8 results about "Polyglycerol monostearate" patented technology

The invention discloses a preparation method of an efficient polypropylene flame-retardant synergistic master batch, and relates to the technical field of high polymer materials, and the preparation method is as follows: glyceryl stearate and polyolefin are uniformly mixed to form a mixture, and the mixture is extruded by a twin-screw extruder to prepare the efficient polypropylene flame-retardant synergistic master batch; the polyolefin is any one or more of polypropylene of 1100N, polypropylene of K7227H or polypropylene of RE420MO; the glyceryl stearate is any one or more of tripolyglyceryl monostearate, decapolyglyceryl stearate, diisostearin, tripolyglyceryl distearate and hexapolyglyceryl pentastearate; the polyglyceryl stearate is any one or more of tripolyglyceryl monostearate, decapolyglyceryl stearate, diisostearin, tripolyglyceryl distearate and hexapolyglyceryl pentastearate; according to the invention, polypropylene is used as matrix resin, glyceryl stearate is used as an additive for blending extrusion to prepare the flame-retardant synergistic master batch, and the aim of improving the performance of the halogen-free flame-retardant polypropylene material is fulfilled by using the characteristics of self-lubrication, dispersion assistance and flame retardance assistance of glyceryl stearate.

This invention belongs to the field of nanoparticle hydrogel scaffold technology, providing an MMP-responsive nanoparticle hydrogel scaffold and its application in the treatment of fibrous bone dysplasia. The nanoparticle hydrogel scaffold is prepared by cross-linking and curing triglyceride monostearate nanoparticles, 3-aminophenylboronic acid-modified hyaluronic acid, and dopamine-modified hyaluronic acid. This invention is based on the first discovery that the concentration of matrix metalloproteinases (MMPs) around fibrous bone dysplasia lesions is a biomarker reflecting the "activity and treatment response of fibrous bone dysplasia lesions," and based on this discovery, provides an MMP-responsive nanoparticle hydrogel scaffold and its application in the treatment of fibrous bone dysplasia. This nanoparticle hydrogel scaffold can achieve perilesional drug delivery and sustained MMP-responsive drug release through injection, thereby providing a local treatment strategy for fibrous bone dysplasia.

The invention belongs to the technical field of preparation of polyamide fibers, and particularly relates to polyamide spinning oil, a preparation method of the polyamide spinning oil and the polyamide fibers. The polyamide spinning oil is prepared from the following components in parts by weight, comprising the following raw material components: 15 to 25 parts of polyethylene glycol sorbitol hexoleate, 10 to 25 parts of polyethylene glycol 15-hydroxystearate, 10 to 20 parts of triethanolamine di (octadecanoic acid) ester, 5 to 10 parts of alkylphenol polyoxyethylene quaternary ammonium salt, 5 to 10 parts of chitosan quaternary ammonium salt, 20 to 30 parts of tripolyglycerol monostearate, 2 to 20 parts of 2 (3)-tert-butyl-4-hydroxy anisd, 2 to 5 parts of an anti-phenolic yellowing agent APY, 3 to 6 parts of a penetrant JFC and 2 to 5 parts of bis (2, 4-dihydroxy-4-hydroxyanisole. And 1 to 5 parts of 2, 6-diisopropyl phenyl) carbodiimide. According to the polyamide spinning oil, through reasonable design, the smoothness, flexibility, bundling property, antistatic property, yellowing resistance and other properties of polyamide spinning fibers are remarkably improved, meanwhile, the polyamide spinning oil has the synergistic effects of resisting bacteria, resisting oxidative degradation and resisting hydrolysis, and finally the product performance of the polyamide fibers is improved.

