668 results about "Stick resin" patented technology

The invention belongs to the technical field of conductive adhesives, and particularly relates to a salt-fog-resistant waterborne conductive adhesive and a preparation method thereof.The salt-fog-resistant waterborne conductive adhesive is mainly prepared from, by weight, 5-10 parts of salt-fog-resistant waterborne polyurethane; 5 to 10 parts of water-based tackifying resin; 30 to 50 parts of conductive silver powder; 10 to 20 parts of ethanol; 2-10 parts of an anti-hydrolysis agent; and 10-30 parts of deionized water. According to the salt-fog-resistant aqueous conductive adhesive, polyurethane resin with polytetrahydrofuran alcohol and polycaprolactone polyol as main structures is used as matrix resin, a system is endowed with excellent water resistance and salt-fog resistance, the salt-fog-resistant aqueous conductive adhesive shows outstanding hydrolysis-resistant stability after being cured, and the salt-fog-resistant aqueous conductive adhesive and the conductive silver powder have a synergistic effect, so that the anti-settling performance is effectively improved.

The invention discloses a power-on viscosity-reducing adhesive composition, a viscosity-reducing adhesive tape and a preparation method of the viscosity-reducing adhesive tape, and relates to the technical field of adhesive materials. The preparation method comprises the following steps: adding polyurethane acrylate and polybutylene adipate into a planetary stirring kettle, stirring, sequentially adding a PEDOT / PSS solution, a nano core-shell material, a dynamic cross-linking agent, hydrogenated rosin tackifying resin, TPU particles and butylated hydroxytoluene, stirring to obtain mixed glue, and carrying out vacuum defoaming to obtain the electrified viscosity-reducing glue composition. Coating a release film with the electrified viscosity-reducing adhesive composition, carrying out UV curing, and attaching the release film on the other side to obtain the electrified viscosity-reducing adhesive tape. The prepared electrified viscosity-reducing adhesive composition and viscosity-reducing adhesive tape have the advantages of being excellent in mechanical property, sensitive in response, remarkable in stripping force difference before and after electrification, stable at high temperature, stable in circulation, resistant to pollution and the like, nondestructive disassembly and reutilization of devices are achieved by regulating and controlling the adhesive force through an electric field, and the electrified viscosity-reducing adhesive composition and viscosity-reducing adhesive tape can be applied to an electric response assembly scene.

The present invention provides an electrolyte-resistant hot melt tape, which comprises a PET substrate and a rubber hot melt adhesive layer coated on its surface. The rubber hot melt adhesive layer comprises the following components in parts by weight: 60-160 parts of styrene-butadiene rubber, 10-40 parts of maleic anhydride-modified polyolefin, 1-5 parts of epoxy curing agent, 10-40 parts of hydroxyl-terminated liquid polybutadiene, 1-5 parts of polyisocyanate curing agent, and 20-60 parts of rosin tackifying resin. The rubber hot melt adhesive layer of the electrolyte-resistant hot melt tape is tightly compounded with the polar PET substrate. At the same time, the moderate cross-linking between the components of the rubber hot melt adhesive layer can reduce the infiltration of the electrolyte, so that the electrolyte-resistant hot melt tape has excellent bonding strength before and after being immersed in the electrolyte, does not bubble or delaminate, improves the passing rate of the battery drop test, meets the requirements of the lithium battery industry for tape products, and improves the battery safety factor.

The invention relates to the technical field of waterproof coiled materials, and provides a macromolecule waterproof coiled material with a hook-and-loop fastener and a preparation method thereof.The macromolecule waterproof coiled material with the hook-and-loop fastener sequentially comprises the hook-and-loop fastener, a macromolecule sheet layer, a blocking layer, an upper gluing waterproof layer, a film-based macromolecule layer, a lower gluing waterproof layer and an anti-sticking layer from top to bottom; the upper adhesive waterproof layer and the lower adhesive waterproof layer are both modified self-adhesive asphalt sizing materials, and the modified self-adhesive asphalt sizing materials comprise asphalt, softening agents, styrene-butadiene-styrene block copolymers, butadiene styrene rubber, butyl rubber, tackifying resin, desulfurized rubber powder, filler and compatilizers. The filler is prepared from the following raw materials: carbon black, silicon dioxide, a silane coupling agent and 5-methylphenol-2-calcium sulfonate; the hook-and-loop fastener is a hook-and-loop fastener, the hook-and-loop fastener comprises a hook-and-loop fastener hook surface layer and a hook-and-loop fastener loop surface layer, and by means of the technical scheme, the problem that in the prior art, the high polymer waterproof roll is low in peel strength is solved.

