734results about "Natural resin chemical modification" patented technology

This invention is directed to a method of preparing a natural resin by liquefying wood, bark, forest residues, wood industry residues, or other biomass using rapid destructive distillation (fast pyrolysis). Fast pyrolysis produces both vapors and char from biomass, and following removal of the char from the product vapors, a liquid pitch product is recovered and processed by distillation, evaporation, or a combination thereof, in order to obtain a natural resin which may be in either liquid or solid form. The natural resin comprises a total phenolic content from about 30% to about 80% (w/w), and is a highly-reactive ligninic compound that has been found to be suitable for use within resin formulations without requiring any further extraction or fractionation procedures. Resins comprising up to 60% natural resin have been prepared and tested in board production and found to exhibit similar properties associated with commercially available resins. The natural resin may substitute for phenol, or for both phenol and formaldehyde within phenol-containing resins. Similarly, the natural resin can replace a substantial part of the components within urea-containing resins.

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.

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.

A one component adhesive composition is provided, which can be formulated from substantially or totally bio-based, renewable raw materials. Such adhesives can be formulated to have high strength and/or low or substantially no VOC emissions. This can be achieved by utilizing polymers that are derived or extracted from renewable plant materials such as soybeans, corn, sunflowers, wheat, etc. Adhesive compositions in accordance with the invention can include oils. The composition preferably contains bio-based oils only, but need not be completely free of fossil fuel or synthetic based oils. It should also include drying oils and/or similarly acting polymers, co-polymers, and fatty acids. Plasticizers, such as hydrogen oxide, derived from renewable sources are utilized to impart performance properties to the formulated adhesive. Metal napthanates can be used to catalyze the drying and/or curing speed when the adhesive composition is applied to a substrate.

Rosin esters having suitable color, color stability and/or odor to make them useful for non-woven applications, to non-woven products made from and/or comprising rosin esters, and to methods of making and using such rosin esters and products.

The invention discloses an acrylic acid rosin and epoxy resin prepolymer and a preparation method thereof. Acrylic acid rosin is molten, diglycidyl ether is added to the molten acrylic acid rosin and reacts with the same under the action of esterification catalyst at the reaction temperature of 120-200 DEG C until the acid number of the reaction system is lower than 10mgKOH/g, the product of reaction is cooled and the acrylic acid rosin and epoxy resin prepolymer is obtained. The acrylic acid rosin and epoxy resin prepolymer is prepared by cheap and available natural products, has excellent mechanical property and uvioresistant property, is especially suitable to manufacture outdoor weather-resisting electric engineering insulating material and can be used as weather-resisting epoxy adhesive, epoxy resin coating, hydrated epoxy coating and the like.

The invention discloses a preparation method of low-temperature resistant rosin thickening resin, which comprises the following steps of: under the protection of inert gas, melting rosin, and reaction the melted rosin with polyalcohol for 4-24h at the temperature of 200-290 DEG C under the action of catalyst; discharging to obtain polyalcohol modified abietate; and then, under the protection of inert gas, reacting the obtained polyalcohol modified abietate with higher fatty acid at the temperature of 200-290 DEG C for 4-24h, and discharging to obtain the rosin thickening resin; or under the protection of inert gas, melting the rosin, and then adding catalyst, the polyalcohol and the higher fatty acid into the melted rosin, carrying out reaction for 4-24h at the temperature of 200-290 DEG C, and discharging to obtain the rosin thickening resin. The rosin thickening resin prepared by the method is low in softening point and viscosity and higher in cold resistance. Meanwhile, the invention also discloses the low-temperature resistant rosin thickening resin prepared by the method disclosed by the invention, and the usage of the low-temperature resistant rosin thickening resin in preparation of a hot melt pressure sensitive adhesive.

The invention discloses a preparation method of rosin viscosified resin, and the preparation method comprises the following steps of: (1) adding rosin into a distillation flask, vacuumizing, heating and distilling at the temperature of 240-280 DEG C, so that part of rosin is distilled; and (2) adding the rest rosin in the distillation flask into a reaction flask, adding a catalyst and polyalcohol into the reaction flask under the inert gas protection condition, and reacting for 4-24 hours at the temperature of 240-290 DEG C, so that the rosin viscosified resin is obtained, wherein the rosin contains pinus latteri acid. According to the preparation method disclosed by the invention, the pinus latteri acid contained in the rosin component is utilized, and the pinus latteri acid is rosin binary acid, so that the molecular structure of the resin is increased and the aim of increasing the softening point of the rosin viscosified resin is achieved. Meanwhile, the invention also provides rosin viscosified resin prepared by adopting the preparation method disclosed by the invention, and the rosin viscosified resin has higher softening point and good compatibility with EVA (ethylene vinyl acetate) elastomer and can be better used for preparing hot melt glue.

