73 results about "Resin acid" patented technology

The invention relates to the technical field of protective glue, in particular to extreme high and low temperature impact resistant UV (ultraviolet) photocuring electronic protective glue which is prepared from the following raw materials in parts by weight: 30-50 parts of synergistically modified epoxy-urethane acrylate oligomer, 20-35 parts of composite active monomer, 1.5-5 parts of composite photoinitiator and 10-20 parts of core-shell structure inorganic composite filler, 0.6 to 2.2 parts of a silane coupling agent, 0.12 to 1.1 parts of an antioxidant and 0.11 to 1 part of a leveling agent; the preparation method of the synergistically modified epoxy-urethane acrylate oligomer comprises the following steps: reacting resin acid modified epoxy resin with phosphoric acid di (hydroxyethyl acrylate) ester at 80-90 DEG C, and introducing a phosphate group to obtain a phosphate modified epoxy acrylate intermediate; the protection glue unifies rigidity, flexibility and flame retardance on the molecular level through the cooperation of the hybrid oligomer and the core-shell filler, realizes high heat conductivity, strong adhesion and extremely low internal stress, and has extreme temperature impact resistance, long-term damp-heat aging resistance and high-reliability protection performance.

The invention discloses a liquid molding compound for eliminating flow marks and a method and application thereof, and relates to the technical field of electronic packaging materials, the liquid molding compound comprises the following components by mass: 85%-90% of silicon dioxide, 4%-8% of epoxy resin, 5%-8% of an anhydride curing agent, 0.2%-0.5% of organic pregel microparticles, 0.2%-0.3% of a catalyst, and 0.1%-0.2% of carbon black, the maximum particle size of the silicon dioxide is less than 75 microns, and the particle size distribution of the silicon dioxide is as follows: 1.4 microns < = D10 < = 1.6 microns, 12 microns < = D50 < = 18 microns, and 40 microns < = D90 < = 50 microns. The flow mark of the liquid molding compound is improved by adopting the silicon dioxide with different particle size distribution, the catalyst formed by compounding the silicon dioxide and the organic pre-gel microparticles, so that the liquid molding compound has no flow mark after being packaged and cured, and the comprehensive performance and the production yield of a packaged device are improved.

The invention provides a high-temperature-resistant and high-humidity-resistant double-sided tape for bonding a PC (Polycarbonate) base material. The high-temperature-resistant and high-humidity-resistant double-sided tape has a four-layer structure, namely a first adhesive layer, a reinforced body layer, a second adhesive layer and a release protective layer in sequence. The two adhesive layers are acrylate pressure-sensitive adhesives and comprise an acrylate polymer solution, tackifying resin, a zeolite molecular sieve and a cross-linking agent. The key of the pressure-sensitive adhesive is an acrylate polymer solution formula, the rigidity of a molecular chain is enhanced by introducing methyl methacrylate and isobornyl methacrylate, and the high-temperature adhesive strength is ensured; meanwhile, the acid values of the hydroxyl / carboxyl-containing monomer and the tackifying resin are controlled to reduce hydrophilic groups and improve moisture resistance, and the zeolite molecular sieve is used for adsorbing gas released by the PC base material under high temperature and high humidity to prevent the gas from damaging a bonding interface. According to the scheme, the process is simple, the cost is controllable, and the problem that the bonding force of the PC base material is reduced due to gas release in a high-temperature and high-humidity environment is effectively solved.

To provide a film, a laminate film, a packaging bag, pellets and a recycled film which have excellent adhesiveness, and are capable of satisfying recyclability and barrier property.SOLUTION: Provided is a film 10 containing a polyolefin-based resin which is not acid-modified, an acid-modified polyolefin-based resin, and an ethylene-vinyl alcohol copolymer (EVOH), where a first resin layer 11 containing the polyolefin-based resin which is not acid-modified, a third resin layer 13 containing the acid-modified polyolefin-based resin, and a second resin layer 12 containing the ethylene-vinyl alcohol copolymer (EVOH) may be laminated in this order.SELECTED DRAWING: Figure 1

