313 results about "Softening point" patented technology

The invention discloses copper-containing slurry suitable for high-temperature sintering and a preparation method thereof, and the copper-containing slurry comprises the following components in percentage by mass: 10-80% of copper powder, 0-80% of silver powder, 0.2-1% of low-softening-point glass powder, 0-3% of high-softening-point glass, 15-20% of an organic carrier and 0.5-3% of an organic auxiliary agent, the low-softening-point glass powder is of a Pb-Te-Li system, the softening temperature ranges from 250 DEG C to 350 DEG C, and the softening temperature is lower than the decomposition temperature of the organic coating agent on the surface of the copper powder. The preparation method comprises the following steps: adding the components according to the ratio, stirring until the components are uniformly dispersed, grinding and sieving to obtain the copper-containing slurry suitable for high-temperature sintering. According to the prepared copper-containing slurry, the low-softening-point glass powder is adopted as a key component, a liquid-phase protection layer is formed in the high-temperature sintering process, oxidation and diffusion of copper are effectively inhibited, and the oxidation resistance and the conductive stability of the copper-containing slurry are improved. Meanwhile, the slurry has good flowability and printing performance, and can meet the requirements of the photovoltaic industry for efficient and low-cost conductive materials.

The invention relates to the technical field of optical element machining, in particular to an HUD free-form surface mirror machining method which comprises the following steps of S1, substrate selection and cutting, S2, edge treatment, S3, first-stage hot bending forming, S4, second-stage hot bending forming and S5, grinding. According to the machining method disclosed by the invention, through cooperative use of the first-stage hot bending forming and the second-stage hot bending forming, machining operation of the free-form surface mirror with the large size, the large curvature and the small thickness can be achieved; meanwhile, through the two-stage hot bending forming process, primary forming is conducted through first-stage hot bending forming, pressure maintaining is conducted near a softening point through second-stage hot bending forming, the glass is evenly heated and stressed, residual stress is effectively released, the surface type is promoted to present an ideal gradual change trend, edge distortion is greatly reduced, and the high-precision surface type of the final curved mirror is ensured.

The invention provides a prebaked anode with high compressive strength. The prebaked anode comprises the following raw materials: 68-85 parts by mass of calcined petroleum coke particles; 12-25 parts by mass of a modified coal pitch binder, wherein the softening point of the modified coal pitch binder is 105-115 DEG C; and 0.3-0.8 part by mass of a whisker reinforcing agent. The production process comprises the following steps: calcining, crushing and grading, modifying fine powder, preparing a binder, mixing and kneading, forming and roasting. The prebaked anode has the advantages that through multi-stage material collaboration and process innovation, under the condition that an existing production line is not changed at all, the core contradictions that the prebaked anode is insufficient in strength, poor in conductivity and poor in high-temperature stability are synchronously solved.

The invention relates to an electronic component material technology, and aims to provide an LTCC (Low Temperature Co-Fired Ceramic) material with low dielectric constant and low dielectric loss and a preparation method thereof. The LTCC material is prepared from zinc borosilicate glass and zinc borosilicate microcrystalline glass with different softening point ranges, a ceramic filler, silicate and a metal oxide through ball milling, mixing, modeling and sintering, and the material contains Zn2SiO4 with a devitrified phase. According to the invention, two kinds of zinc borosilicate glass with different softening points are adopted as cooling assistants, and a devitrified phase Zn2SiO4 is generated through reaction in the sintering process, so that the problem of large dielectric loss of a composite system caused by more glass phases can be effectively improved; by flexibly regulating and controlling the content of each component and the components of the auxiliary materials, the sintering characteristics of the glass internal component regulation and control material are optimized, and the success rate of matching and co-firing of the material and silver is further improved; meanwhile, the sintering window is relatively wide, so that good quality stability of the product is favorably kept; the dielectric loss of the composite system is reduced by doping the nucleating agent, and the volume shrinkage process of the material is regulated and controlled.