The present invention relates to the technical field of tackified adhesive films and specifically to a tackified adhesive film. The tackified adhesive film comprises a substrate layer and a UV-tackified adhesive layer applied onto the substrate layer. The UV-tackified adhesive layer is prepared by using a modified polyester resin, which is obtained by the graft polymerization of a hydroxyl-terminated polyester resin, butyl methacrylate, and isocyanatoethyl methacrylate, as a main resin and mixing the main resin with a tackifying resin, a photo-curing agent and the like. The UV-tackified adhesive layer has relatively high cohesive strength and relatively good adhesion to a PET substrate. Before a UV-induced tackification reaction, an initial peel force is not significantly increased with the extension of standing time, so that an adhesive tape can be easily removed without causing damage and contamination such as residual adhesive to an adherend . After the UV-induced tackification reaction, the modified polyester resin can improve the bonding strength between the adhesive tape and the adherend.

The invention provides a thermoplastic hot melt adhesive for bonding cover plates of household appliances and a preparation method of the thermoplastic hot melt adhesive. The thermoplastic hot melt adhesive for bonding cover plates of household appliances comprises the following components in parts by mass: 40-70 parts of a high-polarity thermoplastic elastomer; 5 to 10 parts of a copolymer containing amorphous alpha-olefin; 10 to 50 parts of tackifying resin with a high softening point; 0.5 to 2 parts of an antioxidant; 0.5 to 2 parts of a light stabilizer; 0.2 to 0.5 part of a silane coupling agent; wherein the high-polarity thermoplastic elastomer is at least one of TPU, EAA, TPEE, ACM and PA. The bonding performance is improved through the high-polarity thermoplastic elastomer; the copolymer containing the amorphous alpha-olefin promotes wetting and permeation on the surface of an adhered object, so that the adhesion is improved, and the toughness of the high-temperature-resistant hot melt adhesive is improved; physical cross-linking curing is carried out through temperature reduction, the curing process is not directly influenced by humidity, and the sealing requirement of sizing equipment for water vapor is reduced.

The invention relates to the technical field of high polymer materials, and discloses a high-durability pressure-sensitive adhesive with low VOCs release and a preparation method thereof.The high-durability pressure-sensitive adhesive is prepared from, by weight, 50-80 parts of acrylate copolymer, 0.5-5 parts of cross-linking agent, 10-30 parts of tackifying resin, 1-10 parts of inorganic filler, 0.1-2 parts of antioxidant and 20-50 parts of solvent. Wherein the tackifying resin is at least one of hydrogenated petroleum resin and glycerol ester of rosin, and the inorganic filler is one of nanoscale silicon dioxide and calcium carbonate. Butyl acrylate is used as a main monomer, 2-ethylhexyl acrylate is used as a comonomer, acrylic acid is used as a functional monomer, benzoyl peroxide is used as an initiator, free radical polymerization is carried out at the temperature of 60-85 DEG C under the protection of nitrogen for 4-8 hours, and a copolymer chain with the molecular weight distribution index (PDI) smaller than or equal to 2.5 is formed, so that the viscosity and elasticity of colloid can be balanced; the peeling strength and the weather resistance are improved, and the colloid is prevented from being too soft or embrittled.

The invention relates to the field of high-performance flame-retardant materials and discloses an ultra-light flame-retardant rubber foam material and a preparation method and application thereof.The ultra-light flame-retardant rubber foam material is prepared from modified carboxy nitrile rubber, a foaming agent, a foaming aid, a cross-linking agent, a flame retardant, inorganic filler, tackifying resin and a softening agent; the modified carboxy nitrile rubber is prepared by chemically grafting hexamethylol melamine. According to the invention, a nitrogen-containing structure is introduced into a polymer molecular chain, so that the material has intrinsic flame retardant property, high foaming ratio and light weight are realized, and the problems of density increase and performance degradation caused by high filling of a flame retardant in the traditional technology are avoided. The flame retardant property of the material reaches UL-94 V0 level, and the material is suitable for the fields of building heat preservation, automotive trim, cable sheaths and household appliance shock pads.

