Laundry scent additive

• US 9,708,574 B2
• Filed: 06/03/2013
• Issued: 07/18/2017
• Est. Priority Date: 11/05/2009
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Aouad, Yousef Georges
• Primary Examiner(s): Reuther, Lanee
• Application Number:
  US13/908,514
• Publication Number:
  US 20130267454A1
• Time in Patent Office: 1,506 Days
• Field of Search: 512 4
• CPC Class Codes: A61K 8/84 obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
• CPC Class Codes: B29C 41/02 for making articles of definite length, i.e. discrete articles
• CPC Class Codes: B65D 83/06 for dispensing powdered or granular material B65D83/04 takes precedence
• CPC Class Codes: C11D 17/046 Insoluble free body dispenser
• CPC Class Codes: C11D 2111/12 Soft surfaces, e.g. textile
• CPC Class Codes: C11D 3/128 Aluminium silicates, e.g. zeolites C11D3/1253 takes precedence
• CPC Class Codes: C11D 3/2068 Ethers
• CPC Class Codes: C11D 3/2072 Aldehydes-ketones
• CPC Class Codes: C11D 3/2093 Esters; Carbonates
• CPC Class Codes: C11D 3/3707 Polyethers, e.g. polyalkyleneoxides
• CPC Class Codes: C11D 3/40 Dyes ; Pigments
• CPC Class Codes: C11D 3/505 encapsulated or adsorbed on a carrier, e.g. zeolite or clay
• CPC Class Codes: D06M 13/005 Compositions containing perfumes; Compositions containing deodorants
• CPC Class Codes: D06M 15/53 Polyethers polyacetals D06M15/39
• CPC Class Codes: D06M 23/12 Processes in which the treating agent is incorporated in microcapsules making microcapsules B01J13/02

Abstract

A laundry scent additive having polyethylene glycol and perfume. The laundry scent additive enables consumers to control the amount of scent imparted to their laundry.

Claims

1. A composition comprising:

(a) polyethylene glycol;

(b) from about 2% to about 12% by weight of said composition of free perfume; and

(c) from about 2% to about 12% by weight of said composition of friable perfume microcapsule, wherein said friable perfume microcapsule comprises encapsulated perfume;

wherein said composition is shaped in a pastille having a mass from about 0.95 mg to about 2 g;

wherein said pastille has a shape selected from the group consisting of hemispherical and compressed hemispherical;

wherein said pastille is packaged in a package and a dispensing cap is releasably detachable from and reattachable to said package; and

wherein said package comprises a translucent portion and said pastille is viewable to a consumer.

2. The composition of claim 1, wherein said composition comprises from about 65% to about 99% by weight of said composition of polyethylene glycol.

3. The composition of claim 1, wherein said polyethylene glycol has a molecular weight from about 3,000 to about 13,000.

4. The composition of claim 1, wherein said composition comprises from about 80% to about 95% by weight of said composition of polyethylene glycol.

5. The composition of claim 4, wherein said friable perfume microcapsule comprises a melamine/formaldehyde shell.

6. The composition of claim 4, wherein said friable perfume microcapsule encapsulates from about 0.6% to about 4% by weight of said composition of perfume.

7. The composition of claim 1, wherein said pastille has a shape of compressed hemispherical.

8. The composition according to claim 7, wherein said pastille has a ratio of height to diameter of about 0.1 to about 0.4.

9. The composition of claim 1, wherein said pastille has a maximum dimension less than about 1 centimeter.

10. A method of treating laundry comprising the step of dosing from about 13 g to about 27 g of a composition according to claim 1 to a laundry washing machine or a laundry wash basin.

11. The method of claim 10, wherein said composition is contained in a package, wherein said package comprises a dosing means, wherein the method further comprises the step of dispensing said fabric treatment composition contained in said package to said dosing means and thereafter dispensing said fabric treatment composition to said laundry washing machine or said laundry wash basin from the dosing means.

12. A method of making a composition comprising the steps of:

providing a viscous material having a glass transition temperature, said viscous material comprising;

(a) polyethylene glycol;

(b) free perfume; and

(c) perfume microcapsule, wherein said perfume microcapsule comprises encapsulated perfume;

providing said viscous material at a processing temperature less than about 20 degrees Celsius higher than said glass transition temperature; and

passing said viscous material through small openings and onto a moving conveyor surface upon which said viscous material is cooled below said glass transition temperature to form a plurality of pastilles;

wherein said pastilles have a shape of hemispherical or compressed hemispherical.

13. The method of claim 12, wherein said viscous material comprises from about 2% to about 10% by weight of said composition of free perfume.

14. The method of claim 12, wherein said viscous material comprises from about 2% to about 12% by weight of said composition of perfume microcapsule.

15. The method of claim 12, wherein said viscous material comprises from about 2% to about 10% by weight of said composition of free perfume and wherein said viscous material comprises from about 2% to about 12% by weight of said composition of perfume microcapsule.

16. The method of claim 15, wherein said polyethylene glycol has a molecular weight from about 3,000 to about 13,000.

17. The method of claim 12, wherein said perfume microcapsule is a friable microcapsule and comprises a melamine/formaldehyde shell.

18. The method of claim 17, wherein said perfume microcapsule encapsulates from about 0.6% to about 4% by weight of said composition of perfume.

19. The method of claim 12, wherein said pastilles have a maximum dimension less than about 1 centimeter.

20. The method of claim 12, wherein said pastilles have a mass from about 0.95 mg to about 2 g.