The invention provides a preparation method of chlorinated paraffin 70 with a high softening point, and belongs to the technical field of chlorinated paraffins.The preparation method comprises the steps that S1, mixed wax is provided, and raw materials of the mixed wax are Fischer-Tropsch wax and petrochemical wax; s2, feeding the mixed wax into a reactor, then turning on an ultraviolet lamp in the reactor for irradiation, after liquid chlorine is gasified to form chlorine, feeding chlorine into the reactor, heating and carrying out segmented control reaction; s3, after the reaction is finished, blowing air into the reactor, then washing a reaction product with water, and then adding a compound stabilizer into a crude product obtained by washing with water, so as to obtain chlorinated paraffin 70; the chlorine content of the chlorinated paraffin 70 is not less than 69.5%, the softening point is not less than 98 DEG C, and the acid value is not more than 0.1 mgKOH / g. According to the method, hot chlorination and photo-initiation are combined, so that the chlorine content and the softening point of the product are controllable, the production efficiency is high, the reaction speed is high, the reaction temperature is reduced, the production period is shortened, and the product quality is stable.

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.

To provide a busbar electric wire that allows insulation to be maintained for a certain period of time or longer even under high-temperature conditions and enables reduction of breakage risk during forming processing while retaining manufacturability.SOLUTION: A busbar electric wire 1 includes: a metal busbar 10 formed in a flat shape from pure copper; and an insulator 20 covering the metal busbar 10. The insulator 20 has: a silicone resin 21 serving as a main component; and a fire-resistant filler 22 composed of a substance having a second softening point higher than a first softening point, the first softening point being a softening point of the silicone resin 21. The tear-strength / density is 11.5 kN cm3 / m g or more and 23.0 kN cm3 / m g or less, and a residual amount after combustion in heating exceeding the first softening point and below the second softening point is 36 wt.% or more relative to before combustion.SELECTED DRAWING: Figure 2

The invention relates to the field of adhesive preparation, in particular to a preparation method of modified C5 petroleum resin and application of the modified C5 petroleum resin in a hot melt adhesive. According to the method, high-quality synthesis of the C5 petroleum resin under mild conditions is realized by adopting the eutectic solvent catalyst containing AlCl3, so that the softening point of the synthesized petroleum resin is relatively high, and the chromaticity is relatively low; by combining the use of an isoamylene / maleic anhydride combined modifier system, the performance of the C5 resin can be comprehensively improved, and the C5 resin can be more easily matched with the requirements of application scenes, especially the application in hot melt adhesives.

The invention discloses a method for improving molecular weight uniformity of polycarbosilane, and relates to the field of materials and chemical engineering. A packed distillation tower is additionally arranged in a polycarbosilane (PCS) reaction kettle, low-boiling-point small molecules in the reaction kettle in the synthesis process are distilled and separated out through the packed distillation tower, precise separation of the small molecules is achieved in combination with three-stage heating and a corresponding distillation mode, and the low-medium-boiling-point small molecules are removed in real time through rectification separation. The content of low-boiling-point components easily causing molecular weight fluctuation in the PCS is reduced, the randomness of the softening point of the PCS product is remarkably reduced, and the quality stability of the PCS is improved. And the temperature uniformity is improved, a reaction kettle with a larger volume is adapted, the problems of random molecular weight distribution, unstable softening point and the like of the existing PCS are effectively solved, and a reliable process is provided for preparing the high-quality PCS.

The invention discloses cationic polymerization modified pure monomer resin and a preparation method and application thereof.The preparation method of the cationic polymerization modified pure monomer resin adopts a micro-flow field technology and comprises the following steps that a mixed monomer phase and a catalytic solvent phase are prepared and then pumped into a reactor according to the proportion for a reaction; a material receiving container is connected in series behind the reactor and is used for centralized post-treatment of cached materials, and a high-performance modified pure monomer resin product is obtained through a series of post-treatment. The modified pure monomer resin is prepared by using a micro-flow field technology cationic polymerization method, so that the reaction safety is improved, the reaction time is greatly shortened, the production efficiency is improved, meanwhile, the molecular weight distribution of the resin can be reduced, the softening point range is accurately controlled, the product batch is stable, the occupied area of equipment is small, the construction cost is saved, and the workshop utilization rate is improved.