The invention relates to a water-soluble ultraviolet absorbent 4-disubstituted aminobenzyl subunit camphorsulfonic acid and a synthesis method and application thereof, and the synthesis method comprises the following steps: in a toluene-methanol mixed solvent, carrying out heating reflux reaction on camphorsulfonic acid and 2 equivalent weight of sodium methoxide, and after enolation conversion is completed, carrying out reduced pressure distillation to obtain the 4-disubstituted aminobenzyl subunit camphorsulfonic acid. Slowly dropwise adding a corresponding 4-disubstituted aminobenzaldehyde solution with the molar weight equal to that of camphorsulfonic acid, continuously heating and stirring to react for 6-12 hours, adding water to terminate the reaction, acidifying the reaction solution by using hydrochloric acid or sulfonic acid type cation exchange resin, separating to remove methylbenzene, adjusting the pH value of a water phase to about 6.5, performing rotary evaporation dehydration under reduced pressure, and extracting a crude product by using a conventional method; a target product can be obtained through column chromatography purification, and the target product not only has water solubility, but also has the characteristic of absorbing UVA and UVB ultraviolet light at the same time; the composition can be applied to sun-screening agent products, cosmetics or home care products, and also can be applied to various industrial products such as paint, varnish, plastics, textiles and rubber to improve the light resistance of the industrial products.

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 present application relates to the technical field of biomass black particle, and provides a method for continuously producing forestry biomass black particles with low energy consumption and a product thereof, the method comprising the following steps: mixing forestry biomass crushed material with a water content of less than 12% with an acid component after impurity removal and preheating treatment to obtain a mixed system; performing steam insulation and pressure maintaining treatment on the mixed system, then performing pressure reduction and spraying, and performing steam-solid separation to obtain a solid with a water content of 12-18%; and forming the solid to obtain the biomass black particles; the acid component is obtained by removing volatile components in a steam component obtained through steam-solid separation by a rectification process with a vacuum degree of 80-85 kPa; and the volatile components include one or a combination of two or more of essential oil, resin acid and furfural. The present application is continuously operated in the whole process, the process is controllable, the product quality is stable, and the utilization rate of forestry biomass components is high.

The invention provides a low-solid-content and temperature-resistant single-component chloroprene rubber adhesive and a preparation method thereof. The single-component chloroprene rubber adhesive comprises modified chloroprene rubber, tackifying resin, an acid absorbent, an auxiliary agent and a solvent, the modified chloroprene rubber is prepared through an emulsion polymerization method, 2-chloro-1, 3-butadiene is used as a main monomer, a small amount of 2-hydroxyethyl acrylate is introduced for copolymerization, and hydroxyl functional groups are introduced into rubber molecules; by controlling the molar ratio of the two monomers, the polarity and the heat resistance of the system are improved, and meanwhile, good processability is considered; the tackifying resin is terpene phenol resin prepared by reacting alpha-pinene and phenol, and the initial adhesion and compatibility of the adhesive are further improved; the obtained single-component chloroprene rubber adhesive has the advantages of being low in solid content, good in construction performance, excellent in heat resistance and storage stability and the like, and is suitable for the field of electronic, electrical and industrial bonding.

To provide a resist composition capable of producing a resist pattern having good line edge roughness.SOLUTION: The resist composition contains a resin containing a structural unit derived from a compound represented by a specific structure and a structural unit represented by formula (a1-2), an acid generator, and a carboxylate salt generating an acid weaker in acidity than an acid generated from the acid generator. [In the formulae, La2 represents -O - or the like; Ra7 represents an alkyl group, an alkenyl group, an alicyclichydrocarbon group, or the like; n1 represents an integer of 0 to 10; and n1 ' represents an integer of 0 to 3.]. ] SELECTED DRAWING: None

The invention relates to a rust removal lubricant for metal and a preparation method of the rust removal lubricant, and belongs to the technical field of metal rust removal and corrosion prevention. The rust removal lubricant for the metal comprises a linoleic acid modified resin acid derivative, a quaternary ammonium salt modified montmorillonite-vegetable oil compound, a quaternized lignin derivative, d-limonene, epoxidized soybean oil, maleic anhydride modified tung oil, benzotriazole, a nonionic surfactant, a pH buffer system and deionized water. Through the molecular design and synergistic effect of core components such as the linoleic acid modified resin acid derivative, the quaternary ammonium salt modified montmorillonite-vegetable oil compound, the quaternized lignin derivative and the d-limonene, excellent permeability, rapid rust removal capacity and long-acting lubricating and anti-rust performance are achieved; the metal rust remover can be widely applied to rust removal, lubrication and protection of metal products such as mechanical equipment, automobile parts and hardware tools, the service life of the metal parts is prolonged, meanwhile, bio-based raw materials are adopted, the VOC content is low, and the environment-friendly requirement is met.

