420 results about "Rosin" patented technology

The invention belongs to the field of plastic product production, and particularly relates to a composite material for preparing a textile dyeing tube. The composite material mainly comprises the following components in parts by weight: 10 parts of PET resin, 10 parts of ASA resin, 1-6 parts of matt master batches, 1-3 parts of titanium dioxide, 1-2 parts of rosin, 0-1.5 parts of an antioxidant, 0-1 part of a fire retardant and 1-2 parts of a lubricating agent, wherein titanium dioxide is rutile titanium dioxide. Compared with the prior art, the components are good in compatibility; the molded product has excellent physical and mechanical properties, low glossiness, high strength (caused by titanium dioxide) and good tenacity, and is suitable for injection molding of plastic products; the metallic luster caused by titanium dioxide can be reduced; the noise can be reduced; titanium dioxide can be used for disinfecting under irradiation of an ultraviolet lamp; the composite material is very convenient; and the lubricating agent is added, so that the surface is relatively smooth.

The invention relates to the technical field of turpentine processing, in particular to a turpentine continuous melting and clarifying processing device and method.The turpentine raw material is put into a feeding cylinder, piled in an inclined scattering cylinder, subjected to axial autorotation along with the feeding cylinder, discharged downwards and distributed in all areas in a dissolving tank, and after dissolving is completed, the turpentine raw material is poured into the feeding cylinder to be subjected to continuous melting and clarifying processing. When the telescopic part drives the sieve plate to move upwards until the bottom end of the movable cylinder abuts against the sieve plate, the sieve plate axially rotates along with the feeding cylinder and drives the movable cylinder to axially rotate, so that the material leakage port and the material scattering port are staggered, the movable cylinder rolls solid matters in the circumferential direction of the sieve plate, and the resin liquid is discharged into the clarifying tank along the liquid leakage pipe while slag is discharged from the slag outlet; after grease water in the clarification tank is layered, most of the water layer is discharged, the grease water is put into the feeding cylinder for circular treatment, and the steam injection system and the emptying pipe in the clarification tank are opened for distillation treatment, so that the continuous processing efficiency is further improved.

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 present application provides a method for preparing rosin resin, which belongs to the field of rosin processing. The preparation method comprises the following steps: (1) putting rosin into a reactor, heating to 180-200°C under inert gas protection and melting; (2) adding a catalyst of 0.01-0.5% by weight of rosin and a polyol of 6-12% by weight of rosin, and reacting at 200-290°C for 6-15 hours; (3) evacuating until the rosin resin reaches a specified acid value; (4) adding an antioxidant of 0.01-0.5% by weight of rosin, stirring evenly, and discharging to obtain rosin resin. The present application adds a post-treatment agent, so that the prepared rosin resin has less effect on cell activity, shows excellent cell compatibility, and has good weather resistance, and has important application value in the medical field.

The invention relates to rosin modified resin and a preparation process thereof and low-odor printing ink, the rosin modified resin is prepared from maleic anhydride, sulfonate alkyd resin, rosin and a metal organic framework, and the sulfonate alkyd resin is prepared from neopentyl glycol, dibutyltin dilaurate, m-phthalic acid-5-sodium sulfonate, phthalic anhydride and pentaerythritol. The printing ink has the effect of improving the strength and smell of the printing ink.

The invention relates to the technical processing field of copper powder columns, in particular to a production process of an integrated supporting copper powder column and a VC vapor chamber, and the production process comprises the following steps that a mold is provided with a plurality of powder containing units, each powder containing unit is provided with a plurality of powder preparing grooves, and the adjacent powder preparing grooves are connected through a channel; the preparation method comprises the following steps: uniformly stirring copper powder, bismuth trioxide, antimony trioxide, silver, rosin resin, an adhesive, carbon nanotubes, a pore forming agent and water to obtain mixed powder; filling the mixed powder into a powder making groove and a channel; inserting the mixed powder into the center of the powder making tank filled with the mixed powder to obtain a pre-fired product; and preheating the pre-fired product in an environment with the temperature of 200-300 DEG C, preserving heat for 40-60 minutes at the temperature of 600-800 DEG C, preserving heat for 2-3 hours at the temperature of 1070-1100 DEG C, cooling to 20-30 DEG C, and demolding to obtain a finished product. Through the design of the powder containing unit of the mold, copper column inserting firing is matched after powder filling, an integrated supporting structure is formed, the overall stability of the supporting column is enhanced, different height requirements are met, collapse and falling are avoided, and the use stability of the vapor chamber is guaranteed.

