IP Library › Granted Patent US 12662651
Granted Patent B2
US 12662651 · App. 17/755,497 · Granted Jun 23, 2026

Soap composition

Inventors: Pabitra Ghosh (Singapore, SG); Jane Tang (Singapore, SG); Aparna Vittal (Singapore, SG); Bhavesh Mandhane (Andheri East, IN)
Assignee: FIRMENICH SA
C11D9/442C11D9/12C11D9/16C11D9/20
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12662651
App. No.
17/755,497
Granted
Jun 23, 2026
Kind
B2
Abstract

Disclosed herein is a soap composition including a soap active material and a fragrance composition including at least one profragrance compound, where the at least one profragrance compound releases a fragrance compound upon reacting with oxygen. Also disclosed herein is a soap article including the soap composition as well as a method of conferring, improving, enhancing or modifying perfume retention of the fragrance composition over a prolonged period of time in a soap composition.

Claims (27)

1 . A soap composition comprising

a soap active material comprising a sodium salt of a fatty acid in an amount of 40-92 wt % based on the soap composition; and

a fragrance composition comprising at least one profragrance compound, wherein the at least one profragrance compound releases a fragrance compound upon reacting with oxygen;

wherein the profragrance compound is selected from the group consisting of

wherein R represents a C 1 -C 20 alkyl or alkenyl.

2 . The soap composition according to claim 1 ,

wherein the fragrance composition is present in an amount of from 0.01 to 10 wt %, based on a total weight of the soap composition.

3 . The soap composition according to claim 1 ,

wherein the profragrance compound is present in an amount of from 0.000001 to 1 wt %, based on a total weight of the soap composition.

4 . The soap composition according to claim 1 , further comprising a filler.

5 . The soap composition according to claim 4 , wherein the filler is one or more compounds selected from the group consisting of TiO 2 , talc, sodium sulphate, sodium carbonate, sodium phosphate and sugar.

6 . A soap article comprising

a soap composition according to claim 1 .

7 . The soap article according to claim 6 , in a form of a liquid cleanser, a toilet bar, a laundry bar, a shaving composition, a personal cleansing composition, a body care product, or a shampoo.

8 . A method for conferring, improving, enhancing or modifying fragrance intensity of a fragrance composition on a skin surface or in air surrounding the skin, a surface or a soap article over a prolonged period of time, under ambient conditions, wherein the method comprises a step of applying a soap composition according to claim 1 to the skin, the surface or air.

9 . A method of conferring, improving, enhancing or modifying perfume retention of a fragrance composition over a prolonged period of time, in a soap composition or a soap article during storage, wherein the method comprises a step of incorporating a profragrance according to claim 1 in the soap composition or the soap article.

10 . A method for conferring, improving, enhancing or modifying fragrance intensity of a fragrance composition on a skin surface or in air surrounding the skin, a surface or a soap article over a period of time of 48 hours, under ambient conditions, wherein the method comprises a step of applying a soap composition according to claim 1 to the skin, the surface or air.

11 . A method of conferring, improving, enhancing or modifying perfume retention of a fragrance composition over a period of time of 18 months, in a soap composition or a soap article during storage, wherein the method comprises a step of incorporating a profragrance according to claim 1 in the soap composition or the soap article.

12 . The soap composition according to claim 1 ,

wherein the profragrance compound is selected from the group consisting of

wherein R represents a C 6 -C 15 alkyl or alkenyl.

13 . The soap composition according to claim 1 ,

wherein the fragrance composition is present in an amount of from 0.1 to 3 wt %, based on a total weight of the soap composition.

14 . The soap composition according to claim 1 ,

wherein the profragrance compound is present in an amount of from 0.00001 to 0.1 wt %, based on a total weight of the soap composition.

15 . The soap composition according to claim 1 , further comprising a filler, wherein the filler is present in an amount of from 0.002 to 35 wt %.

16 . The soap article according to claim 6 , in a form of a liquid cleanser, a toilet bar, a soap-based or syndet-based laundry bar, a shaving composition, a personal cleansing composition, a body care product, or a shower gel.