The invention provides a chemically amplified positive photoresist as well as a preparation method and application thereof, and relates to the technical field of photoresists. The chemically amplified positive photoresist provided by the invention comprises mixed resin and sulfydryl-containing resin, wherein the mixed resin is composed of acid dissociation (methyl) acrylic resin and alkali-soluble resin; due to the addition of the (methyl) acrylic resin with the acid dissociation property, the photoresist shows excellent tolerance to an electroplating solution, so that an electroplating forming product with excellent collapse margin is obtained. And meanwhile, sulfydryl is introduced into a resin system, so that the size of the footing in a non-exposure area can be effectively controlled, and the balance between the size of the footing and the electroplating-resistant liquid is realized. After the chemical amplification type positive photoresist is exposed, a photoresist pattern with relatively good morphology can be formed.

The invention relates to the technical field of pipeline anticorrosion materials, and discloses a preparation method of a polypropylene adhesive for pipeline anticorrosion, which comprises the following steps: (a) providing polypropylene matrix resin, anhydride grafted polypropylene and the like; (b) putting the polypropylene matrix resin, the anhydride grafted polypropylene, the tackifying resin, the elastomer, the antioxidant and the plasticizer into mixing equipment, and mixing at a low speed from room temperature to 60 DEG C to obtain a premix; and (c) adding the premix, the filler, the curing agent and the diluent into a double-screw extruder together, and carrying out melt blending, extrusion, cooling and granulation to obtain the polypropylene adhesive for pipeline corrosion prevention. Compared with the prior art, the preparation method of the polypropylene adhesive for pipeline corrosion prevention, provided by the invention, has the advantages that through an optimized raw material formula and a specific process flow, the prepared adhesive has excellent bonding strength, flexibility and aging resistance, is suitable for being prepared into a powder form, and has a good application prospect. And storage, transportation and coating in the pipeline anti-corrosion construction are facilitated.

Disclosed are compositions including fatty acid derivatives and methods using the compositions as dispersants, antifoulants, or both. The compositions can be used to prevent or reduce polymer formation and polymer deposition in equipment used in petrochemical processes. The fatty acid derivative compositions are prepared from fatty acid preparations have low amounts of, or no, resin acids and glycerol, and also have low amounts of C16:0- and C18:0-fatty acids, and high total amounts of C18 partially unsaturated fatty acids, and / or the fatty acid derivative compositions are prepared from soy fatty acids and / or canola fatty acids. The fatty acid derivative can be used in compositions and methods to control unwanted polymerization, unwanted corrosion, and / or unwanted settling of particulate materials during industrial processes. Also, compositions of the disclosure have the additional benefit of prolonged storage stability.

Provided is a resin composition containing: a vinyl ester resin (A) having an epoxy group and an acid value of less than 1 KOHmg / g; at least one type of monomer (B) selected from radical-polymerizable monomers and epoxy monomers and excluding methacrylic acid; methacrylic acid (C); and a thickening component (D). In the resin composition, the content ratio of component (C) to component (D) ([methacrylic acid] / [thickening component]) in terms of a mass ratio is 0.5-4.5.

Clear binder and its applications. Composition of clear binder comprising (i) a plasticizing agent comprising at least one vegetable oil comprising an ester compound derived from tall oil, said vegetable oil having a solidification temperature, determined according to method ASTM D1982, of less than 30°C and an acidity index, determined according to method ASTM D465, of less than or equal to 150 mg KOH / g, (ii) a structuring agent comprising at least one vegetable resin selected from natural rosins, modified rosins, rosin esters, and any mixture thereof, said vegetable resin having an acidity index, determined according to method AQCM 001, of less than 8 mg KOH / g, (iii) at least one polymer based on conjugated diene motifs and aromatic monovinyl hydrocarbon motifs, and (iv) optionally an adhesion enhancer. Figure for the abridged version: None

The utility model relates to the technical field of C5 resin processing, and discloses feeding equipment for reducing the acid value of C5 resin, which comprises an acid reducing tank, and an alkaline neutralizer storage barrel is vertically arranged in the middle of the top end of the acid reducing tank; and the feeding mechanism is used for continuously and uniformly mixing the alkaline neutralizer and the C5 resin, and comprises an electric-hydraulic push rod and a transfer pump. According to the device, the electric-hydraulic push rod is controlled to work, the piston can be pushed to move downwards, an alkaline neutralizer in the alkaline neutralizer storage barrel can be guided into the filling pipe, the transfer pump is controlled to work, C5 resin at the bottom end in the deacidification tank can be pumped out through the transfer pump, and the C5 resin is guided into the filling pipe through the discharging pipe; c5 resin can be uniformly dispersed into the deacidification tank together with an alkaline neutralizer discharged from the alkaline neutralizer storage barrel through the liquid guide holes, and meanwhile, the alkaline neutralizer in the deacidification tank can be uniformly mixed with the C5 resin.

