61 results about "CITRATE ESTER" patented technology

The present invention relates to a plasticizer composition, including a lower alkyl-based citrate and a higher alkyl-based citrate at the same time, as citrate, wherein the ratio of a hybrid type to a non-hybrid type and the ratio of the lower alkyl groups to the higher alkyl groups are controlled so that effects are achieved. When applying the plasticizer composition to a resin, stress resistance and mechanical properties can be maintained at an equal or higher level, the migration and volatile loss properties and the plasticization efficiency can be balanced, and the light resistance and heat resistance can be remarkably improved.

The invention provides a polylactic acid-polycitrate composite microsphere as well as a preparation method and application thereof. The polylactic acid-polycitrate composite microsphere is prepared from the following raw materials: a polycitrate prepolymer and poly-L-lactic acid. According to the polylactic acid-polycitrate composite microsphere provided by the invention, the polycitrate prepolymer is introduced, so that mechanical-degradation double-phase matching of a material can be realized, the hydrophobicity of the poly-L-lactic acid can be reduced, the hydrophilic-hydrophobic balance of the surface of the composite microsphere is realized, the affinity and biological activity of cells are improved, and the biocompatibility of the composite microsphere is improved. And the poly citrate prepolymer and the poly-L-lactic acid are matched for use, so that the whole polylactic acid-poly citrate composite microsphere has bionic viscoelasticity, thereby promoting the spreading of fibroblasts and the secretion of more integrin and collagen monomers, facilitating the behavior regulation and control of cells, and mildly stimulating the regeneration of collagen.

Provided is a cellulose ester composition that has good flowability, and a molded product obtained therefrom that is a molded product in which water droplet marks are inhibited from occurring. A cellulose ester composition contains: (A) 100 parts by mass of a cellulose ester; (B) 19 to 45 parts by mass of a citric acid ester compound having a solubility in water of 2 g / 100 ml or less; and (C) 1 to 9 parts by mass of an adipic acid ester compound.

The present invention provides a plasticizer composition and a resin composition comprising the same. The plasticizer composition according to the present invention comprises a cyclohexane-1, 2-diester-based substance and a citrate-based substance, and the plasticizer composition is environmentally friendly and has high stability and excellent basic properties.

The application discloses an environmentally-friendly soft type yoga mat special silk-screen printing ink and a preparation method thereof, and belongs to the technical field of silk-screen printing inks. The ink comprises the following components in parts by weight: 30-50 parts of main body resin, 5-15 parts of environmentally-friendly pigment, 25-45 parts of environmentally-friendly composite solvent, 1-5 parts of adhesion promoter, 0.5-2 parts of rheological additive, 0.5-2 parts of scratch-resistant additive, and 2-8 parts of environmentally-friendly non-ortho phenyl plasticizer. The ink is extremely environmentally-friendly, meets international export standards, and is free of phthalate plasticizers, benzophenone solvents and heavy metal pigments in the whole process. Instead, the ink uses citric acid ester non-ortho phenyl plasticizers, benzene-free and ketone-free composite solvents and heavy metal-free organic pigments. The VOC content is far lower than the national limit value, the irritating odor is eliminated, and phthalate controlled substances are not detected. The ink meets the EU REACH regulation appendix XVII 51 / 52 and the EN71-3 toy safety standard, and completely solves the problem of limited export of traditional inks.

This invention discloses a method for preparing a polycitric acid-based adhesive composite coating. The method includes the following steps: Step 1: After melting citric acid, polyethylene glycol and 1,8-octanediol are added, acrylic acid is added dropwise and stirred, and the mixture is dissolved, purified by dialysis, and then freeze-dried under vacuum to obtain a double-bonded polycitric acid ester prepolymer; Step 2: Polylysine is mixed with the double-bonded polycitric acid ester prepolymer to obtain a polycitric acid ester composite solution; Step 3: The polycitric acid ester composite solution is dropwise added to the surface of a substrate and thermosetting to obtain a polycitric acid-based adhesive composite coating. This invention also discloses the applications of the polycitric acid-based adhesive composite coating. This invention, by adding acrylic acid to the polycitric acid prepolymer system to generate a double-bonded polycitric acid ester prepolymer, and by adding polylysine to form a polycitric acid ester composite solution, forms a polycitric acid-based adhesive composite coating with strong adhesion after thermosetting, which is applicable to the field of biodegradable biomedical materials technology.