The invention relates to the technical field of protective films, in particular to a high-light-transmittance label protective film and a preparation method thereof.A multi-layer protective film formed by compounding a release film layer, an adhesive layer, a PET film and a protective layer is constructed; composite vinyl ester resin constructed by taking epoxy resin and acrylic acid as raw materials is subjected to toughening modification, and then a linear reactive diluent is compounded to construct a high-toughness protective layer which is resistant to high temperature and aging and can be photo-cured; long-chain alkane modified nano silicon dioxide is introduced into the protective coating, nano silicon dioxide is aminated by 3-aminopropyltriethoxysilane, and then 17-carbon monoisocyanate prepared by taking acetone, stearic acid, triphenylphosphine, sodium azide and N-chlorosuccinimide as raw materials is grafted to form the long-chain alkane modified nano silicon dioxide. Vinyl butadiene styrene rubber, composite vinyl ester resin, tackifying resin, a softening agent and a photoinitiator are mixed to prepare the adhesive layer.

The present application relates to the field of adhesives, and particularly discloses a polyurethane hot melt adhesive and a preparation method therefor, and a nursing pad. The polyurethane hot melt adhesive comprises the following raw materials in parts by weight: 20-40 parts of a polyester polyol, 30-60 parts of a polyether polyol, 0.05-0.2 parts of a stabilizer, 10-25 parts of a tackifying resin, 0.01-0.1 part of a catalyst, and 10-30 parts of isocyanate. The preparation method for the polyurethane hot melt adhesive comprises the following steps: preparation of the polyester polyol; mixing: mixing the polyester polyol, the polyether polyol, the stabilizer, and the tackifying resin, heating and stirring the mixture, and keeping the mixture under a vacuum condition for 50-70 minutes; preparation of a product: cooling the mixture to break the vacuum condition, then adding the isocyanate and the catalyst, and further carrying out a reaction under a vacuum condition. The obtained polyurethane hot melt adhesive has excellent thermal stability and tensile strength. The polyurethane hot melt adhesive is used between a water absorption cotton layer and a waterproof layer of the nursing pad, so that the nursing pad has excellent peel strength and hot water washing resistance.

The invention provides self-adhesive modified asphalt, a self-adhesive modified asphalt waterproof coiled material and a preparation method of the self-adhesive modified asphalt waterproof coiled material, and belongs to the technical field of asphalt and waterproof coiled materials. The self-adhesive modified asphalt is prepared from the following components in percentage by weight: 3 to 30 weight percent of matrix asphalt, 20 to 30 weight percent of aromatic hydrocarbon oil, 3 to 5 weight percent of thermoplastic elastomer, 5 to 8 weight percent of rubber modifier, 5 to 10 weight percent of tackifying resin, 3 to 8 weight percent of dioctyl sodium sulfosuccinate, 1 to 3 weight percent of polyaluminum ferric chloride, 1 to 3 weight percent of ferroferric oxide and 0.5 to 1 weight percent of limestone powder, and 10 to 30 wt% of an inorganic filler.

The invention relates to a high-temperature-resistant hot melt adhesive special for bonding PP and PE and application of the high-temperature-resistant hot melt adhesive. According to the hot melt adhesive, through the double-end modification design of the functionalized olefin block copolymer (OBC), polar groups are introduced according to the characteristics of PE and PP chain segments, and the interface bonding strength and high-temperature resistance of PP and PE are remarkably improved through the synergistic effect of auxiliaries such as the chain extender and the tackifying resin. The hot melt adhesive middle layer can be compounded with PP-R and PE-RT pipes through a three-layer co-extrusion process to form a stable multi-layer structure, and the PP-R and PE-RT composite pipe is suitable for a pipeline system in a high-temperature and high-pressure environment.