The invention provides a hollow polymer microsphere, a pasty molding compound modified based on the hollow polymer microsphere and a preparation method of the pasty molding compound, and belongs to the technical field of pasty molding compounds. The pasty molding compound comprises the following components: hollow polymer microspheres, epoxy resin, an anhydride curing agent, chopped quartz fibers, calcium carbonate and magnesium hydroxide. The pasty molding compound disclosed by the invention has low dielectric constant, excellent wave-transparent property and good mechanical property, and is suitable for the field of high-performance composite materials such as radomes, wave-transparent structural materials and electronic packaging materials. By introducing the hollow polymer microspheres, the dielectric constant of the composite material is effectively reduced, the wave-transparent performance of the composite material is improved, meanwhile, good mechanical performance is kept, and the composite material has wide application prospects.

The present invention relates to a clear coat composition capable of low-temperature curing. The clear coat composition of the present invention comprises: a polyester resin; a first acrylic resin containing styrene units; a second acrylic resin having an acid value of 1.6-3.4 mg KOH / g; an isocyanate-based curing agent; and a curing catalyst.

Disclosed herein are pharmaceutical compositions having a mixture of at least one active agent and an ion exchange resin, such that the composition releases about 75% or more of the at least one active agent within about 1 hour as measured by in-vitro dissolution in a USP Apparatus 2 (paddle) at about 50 rpm in about 900 ml 0.1N HCl at about 37° C. and related methods. Also disclosed herein are pharmaceutical compositions having a mixture of a drug susceptible to abuse, a non-opioid analgesic and an ion exchange resin, the composition further including at least one gelling agent and related methods.

To provide a resin composition for preparing a liquid composition for separative printed layer formation which enables formation of a printed layer that can be easily separated under a mild alkali condition, and is excellent in blocking resistance, heat resistance, glossiness and wet abrasion resistance.SOLUTION: There is provided a resin composition for preparing a liquid composition for separative printed layer formation. The resin composition contains a binder resin (A), a resin (B) for imparting separation property, which has an acid value of 60 to 300 mgKOH / g, and a resin (C) having an acid value of 10 to 55 mgKOH / g and an amine value of 15 mgKOH / g or less, the binder resin (A) is a combination of (A-1) a cellulose resin and a polyamide resin, a content of the resin (B) is 2 to 20 mass% based on a solid content (except for a pigment), a content of the resin (C) is 2 to 20 mass% based on a solid content (except for a pigment), and the content of the resin (C) with respect to 1 pts.mass of the resin (B) is 0.3 to 3.2 pts.mass.SELECTED DRAWING: None

The utility model relates to the technical field of waste gas treatment, and discloses a chimney for unsaturated polyester resin acid waste gas treatment, which comprises a chimney body, an exhaust pipe is fixedly connected to the outer wall of the chimney body, a shell is fixedly connected to the outer wall of the exhaust pipe, an adjusting assembly is arranged in the shell, and a driving assembly is arranged at the bottom of the shell. The adjusting assembly comprises two guide rods, the guide rods are fixedly connected into the shell, the outer walls of the guide rods are slidably connected with two sliding blocks, a baffle is fixedly connected between the outer walls of the two sliding blocks, the outer walls of the guide rods are sleeved with springs, the driving assembly comprises a shell, and the shell is fixedly connected to the bottom of the shell. According to the utility model, the flow and the flow velocity of waste gas are intelligently adjusted through the cooperative work of the adjusting assembly and the driving assembly. When the temperature of waste gas changes, the volume of paraffin in the shell changes, the baffle is driven by the connecting rod to slide on the guide rod, and therefore the waste gas circulation section in the exhaust pipe is adjusted.

A polymer film, comprising at least one active layer made of a composition containing a polymeric substrate comprising at least one of the polyolefin polymer and polyamide 6, and a coniferous resin acid(s) dispersed in the polymeric substrate.

A rubber material which is a rubber material containing a sulfur-modified chloroprene polymer, the content X (mass%) of sulfur constituting the aforementioned sulfur-modified chloroprene polymer, and the total amount Y (mass%) of a conjugated resin acid and a salt of a conjugated resin acid satisfy the following formula (A) with respect to the total amount of the rubber material being 1.00 mass% or more.13.90X - 5.10 ≤ Y...(A)

An object of the present invention is to provide a polyol composition which, despite using a biomass-derived polyester polyol, has high miscibility with a polyisocyanate and is capable of producing a flexible polyurethane foam having high flexibility and appropriate compression hardness.　 The present invention relates to a polyol composition characterized by including a polyester polyol and a polyether polyol.　The polyester polyol is a reaction product of raw material compounds including:　 a rosin (a) including a resin acid (a1) having a conjugated double bond;　 a biomass-derived fatty acid (b) including an unsaturated fatty acid (b1);　 an α,β-unsaturated carboxylic acid (c);　 an aliphatic saturated polycarboxylic acid (d); and　 a polyol (p) including a diol (p1) having an ether bond.　