The invention discloses a preparation method of a composite ZnO-mesoporous silica nanomaterial, namely a solvothermal in situ substitution method. The preparation method comprises the following steps of: uniformly mixing silicon-based molecular sieve powder, a ZnO precursor, a doping element and an organic solvent, adding the mixture into a high-pressure reaction kettle, and introducing a shielding gas to the reaction kettle for reaction; filtering the reaction mixture, washing, and drying to obtain dry powder; and heating and calcining the dry powder to obtain the composite ZnO-mesoporous silica nanomaterial. The composite ZnO-mesoporous silica nanomaterial prepared by the preparation method disclosed by the invention has the advantages of uniform ZnO loading, stable properties, excellent optical properties and catalytic properties and strong SHG (second harmonic generation) and TPL (two-photon luminescence) optical properties when used as an excellent catalyst for organic ester synthesis or as a laser nonlinear optical material, and is suitable for being prepared into a purple light-emitting material or a functional polymer additive. The preparation method disclosed by the invention has the advantages of wide and available raw materials, simplicity of operation and advantageous production cost.

The invention relates to a production method of abietic maleic anhydride resin, comprising the following two reaction steps of: 1, carrying out addition reaction on abietyl and maleic anhydride to generate an abietic maleic anhydride addition product; and 2, carrying out esterification reaction on the abietic maleic anhydride addition product and pentaerythritol to generate the abietic maleic anhydride resin. The production method is easy and convenient to operate, has the advantages of large temperature control range, high operability, small investment and stable product quality and is a method suitable for industrialized production; in the production method, appropriate process conditions including raw material proportion, reaction temperature, reaction time, catalysts, and the like, are adopted, thereby the acid value and the molecular weight range of a resin product can be effectively controlled; in addition, the resin product obtained with the production method has higher acid value of 150-170 mg KOH/g, reasonable softening point at 140-155 DEG C and good water solubility and is suitable for producing water-based ink, and a formed coating film has toughness and better after-tackiness resistance, water resistance and alkali resistance.

The invention relates to a method for preparing colorless hydrogenated rosin ester resin. Rosin ester obtained by esterifying rosin purified through distillation is used as a raw material, catalytic hydrogenation is carried out under the action of a solvent and a high activity catalyst, the solvent is separated through distillation, and the colorless hydrogenated rosin ester resin is obtained. The product comprises the following key indexes of: no more than 100 of Hasson color number, no more than 20 mg/g of acid value, 80 to 110 DEG C of softening point and 0 to 15 gI2/100g of iodine value. The product can substitute a colorless hydrogenated petroleum resin product to be applied to the high-end adhesive. The method for preparing the colorless hydrogenated rosin ester resin is simple and easy, and the prepared product has the advantages of shadow color, lower iodine value, higher stability and lower preparation cost when being compared with the traditional products.

Methods for microfabricating composite materials and composite materials prepared there from are described herein. The sacrificial material can be etched or patterned to create a two-dimensional and/or three-dimensional sacrificial material structure. The resulting sacrificial material structure can be embedded in one or more embedding materials. The sacrificial material(s) are materials whose solubility can be altered by application of a stimulus typically pH, and/or temperature, light, pH, pressure, presence of absence of ions, and combinations thereof. The embedding materials can contain one or more additives that modify one or more properties of the embedding materials, such as degradation properties, porosity, mechanical properties, viscosity, conductive properties, and combinations thereof. The composite materials can be used in tissue engineering, drug screening, toxin detection, drug delivery, filtrations, bioseparations, and as microfluidic devices for fluid mixing and structural repair.

The invention relates to modified rosin resin and discloses modified rosin tackifying resin as well as a preparation method and application thereof. The preparation method comprises the following steps of: uniformly mixing rosin or rosin derivatives, monoterpene compounds, dicyclopentadiene fractions and catalysts in an autoclave; replacing air in the autoclave by use of nitrogen or carbon dioxide; reacting the mixture at a pressure of 0.2-0.6 Mpa and at 170-290 DEG C for 1 hour to 30 hours; and decompressing after the reaction, and removing low-boiling-point substances, thus obtaining the modified rosin tackifying resin, or adding an antioxidant stabilizer into the mixture at 200-230 DEG C, thus obtaining the modified rosin tackifying resin with higher quality. The softening point of the modified rosin tackifying resin ranges from 80 DEG C to 110 DEG C, the acid value of the tackifying resin is 15-70mg KOH per gram, and the color of the tackifying resin is less than No.6 Ghana color. The modified rosin tackifying resin can be widely applied to the field of tackifiers, coating paint, printing ink and the like, and especially can be applied to the field of metallocene catalysis polyolefin tackifiers.

