4871 results about "Rosin" patented technology

Production of ester-based fuels such as biodiesel or jet fuel from renewable starting materials such as lignocellulosic material or algae is disclosed. Pulping and saccharification of the renewable starting materials produces carboxylic acids such as fatty acids or rosin acids, which are esterified via a gas sparged, slurry form of heterogeneous reactive distillation to yield ester-based fuels.

The invention is concerned with low rosin type halogen-free and cleaning-free flux using for lead-free solder paste, belonging to flux field. About the existing rosin type flux, the leftover after welding is high and the leavings with halogen has cauterization. The matter of this invention is 5 to 20 wt percent of organic acid activator, 10 to 29 wt percent of modified rosin, 1 to 10 wt percent of binder, 0.5 to 6 wt percent of stabilizer, 1 to 6 wt percent of surfactant, 1 to 8 wt percent of corrosion inhibitor, 1 to 10 wt percent of thickener, and the rest is solvent with high boiling point. The copper mirror after welding is not penetration, and this invention without halogen has high insulation resistance and good assistant jointing capability. The viscosity of matched solder paste is advisable to solve the high content of rosin in the flux and great smoke. The leftover after welding is colorless and transparent film and it dose not absorb water with the normal temperature without clearing to fit for the welding demand of common production.

The invention relates to a rosin cationic bitumen emulsifier. The rosin intermediate is reacted by the rosin and the polyethylene polyamine, then to condensate with the different types of the quaternary ammonium salt to get the emulsifier. The emulsifier can be used to produce the normal cationic emulsifying asphalt or the SBR modified emulsifying asphalt for the road priming oil and the felting oil. The character of the invention is to use the nature resin rosin as the material, so the cost has decreased and it meets the environment need. The emulsifying asphalt can reach the need of the standard of the China ministry of communications and the America ASTMD2397.

The invention relates to a lead free soldering clean free soldering flux with the mass percentage of organic acid activating agent 1. 5-3. 5%, surface active agent 0. 04-0. 6%, organic amine and derivant 2. 0-5. 0%, with the rest being film forming matter. The said organic acid could be one or more of the aliphatic acid mono acid or bi-acid, aromatic acid, or amino acid. The said surface active agent is one or more of the nonion surface active agent, and the said organic amine and the derivant being ethanediamine, tetramethylenediamine, diethyl ethanolamine and so on, with the said film forming material being diethyl ethanolamine or resin. The soldering flux does not have halogen, being environmental protective, good in welding, welding spot being full and luminous, without residue, no corrosion, high in isolation resistance.

Golf ball compositions including a rosin-modified polymeric composition including a conventional ionomer, acid copolymer, highly neutralized polymer, or other suitable polymer that has been modified with a rosin material to impart stiffness through increasing the flexural modulus of the material.

The invention aims to provide a thermosetting flux suitable for solder bonding of a semiconductor element and an electronic part and making solder bonding with a high bonding strength and a high heat resistant strength at a high temperature possible and a paste containing the flux and a non-lead type solder paste and with respect to the thermosetting flux, an epoxy resin, a hardening agent, and at least one of rosin derivatives having functional groups reactive on the epoxy resin and selected from maleic acid-modified rosin, a fumaric acid-modified rosin, and acrylic acid-modified rosin are used. The flux can be used in form of a solder paste while being mixed and kneaded with the non-lead type solder alloy powder.

The water soluble soldering flux specially for lead-free soldering material consists of boric acid and organic acid activator 5.0-10.0 wt%, non-ionic surfactant or cationic surfactant 0.1-1.0 wt%, co-solvent 8.0-20.0 wt%, filming agent 0.1-1.0 wt%, corrosion retardant 0.1-0.5 wt%, except deionized water. The compounding process includes the following steps: mixing co-solvent and partial deionized water, adding filming agent under stirring, adding the rest deionized water, activator and surfactant after dissolving, adding corrosion retardant while stirring to dissolve, stilling, and filtering to obtain the filtrate as the soldering flux. The water soluble soldering flux has excellent soldering assisting performance on lead-free soldering material, environment friendship and other advantages.

A liquid developer includes: toner particles containing a rosin resin; an insulating liquid containing an epoxy-modified compound in liquid form; and a cationic photopolymerization initiator.