The invention discloses a moisturizing and repairing spray raw material capable of improving a spray effect and a preparation method of the moisturizing and repairing spray raw material. The moisturizing and repairing spray raw material is prepared from the following raw materials: glycerol tri (ethylhexoic acid) ester, glyceryl stearate citrate, stearyl alcohol polyether-21, cetyl alcohol palmitate, allantoin, sodium hyaluronate, panthenol, PCA sodium and water. According to the specific formula, the facial cleanser is prepared from the following raw materials: 58 to 68 percent of glycerol tri (ethylhexoic acid) ester, 13 to 23 percent of glyceryl stearate citrate, 2 to 12 percent of stearyl alcohol polyether-21, 2 to 12 percent of cetyl alcohol palmitate, 0.1 to 0.5 percent of allantoin, 0.01 to 0.2 percent of sodium hyaluronate, 0.01 to 1 percent of panthenol, 0.1 to 1.5 percent of sodium PCA and 1 to 4 percent of water. The light synthetic ester is used as a main body, the water-soluble moisturizing and repairing component is wrapped in the oil-based emulsified particles, the balance of a water phase system of a basic formula is not changed after the water-based emulsified particles are added for spraying, the viscosity fluctuation in winter caused by excessive water phase is avoided, meanwhile, the oil-based particles can carry functional components to be attached to the skin surface and slowly released, and the moisturizing and repairing effect is good. The long-term effect of moisturizing and repairing is improved.

(Solution) Provides a gel-like composition comprising a vinyl chloride-based resin and a plasticizer, which exhibits a gel state at 20°C. The plasticizer is at least one selected from the group consisting of isophthalic acid esters, terephthalic acid esters, fumaric acid esters, acetylicinoleic acid esters, citric acid esters, acetyl citrate esters, adipic acid esters selected from di-2-ethylhexyl adipic acid (DOA) and diisononyl adipic acid (DINA), maleic acid esters and their derivatives, and salts thereof. Provides an electronic device comprising a first electrode and a second electrode, and a polymer layer disposed between the first electrode and the second electrode and comprising the gel-like composition.

The invention relates to the technical field of polymer foam materials, in particular to an environment-friendly low-density polyethylene / polypropylene blended foam material and a preparation method thereof. The material is prepared from 45-55 parts of polypropylene, 22-28 parts of low-density polyethylene, 8-12 parts of polylactic acid, 4-6 parts of a starch-based foaming agent, 1-3 parts of citrate, 0.8-1.2 parts of zinc stearate and 0.2-0.3 part of an antioxidant 1010 through raw material pretreatment, melt blending granulation by a double-screw extruder and gradient foaming by a single-screw extruder. Through innovative formula design and process control, excellent low density, high percentage of close area and biodegradability are realized, and the material can be widely applied to the fields of packaging buffer materials, building heat insulation layers, automotive interiors and the like with high requirements on environmental protection and light weight.

The invention belongs to the technical field of concrete, and particularly relates to an early-strength delayed-coagulation concrete admixture and a preparation method thereof. The early-strength delayed-coagulation concrete admixture is prepared from an unsaturated acid monomer, an unsaturated polyether macromonomer, an unsaturated citrate monomer, an unsaturated diethylene glycol monomer, a reducing agent, an initiator, a chain transfer agent, a solubilizer, deionized water and nano calcium carbonate. Wherein the unsaturated citrate monomer is triallyl citrate, and the unsaturated diethylene glycol monomer is diethylene glycol monovinyl ether. According to the invention, the workability retention time of the fresh concrete is effectively prolonged, and normal development of early and later strength of the concrete can be guaranteed.

