Fragrance delivery system
View Patent ↗A fragrance delivery system comprises a suspension concentrate including a suspending matrix and a fragrance material which system can be diluted with water to form a use composition such as a body wash formulation.
1. A fragrance delivery system comprising, by weight:
(a) 1 to 25% of an active fragrance,
(b) 75 to 99% of a suspension concentrate matrix including:
(i) a water-insoluble alkylated graft copolymer of polyvinyl pyrrolidone,
(ii) an anionic polymeric dispersant comprising an aqueous solution of methyl vinyl ether/maleic acid/butyl/ethyl half ester, partially neutralized with sodium hydroxide, and
(iii) water.
2. A fragrance delivery system according to claim 1 wherein (a) is 5-10%; (b) (i) is 3-15%; (b) (ii) is 0.1-5%.
3. A fragrance delivery system according to claim 2 wherein (b) (i) is 8-12% and (b) (ii) is 0.5-2.5%.
4. A fragrance delivery system according to claim 1 wherein (b) (i) is a C 16 -alkylated copolymer in a weight ratio of 80% C 16 alkyl to 20% vinyl pyrrolidone.
5. A fragrance delivery system according to claim 1 wherein (b) (ii) is a 25% solids solution.
6. A fragrance delivery system according to claim 1 wherein (b) is a fine suspension matrix having a particle size of 5μ or less.
7. A fragrance delivery system according to claim 6 wherein said particle size is 1μ or less.
8. A fragrance delivery system according to claim 7 wherein said particle size is less than 1μ.
9. A use composition comprising the fragrance delivery system of claim 1 and water of dilution in a range of 1:10 to 1:1000.
10. A use composition according to claim 9 which is a body wash, detergent, gel, shampoo, conditioner or fabric softener formulation.