The invention discloses a halogen-free cleaning-free rosin flux, and preparation and application thereof, and particularly relates to a flux suitable for surface mount lead-free welding paste, preparation of the flux and application of the flux. The flux comprises 20-50% (mass fraction, the same below) of rosin, 5-25% of film-forming agent, 30-50% of high boiling solvent, 3-8% of activator and 2-5% of thixotropic agent, and the flux does not contain any halogen. In order to control growth of interface IMC (intermediate compound) during welding, 0.3-1% of combined inhibitor is added. The welding paste prepared with the flux and lead-free tin-silver-copper powder has the advantages of excellent printing performance, fine weldability, less post-weld residue, thin and even welding spot interface IMC and excellent mechanical property, and is capable of meeting the requirement of high-end electronic products on packaging.

A primer coating is provided for use on polymeric substrates to enhance adhesion of liquid toner to the substrates for printing in an electrophotographic printing device. The primer coating is water-based and includes a dispersion of a copolymer of ethylene and acrylic or methacrylic acid, and a compatible adhesion enhancer selected from an aliphatic polyurethane dispersion, a hydrogenated hydrocarbon rosin or rosin ester dispersion, and an amorphous acrylic polymer dispersion. The coating may also include additives such as wetting agents, antiblocking agents, matting agents, and waxes. The primer coating may be applied to a variety of polymeric substrates including polypropylene, biaxially oriented polpypropylene, polyethylene terephthalate, and polyvinyl chloride.

The present invention relates to a composite water-proof material. It is made up by using (by weight portion) 20-70 portions of plant fibre, 10-60 portions of flyash and 5-40 portions of adhesive through the processes of mixing them, die-pressing and polymerization. The described adhesive is formed from maleic anhydride, phthalic anhydride, polyalcohol, styrene or mixture of their homologous compounds, also can include trimeric cyanamide, acrylic acid or rosin and dicyclopentadiene. Its raw material composition also can include 10-40 portions of new and old plastics. Said plate material has strong strength and good water-proof property, so that it has extensive application range.

This invention is related to modified alkylphenol aldehyde resins and a method for preparing them from the reactions of alkylphenols, aldehydes, amines, rosins and fatty acids. When used in rubber compounds, these modified alkylphenol aldehyde resins provide much improved tack properties.

The invention discloses a laboratory model testing device for tunnel excavation. The laboratory model testing device comprises a model box, a tunnel structure model, a loading device and an excavation device, wherein the model box is composed of a floor trough and an organic glass plate, the organic glass plate is fixed on the opening surface of the floor trough through a groove; model testing fillers are padded in the model box; the tunnel structure model is made of rosin materials in a casting manner according to the ratio of similitude of an actual tunnel section, and is arranged in the middle of the model box; the loading device mainly comprises a counter-force beam, a steel plate and a hydraulic jack, and is arranged on the top of the model box; the excavation device mainly comprises a heating wire, a lead and a power supply switch, wherein the heating wire is arranged in the tunnel structure model. Due to the adoption of the testing device, the shape and size simulation in the tunnel excavation process can be performed conveniently, an excavation boundary can be well matched with a geometric boundary designed in advanced, the simulated tunnel excavation can be relatively well matched with an actual engineering; the testing device is simple in structure, convenient to operate, low in cost, and convenient to develop and apply.

The invention discloses a hot melt adhesive used for automotive interiors, and a preparation method of the hot melt adhesive. The hot melt adhesive used for automotive interiors is characterized by comprising a proportion of paraffin, polyethylene wax, a thermoplastic elastic body SBS, random polyolefin, polyethylene vinyl acetate, C5 petroleum resin, rosin pentaerythritol ester, antioxygen, coupling agent and filler. The preparation method comprising the following steps: heating a stirring kettle to 140 to 160 DEG C, and adding the paraffin and the polyethylene wax; adding the thermoplastic elastic body SBS, vacuum-pumping and keeping warm, adding HMW(high molecular weight) random polyolefin I, HMW random polyolefin II and the antioxygen; adding the coupling agent and the filler; cooling, and adding polyethylene vinyl acetate I and polyethylene vinyl acetate II; cooling and adding the C5 petroleum resin; adding the rosin pentaerythritol ester and keeping warm; and emptying the stirring kettle, pressurizing, discharging and forming. No pollution or poison is produced during the production process of the hot melt adhesive; and the hot melt adhesive has the advantages of high adhesion strength, long opening time, good temperature resistance, strong ageing resistance, good tenacity, strong waterproofness and the like.

