13 results about "Sorbitan oleate" patented technology

The invention discloses sorbitan oleate modified castor oil-based waterborne polyurethane and a preparation method, and belongs to the technical field of paints.Castor oil is used as a soft segment, isophorone diisocyanate is used as a hard segment, and the isocyanate index of polyurethane is fixed to be about 1.1; the preparation method comprises the following steps: introducing sorbitan oleate with rigid furan and an aliphatic hydrophobic side chain into a polyurethane molecular network by adopting a prepolymerization method, and preparing a series of sorbitan oleate modified castor oil based cationic waterborne polyurethane emulsions by adopting N-methyldiethanolamine as a cationic hydrophilic chain extender and 1-4 butanediol as a micromolecular chain extender. According to the sorbitan oleate modified castor oil-based waterborne polyurethane and the preparation method, sorbitan oleate is introduced into a polyurethane molecular network, so that the mechanical property of a castor oil-based waterborne polyurethane material is effectively improved, and the water resistance and corrosion resistance of the castor oil-based waterborne polyurethane material are improved.

According to the green and environment-friendly antibacterial polyurethane adhesive and the synthesis method thereof, renewable sorbitan oleate and tannic acid are introduced into a waterborne polyurethane adhesive, so that the environmental protection property of the adhesive is improved, and the water resistance and flowability of the adhesive can be effectively improved; and the adhesive is endowed with antibacterial and mildew-proof properties and higher bonding strength. The sorbitan oleate and the tannic acid are both subjected to chemical reaction with the toluene diisocynate, and polyhydroxy structures of the sorbitan oleate and the tannic acid promote cross-linking among molecules and enhance a molecular network of the adhesive, so that the cementing performance of the adhesive is improved; the hydroxyl position of sorbitan oleate and a long alkane chain also increase the synthesis yield of the adhesive and the toughness and water resistance of the product, tannic acid is used as a cross-linking agent on one hand, and on the other hand, the interaction of a polyphenol structure in tannic acid and an adhesive matrix can inhibit the growth of mould and bacteria on the other hand, so that the antibacterial and mildew-proof properties of the adhesive are also improved, and the service life of the adhesive is prolonged. And the mildew-proof capability is improved by more than 80%.

The invention belongs to the field of pharmaceutical preparations, and particularly relates to a pharmaceutical composition containing chlorbuconazole and a preparation method of the pharmaceutical composition. The invention provides a pharmaceutical composition containing chlorbuconazole as well as a preparation method and application of the pharmaceutical composition. Specifically, the invention discloses a pharmaceutical composition, the pharmaceutical composition comprises chlorbuconazole or a pharmaceutically acceptable salt thereof, polyethylene glycol 400, sorbitan oleate and polysorbate 80, the chlorbuconazole or the pharmaceutically acceptable salt thereof accounts for 1-10% of the total weight of the pharmaceutical composition, and the moisture content of the pharmaceutical composition is lower than 10%. The pharmaceutical composition disclosed by the invention has good dissolution rate and relatively high stability.

The present invention relates to an aqueous acrylic dispersion, a preparation method thereof and an application, belonging to the technical field of aqueous coatings. The aqueous acrylic dispersion described in the present invention comprises a first copolymer; the copolymerization monomers of the first copolymer include a first monomer, and the first monomer is sorbitan oleate; the first monomer accounts for 1-20 wt% of the solid content of the aqueous acrylic dispersion; the solid content acid value of the aqueous acrylic dispersion is 15-35 mg KOH / g, and the solid content hydroxyl value is 50-165 mg KOH / g. The aqueous acrylic dispersion has excellent storage stability, and the aqueous coating using the aqueous acrylic dispersion as the main film-forming substance has the advantages of high gloss, long pot life and good water resistance.

The invention provides a ketorolac patch composition, a ketorolac patch as well as a preparation method and application of the ketorolac patch. The ketorolac patch composition comprises an active component, a matrix material and a transdermal enhancer, the transdermal enhancer comprises at least two of lactic acid, oleic acid, phosphoric acid, tartaric acid, citric acid, fumaric acid, malic acid, isopropyl myristate, propylene glycol monolaurate, glyceryl monolinoleate, glyceryl triacetate, diisopropyl adipate, triethyl citrate, polyglycerol oleate and sorbitan oleate (Span 80); preferably, the transdermal enhancer is prepared from at least two of isopropyl myristate, triethyl citrate, polyglycerol oleate, glyceryl triacetate, oleic acid, sorbitan oleate (Span 80), lactic acid and citric acid; the transdermal enhancer provided by the invention comprises the compounding of at least two of the substances, so that the transdermal diffusion performance of the ketorolac patch composition can be greatly improved.

The invention discloses a novel sodium aluminate seed crystal decomposition crystallization auxiliary agent and a preparation method thereof, and the novel sodium aluminate seed crystal decomposition crystallization auxiliary agent comprises the following components by mass: 0.1%-1% of sorbitan oleate sodium sulfonate, 0.1%-1% of secondary alkyl sodium sulfonate, and the balance of distilled water. The preparation method comprises the following specific preparation steps: weighing sorbitan oleate sodium sulfonate and secondary alkyl sodium sulfonate according to a ratio, and putting the weighed materials into a beaker; and adding distilled water into the beaker until the total weight is 100g, stirring for 5-10 minutes, and dissolving into uniform liquid. According to the invention, the independently designed and synthesized sorbitan oleate sodium sulfonate and the anionic surfactant secondary alkyl sodium sulfonate are compounded, and the two components have a synergistic enhancement effect, so that agglomeration among aluminum hydroxide particles is effectively promoted, and the decomposition rate of a sodium aluminate solution is improved. The composition is simple, the preparation technology is simple, industrial production is easy, and the good industrial application prospect is achieved.