To provide an external preparation for skin comprising a heparinoid, a compound having a quaternary ammonium group and glycyrrhizinic acid, with improved storage stability.SOLUTION: Disclosed is an external preparation for skin comprising at least one selected from the group consisting of heparinoids and salts thereof, a quaternary ammonium group, at least one selected from the group consisting of glycyrrhizinic acid and salts thereof; and at least one surfactant having polyoxyethylene structure, provided that the surfactant is not polyoxyethylene stearyl ether, polyoxyethylene behenyl ether, polysorbate 60, tetraoleate polyoxyethylene sorbitol, monostearate polyethylene glycol or monostearate polyglyceryl.SELECTED DRAWING: None

The present application belongs to the technical field of polyamide fiber preparation, and particularly relates to a polyamide spinning oil, a preparation method thereof and polyamide fiber. The polyamide spinning oil comprises the following raw material components in parts by weight: polyethylene glycol sorbitol hexaoleate 15-25 parts, polyethylene glycol 15-hydroxystearate 10-25 parts, triethanolamine di(octadecanoic acid) ester 10-20 parts, alkyl phenol polyoxyethylene quaternary ammonium salt 5-10 parts, chitosan quaternary ammonium salt 5-10 parts, tri-glycerol monostearate 20-30 parts, 2(3)-tert-butyl-4-hydroxyanisole 2-20 parts, anti-phenolic yellowing agent APY 2-5 parts, penetrant JFC 3-6 parts and bis(2,6-diisopropylphenyl)carbodiimide 1-5 parts. The polyamide spinning oil of the present application is designed rationally, which significantly improves the smoothness, flexibility, bundling, anti-static property, yellowing resistance and other properties of the polyamide spinning fiber, and also has the synergistic effects of antibacterial, antioxidant degradation and hydrolysis resistance, thereby improving the product performance of the polyamide fiber.

The invention discloses a low-temperature-resistant and impact-resistant polypropylene foamed sheet and a formula thereof, and relates to the technical field of foamed sheets, the low-temperature-resistant and impact-resistant polypropylene foamed sheet comprises the following raw materials: modified homo-polypropylene, modified zinc stearate, a foaming agent and a filler; according to the invention, the modified homo-polypropylene is added, so that the low-temperature impact resistance of the material can be improved, the foaming nucleation capability is optimized, the foam structure stability is improved, and the weather resistance and aging resistance of long-term low-temperature outdoor use can be remarkably enhanced; modified zinc stearate is added, the modified zinc stearate is used as a basis, polyglycerol monostearate and modified gas-phase nano silicon dioxide are used for carrying out difunctional modification to obtain a multifunctional auxiliary agent, and the multifunctional auxiliary agent can cooperate with zinc oxide to activate the ADC foaming agent and reduce the decomposition temperature of the foaming agent so as to broaden a processing temperature window; the system lubricity and melt flowability can be improved, and the problems of equipment mold sticking and material agglomeration are reduced.

The invention discloses a process for extracting lipophilic effective components in plant medicines. The process comprises the following steps: S1, pretreatment of the plant medicines; s2, adding propylene glycol into deionized water, uniformly stirring to obtain a propylene glycol aqueous solution, then adding decapolyglycerol monostearate and lecithin, and continuously stirring for 1-2 hours to obtain an extraction solvent; s3, adding the pretreated plant medicinal materials into the extraction solvent in the step S2, extracting, centrifuging after the extraction is completed, and separating out supernate; and S4, filtering the supernate in the step S3 to obtain a finished product. The extraction method provided by the invention can effectively improve the extraction rate of lipophilic active ingredients, such as alkylamide in echinacea purpurea and kavalactone in Kava pepper, in the plant medicine, and has a good application prospect.

The invention discloses an enzyme response hydrogel for treating inflammatory bowel disease as well as a preparation method and application thereof, and the enzyme response hydrogel comprises the following components in percentage by weight: 13-18% of an effective part of pediatric stolonifera, 75-85% of an enzyme response gel matrix, 0.5-1% of purified water, 2-4% of a transdermal absorption enhancer, 0.5-1% of a solubilizer and 0-0.1% of a preservative. The enzyme response gel matrix is tripolyglycerol monostearate, the transdermal absorption enhancer is at least one of azone, oleic acid and propylene glycol, the solubilizer is at least one of tween-80, propylene glycol, polyethylene glycol and span, and the preservative is at least one of ethylparaben, phenoxyethanol and hexanediol. The enzyme response hydrogel prepared by the invention can release drugs in the presence of a specific enzyme, and due to the characteristic, the enzyme response hydrogel can act on diseased regions more accurately in treatment of inflammatory bowel diseases, so that the side effects of the whole body are reduced, and the safety and effectiveness of treatment are improved.