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191 results about "Benzyl acetate" patented technology

Benzyl acetate is an organic ester with the molecular formula C₉H₁₀O₂. It is formed by the condensation of benzyl alcohol and acetic acid. Similar to most other esters, it possesses a sweet and pleasant aroma, owing to which, it finds applications in personal hygiene and health care products. It is a constituent of jasmin and of the essential oils of ylang-ylang and neroli. It has pleasant sweet aroma reminiscent of jasmine. Further as a flavoring agent it is also used to impart jasmine or apple flavors to various cosmetics and personal care products like lotions, hair creams etc..

Fragrance compositions

A method of promoting activated, pleasant moods through the inhalation of energising, non-stressing fragrances (invigorating fragrances) comprising at least 75% by weight, preferably 85% by weight of perfume materials drawn from the following groups:
  • A) At least 10% by weight in total of at least three materials drawn from Group ‘IMP’ comprising: allyl amyl glycolate; benzyl salicylate; bergamot oil; coriander oil; cyclamen aldehyde; 1-(2,6,10-trimethylcyclododeca-2,5,9-trien-1-yl)ethanone; allyl (cyclohexyloxy)acetate; Damascenia 185 SAE; 2,4-dimethylheptan-1-ol; fir balsam; fir needle oil; 3-(4-ethylphenyl)-2,2-dimethylpropanal; ginger oil; guaiacwood; linalyl acetate; litsea cubeba oil; methyl 2,4-dihydroxy-3,6-dimethylbenzoate; nutmeg oil; olibanum oil; orange flower oil; Ozonal AB 7203C; patchouli oil; rose oxide; rosemary oil; sage clary oil; spearmint oil; Tamarine AB 8212E; tarragon oil;
  • B) Optionally up to 90% of materials from the following groups:
    • Group ‘HMR’ comprising:
    • allyl ionone; benzyl acetate; cis-jasmone; citronellol; ethyl linalol; ethylene brassylate; 4-methyl-2-(2-methylpropyl)tetrahydro-2H-pyran-4-ol; geraniol; geranium oil; isoeugenol; lemon oil; 2,4-dimethylcyclohex-3-ene-1-carbaldehyde; 3-(4-hydroxy-4-methylpentyl)cyclohex-3-ene-1-carbaldehyde; 4-(4-hydroxy-4-methylpentyl)cyclohex-3-ene-1-carbaldehyde; alpha-iso-methyl ionone; 3-methylcyclopentadec-2-en-1-one; cyclopentadecanone; cyclohexadecanolide; gamma-undecalactone.
    • Group ‘HMI’ comprising:
    • 1-{[2-(1,1 -dimethylethyl)cyclohexyl]oxy}butan-2-ol; 3a,6,6,9a-tetramethyldodecahydronaphtho[2,1 -{b}]furan; alpha-damascone; dihydromyrcenol; eugenol; 3-(1,3-benzodioxol-5-yl)-2-methylpropanal; 2,4-dimethylcyclohex-3-ene-1-carbaldehyde; mandarin oil; orange oil; 2-(1,1-dimethylethyl)cyclohexyl acetate.
    • Group ‘HMP’ comprising:
    • 1-(2,6,6,8-tetramethyltricyclo[5.3.1.0 {1,5}]undec-8-en-9-yl)ethanone; allyl cyclohexyl propionate; allyl heptanoate; Apple Oliffac S pcmf; 7-methyl-2H-1,5-benzodioxepin-3(4H)-one; cassis base; cis-3-hexenyl salicylate; damascenone; gamma-decalactone; ethyl acetoacetate; ethyl maltol; ethyl methyl phenylglycidate; hexyl acetate; (3E)-4-methyldec-3-en-5-ol; 2,5,5-trimethyl-6,6-bis(methyloxy)hex-2-ene; 4-(4-hydroxyphenyl)butan-2-one; styrallyl acetate; 2,2,5-trimethyl-5-pentylcyclopentanone; ylang oil. Group ‘RMP’ comprising: anisic aldehyde; (2Z)-2-ethyl-4-(2,2,3-trimethylcyclopent-3-en-1-yl)but-2-en-1-ol; benzoin siam resinoid; ethyl vanillin; oxacyclohexadec-12(13)-en-2-one; hexyl salicylate; hydroxycitronellal; jasmin oil; 3-methyl-5-phenylpentan-1-ol; 2-(phenyloxy)ethyl 2-methylpropanoate; alpha-terpineol; vanillin;
    • Group ‘GEN’ comprising:
    • cyclopentadecanolide; oxacyclohexadecan-2-one; hexyl cinnamic aldehyde; ionone beta; isobornyl cyclohexanol; 1-(2,3,8,8-tetramethyl-1,2,3,4,5,6,7(8),8(8a)-octahydronaphthalen-2-yl)ethanone; 4-(1,1-dimethylethyl)phenyl]-2-methylpropanal; linalol; methyl dihydrojasmonate; 2-phenylethanol;
    • provided the following conditions are met:
    • (a) IMPs>=HMPs+HMRs
    • (b) IMPs+HMIs+GENs>=70%
    • (c) (IMP+HMI)/(IMP+HMI+RMP+HMR)>=0.7
    • (d) IMPs/(HMPs+RMPs+IMPs)>=0.5
    • (e) IMPs/[(HMPs+RMPs+IMPs)+(100−TOTAL)]>=0.3
    • wherein ‘IMPs’ indicates the sum of the percentages of materials within Group IMP, and similarly for the remaining groups, the symbol ‘>=’ indicates ‘at least equal to’, and ‘TOTAL’ is the sum of HMPs, HMRs, HMIs, IMPs, RMPs and GENs, provided also that low odour or no odour solvents are excluded from the calculation of these sums is provided which have an invigorating effect when inhaled by a subject.
Owner:GIVAUDAN NEDERLAND SERVICES