The invention discloses a natural resin adhesive, a production method and application in paper-plastic composite packaging, and belongs to the technical field of adhesives, raw materials adopt bio-based rosin resin and amber resin as main materials and polyimide resin containing antioxidant modified polysilsesquioxane as an auxiliary material, and the requirements of green and environmental protection are met. The adhesive has excellent ultraviolet shielding function, can meet the requirement of long-time adhesion of packaging without aging in paper-plastic composite packaging, and structurally contains rigid structures of polysilsesquioxane and titanium-based MOF, so that the overall strength of the adhesive can be improved, cracking and stripping are avoided, and the adhesive has high adhesive strength. And the porosity of the polysilsesquioxane and the titanium-based MOF can improve the heat dissipation capability of the adhesive.

The invention relates to a lead-free and halogen-free soldering paste and a preparation process thereof, and belongs to the technical field of soldering paste production, through the combination of nano-silver-loaded carbon nanotubes, organically coated solder alloy powder and soldering flux, the surface tension of the lead-free and halogen-free soldering paste can be reduced by carbon nanotube surface carboxyl in the nano-silver-loaded carbon nanotubes, so that the lead-free and halogen-free soldering paste is obtained. Nano-silver and tin form an Ag3Sn strengthening phase which synergistically promotes wetting and spreading of the solder on a substrate, meanwhile, the carbon nanotubes loaded with the nano-silver are uniformly dispersed in the soldering paste to play a dispersion strengthening role, and the brittleness caused by bismuth segregation is effectively inhibited in cooperation with the grain refinement effect of copper and indium in the solder alloy powder; and the organic coating layer hydrogenated rosin-terpene resin and the soldering flux alcohol ether solvent form a slight dissolution-fusion effect, so that the welding flux alloy powder is prevented from being oxidized, an organic acid active agent can be released to remove a substrate oxidation film, the metallurgical bonding quality of a welding interface is further guaranteed, and the defects of pseudo soldering, cavities and the like are reduced.

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 belongs to the technical field of adhesives, and relates to an epoxy resin composition, an epoxy resin adhesive film and application thereof. The epoxy resin composition comprises epoxy resin, a curing agent, a flexibilizer, a filler and rosin modified phenolic resin, the curing agent at least comprises a latent curing agent, the flexibilizer at least comprises acrylate rubber, the softening point of the rosin modified phenolic resin is 120-180 DEG C, the acid value is 40-100 mgKOH / g, and the filler is a filler. The rosin modified phenolic resin with the specific softening point and acid value is introduced, and the types of the curing agent and the flexibilizer are limited, so that the damping loss factor of an epoxy resin adhesive film prepared from the epoxy resin composition is relatively low in the range of 0-100 DEG C, and the stability of the damping loss factor is relatively high; meanwhile, the adhesive also has the characteristics of high elastic modulus, high toughness, high peel strength, good normal-temperature storage stability and good high-temperature rapid reactivity.

Systems, devices, and methods are disclosed for pen that distributes viscous plant material, such as rosin, from a cartridge. The pen receives, from a button, input corresponding to a first control instruction. The pen has a motor configured to receive the first control instruction from the controller and, in response, drive a spindle that linearly displaces a plunger, wherein the linear displacement of the plunger causes plant material to be pushed out of a nozzle of the pen. The pen cartridge includes a rubber plug configured to be linearly displaced by the plunger to cause rosin to be disturbed from the cartridge.

The invention discloses bonding glue, a preparation method and application, and belongs to the technical field of bonding glue. According to the bonding adhesive provided by the embodiment of the invention, the styrene-ethylene-butylene-styrene block copolymer and the rosin modified resin are compounded, and the styrene-ethylene-butylene-styrene block copolymer and the rosin modified resin both have relatively good high-temperature resistance and play a synergistic effect; therefore, the temperature resistance of the bonding glue is effectively improved.

This invention provides a breathable plaster matrix for application and its preparation method, belonging to the field of polymeric dressings and plasters. The plaster matrix raw materials include terpene-modified rosin beeswax, hydrogenated rosin glyceryl ester, camellia oil, castor oil, stearic acid hydrophobically modified microcrystalline cellulose, zinc oxide, glycerin, coated citric acid, sodium bicarbonate, polyethylene glycol, camphor, and menthol. The terpene-modified rosin beeswax is prepared by reacting rosin and α-pinene in the presence of di-tert-butylperoxyisopropylbenzene, followed by the addition of white beeswax and maleic anhydride, and then the addition of trimethylolpropane. The stearic acid hydrophobically modified microcrystalline cellulose is microcrystalline cellulose coated with stearic acid. The coated citric acid is citric acid coated with hydrogenated castor oil. This invention's plaster matrix significantly improves skin breathability, application comfort, and biocompatibility while ensuring sufficient adhesion, formability, and drug loading capacity.