The invention provides a compound catalysis used for preparing pale rosin ester, reducing the production cost and simplifying production technique as well as an application thereof. The compound catalysis comprises components of the following mass ratios: 1 to 200 portions of hypophosphorous acid and/or hypophosphite, 1 to 100 portions of sulfur-containing metal salt and 2 to 100 portions of organic disproportionation catalyst. The compound catalysis of the invention can prepare the pale rosin ester using common resin as the raw material to produce the pale rosin ester with solid garner color no larger than 2.

The invention discloses a rosin epoxy resin for the solidification of polyester powdery paints. The rosin epoxy resin is a compound with the structure of formula I or formula II. In the formula I or the formula II, R is an aliphatic chain segment or an aromatic chain segment. The invention also discloses a preparation method of the rosin epoxy resin. The preparation method comprises the following steps: 1, treating rosin as a raw material, adding with a catalyst I and maleic anhydride, and carrying out a Diels-Alder reaction to obtain maleopimaric acid anhydride (MPA); 2, reacting a compound containing amino and carboxyl with the MPA to prepare a rosin polyprotic acid; and 3, carrying out a series of chemical reactions on the rosin polyprotic acid, an epoxy alkylogen, a catalyst II, and an alkali to prepare the rosin epoxy resin. The rosin epoxy resin of the invention which has the advantages of environmentally friendly preparation technology, and low manufacture cost is mainly used for solidifying the polyester powdery paints.

The invention relates to a method for producing water-white hydrogenated rosin, which comprises the following steps: using light color refined rosin obtained after purifying the rosin as hydrogenation raw materials, using a solvent for preparing solution, carrying out catalytic hydrogenation, then, separating out the solvent through distillation, and obtaining the water-white hydrogenated rosin. When the method provided by the invention is adopted, the water-white hydrogenated rosin with light color (the Lovibond color number of the yellow color is 0.3 to 1.0, and the Lovibond color number of the red color is 0.2 to 0.3), low iodine value and low abietic acid content can be obtained. Compared with the water-white hydrogenated rosin produced by a traditional method, the water-white hydrogenated rosin produced by the method provided by the invention has the advantages of lighter color, higher hydrogenation degree, better stability and lower cost, and the application value of products can be improved when the water-white hydrogenated rosin is applied to aspects such as electronics, paint, bonding agents, dyestuff and the like.

Besides sulfur component of antioxidant, the invention provides polymerized abietate, hydrogenising polymerized abietate with the sulfur component content below 100 ppm, tackifier comprising the polymerized abietate and hydrogenising polymerized abietate, tackifier resin emulision obtained by emulsifying the tackifier, agglutinant/adhesive composition comprising the tackifier; using the drainage agglutinant/adhesive composition comprising the tackifier liquid is able to obtain the polymerized rosin and polymerized abietate which has excellent hue and storage stability (good thermal stability) under heating so as to execute hydrogenation after storing for a long time and is able to hydrogenate (cause the color intensity) the polymerized rosin and polymerized abietate without problem, and obtain the hydrogenising polymerized rosin and polymerized abietate with excellent hue and storage stability, welding paste for lead-free soldering material with excellent hue, and agglutinant/adhesive composition with excellent hue and storage stability and drainage agglutinant/adhesive composition.

The invention discloses a rosin-based CO2/N2 response type polymerizable surfactant. Maleopimaric acid reacts with glycidyl methacrylate (GMA) for introducing polymerizable monomers, and then an imidization reaction is carried out with N,N-dimethyl-1,3-propane diamine for introducing tertiary amine groups capable of responding to CO2. The surfactant has a response property on CO2/N2, and after CO2is introduced, a water solution is weakly acidic, so that tertiary amine is protonated to form a tertiary amine salt and then is positively charged to become a form of a water-soluble cation; and after N2 is introduced to drive CO2, the positively charged tertiary amine salt is deprotonated to be recovered to an original state of a water-insoluble tertiary amine, and good response reversibility is achieved. The invention also discloses emulsification performance and dispersion performance of the surfactant, a Pickering emulsion and carbon nano tube dispersion liquid prepared by using the surfactant also have good responsiveness to the CO2/N2, and end-group double bonds can be used for preparing a high-molecular surfactant by a polymerization reaction.

