhesive for protecting the adhesive tape and the preparation method thereof. The emulsion pressure-sensitive adhesive is advanced in preparation technology, and simple in preparation process; the prepared emulsion pressure-sensitive adhesive not only has strong initial tension and high peel strength, but also has good high-temperature, high-humidity and aging resistance, and high application value.

The invention discloses a hot-melt pressure-sensitive adhesive used for sealing a brown paper/bubble bag and a preparation method thereof, which belong to the field of chemical industry. The invention relates to the hot-melt pressure-sensitive adhesive, which solves the problems of low adhesive property and poor weatherability of the hot-melt pressure-sensitive adhesive used for sealing the brown paper/bubble bag. The hot-melt pressure-sensitive adhesive used for sealing the brown paper/bubble bag comprises the following components in parts by weight: 20-30 parts of a SIS thermoplastic elastomer, 5-10 parts of a SBS thermoplastic elastomer, 15-25 parts of naphthenic oil, 5-8 parts of polyisobutene, 40-55 parts of tackifying resin and 0.1-1 part of an anti-oxidant. The method has the advantages of simple process and easy operation, and the product has the advantages of strong bonding force, good initial adhesion, good weatherability and good stability.

The invention provides a rubber-system pressure-sensitive adhesive applied to a PVC (polyvinyl chloride) film as well as a preparation method and an application of the pressure-sensitive adhesive. The rubber-system pressure-sensitive adhesive is mainly prepared from a block copolymer thermoplastic elastomer, a plasticizer, tackifying resin, pure C9 monomer resin and an antioxidant in specific parts by mass. The rubber-system pressure-sensitive adhesive can be applied at 150-160 DEG C, has good anti-plasticizer performance and high initial adhesion and is particularly applicable to preparation of flexible electrical insulation PVC tapes. The preparation method of the rubber-system pressure-sensitive adhesive is simple in process, high in production efficiency and applicable to mass production.

The invention discloses a UV polymerization type body foamed damping material. The UV polymerization type body foamed damping material comprises components in parts by weight as follows: 20-30 parts of an acrylate copolymer, 70-75 parts of a reactive diluent, 0.5-0.8 parts of a photoinitiator and 1-5 parts of hollow inorganic nanoparticles. The high-performance damping material is prepared through UV polymerization, and a solvent-free and pollution-free product is realized thoroughly. The hollow inorganic nanoparticles are taken as an inorganic body foaming agent, the product density can be controlled precisely according to requirements through control of adding amount of the hollow inorganic nanoparticles, and the loss factor of the product can be controlled and increased. The damping material has the advantages of excellent initial adhesion, persistent adhesion, peel strength, interfacial wettability and high loss factor.

The invention discloses a high-performance hot-melt pressure-sensitive adhesive. The high-performance hot-melt pressure-sensitive adhesive comprises thermoplastic styrene-butadiene rubber, a tackifier, a plasticizer, a filler, an antioxidant and a coupling agent, wherein the tackifier is rosin modified phenolic resin; the plasticizer is di(2-ethyl hexyl) phthalate; the filler is quartz powder; the antioxidant is bis(3,5- tert-butyl-4-hydroxyl phenyl) thioether; and the coupling agent is aminopropyl triethoxy silane. The product is prepared by adopting five additives including the hermoplastic styrene-butadiene rubber, the tackifier, the plasticizer, the filler, the antioxidant and the coupling agent; and the prepared adhesive composition has characteristics of good stickiness, strong initial stickiness, environmental friendliness, high safety, high production efficiency and low production cost.

The invention relates to an environment-friendly degradable plant solid glue stick which comprises the following components in percentage by weight: 30-60% of deionized water; 10 to 25% of hydroxypropyl starch ether; 5 to 10% of oligosaccharide; 17 to 40 percent of 28 percent polyvinylpyrrolidone; 4-10% of glycerin; 3-10% of stearic acid; 0.4 to 2.5 percent of sodium hydroxide; 0.1-1% of a preservative; and 0.1%-0.5% of a defoaming agent. Fatty acid salt is used as an excipient, glycerin is used as a humectant, raw materials are easy to obtain, the production cost is low, biodegradable plant starch hydroxypropyl starch ether and oligosaccharide are used as adhesives, the prepared solid glue stick has the original characteristics of a common solid glue stick, and the solid glue stick is easy and convenient to use, high in initial stickiness, large in bonding strength, good in adhesive force and capable of being used for a long time. The paint has the advantages of high drying speed, long adhesion time, no cracking, no shedding, safety, environmental protection and no harm to human bodies, is a novel environment-friendly product, accords with novel European and American stringent environmental protection laws and regulations, improves the competitiveness of the product, and undertakes the social responsibility of environmental protection.