This invention discloses a gravure printing ink composition and its preparation method. The ink, by weight, comprises: 15-35 parts chlorinated polypropylene, 10-20 parts EVA-40W, 4-8 parts rosin-modified resin, 0.3-0.8 parts polyketide resin, 0.1-0.3 parts chlorinated ether resin MP45, 0.3-0.8 parts silica, 0.05-0.15 parts antistatic agent, 0.2-0.5 parts dispersant, 0.1-0.3 parts modified aluminum silicate AM660, 8-12 parts benzidine yellow, 6-10 parts fast red BHXL-T, 3-5 parts permanent orange yellow No. 13, 3-7 parts calcium powder, and 30-50 parts mixed solvent. During preparation, each resin is pre-dissolved separately, then mixed with pigments, additives, etc., and ground to a fineness ≤15μm. The ink of this invention has bright colors, good light resistance, excellent adhesion, antistatic properties, and printability, and is particularly suitable for gravure printing on polyolefin films.

A modifier for a thermoplastic resin that contains a rosin resin having a mass residual rate after heating for two hours at 300°C of 40 mass% or more and a mixed methylcyclohexane aniline cloud point (MMAP) of from -10 to 20°C.

The invention relates to the technical field of sealing glue for shoes, and discloses environment-friendly traceless sealing glue for shoes and a preparation method of the environment-friendly traceless sealing glue. The sealing compound is prepared from 40 to 50 parts of polyester polyol, 9 to 15 parts of HDI (hexamethylene diisocyanate) tripolymer, 0.1 part of environment-friendly catalyst, 2 to 5 parts of silane coupling agent, 1 to 1.5 parts of organic silicon flatting agent, 15 to 20 parts of ethyl acetate / acetone mixed solution and 8 to 10 parts of hydrogenated rosin glyceride and terpene resin. The sealing compound disclosed by the invention has the characteristics of traceless invisibility, high-strength adhesion, good leveling performance, wide applicability and environmental protection.

The invention discloses a polyfunctional rosin-based reactive diluent. The structural formula of the polyfunctional rosin-based reactive diluent is shown as a formula (I) or a formula (II). The polyfunctional rosin-based reactive diluent has a rigid tricyclic diterpenoid structure of rosin, is small in molecular weight and low in viscosity, can be used for preparing an ultraviolet curing material, has excellent hardness and scratch resistance after light curing and film forming, and is simple in preparation method, low in cost and suitable for industrial production. And a polycarboxylic acid functional group is efficiently constructed under a mild condition.

The invention belongs to the technical field of high polymer materials, and particularly discloses glycidyl ester type epoxy resin and a preparation method thereof, the preparation method comprises the following steps: (1) melting polymerized rosin, adding a first catalyst, maleic anhydride, methacrylic acid and hydroxyl-terminated hyperbranched polyester, and reacting to obtain a precursor; and (2) adding bisphenol A epoxy resin and a second catalyst into the precursor, and reacting to obtain the glycidyl ester type epoxy resin. According to the invention, maleic anhydride, methacrylic acid, hydroxyl-terminated hyperbranched polyester and bisphenol A epoxy resin are combined; the three-dimensional synergistic enhancement of rigidity-flexibility-branching is realized, the proportion of rigid and flexible chain segments in a molecular structure is effectively coordinated, reaction active sites and crosslinking density are effectively improved, more reaction active sites and reaction activity are provided, and the mechanical property of a product is effectively improved.

The invention relates to an interlayer separant and application thereof. The interlayer separant is used between a polyurethane coating and an asphalt coiled material and is formed by a polyurethane coating, and the polyurethane coating comprises the following components: maleic anhydride modified polyurethane, silane modified polyurethane, maleic anhydride modified colloid and a solvent; the maleic anhydride modified polyurethane is obtained by reaction of raw materials including polyol, maleic anhydride, isocyanate and a catalyst; the silane modified polyurethane is obtained by reaction of raw materials including polyol, a silane coupling agent, isocyanate and a catalyst; the colloid is selected from one or a combination of more of petroleum resin, asphalt, rosin resin, terpene resin, butadiene-styrene rubber and butyl rubber; the maleic anhydride modified colloid is obtained by reacting raw materials including maleic anhydride, colloid and an initiator. The interlayer separant can isolate migration of auxiliaries such as a plasticizer in a traditional polyurethane coating and improve the compatibility and bonding performance of the traditional polyurethane coating and an asphalt coiled material.