The invention discloses a waterproof hot melt adhesive film for a TPO waterproof coiled material, a preparation method of the waterproof hot melt adhesive film and the TPO waterproof coiled material, and relates to the field of adhesive films for waterproof coiled materials. The waterproof hot melt adhesive film for the TPO waterproof coiled material comprises the following components in parts by weight: 100 parts of a base material, 0.2-1.0 part of an antioxidant and 0.2-1.0 part of an ultraviolet absorbent, the base material is prepared from 5-10 wt% of resin with an active unsaturated functional group, 25-50 wt% of rubber, 30-50 wt% of tackifying resin and 10-20 wt% of a softening agent, the resin with the active unsaturated functional group adopts at least one of aliphatic polyurethane acrylate with the functionality of 2-3 and vinyl ester resin, and the rubber comprises at least one of SIS (styrene-isoprene-styrene) rubber and SBS (styrene-butadiene-styrene) rubber. The waterproof hot melt adhesive film has heat aging resistance, ultraviolet aging resistance, flexibility and bonding stability, and the service life of the TPO waterproof coiled material is prolonged.

To provide a hot-melt adhesive composition which exhibits a low reactivation temperature, and superior thermal resistance and workability.SOLUTION: The hot-melt adhesive composition comprises: polyolefin component A with a melting point of 120 to 150°C and a melting enthalpy of 60 to 100 J / g; polyolefin component B having a melting point of 80 to 120°C and a melting enthalpy of less than 60 J / g, polymerized by a single-site catalyst; and tackifying resin component C having a softening point in the range of 130 to 150°C.SELECTED DRAWING: None

The invention relates to the technical field of hot-melt pressure-sensitive adhesives, in particular to a hot-melt pressure-sensitive adhesive special for instillation type coating and a preparation method of the hot-melt pressure-sensitive adhesive. The hot-melt pressure-sensitive adhesive is prepared from the following raw materials in parts by mass: 25 to 35 parts of styrene block copolymer, 40 to 50 parts of tackifying resin, 20 to 30 parts of plasticizer and 0.1 to 0.5 part of antioxidant. Wherein the styrene block copolymer is preferably compounded from S-1528, 4411ND and 6241A, the tackifying resin is preferably hydrogenated rosin glyceride with the softening point of 85-90 DEG C, and the plasticizer is medical white oil. The 180-degree peel strength of the prepared product is larger than 5.0 N / 25 mm, the 180-degree viscosity is 2000-6500 cps, the instillation precision can reach + / -8 microns, and the product has excellent adhesive performance and process adaptability and is suitable for instillation type coating scenes.

The invention relates to a hot-melt pressure sensitive adhesive composition comprising at least one styrenic block copolymer, at least one tackifying resin, at least one mineral oil and from 4 to 15% by weight of at least one wax selected from the group consisting of paraffin waxes, Fischer-Tropsch waxes, ethylene-vinyl acetate waxes and any mixture thereof, based on the total weight of the hot-melt pressure sensitive adhesive composition. The invention also relates to an article comprising a surface coated with such a hot-melt pressure sensitive adhesive composition, to a use of such a hot-melt pressure sensitive adhesive composition and to a process for preparing such a hot-melt pressure sensitive adhesive composition.

The invention discloses high-wear-resistance tread rubber for an off-the-road tire, and relates to the technical field of tires. According to the technical scheme, the rubber composition comprises the following components in parts by weight: 100 parts of a rubber component, 35-55 parts of carbon black, 4-6 parts of a wear-resistant agent DC-Z-B, 10-20 parts of white carbon black, 1-2 parts of a silane coupling agent, 1-2 parts of alkylphenol tackifying resin, 8-12 parts of a CR multifunctional composite reinforcing agent TDS, 3-5 parts of an anti-aging agent, 1-2 parts of microcrystalline wax, 3-5 parts of zinc oxide, 1-2 parts of stearic acid, 1.5-2 parts of sulfur and 1.2-2.4 parts of an accelerant. The wear-resistant agent DC-Z-B and CR multifunctional composite reinforcing agent TDS are adopted, through interface optimization, dynamic performance complementation and thermal stability synergy, the wear resistance and tear resistance of the tread rubber can be further improved, and the comprehensive performance improvement of '1 + 1gt, 2' is achieved.