The invention provides an asphalt material softening point prediction modeling method based on an infrared spectrum, and belongs to the technical field of road engineering material performance prediction. The method comprises the following steps: collecting infrared spectrum data of a multi-source asphalt sample and carrying out standardization pretreatment; fusing and extracting functional group quantitative features, wavelet multi-scale features and principal component dimension reduction features; constructing a high-stability feature subset by adopting a progressive feature optimization strategy guided by a physical mechanism; a self-adaptive Stacking fusion model is constructed and trained, the model integrates four base learners including PLSR, SVR, random forest and gradient boosting regression, and Bayesian ridge regression is used as a meta-learner to realize uncertainty quantification of a prediction result. The method can quickly output the predicted value of the softening point without a physical test, solves the technical problems of low efficiency and poor consistency of a traditional method, and is suitable for production quality control, on-site quick detection and formula optimization of asphalt materials.

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).

The present application relates to a capillary array, its manufacturing method, and use. The capillary array includes a plurality of parallel-axially arranged capillaries made of a first glass, each of which has an inner wall provided with a low-refractive-index layer whose refractive index is lower than that of a liquid scintillator, and a light-absorbing layer made of a second glass between any two adjacent capillaries. The capillary array includes a capillary region in which T1 - T2 is 30 to 50°C, where T1 is the softening point of the first glass and T2 is the softening point of the second glass, and the thermal expansion coefficient of the first glass is α1. The capillary region is made of a third glass, which is disposed outside the capillary region and in contact with the outer surface of the capillary region, and has a softening point of T3, where T2 - T3 is 50 to 100°C, and the thermal expansion coefficient of the third glass is α3, where α1 - α3 is 2×10. -7 ~10×10 -7 / °C. The technical problem to be solved by the present application is to manufacture a capillary array such that a liquid scintillator optical fiber panel manufactured using the capillary array has high spatial resolution, high hole diameter uniformity, high numerical aperture, and high coupling efficiency, and the manufacturing process is simple.

The invention discloses a method, system and equipment for optimizing the temperature of a hot bending station mold and a storage medium, belongs to the technical field of glass hot bending forming, and solves the technical problem that the temperature optimization efficiency of the station mold is low. The method comprises the following steps: step 1, constructing a calculation model for calculating the mold temperature of each work station; step 2, inputting the comprehensive coefficient K of each work station mold and the work station beat CT into a calculation model; step 3, inputting the temperature set value of each work station mold into the calculation model to obtain the predicted temperature reached by each work station mold; 4, judging whether the predicted temperature of the last station of the preheating work station reaches the softening point temperature of the glass or not; 5, if not, adjusting the temperature set value of the previous preheating work station, and executing the step 3; otherwise, executing the step 6; and step 6, outputting the optimized temperature set value of each work station mold. The temperature of the work station mold can be automatically calculated and evaluated only by setting the temperature and the CT of each work station, the efficiency of parameter optimization is greatly improved, and the method is visual, rapid and accurate.

The invention discloses an expansion insulating sheet which comprises a base material and two expansion bonding layers arranged on the two sides of the base material respectively. The expansion bonding layer comprises epoxy resin with the softening point being 40 DEG C or above, a temperature-sensitive foaming agent, a curing agent, an accelerant, cellulose resin and thermoplastic resin. According to the prepared expansion insulating sheet, the bending resistance of the expansion bonding layer can be remarkably improved, and breakage caused by bending of the expansion bonding layer is avoided; in addition, the adhesiveness of the expansion bonding layers to the base material can be remarkably improved, floating of the bonding layers is avoided in the cutting process, and meanwhile stripping of the expansion bonding layers and the base material caused by mutual bonding of the expansion bonding layers in the storage process is avoided.

The present subject matter relates to a method of creating layers of interconnected or contiguous material using a heated powdered composition comprising base particles and a barrier material, and applying a reducing agent to the powdered composition. The heated powdered composition can be maintained at a temperature above its melting or softening point, and the barrier material prevents coalescence between the particles until the reducing agent is applied.

A toner including a toner particle containing a binder resin containing an amorphous polyester A and a crystalline polyester C, and a wax, and a silica fine particle, wherein the content of the crystalline polyester C is within a specific range, the softening point of the amorphous polyester A satisfies a specific relationship, and in an X-ray diffraction spectrum under a specific temperature condition for the toner, there is a peak corresponding to the crystalline polyester C, a wax index AW1 and a crystalline polyester index AC1 of the toner satisfy a specific relationship, the silica fine particle contains a silica fine particle A having a maximum diameter of primary particle in a specific range, and the average coverages of the surface of the toner before and after the toner is treated with hexane with the silica fine particle A satisfy a specific relationship.

