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528 results about "Ricinoleic acid" patented technology

Ricinoleic acid, formally called 12-hydroxy-9-cis-octadecenoic acid is a fatty acid. It is an unsaturated omega-9 fatty acid and a hydroxy acid. It is a major component of the seed oil obtained from mature Castor plant (Ricinus communis L., Euphorbiaceae) seeds or in sclerotium of ergot (Claviceps purpurea Tul., Clavicipitaceae). About 90% of the fatty acid content in castor oil is the triglyceride formed from ricinoleic acid.

Glass fiber reinforced polypropylene composite material with low odor and preparation method thereof

The invention discloses a glass fiber reinforced polypropylene composite material with low odor and a preparation method thereof. The glass fiber reinforced polypropylene composite material comprises the following components: 32-91% of polypropylene resin, 5-50% of glass fiber, 2-8% of compatilizer, 1-6% of odor inhibitor and 1-4% of other auxiliary agent. The reinforced polypropylene material with low odor is prepared by fusing, extruding and granulating the components through a double screw extruder under the temperature control condition of 220-240 DEG C. The odor inhibitor comprises 30-50% of ricinoleic acid zinc, 20-40% of metal oxide and 10-30% of a clay mineral system. The odor of the glass fiber reinforced polypropylene composite material can be inhibited through combining a physical method and a chemical method. The glass fiber reinforced polypropylene composite material prepared by the method has excellent odor performance; the odor level can be reduced below level 3; the physical property of the glass fiber reinforced polypropylene composite material per se is not influenced after the odor inhibitor is added; and the application field of the glass fiber reinforced polypropylene material in vehicle interior trim parts and a part of home appliance parts can be widened.
Owner:CHENGDU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD +3

Castor oil-based hydrophilic chain extender as well as preparation method and application thereof

The invention discloses a castor oil-based hydrophilic chain extender as well as a preparation method and application thereof. According to the castor oil-based hydrophilic chain extender, starting from castor oil, one of the renewable resources, a hydroxyl group is introduced by mercapto group-ene light click reaction to obtain an intermediate, and then a carboxyl group is generated through hydrolysis reaction of an ester group (or ricinoleic acid is generated through ester hydrolysis reaction of castor oil first, and then the hydroxyl group is introduced by mercapto group-ene light click reaction), the hydrophilic chain extender containing at least two hydroxyl groups and a carboxyl group is prepared, and the hydrophilic chain extender is applied to preparation of anionic aqueous polyurethane emulsion. According to the castor oil-based hydrophilic chain extender as well as the preparation method and the application thereof, the castor oil is applied to hydrophilic chain extender rawmaterials, has positive reference value for broadening application and increasing added value of natural fat products and also plays a positive role in reducing or replacing an environment problem caused by the use of petroleum non-renewable resources. The castor oil-based hydrophilic chain extender prepared by the invention is liquid at normal temperature, a contact area with other raw materialsduring a reaction is larger, the mixing is more uniform and the reaction speed is higher.
Owner:SOUTH CHINA AGRI UNIV

Demoulding agent used for precast concrete component and preparation method thereof

The invention discloses a demoulding agent used for precast concrete components. The demoulding agent includes following raw materials, by weight, 10-30 parts of an unsaturated fatty acid, 5-20 parts of an oily density adjusting agent and an aqueous density adjusting agent, 1-5 parts of an oily emulsifier, 1-5 parts of an aqueous emulsifier, 0.1-4 parts of an emulsification additive, 0.1-2 parts of a defoaming agent, 0.1-2 parts of an anti-rust agent, 1-5 parts of a settling-resistant and thickening thixotropic agent and 40-65 parts of water. The unsaturated fatty acid is oleinic acid, palmitoleic acid or ricinoleic acid. The emulsification additive has a structure formula represented as follows, wherein R1 is H or CH3, R2 is CONH2, CH2SO3Na or COOM, the x, the y, the a and the b are linking numbers of a copolymer repetitive unit and are ranged from 1 to 10, the m and the n are addition mole average numbers and are ranged from 10-50, wherein M is a hydrogen atom, a monovalent metal ion, an amino group or an organic ammonium group. The demoulding agent is low in cost, is free of generation of oil contamination, is long in storage time, is not liable to decay, deteriorate and layer, and is free of influence on surface and internal quality of concrete.
Owner:KZJ NEW MATERIALS GROUP CO LTD +1

Process for changing phenolic nitrate effluent into useful material by extracting, evaporating, crystallizing and coupling