The application belongs to the technical field of high polymer materials, and provides an insulating paint with high partial discharge inception voltage, a preparation method and application thereof. At least one of long-chain alkyl citrate foaming agent, long-chain alkyl terephthalate foaming agent and long-chain alkyl dibasic fatty acid ester foaming agent is added into a base resin as a foaming agent, and the obtained insulating paint can obtain a polymer insulating layer with a bubble layer after coating and curing, wherein a large number of hole structures are contained, and the PDIV is high. The foaming agent used in the application has high safety, the preparation process of the polymer insulating layer with bubbles is simple and easy to operate, and the prepared paint film will not produce defects such as paint tumor or large bubbles.

The invention belongs to the technical field of flame-retardant materials, and particularly relates to a high-temperature-resistant flame-retardant material and a preparation method thereof. The high-temperature-resistant flame-retardant material is prepared from the following components in parts by mass: 50 to 60 parts of ethylene-vinyl acetate copolymer, 10 to 20 parts of ethylene propylene diene monomer, 2 to 5 parts of maleic anhydride grafted ethylene-vinyl acetate, 20 to 25 parts of flame retardant, 1 to 2 parts of graphene, 5 to 8 parts of citrate plasticizer, 0.5 to 1 part of calcium stearate, 1 to 2 parts of paraffin, 0.5 to 1 part of antioxidant and 1 to 3 parts of sensitizing cross-linking agent. The flame retardant is prepared by mixing phosphorus modified nano cellulose, modified zinc borate and melamine; the high-temperature-resistant flame-retardant material prepared by the invention has a good flame-retardant effect, and has relatively good tensile strength and elongation at break, good processability and the like.

The application provides a slow-release tea preservative and a preparation method thereof, and belongs to the technical field of preservatives.The preparation method comprises the following steps: S1, dissolving a vitamin E derivative in oil, stirring and uniformly mixing to prepare an oil phase; S2, dissolving a hydrophilic emulsifier in water, adding sodium alginate, stirring and uniformly mixing to prepare an aqueous phase; S3, adding the oil phase into the aqueous phase, high-speed emulsifying to form an emulsion, heating to a reaction temperature, dropwise adding a calcium chloride solution, cooling and solidifying, filtering, and drying to obtain the slow-release tea preservative.The prepared VE citric acid ester derivative can significantly improve the antioxidant performance of VE, obviously improve the stability of VE to acid and heat, is not prone to oxidation and deterioration, has good sterilization, antibiosis, bacteriostasis and anti-inflammatory effects, and the prepared VE derivative can be slowly released due to the slow-release microcapsule structure, thereby achieving long-acting preservation.

This invention discloses a universal method and composition for solving the pilling problem in cold-formulated cosmetics. Adding an effective amount of glyceryl oleate, citrate / caprylic / capric triglyceride to a cosmetic composition containing a pilling-prone cold-formulated emulsifier can significantly reduce or eliminate pilling. This substance has been discovered for the first time to have a novel anti-pilling application, effective against pilling caused by the emulsifier's own characteristics, high dosage, electrolyte interference, or the addition of large molecules, and is universally applicable to different types of cold-formulated emulsifier systems. This invention is particularly suitable for systems using electrolyte-rich natural plant extracts as the aqueous phase, fundamentally solving the pilling problem and providing a reliable solution for preparing high-feel, all-natural cold-formulated cosmetics.