This invention discloses a production process for sulfur dioxide-resistant electroplated aluminum and the resulting electroplated aluminum, relating to the field of electroplated aluminum. The production process for sulfur dioxide-resistant electroplated aluminum includes: coating a release coating onto a base film layer to obtain a release layer; coating an imaging coating onto the release layer to obtain a color layer; molding and aluminum plating the color layer to obtain an aluminum-plated layer; and coating the aluminum-plated layer with an adhesive to obtain electroplated aluminum. The imaging coating comprises the following raw materials in parts by weight: 80-100 parts of modified monomeric acrylic polymer, 7-10 parts of isocyanate curing agent, 3-6 parts of highly branched semi-crosslinked polyurethane prepolymer, 0.8-1.5 parts of dispersant, 0.2-0.5 parts of defoamer, 35-50 parts of methyl ethyl ketone (MEK), and 35-50 parts of pentamidine ketone (PHK). The highly branched semi-crosslinked polyurethane prepolymer has a molecular weight of 110,000-120,000 and a softening point temperature of 220-240°C. This application provides electroplated aluminum resistant to sulfur dioxide corrosion.

This invention belongs to the field of glass technology and relates to a high-temperature resistant structural glass material, its preparation method, and its applications. The glass is composed of the following components by mass percentage: 60%-70% silicon dioxide, 5.5%-11% boric acid, 0.1%-5% aluminum hydroxide, 0%-3% potassium nitrate, 5.5%-13% potassium carbonate, 0%-12% sodium carbonate, 0.1%-4% calcium carbonate, 0%-2% calcium fluoride, 0%-1% lithium carbonate, 0%-2% basic magnesium carbonate, 0.1%-1% titanium dioxide, 0%-2% zirconium dioxide, and 0%-1% cerium dioxide; the total mass percentage of potassium nitrate, potassium carbonate, sodium carbonate, and lithium carbonate does not exceed 22%. This structural glass possesses a high softening temperature, a suitable coefficient of thermal expansion, high-temperature resistance, thermal shock resistance, and processing performance, making it suitable as a structural material for optoelectronic devices.

The invention provides a hot-pressing strippable coating composition with a Fresnel lens effect. The hot-pressing strippable coating composition comprises the following components in parts by weight: 20-50 parts of polyurethane resin with active groups; 2-6 parts of solid acrylic resin; 1-3 parts of cellulose ester resin; 1-5 parts of a latent curing agent; 0-0.3 part of an auxiliary agent; 40 to 60 parts of a solvent; wherein the glass transition temperature (Tg) of the polyurethane resin with the active groups is 25 to 50 DEG C. The method has the beneficial effects that the system provided by the invention is high in practicability, simple and easy to operate. And the introduced low-Tg (25-50 DEG C) polyurethane resin with active groups can easily reach a softening point during hot pressing, has excellent flowability, can well fill a fine grating of a Fresnel lens, and has a full replication effect. The polyurethane resin is matched with a latent curing agent and is stable at normal temperature; and when the hot-pressing temperature threshold value is reached, a cross-linking reaction is initiated. The mechanism improves the temperature-resistant effect of the system, and solves the problems that low-Tg resin is easy to stick and reverse light in the later period.

Provided is a novel curable organopolysiloxane composition and the like that can be used in the production of semiconductor components and the like. A curable organopolysiloxane composition comprising: (A1) an organopolysiloxane having no curable functional group having an aliphatic unsaturated bond within the molecule, and containing at least 20 mol% or more of siloxane units represented by SiO 4 / 2 (A1-1) in the total siloxane units; (A2) an organopolysiloxane having at least one monovalent hydrocarbon group having an aliphatic unsaturated bond in one molecule; (B) an organohydrogenpolysiloxane containing at least two silicon-bonded hydrogen atoms in one molecule; (C) a first hydrosilylation catalyst that exhibits activity by irradiation of high-energy rays; and (D) a second hydrosilylation catalyst microencapsulated by a thermoplastic resin having a softening point in the temperature range of 50 to 200°C.

