Patent US4636330A successfully refreshed from Google Patents.
US4636330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perfume depositing detergents containing perfume in a particulate matrix of a cationic compound
Assignee: Lever Brothers Co
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Filing: 1985-01-25
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Granted: 1987-01-13
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Expires: 2005-01-25
Abstract
Abstract A material for depositing perfume on a surface comprises particles having a size of 0.1 to 2000 microns, the particles containing a perfume and a matrix material, the matrix material being a cationic component, optionally together with a nonionic component. When the nonionic component is present the cationic to nonionic ratio is at least 5:1. The particles may be incorporated in a solid or liquid fabric washing detergent composition or hard surface cleaner. Suitable cationic materials include quaternary ammonium compounds. Suitable nonionic materials include esters of polyhydric alcohols, fatty alcohols and derivatives thereof. Compared to products containing the same amount of perfume in the free state, the products of the invention give improved deposition and perfume retention on the treated surfaces.
Inventors
- 👤 James B. Melville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:13
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/50; C11D3/502; C11D3/505
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
146 words
A method of depositing perfume on a fabric surface, comprising contacting the surface with an aqueous composition comprising an effective amount for cleaning of an anionic detergent active material and from about 0.005 g/liter to about 0.3 g/liter, based on the volume of the aqueous composition, of particles having an average size of from about 0.1 to about 2,000 microns, said particles comprising a matrix material and a perfume, characterized in that said particles are an intimate mixture comprising: (a) from about 0.5% to about 50% by weight of a perfume component; (b) from about 22% to about 99.5% by weight of a cationic component; and optionally (c) from about 0% to about 16.6% by weight of a nonionic component; the ratio by weight of the cationic to the nonionic component, when present, being at least 5:1; and wherein the fabric is dried by line drying.
Claim 2
Independent Claim
146 words
A method of depositing perfume on a fabric surface, comprising contacting the surface with an aqueous composition comprising an effective amount for cleaning of an anionic detergent active material and from about 0.005 g/liter to about 0.3 g/liter, based on the volume of the aqueous composition, of particles having an average size of from about 0.1 to about 2,000 microns, said particles comprising a matrix material and a perfume, characterized in that said particles are an intimate mixture comprising: (a) from about 0.5% to about 50% by weight of a perfume component; (b) from about 22% to about 99.5% by weight of a cationic component; and optionally (c) from about 0% to about 16.6% by weight of a nonionic component; the ratio by weight of the cationic to the nonionic component, when present, being at least 5:1; and wherein the fabric is dried by line drying.
Claim 3
Independent Claim
148 words
A method of depositing perfume on a fabric surface, comprising contacting the surface with an aqueous composition comprising an effective amount for cleaning of an anionic detergent active material and from about 0.005 g/liter to about 0.3 g/liter, based on the volume of the aqueous composition, of particles having an average size of from about 0.1 to about 2,000 microns, said particles comprising a matrix material and a perfume, characterized in that said particles are an intimate mixture comprising: (a) from about 0.5% to about 50% by weight of a perfume component; (b) from about 22% to about 99.5% by weight of a cationic component; and optionally (c) from about 0% to about 16.6% by weight of a nonionic component; the ratio by weight of the cationic component to the nonionic component ranging from about 6:1 to about 12:1; and wherein the fabric is dried by line drying.
Claim 4
Independent Claim
148 words
A method of depositing perfume on a fabric surface, comprising contacting the surface with an aqueous composition comprising an effective amount for cleaning of an anionic detergent active material and from about 0.005 g/liter to about 0.3 g/liter, based on the volume of the aqueous composition, of particles having an average size of from about 0.1 to about 2,000 microns, said particles comprising a matrix material and a perfume, characterized in that said particles are an intimate mixture comprising: (a) from about 0.5% to about 50% by weight of a perfume component; (b) from about 22% to about 99.5% by weight of a cationic component; and optionally (c) from about 0% to about 16.6% by weight of a nonionic component; the ratio by weight of the cationic component to the nonionic component ranging from about 6:1 to about 12:1; and wherein the fabric is dried by line drying.
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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) | 1990-01-12 | 1990-07-14 | 1991-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-12 | 1994-07-14 | 1995-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-12 | 1998-07-14 | 1999-01-13 | $7700.00 | Window Closed / Lapsed |