The invention relates to a polyolefin hot melt adhesive, an insulating hot sticking film and a preparation method and application of the insulating hot sticking film, the polyolefin hot melt adhesive comprises the following components in parts by mass: 100 parts of polyolefin, 1-20 parts of tackifying resin, 1-60 parts of flame-retardant filler and 1-15 parts of cross-linking agent, the polyolefin comprises first polyolefin and second polyolefin in a mass ratio of 1: 9-9: 1, the melting point of the first polyolefin is lower than that of the second polyolefin, and the theoretical melting point obtained by proportionally weighting and averaging the melting points of the first polyolefin and the second polyolefin is not lower than 85 DEG C. The invention also provides an insulating hot sticking film used for the surface of the liquid cooling pipe, which comprises a first coating, an insulating film layer, a second coating and a hot melt adhesive layer prepared from the polyolefin hot melt adhesive which are sequentially stacked, and the insulating hot sticking film shows excellent high bonding strength, damp-heat aging resistance, cold and hot impact resistance and salt spray resistance; and the method has a good application prospect in the aspect of power battery liquid cooling.

The invention relates to a halogen-free flame-retardant insulated cable and a preparation method thereof. The halogen-free flame-retardant insulated cable comprises an inner core, a bonding layer coating the inner core and a protective layer coating the bonding layer, the protective layer comprises polyethylene resin, first mineral powder, glass powder, aluminum silicate fibers, a flame retardant, a ceramic forming aid, a binder and a compatilizer; the bonding layer comprises an ethylene-vinyl acetate copolymer, copolyamide, tackifying resin, bismaleimide resin, a thermoplastic polyurethane elastomer, silicon dioxide, second mineral powder, a conditioning agent and an antioxidant. The protective layer provided by the invention can play a role in flame retardance and high temperature resistance under a certain condition; when the temperature is too high, the protective layer can form a new ceramic body under the condition of high temperature, and the outer layer of the cable is coated with the new ceramic body, so that the heat insulation and flame retardant effects on the inner core and the bonding layer in the cable are achieved; meanwhile, under the high-temperature condition, the bonding layer can be heated and softened to bond the newly formed ceramic body, so that the overall mechanical strength of the cable is improved.

The present invention belongs to the field of polyurethane hot melt adhesives, and relates to a carbon dioxide-based reactive polyurethane hot melt adhesive and a preparation method thereof. The carbon dioxide-based reactive polyurethane hot melt adhesive comprises the following components in parts by weight: 10-50 parts of unsaturated carbon dioxide-based polycarbonate polyol, 5-25 parts of polyester polyol, 6-35 parts of polyether polyol, 4-30 parts of polyisocyanate, 5-25 parts of tackifying resin, 0.5-2.5 parts of a first free radical photoinitiator, and 0.1-2 parts of a first catalyst. The carbon dioxide-based reactive polyurethane hot melt adhesive provided by the present invention contains a carbon dioxide-based polycarbonate polyol having a six-membered ring, an amino group, and an unsaturated carbon-carbon double bond. This special structure can not only achieve ultraviolet curing and meet the requirements for rapid positioning in the electronic field, but also improve the adhesion performance and heat and moisture resistance of the polyurethane hot melt adhesive. In addition, the unsaturated carbon dioxide-based polycarbonate polyol uses carbon dioxide as a raw material, which is more environmentally friendly and meets the goal of green development.

The invention discloses a nitrile rubber sealing material as well as a preparation method and application thereof, and relates to the technical field of sealing materials. The nitrile rubber sealing material is prepared from the following raw materials in parts by weight: 100 parts of nitrile rubber, 60-90 parts of carbon black, 15-25 parts of a plasticizer, 3-10 parts of zinc oxide, 1-5 parts of an anti-aging agent, 1-5 parts of tackifying resin, 1-5 parts of paraffin, 1-5 parts of a dispersing agent, 1-5 parts of stearic acid, 1-5 parts of an accelerant and 0.5-2 parts of a vulcanizing agent. The nitrile rubber sealing material prepared by the invention meets the environmental protection requirements of European Union RoHS2.0 and REACH, has excellent processability, has the characteristics of low compression deformation and high rebound resilience, has good oil resistance and aging resistance, and is suitable for producing O-shaped rings for automobile oil seals and the like.