The invention discloses a polylactic acid heat shrink film and a preparation method thereof, and the polylactic acid heat shrink film is prepared by melt blending and biaxial stretching of the following raw materials: 86-92 parts by weight of a polylactic acid modified material, 4-6 parts by weight of a blend of poly (adipic acid) / butylene terephthalate, polycarbonate and poly (butylene succinate), 1-2 parts by weight of poly (adipic acid)-1, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate), 1-2 parts by weight of a compatilizer, 1-2 parts by weight of an antioxidant and 1-2 parts by weight of a lubricant. The composite material is prepared from the following components in parts by weight: 1 to 3 parts of 1, 2-propylene glycol ester, 1.5 to 3 parts of nano organic modified montmorillonite, 0.5 to 1 part of nano silicon dioxide, 2 to 4 parts of bio-based citrate plasticizer, 0.5 to 0.8 part of polymeric epoxy functionalized chain extender, and 0.3 to 0.6 part of hindered phenol antioxidant. Through blending modification of the raw materials and accurate regulation and control of the processing technology, the contradiction between the brittleness and the thermal shrinkage performance of the polylactic acid film is solved, and meanwhile the polylactic acid film has good mechanical performance and high barrier performance.

The present invention relates to a cosmetic formulation comprising glyceryl stearate citrate (INCI: Glyceryl Stearate Citrate) and acetylhydroxyproline (INCI: Acetyl Hydroxyproline), and to the methods and uses with acetylhydroxyproline (INCI: Acetyl Hydroxyproline) for reducing the sand adhesion of cosmetic formulations.

The present disclosure provides a plastisol composition comprising from about 1% to about 49% by weight of at least one polyhydroxyalkanoate. The plastisol composition also includes from about 51% to about 99% by weight of at least one plasticizer selected from the group consisting of epoxidized vegetable oils, citrate esters, triglycerides, and mixtures thereof. A screen printing ink comprising the plastisol is also disclosed.

The present application belongs to the technical field of flocculants for dredged sand, and discloses a green environmental protection additive for preparing high-quality dredged sand. The raw materials of the green environmental protection additive disclosed by the present application include: flocculation components and film-forming components; the green environmental protection additive is applied to the dredged sand at a mass ratio of 1:500-600. The green environmental protection additive includes the following components in parts by mass: 10-50 parts of anionic polyacrylamide, 50-100 parts of polyaluminum chloride, 8-15 parts of epoxy soybean oil, 2-5 parts of citrate, 1-3 parts of sodium bicarbonate, and 5-10 parts of natural latex. The present application aims to provide a green environmental protection additive for preparing high-quality dredged sand, which can improve the flocculation effect and obtain good mechanical strength when applied to concrete, in view of the problems of small cohesion, low structural strength and easy damage under shearing of flocculation groups in the process of using common flocculants at present.

The invention relates to the technical field of extraction of citrate plasticizers in polymers, and discloses a ternary extraction liquid and application thereof and a method for extracting citrate from a polymer, the ternary extraction liquid comprises halogenated hydrocarbon, C1-C3 alcohol and amide shown in the formula (1); wherein R1 is H or alkyl of C1-C3, R2 is alkyl of C1-C3, and R3 is alkyl of C1-C3. The ternary extraction liquid provided by the invention is used for extracting citrate in a polymer and has a relatively high extraction rate.

The present disclosure is directed to certain polyether esters of di- and tri-carboxylic acid, and methods of making and using the same, such as maleate, fumarate, itaconate, citraconate, mesaconate, citrate, and tartrate, esters of polycitronellol and other polyterpenols. Such products can be prepared from renewable resources and the functional groups can include a wide variety of unsubstituted, substituted, saturated, unsaturated, cyclic, and acyclic molecular structures.

This invention belongs to the field of packaging materials technology, and particularly relates to a biodegradable composite film-paper material and its preparation method. The biodegradable composite film-paper material comprises a polymer layer and a paper layer. The polymer layer, by weight, comprises the following components: 70-80 parts polylactic acid, 20-30 parts polycaprolactone, 1-3 parts synergist, 8-10 parts citrate starch, 0.3-1.0 parts lubricant, and 0.2-0.5 parts antioxidant. Experimental results show that the biodegradable composite film-paper material prepared by this invention has an antibacterial grade of 0, a tensile strength of 30-34 MPa, and an elongation at break of 415-450%.