The invention discloses rosin polyester polyol for flame-retardant rigid polyurethane foam plastic and a preparation method and application thereof. The flame-retardant rosin polyester polyol is prepared by performing esterification reaction on rosin binary acid or rosin ternary acid and small-molecular flame-retardant polyol. The prepared flame-retardant rosin polyester polyol and general polyether glycol and an isocyanate compound are foamed to obtain the flame-retardant rosin-based rigid polyurethane foam plastic in the presence of other auxiliary agents. As the flame-retardant rosin polyester polyol contains a rosin phenanthrene ring rigid structure and a certain amount of flame-retardant nitrogen and phosphorus elements, when the flame-retardant rosin polyester polyol is used in the flame-retardant rigid polyurethane foam plastic, the flame-retardant rigid polyurethane foam plastic has higher thermal stability and flame retardancy and high compressive strength, has an oxygen index of 28 to 31 percent and is applicable to building, heat preservation and special occasions.

The invention provides a polymerized colophony diglycidyl epoxy resin and a preparation method thereof. The epoxy resin comes from natural reproducible resource, molecules of the epoxy resin are provided with condensed ring rigid structure, and solidified products of the epoxy resin can be used for replacing present epoxy resin materials and the invention provided with excellent ultraviolet radiation resistance capacity. The preparation method is that the polymerized colophony and epichlorohydrin are stirred and heated and added with a catalyzer for reaction; after the reaction is finished, solvent and sodium hydroxide are added in sequence for reaction, then filtrated; the filtrate is washed until no halogen ion exists and then dried and decompressed to remove the solvent and obtain products. The invention further expands the using range of colophony and exploits a new source and variety of epoxy resin material. The polymerized colophony diglycidyl epoxy resin prepared by the invention has high epoxy value, comparatively fairer color and luster and better heat resistance. The molecule of the polymerized colophony diglycidyl epoxy resin also has a benzene ring structure; therefore, the solidified products thereof are provided with strong ultraviolet radiation resistance capacity, which is the characteristic of cycloaliphatic polymers.

The present invention relates to terpene derivative compounds and rosins and sizing compositions comprising such compounds. Compounds of Formula (I) are disclosed in addition to rosins and sizing compositions comprising compounds of Formula (I). Fiber glass strands comprising a plurality of glass fibers at least partially coated with sizing compositions comprising compounds of Formula (I) are also disclosed.

The invention discloses a method for synthesizing rosin or allyl ester which is rosin derivative, which comprises following steps: dissolving one of the rosin or the rosin derivative in aprotic solvent, adding acylate-chloridized agent, heating to enable reaction temperature to be in 0-85 DEG C, reacting for 0.5-5 hours, acylate-chlorizating carboxy group in the rosin or the rosin derivative, adding acid binding agent, polymerization inhibitor and allyl alcohol into the reaction product of the first step, reacting under 10-80 DEG C for 2-5 hours, removing the aprotic solvent, and obtaining the rosin or the rosin derivative, namely, allyl ester, wherein the using amount of the acid binding agent is 100-150% of the molar weight of carboxy group in the rosin or the rosin derivative and the using amount of the polymerization inhibitor is 1% of the allyl alcohol. Synthetical rosin or rosin derivative, namely, allyl ester, can generate radical polymerization and can be applied in the fields of coating material, cementing compound, printing ink, paper making and the like. The method has high technical efficiency and good product stability.

The invention discloses a rosin-based emulsifier and a preparation method and application thereof. The rosin-based emulsifier having the following structural formula is prepared by the steps of reaction between rosin and octanol, addition reaction with acrylic acid, condensation reaction with polyethylene glycol, esterification with maleic anhydride and conjugated reaction with sodium bisulfite. The rosin-based emulsifier prepared by the invention has little effect on the performance of a rosin ester emulsion, can emulsify rosin ester directly without remixing with other surfactants and the rosin ester emulsion prepared has the advantages of small particle size, stable storage and good performance.

The invention discloses a preparation method of high-viscosity rosin resin which reaches higher viscosity under the condition of a lower softening point. The high-viscosity rosin resin comprises the following raw materials by weight percent: 85-86 percent of rosin, 2.0-3.0 percent of fumaric acid and 12-13 percent of pentaerythritol. The preparation method comprises the following steps: dissolvingthe rosin and then sucking the rosin into a reaction kettle; cooling to 190 DEG C to 200 DEG C; adding the fumaric acid; reacting in a heat preservation mode; when the softening point reaches 90 DEGC to 95 DEG C, adding the pentaerythritol; heating to 275 DEG C to 280 DEG C; continuing reaction; and when the acid value is smaller than or equal to 16 mg/g and the softening point reaches 110 DEG Cto 115 DEG C, performing dealcoholization and granulation to obtain a finished product. The rosin resin prepared by the preparation method can be conveniently applied to adhesives, coatings, printingink and polyamide resin products.