To obtain a fragrance preservative enabling its initial fragrant tone to be sustained for a long period of time, and when formulated in a detergent, capable of leaving fragrance on objects even after laundered with the detergent thus formulated therewith by using a polymer having phosphorylcholine- analogous group on the side chain.
This fragrance preservative comprises a polymer having phosphorylcholine-analogous group of formula I (R1 to R3 are each H or a 1-8C alkyl; m is 1-4) on the side chain; wherein the polymer is pref. a homopolymer of a monomer having the group of formula I and radical- polymerizable double bond in the molecule, for example, a monomer of formula II [R1 to R3 are each 1-8C alkyl; R4 is H pr methyl; R5 has a group of (BO)jB (B is a 2-4C alkylene; O is oxygen atom; j is 0-8)], or a copolymer of the monomer and another radical-polymerizable monomer, and the (co)polymer is pref. 10,000-5,000,000 in weight-average molecular weight. This fragrance preservative is effectively usable, in particular for pets, in skin preparations for external use and detergents.
YANO YOSHIHIRO
FUKUDA NOBUO
NAKABAYASHI NORIO
ISHIHARA KAZUHIKO
ISHIHARA KAZUHIKO
NAKABAYASHI NORIO
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