InactiveCN101654305ASolve bottlenecksSolve the miscibility problemEvaporationSolution crystallizationPhenolSodium sulfate
The invention discloses a process for changing phenolic nitrate effluent into useful material by extracting, evaporating, crystallizing and coupling, belonging to the field of changing waste water into useful materials. The process comprises the steps of pre-treating waste water, extracting phenol, performing triple effect evaporation and recycling sodium sulfate. Phenol is extracted with ricinoleic acid and is recycled, so the industrial usage of the phenol is decreased. The oil-water mutual solving problem is efficiently solved by utilizing the salting-out effect of the sodium sulfate highlycontained in the waste water. By adopting triple effect evaporation of counter-current operation under a basic condition, the phenol is efficiently prevented from secondarily returning into air, so the phenol contained in the treated waste water is less than 0.5mg / l and can be used as the scouring water for preparing process or can be directly discharged. The by-product sodium sulfate solid is efficiently recycled and the purity of the sodium sulfate is above 99.9%. The produced sodium sulfate makes up for the steam consumption during the evaporation process. Furthermore, the process has theadvantages of low treating cost, economic benefit and obvious environmental benefit.
Owner:TSINGHUA UNIV

Diesel anti-wear agent

The invention discloses a diesel anti-wear agent. The diesel anti-wear agent is prepared by taking ricinoleic acid, propanetriol and solvent oil as raw materials. A preparation method of the diesel anti-wear agent disclosed by the invention comprises the following steps: (1) preparing ricinoleic acid monoglyceride: firstly adding the ricinoleic acid and the propanetriol into a reaction kettle, further adding the solvent oil, adding a catalyst for performing esterification reaction, stirring, increasing the temperature to 160-180 DEG C, removing water for 5-6h under a reflux state, washing a generated material with the water for removing the acidic catalyst after the end of the esterification reaction, and finally performing decompression distillation to dehydrate the material so as to get the ricinoleic acid monoglyceride; and (2) compounding: firstly adding ricinoleic acid into the reaction kettle, increasing the temperature to 100-110 DEG C, keeping for 1h, removing the water, then cooling to below 50 DEG C, adding ricinoleic acid monoglyceride, and uniformly stirring to get the diesel anti-wear agent. The diesel anti-wear agent disclosed by the invention has the advantages of reducing the emission of harmful substances, protecting an environment and greatly improving the lubricating performance of diesel.
Owner:江苏汉光实业股份有限公司

Disposable medical supplies from hydrolytically biodegradable plastics

Hydrolytically degradable polymers in the form of biodegradable disposable medical devices for use in medicine and laboratories such as syringes, test tubes, catheters, tubing, trays, medical fabrics, and gloves are described. The devices are formed in whole or in part of a hydrolytically degradable polymer. In the preferred embodiment, the devices or structural components thereof degrade in a period of weeks to months, preferably within a year and more preferably within six months of exposure to aqueous solutions. Conventional hydrolytically degradable polymers may be utilized or these may be modified to increase mechanical or processing characteristics, for example, using a polyfunctional branching agent and / or a chain extending agent. In one embodiment, the hydrolytically degradable polymer is a member of a new class of polyesters comprising an aliphatic dicarboxylic acid, an aliphatic diol and optionally, one or more bifunctional fatty acids such as ricinoleic acid and / or castor oil. The devices are prepared using standard techniques, such as by injection molding, extrusion or melt spinning. The devices can be formed entirely of the degradable polymer, or they can be coated with a polymer coating in order to increase the compatibility of and reduce the possibility for interaction between the surface of the device and liquids that may come in contact with the device, or they may include core or other internal structural member formed of either the biodegradable or non-biodegradable material.
Owner:MASSACHUSETTS INST OF TECH

Method for preparing caster oil-based polyester serving as PVC (Polyvinyl Chloride) plasticizer

The invention discloses a method for preparing caster oil-based polyester serving as a PVC (Polyvinyl Chloride) plasticizer, belonging to the technical field of chemical synthesis. The method comprises the following steps: preparing caster oil-based dicarboxylic acid by reacting a down-stream product, namely, ricinoleic acid of low-price bio-based raw caster oil, dihydric anhydride and dihydric alcohol serving as raw materials in two steps: preparing caster oil-based dicarboxylic acid by using ricinoleic acid and dihydric anhydride, and carrying out a polyesterification reaction on the caster oil-based dicarboxylic acid and the dihydric alcohol in the coexistence of a catalyst and a water-carrying agent; and distilling under reduced pressure to obtain the caster oil-based polyester PVC plasticizer. A PVC plastic test piece is prepared by treating the caster oil-based polyester PVC plasticizer, PVC resin and a thermal stabilizer according to a certain formula through a solvent film casting method. The test piece is soft, and is equivalent to a PVC plastic piece plasticized by dioctyl phthalate (DOP) in the transparency under the same condition. The raw material is caster oil-based, recyclable, low in price and independent of petroleum, a preparation process is simple, and three wastes are not produced. The product is non-toxic, environment-friendly, resistant to migration, and superior in plasticizing performance, and has a good application prospect.
Owner:JIANGNAN UNIV
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