The application discloses a low-temperature-resistant and impact-resistant nylon material and a preparation method thereof, and relates to the technical field of polymer materials. 3+ The Fe ions provided by the trivalent iron salt are simultaneously connected to the carboxyl groups on the surface of the carboxylated bio-based cellulose nanocrystals and the citrate macromolecular plasticizer through coordination bonds, and the citrate macromolecular plasticizer is anchored on the surface of the carboxylated bio-based cellulose nanocrystals. The modified nylon material of the application breaks through the limitation that traditional elastomers lose toughening effect due to glassification at extremely low temperatures, and the material still exhibits excellent notched impact strength in an ultralow-temperature environment of-60 DEG C to-70 DEG C, effectively widening the extreme service temperature interval of the nylon material.

As a solution, the present application provides a gel-like composition containing a vinyl chloride resin and a plasticizer, which is in a gel state at 20°C. The plasticizer is at least one selected from the group consisting of isophthalate esters, terephthalate esters, fumarate esters, acetyl ricinoleate esters, citrate esters, acetyl citrate esters, adipate esters selected from di-2-ethylhexyl adipate (DOA), diisononyl adipate (DINA), maleate esters and their derivatives, and salts thereof. The present application provides an electronic element having a first electrode and a second electrode, and a polymer layer disposed between the first electrode and the second electrode and containing the gel-like composition.

The application provides a MOF-polyimide composite fiber membrane and a preparation method and application thereof, and the preparation method comprises the following steps: mixing diamine, dianhydride, a solvent and an additive, and obtaining a polyamide acid mixed solution after reaction; wherein the additive at least comprises phenethylamine, pectin and citrate; an MOF solution is added into the polyamide acid mixed solution to obtain a mixed solution; and after the mixed solution is subjected to electrostatic spinning treatment and imidization treatment in sequence, a MOF-polyimide composite fiber membrane is obtained, and the MOF-polyimide composite fiber membrane with excellent gas separation performance can be efficiently and simply prepared.

An environmentally-clean fire inhibiting liquid biochemical composition for application on combustible surfaces to inhibit fire ignition and flame spread in the presence of fire. The environmentally-clean fire inhibiting liquid biochemical composition including a dispersing agent realized in the form of a quantity of water, for dispersing metal ions dissolved in water; a fire inhibiting agent in the form of at least one alkali metal salt of a nonpolymeric saturated carboxylic acid, for providing metal ions dispersed in the water when the alkali metal salt of a nonpolymeric saturated carboxylic acid is dissolved in the quantity of water; and a coalescing agent in the form of an organic compound containing three carboxylic acid groups, or salt / ester derivatives thereof, specifically triethyl citrate (TEC), an ester of citric acid, for dispersing and coalescing the metal ions when the fire inhibiting liquid composition is applied to combustible surfaces to be protected against fire, while water molecules in the water evaporate to the environment during drying, and the metal ions cooperate to form thin alkali metal salt crystalline coatings on the combustible surfaces. The alkali metal salt of nonpolymeric saturated carboxylic acid may be selected from the group consisting of: alkali metal salts of citric acid; alkali metal salts of oxalic acid; alkali metal salts of gluconic acid; and alkali metal salts of tartaric acid. The alkali metal salt of nonpolymeric saturated carboxylic acid may be selected from the group consisting of the alkali salt of lithium, the alkali salt of sodium, the alkali salt of potassium, the alkali salt of cesium and the alkali salt of rubidium. Preferably, the alkali metal salt of nonpolymeric saturated carboxylic acid is an alkali salt of potassium, namely tripotassium citrate (TPC).