This invention belongs to the field of printing consumables technology, specifically relating to a thermally foamed anti-counterfeiting inkjet ink. The thermally foamed anti-counterfeiting inkjet ink comprises an organic fluorescent dye, a solvent, a humectant, a resin, and additives; the solvent includes at least one selected from ethanol, n-propanol, isopropanol, n-butanol, and dimethyl acetate; the humectant includes at least one selected from ethylene glycol, diethylene glycol, and glycerin; and the resin includes rosin resin or modified rosin resin. The thermally foamed anti-counterfeiting inkjet ink has advantages such as extremely low viscosity and surface tension, and good continuous printing performance.

The application provides a flux for spot soldering of soldering paste; raw materials of the flux include, by total mass: 2-7% of acid modified rosin, 25-38% of disproportionated rosin, 1.3-4% of compound active agent, and solvent supplementing the rest to 100%; the compound active agent includes halogen-containing active agent and / or organic acid active agent; the organic acid active agent includes at least two of organic acid with normal pressure boiling point of 90-180 DEG C, organic acid with normal pressure boiling point of 200-300 DEG C, and organic acid with normal pressure boiling point of 305 DEG C or more; the solvent includes organic matter with at most 3 unsaturated structures and at least 1 polar group, and reduces post-soldering residue; the application effectively reduces the amount of acid modified rosin, and expands the soldering temperature range of the flux; the soldering paste of the flux is very suitable for spot soldering operation process due to excellent flow viscosity, wettability and expansion rate, and has high soldering reliability.

The invention discloses washable modified rosin resin, a preparation method thereof and washable mark pen ink. Wherein the washable modified rosin resin is prepared from the following components in parts by weight: 40 to 60 parts of natural rosin and 15 to 30 parts of maleic anhydride; 5 to 15 parts of polyol; 15 to 38 parts of an acrylic ester monomer; 3 to 10 parts of a pH responsive monomer; wherein the pH (Potential of Hydrogen) responsive monomer is dimethylaminoethyl methacrylate. Natural rosin is modified by adopting maleic anhydride and polyhydric alcohol, so that a molecular structure contains a large number of polar groups such as carboxyl, hydroxyl, ester groups and ether bonds, good stability is achieved, sedimentation and layering of pigments in ink can be effectively prevented when the rosin is prepared into the ink, and uniformity and consistency of writing colors are guaranteed. By adding the pH responsive monomer, in a cleaning state, tertiary amine groups are protonized, molecular chains are curled, the hydrophilicity is remarkably enhanced, the adhesive force is greatly reduced, and super-easy cleaning is realized.

The application provides a modified polyurethane primer and a preparation method thereof. The preparation raw material of the modified polyurethane primer comprises 15-25 parts of tackifying resin, 15-25 parts of crosslinking resin, 5-9 parts of pigment carbon black, 0.5-1.0 part of catalyst and 50-60 parts of solvent, the tackifying resin is obtained by the reaction of first polyester diol, diisocyanate and hydroxyl-terminated organic silicon modified rosin-based end-capping agent, the hydroxyl-terminated organic silicon modified rosin-based end-capping agent is obtained by the reaction of epoxy silane and rosin, and the crosslinking resin is obtained by the reaction of triisocyanate, second polyester diol and polyamino silane. The modified polyurethane primer provided by the application has excellent initial adhesion performance under low temperature (about 0 DEG C) conditions, meanwhile, the primer has the characteristics of strong adhesion, excellent storage stability, good durability, wide substrate adaptability and the like, is very suitable for use in cold winter environment, and can obviously shorten the fixture removal time of a main engine factory and the fast driving-off time in the after-sales market.

Polymeric materials which inter alia may be used as binder materials for energetic materials and to improved energetic materials containing such a binder and a process for the manufacture of these novel polymeric materials wherein the polymeric material comprising a hydroxyl group containing compound reacted with a cross-linking agent having at least two reactive groups per molecule at least one of which is reacted with one or more hydroxyl groups of the hydroxyl containing compound and at least another of the reactive groups is reacted with a hydroxyl group of a hydroxyl containing rosin ester resin.