The invention discloses an oil-soluble temporary plugging agent for protecting a broad-spectrum drilling oil and gas reservoir and a preparation method, and belongs to the technical field of temporary plugging agents, the oil-soluble temporary plugging agent comprises the following components by weight: 1.2-6.8 parts of a flexible resin material; 1.9 to 7.5 parts of a rigid resin material; 0.3 to 0.7 part of a particle size regulator; 0.2 part to 0.6 part of a particle nucleating agent; and 0.1 to 0.3 part of an interface modifier. The oil-soluble temporary plugging agent has the advantages that the softening point is adjustable in the range of 60-120 DEG C, the particle size is controllable in the range of 0.01-2.0 mm, and due to the flexible structural characteristic of the oil-soluble temporary plugging agent, the oil-soluble temporary plugging agent has wide universality and can be perfectly matched with pore structures of different oil and gas reservoirs, and the problems that softening points of a traditional oil-soluble temporary plugging agent are intensively distributed, and the particle size is not matched with the pore structures of the reservoirs are effectively solved.

A method for producing a laminate of a cured material from a photosensitive resin composition (1) and a photosensitive resin composition (2), wherein the method includes a step of obtaining a laminated material by laminating the composition (2) onto the composition (1); a step of subjecting the laminated material to photoexposure to obtain a photocured material; a step of developing the photocured material to obtain a developed material; and a step of heating the developed material to obtain a laminate, wherein the photoexposure dose required to cure the composition (2) is smaller than the dose required to cure the composition (1), and wherein the composition (1) contains an epoxy resin (1) having a weight-average molecular weight Mw of 5,000 to 600,000, a softening point of at least 140° C., and an epoxy equivalent weight of not more than 2,300.

This invention provides a peelable coating composition for achieving a Fresnel lens effect through heat pressing, comprising the following components in parts by weight: 20-50 parts of polyurethane resin with active groups; 2-6 parts of solid acrylic resin; 1-3 parts of cellulose ester resin; 1-5 parts of latent curing agent; 0-0.3 parts of additives; and 40-60 parts of solvent; wherein the glass transition temperature (Tg) of the polyurethane resin with active groups is 25-50°C. The advantages of this invention are: the system provided by this invention is highly practical and easy to operate. The low Tg (25-50°C) polyurethane resin with active groups introduced easily reaches its softening point during hot pressing, exhibiting excellent fluidity and effectively filling the fine gratings of the Fresnel lens, resulting in a full replication effect. This polyurethane resin, combined with the latent curing agent, is stable at room temperature; when the hot pressing temperature threshold is reached, a cross-linking reaction is initiated. This mechanism improves the system's temperature resistance and solves the problems of easy adhesion and reflection of low Tg resins in the later stages.

The invention discloses a low-polarity hot-melt pressure-sensitive adhesive, which is prepared from the following raw materials in percentage by weight: 50 to 70 percent of APAO polyolefin, 10 to 25 percent of alkane wax, 20 to 30 percent of petroleum resin and 0.1 to 1 percent of antioxidant. The APAO polyolefin with different melt viscosities and different molecular weights at 90 DEG C is adopted, so that the cohesion, flexibility and thermal stability of the colloid can be remarkably improved, and the problem of high-temperature flowing or low-temperature embrittlement generated by the APAO polyolefin with single performance is avoided. According to the invention, the balance between the low viscosity of 3000 + / -300cps at 150 DEG C and the high softening point of more than or equal to 120 DEG C is realized. And moreover, the quick opening time and the wide temperature range adaptability are considered, and the film covering performance of plastic films such as BOPP, PET and PE is improved.

