785 results about "Glyceryl Ethers" patented technology

The invention discloses a comb polyurethane associated thickener and a preparation method and an application thereof and the preparation method comprises the following steps: adopting primary amine and diglycidyl ether to react, obtaining hydrophobic diol; then adopting polyether diol, catalyst, diisocyanate, hydrophobic diol and alkanol to react, using precipitate for precipitation after finishing the reaction, drying the precipitation and obtaining the comb polyurethane associated thickener. More than two hydrophobic groups (long chain alkyl) in the molecules of the comb polyurethane associated thickener so that the consistency of the emulsion paint can be greatly improved, the emulsion paint has not only high viscosity under low shear but also low applicable viscosity under high shear, and the quality of the emulsion paint is increased. The polyurethane associated thickener is applicable to thickening the water-containing system and can be used in emulsion paint, varnish, adhesive, leather, papermaking, dyeing and printing, ink, cosmetics and the like.

The invention relates to magnetic silicon dioxide microspheres modified with diethylaminoethyl on the surface and a preparation method and an application thereof; the sol-gel method is adopted to prepare magnetic silicon dioxide microspheres which have ferroferric oxide nanoparticles as cores and silicon source, namely tetraethoxysilane as shells; by adopting the microspheres as template, alkylene oxide coupling agent 3-glycidoxypropyltrimethoxysilane (GPTMS) as activator and diethylaminoethyl hydrochloride as functional group, the magnetic silicon dioxide microspheres modified with diethylaminoethyl (DEAE) on the surface are prepared. The method comprises the preparation of magnetic silicon dioxide microspheres, the epoxidation of magnetic silicon dioxide microspheres and the DEAE surface modification. The method solves the problems that the bindingability between the existing magnetic microspheres and nucleic acid is not high, the preparation processes are complicated and the like. The bindingability between the magnetic microspheres prepared by the method and nucleic acid is high so as to be used to separate nucleic acid from the biological sample.

A fragrance composition having high fragrance properties such as fragrance diffusivity and long-lasting property obtained without changing the fragrance note of the fragrance composition which is useful in various fragrance providing products such as cosmetics, toiletry products, bath compositions and pharmaceuticals having satisfactory fragrance properties such as fragrance diffusivity and long-lasting property. The fragrance composition contains 0.1 to 90% by weight of a glyceryl ether derivative represented by the following general formula (I), such as 2-ethylhexyloxypropanediol as a fixative or fragrance note-improving agent. The fragrance-providing product contains 0.01 to 50% by weight of the fragrance composition in the final product composition. General formula (I) is:wherein R1 represents an aliphatic hydrocarbon group having 4 to 12 carbon atoms which may have a branched chain or an aromatic hydrocarbon group, which may have a substituent.

The invention discloses a surfactant composition, the surfactant composition comprises essential components such as a component (a), a component (b), a component (c) and a component (d); wherein the component (a) is selected from one or more long-chain fatty acyl amino acid salt represented by the following general formula (1) or (2), the component (a) accounts for 1% to 50wt% of the total weight of the surfactant composition, and the general formula (1) and (2) are shown in the specification; the component (b) is selected from one or more linear chain or branched chain aliphatic hydrocarbon glyceryl ether represented by the following general formula (3), the component (b) accounts for 0.1% to 10wt% of the total weight of the surfactant composition, and the general formula (3) is shown in the specification; the component (c) is selected from one or more water-lost sorbitol fatty acid ester represented by the following general formula (4) and / or is selected from one or more alkyl saccharide represented by the following general formula (5), the component (c) accounts for 0.1% to 10wt% of the total weight of the surfactant composition, and the general formula (4) and (5) are shown in the specification; the component (d) is selected from a solvent comprising one or more from water, lower alcohol, polyol and polyol ether, and the component (d) accounts for 30% to 90wt% of the total weight of the surfactant composition.

The invention provides a release agent for an aluminum alloy mold and a preparation method of the release agent. The release agent comprises, by weight, 10-20 parts of polyethylene wax, 1-5 parts of polyving akohol, 4-9 parts of silicone oil, 2-6 parts of boraxes, 19-27 parts of talcum powder, 6-14 parts of sodium dodecyl benzene sulfonate, 0.2-1.3 parts of cetyltrimethylammonium chloride, 5-10 parts of compound emulsifiers, 0.05-0.2 part of dichlorophen, 0.1-0.25 part of oxygen propylene ethylene oxide glyceryl ether, 0.2-1.4 parts of inhibiters, and 60-90 parts of water. The preparation method of the release agent comprises the steps that the raw materials are weighed according to the formula, and then stirred and cooled, and thus the release agent for the aluminum alloy mold is obtained. The release agent prepared through the method is safer, clean and free of pollution; compared with a traditional oil-based release agent, the release agent has the advantages that the cooling effect is good, accumulation is avoided, and the surface quality of castings is good; and compared with a powdery release agent, the release agent has the advantage of being low in cost.

The invention relates to the technical fields of surgical hemostasis and chronic heal wound hemostasis and wound protection, and in particular relates to a biodegradable hemostatic membrane. Alkaline crosslinking is carried out on sodium hyaluronate, a cellulose derivative and a cross-linking agent to obtain gel I; sodium alginate or sodium hyaluronate and 1,4-Butanediol diglycidyl ether are mixed to obtain gel II; the gel I and the gel II are mixed and cross-linked, and then purified and dried, and subjected to film formation under pressure to obtain the biodegradable hemostatic membrane. The obtained membrane is loose in structure and high in safety, easily attaches to and disperses on the surface of a wound, quick to stop bleeding, good in biocompatibility, suitably adjustable in in-vivo degradation time, wide in application range, low in cost, short in process period, little in pollution, low in energy consumption and easy for realizing industrialization, and has the good functions of stopping bleeding, promoting healing and preventing inflammation.

The invention provides a timber adhesive which comprises, by weight, 100 parts of vegetable gelatin, 80 to 160 parts of water, 10 to 15 parts of a modifier, 5 to 15 parts of borax, 0.2 to 0.4 part of polyepoxy glyceryl ether, 2 to 3 parts of glycerin, 3 to 5 parts of a filling material and 0.05 to 0.1 part of nipagin ester, wherein the vegetable gelatin is starch or dextrin, the modifier is tributyl phosphate or vinyl acetate, and the filling material is talcum powder, asbestos powder or titanium dioxide. According to the invention, the natural polymer vegetable gelatin is modified so as to prepare the formaldehyde-free adhesive, and the adhesive has the advantages of strong adhesiveness, mold forming performance and good dispersibility and overcomes the defects of low bonding strength and poor endurance of current aqueous formaldehyde-free timber adhesives.