The invention relates to the field of resin processing, and particularly discloses high-hardness rosin resin and a preparation method thereof.The high-hardness rosin resin is prepared from first-grade rosin, pentaerythritol, phenolic aldehyde glycidyl ether, polypropylene glycol diglycidyl ether, nano-silicon dioxide, polysulfide rubber, an antioxidant and a catalyst; according to the manufacturing method, phenolic aldehyde glycidyl ether can react at medium and high temperatures, and low fluid viscosity at the high temperature is beneficial to stirring and uniform distribution of nano silicon dioxide. Phenolic diglycidyl ether is used as an epoxy group cross-linking agent, and a rigid network structure is constructed on a molecular level, so that the hardness of the resin can be greatly improved; the polypropylene glycol diglycidyl ether is introduced into a flexible chain segment, so that the brittleness is reduced. The nano silicon dioxide is uniformly dispersed at the periphery of the resin and is filled in gaps among molecular groups, so that the rigidity of the resin is macroscopically improved. The combination of the two can greatly improve the strength of the resin.

The present invention is directed to tall oil rosin in solid, crystalline form. The tall oil rosin according to the present invention has a very low color, i.e. it is essentially color-less. The present invention is also directed to a process for producing the tall oil rosin and to the use of the tall oil rosin according to the present invention.

The utility model belongs to the technical field of rosin resin processing, and particularly relates to an efficient rosin resin dissolving device which comprises a resin reaction kettle body, a motor mounted at the top of the resin reaction kettle body, a stirring pipe in threaded connection with the bottom of a transmission shaft of the motor through a screw rod, and a bearing sleeved at the intersection of the stirring pipe and a top cover of the resin reaction kettle body, a limiting block is arranged on the side wall of the limiting plate, a sealing ring is connected to the surface of the limiting block in an embedded mode, the other side of the sealing ring abuts against an outer pipe, the opening end of the inner wall of the outer pipe is in threaded connection with a threaded groove in the front end of the heating pipe, and stirring blades are in threaded connection with the bottom of the stirring pipe. According to the resin reaction kettle disclosed by the utility model, the heating pipe fixed on the stirring pipe through the threads is used for stirring rosin resin in the resin reaction kettle body and heating and dissolving the rosin resin close to the stirring pipe, so that the dissolving efficiency of the rosin resin is improved.

The application belongs to the technical field of precision casting, and particularly relates to a high-viscosity and high-strength precision casting adhesive wax and a preparation method thereof. The adhesive wax comprises the following components: 30-40 parts of paraffin wax, 16-24 parts of microcrystalline wax, 25-30 parts of petroleum resin, 8-14 parts of rosin resin, 5-10 parts of EVA, 2-5 parts of LDPE and 0.1-2 parts of additives; wherein the LDPE is composed of two kinds of LDPE with different melt indexes. By introducing the petroleum resin, rosin resin, ethylene-vinyl acetate copolymer (EVA) and low-density polyethylene (LDPE) into the paraffin wax and microcrystalline wax base system, and controlling the proportion between the resin system and the polyolefin reinforcing system, the adhesive wax has high viscosity and hardness at 100 DEG C, and the bending strength is improved. Thus, the comprehensive performance of the adhesive wax is achieved, i.e., the adhesive wax is not easy to sag at high temperature, is not easy to be pressed at room temperature, and is not easy to crack under stress.

Disclosed herein is a method of using resin acids as defense gene inducers for biotic stress in a plant. Also disclosed herein are a composition including rosin and a method of using the composition as a defense gene inducer for biotic stress in a plant.

The invention discloses high-temperature halogen-free soldering flux, solder paste and a preparation method. The high-temperature halogen-free soldering flux comprises 30%-50% of a high-boiling-point solvent, 30%-40% of rosin, 1%-8% of modified thermoplastic resin, 5%-10% of an active agent, 0.5%-1.0% of a modified surfactant, 4%-8% of a thixotropic agent, 0.5%-3% of metal salt and 3%-5% of an antioxidant. The solder paste comprises 85%-88% of lead-free metal alloy powder and 12%-15% of high-temperature halogen-free scaling powder. Weighing an organic solvent, adding into a container, and heating to 80-95 DEG C; adding the thixotropic agent and uniformly stirring; the temperature is reduced to 60-70 DEG C, rosin, modified thermoplastic resin, an active agent, metal salt, an antioxidant and a modified surfactant are weighed and added, constant-temperature stirring is conducted till dissolution is achieved, bubbles in the scaling powder are discharged, the scaling powder is taken out and cooled into paste, the materials are ground, and the high-temperature halogen-free scaling powder is obtained.