US4394127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of depositing perfume and compositions therefor
Assignee: Lever Brothers Co
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Filing: 1981-02-02
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Granted: 1983-07-19
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Expires: 2001-02-02
Abstract
Abstract A method of cleaning and depositing perfumes on a surface comprises contacting the surface with a liquor containing a surfactant having a size of 0.1 to 2000 microns and particles comprising a perfume and a water dispersible amine. The surfaces to be treated may be fabrics or hard surfaces. Preferred amines are the primary and tertiary alkyl amines, where one alkyl group has from 8 to 22 carbon atoms. The particles may be made by forming a liquid mixture of the amine and the perfume, and then solidifying and forming into particles. The particles may be incorporated in a variety of products including fabric washing powders and liquid, was-addable solids or liquids, and hard surface cleaning powders and liquids.
Inventors
- 👤 James B. Melville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:58
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/50; C11D3/502; C11D3/505; C11D1/00; C11D1/38; C11D1/40
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
220 words
A method of cleaning and depositing perfume on a fabric surface, comprising contacting the fabric surface with an aqueous composition containing a perfume and from about 0.05 g per liter to about 8.5 g per liter, based on the volume of the aqueous composition, of a water-soluble detergent active material, with or without a detergency builder, characterized in that the perfume is added to the aqueous composition in the form of from about 0.005 g per liter to about 0.3 g per liter, based on the volume of the aqueous composition of particles having an average size of from about 0.1 micron to about 2000 microns, the particles being an intimate mixture of (a) from about 0.5% to about 50% by weight, based on the weight of the particles, of a perfume component; and (b) from about 50% to about 99.5% by weight, based on the weight of the particles of a matrix comprising at least one water-dispersible amine of the formula R--N--R.sub.1 R.sub.2 where R is an alkyl or alkenyl group having 8 to 22 carbon atoms, R 1 is hydrogen or an alkyl or alkenyl group having 1 to 4 carbon atoms, and R 2 is hydrogen or an alkyl or alkenyl or amino-alkyl group having 1 to 22 carbon atoms, the matrix containing no added cationic material.
Claim 2
Independent Claim
220 words
A method of cleaning and depositing perfume on a fabric surface, comprising contacting the fabric surface with an aqueous composition containing a perfume and from about 0.05 g per liter to about 8.5 g per liter, based on the volume of the aqueous composition, of a water-soluble detergent active material, with or without a detergency builder, characterized in that the perfume is added to the aqueous composition in the form of from about 0.005 g per liter to about 0.3 g per liter, based on the volume of the aqueous composition of particles having an average size of from about 0.1 micron to about 2000 microns, the particles being an intimate mixture of (a) from about 0.5% to about 50% by weight, based on the weight of the particles, of a perfume component; and (b) from about 50% to about 99.5% by weight, based on the weight of the particles of a matrix comprising at least one water-dispersible amine of the formula R--N--R.sub.1 R.sub.2 where R is an alkyl or alkenyl group having 8 to 22 carbon atoms, R 1 is hydrogen or an alkyl or alkenyl group having 1 to 4 carbon atoms, and R 2 is hydrogen or an alkyl or alkenyl or amino-alkyl group having 1 to 22 carbon atoms, the matrix containing no added cationic material.
Claim 3
Dependent Claim
31 words
A method according to claim 1, characterized in that the aqueous composition is in contact with the fabric surface for a period of from about 1 minute to about 60 minutes.
Claim 4
Dependent Claim
33 words
A method according to claim 1 or 2, characterized in that the aqueous composition is in contact with the fabric surface at a temperature of between about 20° C. and about 90° C.
Claim 5
Dependent Claim
30 words
A method according to claim 1 characterized in that the aqueous composition is formed by adding to water a solid composition already containing the detergent active material and the particles.
Claim 6
Dependent Claim
31 words
A method according to claim 1 characterized in that the aqueous composition is formed by adding to water a concentrated liquid composition already containing the detergent active material and the particles.
Claim 7
Dependent Claim
42 words
A method according to claim 1 characterized in that the aqueous composition is formed by adding the particles to an aqueous medium already containing the detergent active material prior to or simultaneously with the contact between the composition and the fabric surface.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |