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US 12,677,927 B1Granted
Cosmetic container with protection against UV-light
AssigneeNexdot
InventorsMichele D'Amico, Yu-Pu Lin, Claire Wroblewski, Benoît Dubertret
Life of this patent
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Abstract
The present invention relates to a perfume bottle coated with a filtering film allowing protection of aroma compounds sensitive to UV-light.
Claims20
A perfume bottle comprising
- a glass container,
- a fragrancing composition in the glass container, said fragrancing composition comprising at least:
- i. 100 ppm of aroma compounds having an α,β-unsaturated carbonyl functional group, or
- ii. 50 ppm of aroma compounds being conjugated terpenes or conjugated terpenoids
- a filtering film on the glass container, said filtering film comprising compounds absorbing UV-light in a range from 300 nm to 380 nm and a binder, wherein the weighted mean absorbance A380 of the filtering film is greater than 2 with A380 defined by the following relation:
- A
- 3
-
- 8
-
- 0
- =
- ∫
- 3
-
- 0
-
- 0
- 3
-
- 8
-
- 0
- W
-
- (
- λ
- )
-
- A
-
- (
- λ
- )
-
- d
-
- λ
- ∫
- 3
-
- 0
-
- 0
- 3
-
- 8
-
- 0
- W
-
- (
- λ
- )
-
- d
-
- λ
- where A(λ) represents the absorbance of the filtering film at a given wavelength, and W(λ) represents a weighting function equal to the product of the solar spectrum irradiance ES(λ) and a sensitivity function S(λ) defined as a gaussian function with the peak centered at 300 nm and a standard deviation of 24 nm.
56 more elements
Dependencies are inferred from the claim text.