US5336665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perfume particles
Assignee: Lever Brothers Co
•
Filing: 1993-08-09
•
Granted: 1994-08-09
•
Expires: 2013-08-09
Abstract
Abstract A hydrophobic porous inorganic carrier particle having at least a pore volume of 0.1 ml/g consisting of pores with a diameter of 7 to 50 ANGSTROM and having a perfume absorbed into said particle. The invention also comprises a detergent composition containing the carrier particle and a method of manufacturing the carrier particle.
Inventors
- 👤 Peter F. Garner-Gray
- 👤 Alexander Martin
- 👤 John R. Martin
- 👤 Maurice Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:56
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/50; A; A61; A61K; A61K8/00; A61K8/02; A61K8/0241; A23; A23L; A23L27/00; A23L27/70; A23L27/77; A61Q; A61Q13/00; C11D3/502; C11D3/505; A61K2800/00; A61K2800/40; A61K2800/56; A61Q15/00; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
34 words
A hydrophobic porous inorganic carrier particle having at least a pore volume of 0.1 ml/g consisting of pores with a diameter of 7 to 50 Å and having a perfume absorbed into said particle.
Claim 2
Dependent Claim
34 words
A hydrophobic porous inorganic carrier particle having at least a pore volume of 0.1 ml/g consisting of pores with a diameter of 7 to 50 Å and having a perfume absorbed into said particle.
Claim 3
Dependent Claim
39 words
A hydrophobic carrier as claimed in claim 1 wherein the particle has at least a pore volume of 0.2 ml/g consisting of pores with a diameter of 7 to 50 Å and having a perfume absorbed into said particle.
Claim 4
Dependent Claim
31 words
A hydrophobic carrier as claimed in claim 1 wherein the particle has at least a pore volume of 0.1 ml/g consisting of pores with a diameter of 11 to 40 Å.
Claim 5
Dependent Claim
23 words
A hydrophobic carrier as claimed in claim 1 wherein the particle has a carrier to perfume ratio by weight of less than 25:1.
Claim 6
Dependent Claim
13 words
A hydrophobic carrier as claimed in claim 1 wherein the carrier comprises silica.
Claim 7
Dependent Claim
49 words
A detergent composition comprising at least one surfactant and from 0.1 to 60% by weight of hydrophobic porous inorganic carrier particles having a pore volume of at least 0.1 ml/g consisting of pores with a diameter of 7 to 50 Å and having a perfume absorbed into said particle.
Claim 8
Dependent Claim
49 words
A detergent composition comprising at least one surfactant and from 0.1 to 60% by weight of hydrophobic porous inorganic carrier particles having a pore volume of at least 0.1 ml/g consisting of pores with a diameter of 7 to 50 Å and having a perfume absorbed into said particle.
Claim 9
Independent Claim
70 words
A method of making a hydrophobic, porous inorganic carrier particle having at least a pore volume of 0.1 ml/g consisting of pores with a diameter of 7 to 50 Å and having a perfume absorbed into said particle comprising the steps of: (i) heating a suitable inorganic carrier at a temperature of from 500° C. to 1000° C. for up to 3 hours; and (ii) treating the carrier with perfume.
Claim 10
Independent Claim
70 words
A method of making a hydrophobic, porous inorganic carrier particle having at least a pore volume of 0.1 ml/g consisting of pores with a diameter of 7 to 50 Å and having a perfume absorbed into said particle comprising the steps of: (i) heating a suitable inorganic carrier at a temperature of from 500° C. to 1000° C. for up to 3 hours; and (ii) treating the carrier with perfume.
References Cited (Backward Citations)
FR1408422A
Cited
US3436225A
Cited
US3449266A
Cited
FR1558480A
Cited
GB1306924A
Cited
GB1374105A
Cited
GB1570608A
Cited
US4212759A
Cited
GB2066839A
Cited
US5011690A
Cited
EP0332259A2
Cited
EP0332260A2
Cited
US4954285A
Cited
US4973422A
Cited
US5112688A
Cited
US5078904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-08-08 | 1998-02-07 | 1998-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-08 | 2002-02-07 | 2002-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-08 | 2006-02-07 | 2006-08-09 | $7700.00 | Window Closed / Lapsed |