The present application relates to the field of rubber materials, and specifically discloses a high thermal conductivity and low heat generation rubber, a preparation method thereof, and a tire. The high thermal conductivity and low heat generation rubber comprises the following raw materials in parts by weight: 100 parts of natural rubber; 38-51 parts of reinforcing material; 1-3 parts of stearic acid; 1.5-2.5 parts of antioxidant; 1-2 parts of silane coupling agent; 0.5-2 parts of carbon nanotube dispersion material; 1-2 parts of tackifying resin; 1.5-3.0 parts of insoluble sulfur; 0.5-1.2 parts of accelerator; 0.5-1.0 parts of vulcanizing agent; 0.1-0.5 parts of anti-vulcanization reversion agent; 0.1-0.3 parts of anti-scorch agent. The preparation method of the high thermal conductivity and low heat generation rubber comprises a first masterbatch mixing step, a second masterbatch mixing step, and a final mixing step. A tire is made using the above-mentioned high thermal conductivity and low heat generation rubber. The obtained rubber has good thermal conductivity, low compression heat generation, and high tensile strength; the prepared tire has the advantages of high thermal conductivity and low heat generation.

The invention relates to a high-temperature-resistant moisture-cured polyurethane hot melt adhesive as well as a preparation method and application thereof. The preparation raw materials of the high-temperature-resistant moisture-cured polyurethane hot melt adhesive comprise the following components in parts by weight: 20-50 parts of bio-based polyol; 180 to 450 parts of polyether polyol; 200 to 450 parts of polyester polyol; 120 to 200 parts of isocyanate; 80 to 150 parts of tackifying resin; and 0.1 to 0.5 part of a catalyst. The moisture-cured polyurethane hot melt adhesive provided by the invention has good weather resistance after being completely cured, can keep relatively good bonding strength in an environment of 80 DEG C, and has the characteristics of high initial bonding strength, quick positioning, universality in winter and summer and the like.

The invention relates to the technical field of waterproof coatings, and provides a graphene modified non-curing waterproof coating and a preparation method thereof. The graphene modified non-curing waterproof coating comprises thermoplastic rubber, a graphene additive, polyolefin, oxidized polyethlene wax, tackifying resin, a stabilizer, an organic solvent and a filler, and the thermoplastic rubber comprises a styrene-butadiene block copolymer with the model of SBS YH-792E and a styrene-butadiene block copolymer with the model of SAM YH-1901H. According to the technical scheme, the defect that harmful volatile matters exist when asphalt is added into an existing non-curing waterproof coating for construction is overcome, good self-healing property, creep property, adhesion and re-adhesion of the non-asphalt-based graphene modified non-curing waterproof coating are achieved, the non-asphalt-based graphene modified non-curing waterproof coating can be effectively combined with base cracks and micropores, and a water channeling space is closed.

The invention relates to a high-viscosity waterproof foam adhesive tape and a preparation process thereof, and relates to the technical field of foam adhesive tapes, the high-viscosity waterproof foam adhesive tape comprises a release layer I, a water-blocking adhesive layer I, a hydrophobic foam layer, a water-blocking adhesive layer II and a release layer II, the water-blocking adhesive layer I and the water-blocking adhesive layer II are obtained by coating a water-blocking adhesive, and the release layer II is coated with a water-blocking adhesive. The water-blocking adhesive is prepared from the following raw materials in parts by mass: 80 to 100 parts of acrylate copolymer, 10 to 15 parts of hydrophobic modifier, 5 to 10 parts of tackifying resin, 3 to 5 parts of cross-linking agent, 5 to 10 parts of filler A, 1 to 2 parts of antioxidant, 0.5 to 1 part of defoaming agent and 0.5 to 1 part of flatting agent. The preparation process comprises the following steps: coating two surfaces of the hydrophobic foam layer with a water-blocking adhesive, and covering the release layer to obtain the high-viscosity waterproof foam adhesive tape. The foam adhesive tape has the effect of improving the adhesion performance of the foam adhesive tape, and the foam adhesive tape has good waterproof performance and tensile performance.

