US4145184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent composition containing encapsulated perfume
Assignee: Procter and Gamble Co
•
Filing: 1975-11-28
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Granted: 1979-03-20
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Expires: 1995-11-28
Abstract
Abstract A detergent composition contains perfume in the form of water-insoluble, friable microcapsules which become entrained in or on fabric during a laundering process and which release the perfume during manipulation of the dry fabric.
Inventors
- 👤 Devin K. Brain
- 👤 Marian T. Cummins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:38
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/0039; C11D3/00; C11D3/50; C11D3/502; C11D3/505; Y; Y10; Y10S; Y10S428/00; Y10S428/905; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249994; Y10T428/249995; Y10T428/249997; Y10T428/29; Y10T428/2982; Y10T428/2984; Y10T428/2985; Y10T428/2987
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
63 words
A laundry detergent composition comprising: A laundry detergent composition comprising: (a) from 2% to 95% of a surfactant selected from the group consisting of anionic, nonionic, ampholytic and zwitterionic surfactants, and mixtures thereof; and (b) an effective amount of a perfuming agent comprising a perfume encapsulated in water insoluble, friable microcapsules having an average size of from about 5 to about 300 microns
Claim 2
Dependent Claim
63 words
A laundry detergent composition comprising: A laundry detergent composition comprising: (a) from 2% to 95% of a surfactant selected from the group consisting of anionic, nonionic, ampholytic and zwitterionic surfactants, and mixtures thereof; and (b) an effective amount of a perfuming agent comprising a perfume encapsulated in water insoluble, friable microcapsules having an average size of from about 5 to about 300 microns
Claim 3
Dependent Claim
39 words
A composition in accordance with claim 1 wherein the microcapsules have a shell wall material selected from the group consisting of polyurethane, polyolefin, polyamides, polyesters, polysaccharides, silicone resins, epoxy resins and aminoplast polymers derived from urea and an aldehyde.
Claim 4
Dependent Claim
16 words
A composition in accordance with claim 2 wherein said shell wall material is a urea-formaldehyde polymer.
Claim 5
Dependent Claim
24 words
A composition in accordance with claim 1 wherein the average size of the microcapsules is the range from about 10 to about 200 microns.
Claim 6
Dependent Claim
21 words
A composition in accordance with claim 4 wherein the microcapsules comprise from about 50% to about 85% by weight of perfume.
Claim 7
Dependent Claim
27 words
A composition in accordance with claim 1 wherein said microcapsules are present in the composition in an amount of from about 0.05% to about 5% by weight.
Claim 8
Dependent Claim
22 words
A composition in accordance with claim 6 wherein said microcapsules are present in an amount of from about 0.1% to about 1%.
Claim 9
Dependent Claim
70 words
A granular laundry detergent composition comprising: (a) from 10% to 25% of a surfactant selected from the group consisting of anionic, nonionic, ampholytic and zwitterionic surfactants, and mixtures thereof; and (b) from 10% to 60% of a detergency builder salt; and (c) an effective amount of a perfuming agent comprising a perfume encapsulated in water insoluble, friable microcapsules having an average size of from about 5 to about 300 microns.
Claim 10
Dependent Claim
70 words
A granular laundry detergent composition comprising: (a) from 10% to 25% of a surfactant selected from the group consisting of anionic, nonionic, ampholytic and zwitterionic surfactants, and mixtures thereof; and (b) from 10% to 60% of a detergency builder salt; and (c) an effective amount of a perfuming agent comprising a perfume encapsulated in water insoluble, friable microcapsules having an average size of from about 5 to about 300 microns.
Claim 11
Dependent Claim
39 words
A composition in accordance with claim 8 wherein the microcapsules have a shell was material selected from the group consisting of polyurethane, polyolefin, polyamides, polyesters, polysaccharides, silicone resins, epoxy resins and aminoplast polymers derived from urea and an aldehyde.
Claim 12
Dependent Claim
16 words
A composition in accordance with claim 9 wherein said shell wall material is a urea-formaldehyde polymer.
Claim 13
Dependent Claim
24 words
A composition in accordance with claim 10 wherein the average size of the microcapsules is the range from about 10 to about 200 microns.
Claim 14
Dependent Claim
22 words
A composition in accordance with claim 8 wherein said microcapsules are present in an amount of from about 0.1% to about 1%.
Claim 15
Dependent Claim
79 words
A liquid laundry detergent composition comprising: (a) from 20% to 50% of a surfactant selected from the group consisting of anionic, nonionic, ampholytic and zwitterionic surfactants, and mixtures thereof; and (b) an effective amount of a perfuming agent comprising a perfume encapsulated in water insoluble, friable microcapsules having an average size of from about 5 to about 300 microns; and (c) a liquid carrier selected from the group consisting of water, C 1 -C 3 alkanols and mixtures thereof.
Claim 16
Dependent Claim
79 words
A liquid laundry detergent composition comprising: (a) from 20% to 50% of a surfactant selected from the group consisting of anionic, nonionic, ampholytic and zwitterionic surfactants, and mixtures thereof; and (b) an effective amount of a perfuming agent comprising a perfume encapsulated in water insoluble, friable microcapsules having an average size of from about 5 to about 300 microns; and (c) a liquid carrier selected from the group consisting of water, C 1 -C 3 alkanols and mixtures thereof.
Claim 17
Dependent Claim
38 words
A composition according to claim 13 wherein the microcapsules have a shell wall material selected from the group consisting of polyurethane, polyolefin, polyamides, polyesters, polysaccharides, silicone resins, epoxy resins and aminoplast polymers derived from urea and an aldehyde.
Claim 18
Dependent Claim
15 words
A composition according to claim 14 wherein said shell wall material is a urea-formaldehyde polymer.
Claim 19
Dependent Claim
23 words
A composition according to claim 13 wherein the average size of the microcapsules is the range from about 10 to about 200 microns.
Claim 20
Dependent Claim
21 words
A composition according to claim 13 wherein said microcapsules are present in an amount of from about 0.1% to about 1%.
Claim 21
Dependent Claim
61 words
A process of treating fabrics comprising the steps of (a) washing said fabrics in an aqueous solution of the detergent composition of claim 1 whereby at least a portion of the microcapsules become associated with the fabrics; (b) drying said fabrics; and (c) manipulating said fabrics so as to rupture at least a portion of the microcapsules to release said perfume.
Claim 22
Dependent Claim
10 words
Fabrics when treated according to the process of claim 18.
References Cited (Backward Citations)
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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) | 1982-03-19 | 1982-09-18 | 1983-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-19 | 1986-09-18 | 1987-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-19 | 1990-09-18 | 1991-03-20 | $7700.00 | Window Closed / Lapsed |