The invention relates to a novel environment-friendly soldering flux for low-silver SnAgCu unleaded soldering paste, belonging to the field of unleaded solder soldering flux. The invention aims at providing a soldering flux suitable for the low-silver SnAgCu unleaded soldering paste. The soldering flux comprises the following components: 5.0-13.0% of activator, 32.0-41.0% of solvent, 0.8-5.0% of corrosion inhibitors, 1.0-6.0% of thixotropic agent, 2.0 -9.0% of paste forming agent, 0.3-2.5% of stabilizer, 0.5-5.0% of surfactant and 35.0-48.0% of modified rosin. The activator is the compound of a plurality of organic acids, has wide boiling point distribution space, can achieve good activation effect in the whole soldering process, can be mostly volatilized, sublimated or decomposed at the brazing temperature and ensures no corrosion after the soldering. The soldering flux has the advantages of no halogen content, good soldering aiding property, few and hard-film-shaped residuals after the soldering, high insulation resistance, and the like.

The invention relates to a paint used in large casting element and relative production, wherein said paint is alcohol-base zircon powder casting paint, which contains zircon at 62-75%, lithium-base at alta-mud 1-3%, deionized water at 1-3%, modified almasilate at 1-3%, nanometer clay at 0.15-0.8%, alumind at 0.020-0.08%, soluble polyester resin at 0.2-1.2%, polyvinyl butyral (PVB) at 0.1-0.8%, abietyl at 0.6-3%, industrial alcohol at 15-25%, alcohol isopropylicum at 1-5%, and aromatic solvent oil at 150#1-5%. The inventive product has high fire resistance, etc.

The invention discloses high-permeability sand-burning-preventing paint for casting and a preparation method thereof. The high-permeability sand-burning-preventing paint is prepared from the following raw materials: refractory aggregate, a binding agent, an activating agent, a thickening agent, a suspending agent, a defoaming agent and a carrier, wherein the masses of the binding agent, the activating agent, the thickening agent, the suspending agent, the defoaming agent and the carrier respectively account for 0.5-2.5 percent, 0.01-0.05 percent, 0.1-0.5 percent, 1.5-5.0 percent, 0.01-0.1 percent and 40-220 percent of the mass of the refractory aggregate; the refractory aggregate is a mixture of one or two of zircon powder and chromite fines in any proportion; the binding agent is phenolic resin or a mixture of the phenolic resin and one or more than two of oxidized rosin and ethyl silicate; the activating agent is alkylphenol ethoxylates; the carrier is ethanol; the thickening agent is polyvinyl butyral; the suspending agent is lithium bentonite; and the defoaming agent is normal butanol.

The present invention provides a master batch for polyester resins that does not need to be dried prior to use. The master batch according to the invention includes an additive package dispersed in a carrier. The additive package includes one or more colorants, light stabilizers, heat stabilizers, flame retardants, antioxidants, lubricants, anti-stats, biocides, fillers, and process aids. The carrier includes from about 10 to about 25 percent by weight of one or more polyhydric alcohol esters of wood and/or gum rosin, from about 5 to about 35 percent by weight of one or more core-shell polymers, and from about 25 to about 70 percent by weight of one or more thermoplastic polyesters compatible with the bulk polyester molding resins.The present invention also provides a method of forming a polyester article. The method includes letting down a master batch according to the invention into a polyester resin, heating the master batch and the polyester resin to form a melt, and processing the melt to form the polyester article. The method can be used to form a variety of polyester articles such as, for example, blow molded bottles, extrusion blow molded bottles, injection molded bottles, extruded film sheets, and drawn fibers.

A single fluid water-based offset lithographic news ink comprising water; a macromolecular resin binder comprised of a resin soluble in water regardless of the pH of the water, a rosin salt resin soluble in water at pH ranging from 7.5 to 10 and an aqueous emulsion polymer; pigment; a water dispersible soy bean based polymer; and a hydroxyethylehtylene urea re-wetting agent.

A flux without halogen, rosin and washing for Pb-free solder contains activating agent (8.0-15.0 Wt %), cosolvent (28-40), filming agent (0.1-1.0), corrosion retardant (0.1-0.5) and the solvent and deionized water (rest).

A pressure-sensitive adhesive product contains a substrate having formed on at least one surface thereof a pressure-sensitive adhesive layer, wherein the substrate is formed from a styrene-based resin composition and the pressure-sensitive adhesive layer is formed from an acrylic pressure-sensitive adhesive containing an acrylic polymer, a liquid paraffin, and a rosin-based tackifying resin. In the acrylic pressure-sensitive adhesive, the ratio of the liquid paraffin is preferably 6 to 50 parts by weight based on 100 parts by weight of the acrylic polymer and the ratio of the rosin-based tackifying resin is preferably 1 to 30 parts by weight based on 100 parts by weight of the acrylic polymer. The liquid paraffin may have a number-average molecular weight of 300 to 500 and may have a dynamic viscosity at 37.8° C. of 6 to 80 mm²/second.