The invention provides a hot melt adhesive and a preparation method thereof, and relates to the technical field of adhesives. According to the hot melt adhesive, amorphous polyolefin (APAO) is used as a main body, ethylene-vinyl acetate copolymer (EVA) is added as a compatilizer, and Fischer-Tropsch wax is used as a viscosity modifier. The preparation method comprises the following steps: firstly synthesizing a dopamine functional polymer, and then carrying out melt blending on the dopamine functional polymer, APAO, EVA, tackifying resin and other components so as to stably introduce a catechol group into a hot melt adhesive system. When the hot melt adhesive is bonded with a metal surface, the catechol group can form a firm coordinate bond with metal ions, so that the adhesive force is greatly improved. The product provided by the invention has high adhesive force, excellent flexibility, good compatibility and construction performance, and is suitable for bonding and sealing metal materials.

This easily dismantlable adhesive sheet (100) comprises an adhesive layer (10) containing a moisture-cured product of a silyl group-containing resin and a terpene phenolic tackifying resin, wherein the silyl group-containing resin has a polyoxyalkylene structure in a main chain, has, in a portion of the main chain or a side chain, both bonds among a urethane bond and a urea bond or one bond among the urethane bond and the urea bond, and has hydrolyzable silyl groups represented by formula (1) at both ends of the main chain. (In formula (1), X1 and X2 are each independently a hydroxy group or an alkoxy group, R is a C1-C20 alkyl group, and * is a bonding position.)

The present invention relates to the technical field of adhesive materials, and specifically relates to a reusable high shear strength electrical debonding tape, and a preparation method. The tape is prepared using acrylate or olefin monomers, a methoxy polyethylene glycol-containing ester, acrylic acid, salts, functional monomers, an organic solvent, and a tackifying resin. In the electrical debonding tape of the present invention, most electrolytes are bonded to a main adhesive molecular chain through chemical bonds, and some electrolytes are dissociated and complexed by the strong ether-oxygen bonds of methoxy polyethylene glycol, rather than simple physical mixing as in the prior art, thus effectively preventing large-scale precipitation of electrolytes under electrified conditions, and enabling reuse.

The invention discloses a paper-plastic composite reactive polyurethane hot melt adhesive for low-temperature coating, and belongs to the technical field of polyurethane adhesives, the paper-plastic composite reactive polyurethane hot melt adhesive for low-temperature coating comprises the following components by weight: 50-70 parts of modified polyester polyol, 30-50 parts of modified polyether polyol, 15-24 parts of diisocyanate, and 5-30 parts of tackifying resin, 0.1-1 part of a catalyst, 5-35 parts of a filler, 0.05-2 parts of a polymerization inhibitor and 0.1-0.5 part of an antioxidant; the modified polyester polyol is modified poly (butylene succinate); the modified polyether polyol is modified polypropylene glycol; the polyurethane hot melt adhesive prepared by modifying 5-norbornene-2-methylamine with a strong polar bond-NH and 3, 7-dimethyl octyl-6-ene-1-alcohol containing an insect-proof and mildew-proof functional component with polyhydric alcohol has relatively low melting temperature and viscosity, has initial viscous force of more than 1N and final viscous force of more than 5N at the same time, and has the characteristics of high temperature resistance, high temperature resistance, high temperature resistance and the like. The method can be well applied to paper-plastic compounding for low-temperature coating.

Provided are: a hot-melt adhesive composition which contains a large amount of plant-derived components, has excellent adhesive properties, in particular, 180 DEG peel adhesion, constant load retention, and shear retention, and also has high re-peelability; and an adhesive tape which has an adhesive layer that contains the adhesive composition. The hot melt adhesive composition contains at least (A) a styrene block copolymer having a farnesene structure, (B) a thermoplastic resin having a kinematic viscosity (40 DEG C) of 150 mm2 / s to 200 thousand mm2 / s or a number average molecular weight (Mn) of 450 to 4000, and (C) a tackifier resin having a softening point of 100 DEG C or more. The tackifying resin (C) is contained in an amount of 30 to 500 parts by mass per 100 parts by mass of the styrene block copolymer (A).