Patent ID: 9233353
Filing Date: 2016-01-12
CPC Classification: B01J,C11D

Claim Text:
1. A microcapsule comprising a core a) which comprises a fragrance or odorant, and a shell b), b) being obtained by polymerizing one or more C 1 -C 24 -alkyl ester(s) of acrylic acid or methacrylic acid, MAA, and one or more compound selected from the group consisting of BDA2, PETIA and EDGMA, wherein the shell comprises 20 to 60% by mass of MAA in copolymerized form; wherein BDA2, PETIA, or EDGMA, if present, is present in an amount of 10 to 50% by mass in copolymerized form; and wherein the total amount of BDA2, PETIA and EDGMA in the shell in copolymerized form is at least 30% by mass; wherein the fragrance or odorant is selected from the group consisting of 7-acetyl-1,2,3,4,5,6,7,8-octahydro-1,1,6,7-tetramethylnaphthalene, α-ionone, β-ionone, γ-ionone, α-isomethylionone, methyl cedryl ketone, methyl dihydrojasmonate, methyl 1,6,10-trimethyl-2,5,9-cyclododecatrien-1-yl ketone, 7-acetyl-1,1,3,4,4,6-hexamethyl-tetralin, 4-acetyl-6-tert-butyl-1,1-dimethylindane, hydroxyphenylbutanone, benzophenone, methyl β-naphthyl ketone, 6-acetyl-1,1,2,3,3,5-hexamethylindane, 5-acetyl-3-isopropyl-1,1,2,6-tetramethylindane, 1-dodecanal, 4-(4-hydroxy-4-methylpentyl)-3-cyclohexene-1-carboxaldehyde, 7-hydroxy-3,7-dimethyloctanal, 10-undecen-1-al, isohexenylcyclohexylcarboxaldehyde, formyltricyclodecane, condensation products of hydroxycitronellal and methyl anthranilate, condensation products of hydroxycitronellal and indole, condensation products of phenylacetaldehyde and indole, 2-methyl-3-(para-tert-butyl-phenyl)propionaldehyde, ethylvanillin, heliotropin, hexylcinnamaldehyde, amylcinnamaldehyde, 2-methyl-2-(iso-propylphenyl)propionaldehyde, coumarin, decalactone-γ, cyclopentadecanolide, 16-hydroxy-9-hexadecenolactone, 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta-γ-2-benzopyran, β-naphthol methyl ether, ambroxan, dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,lb]furan, cedrol, 5-(2,2,3-trimethylcyclopent-3-enyl)-3-methylpentan-2-ol, 2-ethyl-4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-2-buten-1-ol, caryophyllene alcohol, tricyclodecenyl propionate, tricyclodecenyl acetate, benzyl salicylate, cedrol acetate, and tert-butylcyclohexyl acetate.