The invention provides a quick-stick water-resistant adhesive for low-temperature production of a corrugated board. The quick-stick water-resistant adhesive is characterized in that water, a filler, polyvinyl alcohol, emulsified silicone oil, aluminum potassium sulfate, a cross-linking agent, a TL water-resistant agent, Kathon and sodium hexametaphosphate react according to a certain ratio, a certain process and requirements to form the quick-stick water-resistant adhesive. A cross-linking reaction between polyvinyl alcohol and the cross-linking agent is mainly adopted to generate certain initial adhesiveness and water resistance; then the TL water-resistant agent is added to further improve the water resistance of the adhesive, and different water-resistant requirements can be satisfied according to consumption; and the filler can improve the solid content of the adhesive and reduce the moisture content of the adhesive, so that the drying speed of the adhesive can be improved during production. The quick-stick water-resistant adhesive has the advantages of wide applicability, strong initial adhesiveness, low cost, excellent water resistance and the like, and meets the demand for low-temperature production of a corrugated board production line.

The invention relates to the technical field of water-based adhesives, and concretely relates to a water-based adhesive for deep embossed paper-plastic compounding, and a preparation method thereof. The preparation method of the water-based adhesive comprises the following steps: preparing a monomer drop-by-drop addition solution from, by weight, 20-33 parts of deionized water, 0.4-1.5 parts of areactive emulsifier, 40-50 parts of an acrylate monomer mixture, 5-15 parts of a long carbon chain acrylate monomer, 2-8 parts of hydroxyethyl acryloyl urea and 0.2-0.6 part of an initiator; preparinga kettle bottom solution from 30-42 parts of deionized water, 0.1-0.5 part of the reactive emulsifier and 0.1-0.2 part of the initiator; and dropwise adding a part of the monomer drop-by-drop addition solution to the kettle bottom solution to prepare a seed emulsion, then dropwise adding the remaining monomer drop-by-drop addition solution, and carrying out a reaction under specific process conditions to prepare the water-based adhesive. The water-based adhesive can be stored at a high temperature of 50 DEG C and a high relative humidity of 85% for 120 h without generating white spots, foaming or degumming after being applied to paper-plastic compounding and deep embossing.

The invention discloses a goods stack thin film curtain sealing oxygen-concentration reduction method. The goods stack thin film curtain sealing oxygen-concentration method comprises the following steps that step 1, thin films are cut according to the size of goods stacks, and the thin films are made into an upper curtain with a lower opening and a lower curtain with an upper opening through sealants; step 2, the lower curtain is placed on the ground, and then trays and the goods stacks on the trays are placed in the lower curtain; step 3, the upper curtain covers the goods stacks, and deoxidizing agents are put according to the volume ratio of the goods stacks; and step four, an opening of the upper curtain and an opening of the lower curtain are in smooth butt joint and then sealed through the sealants, and operation is completed. The sealing effect is safer in the operation process of film curtain glue sealing, the risks of poor sealing such as film wrinkle coking, micropore scalding and leaking and repeated heat sealing caused by other factors are reduced, and the oxygen-concentration reduction effect of the film curtain is guaranteed.

The invention discloses a foam body with a thermal self-expansion function and a preparation method thereof. The inner layer of the foam body with the thermal self-expansion function is rigid foam, and the outer layer is thermal self-expanding resin. The thermal self-expanding resin and the rigid foam are integrally formed, interface bubbles are fewer, the binding force is stronger, and uniformlyimproving the strength of products is facilitated. Meanwhile, the integrally formed foam structure has an effect suitable for forming shaped products. The foam body with the thermal self-expansion function is used for the preparation of sandwich composite structural parts, has excellent properties such as high strength, light weight, good interlayer adhesion, resistance to delamination and splitting and impact resistance, and can be applied to the field of sandwich structure composite parts of complex structures.

The invention relates to a heat-conducting photoresist which is prepared by adding a submicron heat-conducting filler into a resin photoresist sensitive to ultraviolet light. The heat-conducting filler does not need to be pretreated, and can be directly and uniformly mixed and dispersed with resin photoresist according to a set mass ratio. The heat-conducting photoresist is applied between LED pixel points on a display device. The heat-conducting photoresist is beneficial to improving the heat dissipation effect of the display device, thereby improving the performance and prolonging the service life of the display device.

The invention provides a novel waterborne environment-friendly leather carving plate binder. The binder is characterized by comprising, by weight, 50-150 parts of VAE emulsion, 10-40 parts of rosin resin solution, 0.01-0.1 part of preservative, 0.1-1 part of dispersant and 0.1-0.5 part of defoamer. A preparation method of the binder includes steps: adding the dispersant and the defoamer into the VAE emulsion in a reaction kettle; stirring while slowly adding the rosin resin solution and light calcium carbonate; adding the preservative, stirring for 30-45min, and discharging to obtain the binder. The binder has the advantages of being formaldehyde-free and low-VOC and is safe and environment-friendly.