Method for preparing benzyl acetate by using waste reaction liquid generated in acetate production

The invention relates to the technical field of benzyl acetate synthesis and in particular relates to a method for preparing benzyl acetate by using waste reaction liquid generated in acetate production. Benzyl acetate is prepared by steps of treating the waste reaction liquid, performing acid-base reaction, performing esterification reaction, desalting and rectifying. According to the method, benzyl acetate is prepared from acetic acid in the waste reaction liquid during the acetate production, so that the waste resources can be fully utilized, the resource waste can be reduced, and the environmental pollution caused by the acetate production can be alleviated; in addition, as a raw material is the waste reaction liquid generated in the acetate production, the production cost of benzyl acetate can be greatly reduced and the development requirements of environment-friendly and low-cost synthetic routes can be met; in a process of converting the waste reaction liquid into a reactant, heat emitted in the reaction between acetic acid and sodium hydroxide is fully utilized, the energy consumed for heating a sodium acetate solution is reduced, and the purposes of energy conservation and environmental protection are reached; benzyl acetate with the purity higher than 98% still can be prepared from the waste reaction liquid, and the product quality is ensured.
Owner:ZHUHAI FEIYANG NOVEL MATERIALS

Preparation method of benzyl acetate

The invention discloses a preparation method of benzyl acetate. The method comprises the following steps: enabling organic amine to react with excessive benzyl chloride at the temperature of 60-90 DEG C for 15-60 min so as to obtain a phase transfer catalyst feed solution; adding sodium acetate, water and sodium carbonate into the phase transfer catalyst feed solution for performing esterification reaction so as to obtain a first crude product of the benzyl acetate; washing the first crude product of the benzyl acetate with water so as to obtain a second crude product of the benzyl acetate; performing impurity removal treatment on the second crude product of the benzyl acetate so as to obtain a third crude product of the benzyl acetate; performing secondary rectification and refining operation on the third crude product of the benzyl acetate so as to obtain the pure product of the benzyl acetate. According to the invention, a homemade phase transfer catalyst is used for reaction, so that the cost is reduced, the complexity of a process route is greatly reduced, the by-product, that is benzyl alcohol, is translated into the benzyl acetate product, and the reaction yield and the conversion rate are effectively increased. The characteristics of high yield, good purity, and pure fragrance of the product are achieved.
Owner:FUZHOU FUDA HUIXIANG CHEM TECH

Osmanthus flower essence containing natural osmanthus flower fragrance and preparation method thereof

The invention discloses an osmanthus flower essence containing natural osmanthus flower fragrance and a preparation method thereof. The osmanthus flower essence mainly comprises natural osmanthus flower fragrance extract, leaf alcohol, isoamyl acetate, cis-3-hexenyl acetate, d-limonene, linalool oxide, linalool, phenethyl alcohol, benzyl acetate, ethyl maltol-1, citronellol, ethyl phenylacetate, geraniol, phenethyl acetate, eugenol, alpha-ionone, dihydro-beta-ionone, gamma-decalactone, beta-ionone, delta-dodecalactone, edible alcohol and like components. The above preparation has the following advantages: the osmanthus flower fragrance extract obtained by low-temperature vacuum distillation serves as a key raw material, and the osmanthus flower essence is prepared by means of an analog-matching formulation. The osmanthus flower essence is featured with verisimilar fragrance, rich body fragrance, strong natural feeling and lasting base fragrance, is applied to food and beverage as food additive, and can bring product natural osmanthus flower fragrance and mouth feel; and meanwhile the fragrance quality and fragrance amount of the osmanthus flower essence are higher than like essence products at home.
Owner:HANGZHOU EVER MAPLE FLAVOR & FRAGRANCE
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