The invention provides polyester resin for a transparent powder coating with excellent adhesive force and leveling as well as a preparation method and application of the polyester resin, and belongs to the technical field of powder coatings. The polyester resin is mainly prepared by taking diethylenetriamine pentaacetic acid, triethyl chlorosilane, 1, 6-hexanediol, N, N-diisopropylethanolamine, 2, 2-dimethyl propanol, neopentyl glycol, 3, 3-tetramethylene glutaric anhydride, 1, 4-cyclohexanedimethanol and the like as raw materials through polymerization. The obtained polyester resin chain segment has many branched structures, the number of amino groups and ester groups in the branched structures is large, the softening point is low, the low-temperature melting fluidity is good, the transparency is high, the adhesive force with a base material is good, then high-functionality diethylenetriamine pentaacetic acid is adopted for carboxyl end capping, the terminal carboxyl functionality is high, the curing activity is high, and the curing effect is good. After being cured with E-12 epoxy resin at low temperature, a coating film is good in leveling property and high in transparency, and can be used in the fields of thermosensitive base materials which are not easy to adhere, such as thin glass materials and the like.

The invention discloses model wax for machining, a method and application, the model wax comprises the following raw materials in parts by weight: 30-60 parts of polyethylene wax, 20-50 parts of EVA, 1-30 parts of resin, 0-5 parts of a reinforcing compatibilizer, 0-3 parts of a plasticizer and 0-1 part of a defoaming agent, the softening point of the polyethylene wax is not lower than 110 DEG C, and the softening point of the resin is not lower than 80 DEG C. According to the invention, the composition of the model wax is optimized, so that the model wax does not need to be melted and molded by mold pressing in the procedure, the wax model with the required shape and size precision can be quickly processed on the existing basic surface of the machining wax by utilizing machining equipment, the size is accurate, the processing efficiency is high, and the wax model is not stuck to a knife.

The application discloses a preparation method of a core-shell structure tin-based anti-oxidation solder alloy, and has the characteristics that an anti-oxidation intermediate alloy block is taken as a base body, a high-softening-point rosin is coated on the anti-oxidation intermediate alloy block, then tin foil is coated as a secondary outer layer, and boron nitride hollow mould is coated as an outermost layer, so that an anti-oxidation intermediate alloy-robin-tin foil-boron nitride coating hollow mould core-shell structure is formed; the anti-oxidation intermediate alloy block is a SnPGa anti-oxidation intermediate alloy block or a SnPGe anti-oxidation intermediate alloy block, the mass ratio of P to Ga in the SnPGa anti-oxidation intermediate alloy is 1:5, the mass ratio of P to Ge in the SnPGe anti-oxidation intermediate alloy is 1:2, the mass ratio of the high-softening-point rosin to the anti-oxidation intermediate alloy is 0.02:1, and the volume ratio of the anti-oxidation intermediate alloy block to the boron nitride coating hollow mould is 1:1.3. The core-shell structure tin-based anti-oxidation solder alloy prepared by the method can significantly improve the alloy element yield, improve the static melt surface anti-oxidation performance, and improve the dynamic melt surface mirror surface maintaining state.

The invention relates to the technical field of pressure-sensitive adhesives, in particular to a high-adhesion high-temperature-resistant copper foil single-sided adhesive and a preparation method thereof. Comprising a copper foil and a pressure-sensitive adhesive which are laminated, the thickness of the copper foil is 12-30 [mu] m, the thickness of the pressure-sensitive adhesive is 10-30 [mu] m, the normal-temperature storage modulus is 200000-270000 Pa, the pressure-sensitive adhesive comprises an acrylate polymer and a terpene polymer, the acid value of the acrylate polymer is 16-22 mgKOH / g when the solid content is 21%, the normal-temperature storage modulus is 150000-180000 Pa, the acid value of the terpene polymer is 60-120 mgKOH / g, the softening point is 120-140 DEG C, and the temperature of the terpene polymer is 20-30 DEG C. The terpene polymer is obtained by free radical polymerization of a terpene monomer, a hard segment monomer and an acidic monomer under the action of an initiator. The copper foil single-sided adhesive prepared by the preparation method disclosed by the invention is thin in thickness and low in cost, and has excellent adhesion and warping resistance to foam.

The present teachings generally relate to a sealant composition that is adapted to be foamed, cured or some combination thereof, a method of making the activatable sealant composition and methods of using the same. The activatable sealant composition comprises one or more preferably high softening point or high melting point polymeric materials; one or more foaming agents; one or more foaming agent activators; and one or more hydrocarbon resins; wherein the activatable sealant composition is supplied to an article of manufacture for providing functional attributes such as scaling, baffling, dampening, reinforcement, or a combination thereof.