The invention discloses a method for toughening a composite modified polyanion pole piece, belongs to the technical field of battery pole pieces, and particularly relates to a method for preparing pole piece slurry by mixing a pole piece main material with SP, then adding PVDF glue solution for kneading treatment, then adding CNT for dispersing treatment, and adding a diluent for mixing; the PVDF glue solution contains a flexibilizer, and the flexibilizer comprises citrate and / or epoxidized vegetable oil; the mass ratio of the usage amount of PVDF to the usage amount of the flexibilizer in the PVDF glue solution is (3-12): (0.2-0.8), and the citrate comprises tributyl citrate and / or triethanolamine citrate. The invention provides the toughening preparation method of the composite modified polyanion pole piece, which has the advantages of high coating peel strength, low possibility of material falling and high capacity retention ratio after charging and discharging cycles after a battery is prepared from the composite modified polyanion pole piece.

The application belongs to the technical field of flame-retardant materials, and particularly relates to a high-temperature-resistant flame-retardant material and a preparation method thereof. The high-temperature-resistant flame-retardant material is composed of the following components in parts by mass: ethylene-vinyl acetate copolymer 50-60 parts, ethylene-propylene-diene rubber 10-20 parts, maleic anhydride grafted ethylene-vinyl acetate 2-5 parts, flame retardant 20-25 parts, graphene 1-2 parts, citrate plasticizer 5-8 parts, calcium stearate 0.5-1 part, paraffin 1-2 parts, antioxidant 0.5-1 part, and sensitized crosslinking agent 1-3 parts. The flame retardant is prepared by mixing phosphorus-modified nanocellulose, modified zinc borate and melamine. The high-temperature-resistant flame-retardant material prepared by the application has good flame-retardant effect, and has good tensile strength, elongation at break, good processability and other properties.

Provided herein are materials and methods related to scaffolds and uses thereof. In some embodiments, provided herein are poly (octamethylene-octanol citrates) (POOC) scaffolds with native mechanical properties that are comparable to urinary bladder tissue. In some embodiments, provided herein are methods for the synthesis of POOC scaffolds with native mechanical properties that are comparable to urinary bladder tissue by including octanol in the polycondensation synthesis of POC. In some embodiments, provided herein are methods of use of the disclosed scaffolds, including for urinary bladder tissue regeneration.

The application relates to the technical field of polyethylene, and discloses a degradable high-density polyethylene-bio-based polyester blended material for a garbage can and a preparation method thereof; the high-density polyethylene, bio-based polyester, styrene-based citric ester grafted POE, antioxidant and filler are blended, and extruded in a double-screw extruder to obtain the high-density polyethylene-bio-based polyester blended material. The styrene-based citric ester grafted POE improves the compatibility between polyethylene and polylactic acid and the like, and improves the mechanical properties of the blended material. The polylactic acid and polylactide have excellent biodegradability, and the citric ester grafted on the side of the POE also has good biodegradability; when added into the polyethylene material, the biodegradation rate of the blended material can be improved.

The invention relates to the field of biomedical materials, in particular to bone cement as well as a preparation method and application thereof. Comprising the steps that a component A, a component B and a component C react to form a citrate-based prepolymer, the component A is citric acid polyester containing at least two reactive ester-based functional groups on a terminal group or a side chain, the component B is non-citric acid polyester containing at least two reactive functional groups on a terminal group or a side chain, and the functional groups are the same or different; the functional groups are selected from at least one of ester groups, hydroxyl groups, amino groups, sulfydryl groups, epoxy groups, carboxyl groups, acid anhydrides and organic substituent groups; the component C is polyol; the reaction comprises an ester exchange reaction and / or a condensation polymerization reaction and a substitution reaction; the injectable citrate bone cement is prepared by blending the citrate-based prepolymer, isocyanate and an additive, has the advantages of low curing temperature, degradability, excellent mechanical properties and osteogenesis promotion, and is suitable for orthopedics, brain surgery and cranio-maxillofacial plastic repair.