The invention relates to a slow controlled release diatomite fertilizer which is characterized in that 16 to 20 portions of urea, 12 to 17 portions of diammonium phosphate, 10 to 15 portions of potassium chloride and 8 to 12 portions of diatomite are put in a pulverizer to be crushed and sieved by a 80-mesh sieve and then are put in a granulator to be granulated by a rotary drum; 50 to 100ml water is added slowly and uniformly to be used as coupling agent during the granulating process; after the granulation, 100 to 120ml coating material of polyvinyl alcohol is sprayed to rotating fertilizer particles by a high-pressure spray gun uniformly in small amount; after coating, rosin and olefin are poured into the rotary drum based on the proportion of 1 to 2 to be melted and made into sealant; the temperature is kept between 70 DEG C to 80 DEG C; and finally, the coated fertilizer is poured into the rotary drum to be sealed. The invention can separate the soil from the fertilizer, avoids the direct contact of the soil and the fertilizer and controls the release of nutrient; the slow controlled release diatomite fertilizer has the functions of preserving moisture and fertility, prolonging the fertilizer effect by slow release and improving the soil; and the slow controlled release diatomite fertilizer causes no pollution to the soil.

The invention relates to a cion treating and preserving method. Annual shoots or secondary shoots of over 0.3cm thickness that grow well and are free from damage by disease and insect are selected and cut off 0.5cm above sprout; cut-off shoots are sterilized and socked in 50ppm of solution of growth regulating agent for green plants for 2h, taken out and dried by airing, then mixed with commercial wax of 54 degrees, refined lard and colophony, ratio of which is 1:0.5:0.2, and heated to 100-200 DEG C; then the cion acquired is dipped into wax, wrapped by white thin film and put into a refrigerator for 1-6 months at the temperature of 0 DEG C to 4 DEG C; the cion is taken out, heated and transplanted as by a normal method in due time for grafting. Cion preservation: wax-sealed cion is stored at the temperature of 0 DEG C to 4 DEG C for further use; grafting is carried out when tree sap flows. The invention can prolong the preservation time of the cion and improve grafting survival rate; branches qualified for grating are treated in combination with winter pruning, and are taken out and grafted in due time.

A process for producing light color rosins ester resin, preferably based on tall rosin, is described. The process is conducted in the presence of less than 10 weight % of an acid functional organic compound and avoids the need for use of a stoichiometric excess of rosin acid, or a stoichiometric excess of polyol hydroxyl groups. The process allows for the use of lower colored or darker tall oil rosin in the production of low color rosin esters.

The invention discloses a rosinyl bis-quaternary ammonium surfactant, the general molecular formula of which is as follows. In the formula, R is a rosinyl ricyclic diterpene structure, X is Br or I, and n is larger than or equal to 1 and smaller than or equal to 10. The invention also discloses a method for preparing the compound: firstly, dehydroabietic acid or disproportionated rosin is adopted to prepare rosinyl tertiary amine, and then the rosinyl tertiary amine and saturated dihalide are prepared into the rosinyl bis-quaternary ammonium surfactant through quaternization. The synthesis of the rosinyl tertiary amine comprises the following steps: the dehydroabietic acid or the disproportionated rosin is converted into active acyl chloride intermediate, and then the acyl chloride intermediate and N,N-dimethyl ethanolamine are prepared into the rosinyl tertiary amine in the presence of the triethylamine which is used as the acid-binding agent. The rosinyl tertiary amine and the saturated dihalide are reacted in the solvent isopropyl alcohol, and then vacuum drying is performed after filtration. The prepared surface active agent has good surface activity performance; the raw material is inexpensive and easy to obtain, and can be biodegraded; the synthetic method is assisted with microwave, the reaction time is short, and the product purity is high.

