3 results about "Diphenyl ether" patented technology

The invention provides compound fruit fragrance and flower fragrance essence for daily chemicals and a preparation method thereof. The essence is mainly prepared from 1-acetoxy-2-tert-butylcyclohexane, linalool, lilialdehyde, hexyl acetate, rosalin, benzyl acetate, cyclamen aldehyde, alpha-hexylcinnamaldehyde, APHERMATE IFF, galaxolide 50, geranyl acetate 600, ambrotone, isovalerate, florhydral, triplal, ebanol, delta-damascone, delta-decalactone, diphenyl ether, geraniol 600, benzyl alcohol, bodhi flower ester, peach aldehyde, tonalid, p-methyl anisole, methyl benzoate, beta-ionone, butyl butyryllactate, guaiac wood oi1, musk-T, TRIMOFIX O TT IFF, seti wood wool, red apple bases, benzyl salicylate, raspberry ketone, vanillin propylene glycol acetal, super piperonal, phenylethyl alcohol, melonal, green flower Finn, Guojing, Hailanjing and 2-hydroxymethylethoxy. The compound fruit fragrance and flower fragrance essence has good stability in perfuming media, the fragrance emitted by the essence is natural and full, and the essence can be applied to various daily chemical products.

The invention relates to a preparation method of diphenyl ether dianhydride and isomers thereof, which is characterized in that the preparation method comprises the following steps of: adding solvent and monochlorophthalic anhydride into a reactor with a drying and distilling device, increasing temperature for reflux for a certain period under the protection of N2, adding alkali metal salt and catalysts, conducting reflux reaction for a certain period, decreasing the temperature, conducting filtration to obtain crude products, adding cyanophenyl and the crude products prepared through the reaction into the clean reactor with the drying and distilling device, increasing the temperature for reflux for a certain period under the protection of N2, decreasing the temperature, conducting filtration and drying to obtain the diphenyl ether dianhydride and the isomers thereof. The preparation method provided by the invention has the advantages that the synthesis method of the diphenyl ether dianhydride is widened, the preparation process of the diphenyl ether dianhydride is simplified, the environmental pollution is reduced and a new method is provided for the industrial production of the diphenyl ether dianhydride.

The invention relates to a nontoxic degradable plastic which is prepared from the following raw materials in parts by weight: 20-30 parts of starch, 3-5 parts of antimicrobial agent, 4-9 parts of ethylene-vinyl acetate copolymer, 2-8 parts of hesperetin, 2-6 parts of dibutyltin dilaurate, 1-4 parts of triphenyl phosphate, 5-10 parts of linear low-density polyethylene, 2-7 parts of polypropylene, 1-5 parts of antioxidant, 8-10 parts of octabromo diphenyl ether, 5-9 parts of terephthalyl alcohol, 2-7 parts of tartaric acid and 5-10 parts of sodium carbonate. The degradable plastic has the advantages of no toxicity or harm and high degradation rate, and does not influence the environment during and after degradation.