The application discloses a method for removing heavy metals from electroplating waste acid, and belongs to the technical field of wastewater treatment. The method comprises the following steps: S1, filtering electroplating waste acid to obtain pretreated liquid; S2, adjusting the pretreated liquid to be acidic and then performing ultrafiltration to obtain filtered liquid; S3, adsorbing and separating heavy metals and sulfate by using amino imidazole phosphonic acid modified D851 resin; S4, eluting and desorbing the resin to regenerate and recycle; and S5, electrolyzing the sulfate solution to recover high-purity metal elements at a cathode and recover sulfuric acid at an anode. The method realizes efficient and deep removal of heavy metals from electroplating waste acid by a combined process, and simultaneously completes resource recovery of sulfuric acid and metals; the modified resin has strong acid resistance and good cyclic stability, the overall process is stable in operation, and the environmental protection benefit and economic benefit are outstanding, so that the method is suitable for industrial application.

[Problem] To provide: an epoxy resin composition which has excellent impregnation into reinforcing fibers, enables high-order control of the crosslinked structure of a cured object, and achieves both high elastic modulus and high toughness; and a fiber-reinforced composite material in which a decrease in TgH / W with respect to TgDRY is inhibited, and which has excellent water resistance even in a severe environment, can be used over a long period, and exhibits high mechanical characteristics. [Solution] The epoxy resin composition comprises the following components (A) to (D), wherein the component (C) includes a chloride as an anion species. (A) an epoxy resin; (B) an acid anhydride; (C) a quaternary amine salt and / or a quaternary phosphonium salt; (D) core / shell rubber particles.

Described are a negative resist composition that can form a resist pattern with good resolution, and a method for producing a resist pattern using the negative resist composition. The negative resist composition contains a resin (A1) having a phenolic hydroxy group, an acid generator (B), a crosslinking agent (E), and a quencher (C). The acid generator (B) includes a compound (B4) having an amide skeleton. The method for producing a resist pattern uses the negative resist composition.

A terminal-fitted electric wire includes: a wire portion including a terminal fitting, an insulated electric wire including a conductor and an insulation covering, and an electrical connection portion in which the terminal fitting and the insulated electric wire are electrically connected to each other; a tube member covering the outer circumference of the insulation covering in a part along the insulated electric wire; and a resin coat covering a part of the wire portion which includes the electrical connection portion of the wire portion and is in contact with at least a part of an outer surface of the tube member. The tube member is formed as a single-layered cylinder including a crosslinked polyolefin resin, and an acid-modified resin in an amount 5-40 parts by mass of resin ingredients, and a thermoplastic elastomer in an amount of 20-40 parts by mass of the resin ingredients.

The application discloses a kind of high-temperature-resistant organic gold slurry, including resin acid gold, resin, organic solvent and organic metal additive, resin acid gold 20-30wt%, resin 10-20wt%, organic metal additive 1.5-3wt%, the mass ratio of organic chromium, organic bismuth, organic copper and organic yttrium in organic metal additive is 1.1:1.3:0.3:0.3;Organic yttrium prepared gold slurry has excellent high-temperature resistance and reduces cost.The method for preparing gold coating based on organic gold slurry can withstand higher annealing temperature, reduce the defects of gold coating, and maintain the stability of gold coating.The prepared gold coating has good adhesion and infrared reflection performance on the surface of quartz.The gold coating prepared based on organic yttrium can achieve the same high-temperature resistance as organic rhodium.The reflectivity of the obtained gold coating in the near-infrared region can reach 96%, which prolongs the service life of the coating while maintaining the optical performance.

The present invention provides a lithographic printing ink composition that emulsifies quickly and does not experience a decrease in torque after emulsification. [Solution] A lithographic printing ink composition comprising a pigment, calcium carbonate, binder resin, petroleum-based solvent, and vegetable oil, characterized in that it is (1) to (3) as described below. (1) Contains polypropylene polyol, and the polypropylene polyol content in the lithographic printing ink composition is 0.01 to 5.0 parts by weight. (2) The pigment contains a disazo-based yellow pigment, and the pigment content in the lithographic printing ink composition is 5 to 15% by mass. (3) The calcium carbonate has a primary particle size of 0.02 to 0.10 μm, and its surface is treated with rosin acid and / or resin acid / fatty acid, and the content of the calcium carbonate in the lithographic printing ink composition is 1 to 30% by mass.