The invention discloses an automatic tin soldering machine. The automatic tin soldering machine comprises a machine base, a soldering tin wire passing mechanism, a control box, an automatic feeding mechanism, a soldering tin assembly mechanism, a soldering tin testing mechanism, a rosin infiltration mechanism, a tin soldering mechanism and a sliding table mechanism, wherein the automatic feeding mechanism, the soldering tin assembly mechanism, the soldering tin testing mechanism, the rosin infiltration mechanism, the tin soldering mechanism and the sliding table mechanism are connected with the control box; the automatic feeding mechanism is connected with the soldering tin assembly mechanism, and the soldering tin wire passing mechanism is connected with the sliding table mechanism; the control box is arranged on the front end face of the machine base; the automatic feeding mechanism, the soldering tin assembly mechanism, the soldering tin testing mechanism, the soldering tin wire passing mechanism and the tin soldering mechanism are sequentially arranged at the top of the machine base from left to right; the sliding table mechanism is arranged at the side edge of the soldering tin wire passing mechanism, a wire material is sequentially conveyed to the soldering tin testing mechanism, the rosin infiltration mechanism and the tin soldering mechanism by the sliding table mechanism after the wire material is conveyed to the soldering tin assembly mechanism by the automatic feeding mechanism, so as to be subjected to an automatic tin soldering process, and automatic discharging is realized. According to the automatic tin soldering machine, mechanical automation for charging, processing and the final discharging can be realized, the production efficiency is increased greatly, and the product quality can be guaranteed.

The present invention relates to a medium-and-high-activity, low-solid-content halideless water-based type wash-free soldering flux which is applicable to the spraying process, the foaming process and the dipping process. The soldering flux is composed of the following weight proportions of substances: 1 percent to 4 percent of promoting agent, 0.5 percent to 1.5 percent of filmerformer, 20 percent to 40 percent of latent solvent, 0.1 percent to 2 percent of wetting agent and 0.01 percent to 0.1 percent of corrosion inhibitor, and the rest is deionized water. The soldering flux of the present invention does not contain halogen and colophony; soldering material can have good spreadability; a PCB board can have good solder permeability; soldering spots are plump and shiny; the surface of the soldered PCB board has no visible residues and is not eroded, and the surface insulation resistance is high; under the normal temperature, the soldering flux does not absorb moisture and cannot be decomposed, and a washing process can be omitted. Since the deionized water is used as solvent, the soldering flux does not contain any volatile organic substance, so the soldering flux cannot be ignited and does not explode, and therefore the soldering flux is environment-friendly. The soldering flux is applicable to the wave-soldering or dip-soldering production line of various printed boards in the fields of communication, aviation, computers, etc.

The invention discloses a preparation method of rosin-based waterborne polyurethane, which is characterized in that only rosin-based polyester polyol or the compounded rosin-based polyester polyol and regular olyether or polyester polyol is dehydrated in a vacuum way for 2-3 hours at the temperature of 100-120 DEG C, vulcabond and catalyst are added after cooling to react for 1-3 hour(s) at the temperature of 60-90 DEG C, hydrophilic monomer is added to react for 1-2 hours at the temperature of 60-90 DEG C, organic solvent and micromolecule chain extendor are added to react for 3-6 hours at the temperature of 0-70 DEG C, and salt forming agent is added after cooling, is dispersed in water after being stirred dramatically, and finally the solvent is removed in a vacuum way to obtain the rosin-based waterborne polyurethane. The invention has the advantages of high glossiness, big hardness, good heat and water resisting properties, and the like.

The invention relates to a method to produce equivalent material of iron crystal sand cemented rock soil that uses iron ore, barite powder and quartz sand as main aggregate, uses solution that is made up from rosin and alcohol as cementing agent, and uses gesso as regulator. Whisking the iron ore, barite powder and quartz sand, gesso, resin-alcohol solution to equal, pouring into steel mould, pressing the mixture, opening the mould, drying for 2-3 days, the invention could be gained. The invention has the advantages of high unit weight, large range of mechanics parameter, easy to process and low cost.

The invention provides a method and a device for measuring the concentration of coal dust in a mine based on data fusion. The method comprises the steps of measuring the concentration of particles with the particle size a which is greater than or equal to 5 microns and the concentration of small particles with the particle size a which is less than or equal to 5 microns by collecting the scattering light energy near the coal dust which forwards +/- 8 degrees and backs +/- 180 degrees; preprocessing light signals; setting the number of nerve cells on a hidden layer of a nerve network; performing nerve network training identification on collected sample information to be treated so as to gradually reduce an error to be within a required range; correcting nerve network data fusion model parameters acquired by multiple layers of forward nerve networks BP according to Rosin-Rammler function distribution of the particle size of the coal dust; calculating the concentration of the coal dust in the space by inputting the concentration value of the large particles and the concentration value of the small particles into a corrected nerve network data fusion model. The method and the device realize reasonable dust measurement and control on a coal mine and have an important significance for control over the pneumoconiosis possibility of workers.