Patent US4169064A successfully refreshed from Google Patents.
US4169064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent compositions containing starch
Assignee: Procter and Gamble Co
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Filing: 1977-12-23
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Granted: 1979-09-25
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Expires: 1997-12-23
Abstract
Abstract Laundry detergent compositions comprising an organic surface-active agent and low concentrations of substantially water-insoluble starch, the starch being added to the compositions as an intimate comixture with polyethylene glycol having a molecular weight of from about 400 to about 50,000, are disclosed. These compositions impart anti-wrinkling and ease-of-ironing benefits to fabrics laundered with them.
Inventors
- 👤 John A. Sagel
- 👤 Edward J. Wandstrat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:49
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/22; C11D3/222
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
112 words
A laundry detergent composition comprising: (a) from about 4% to about 60% by weight of an organic surface-active agent selected from the group consisting of anionic, nonionic, zwitterionic, and ampholytic detergents, and mixtures thereof; and (b) from about 0.1% to about 8% by weight of an intimate comixture of granular, substantially water-insoluble starch having an average particle diameter of from about 1 to about 45 micrometers and a swelling power of less than about 15 at a temperature of 65° C., and polyethylene glycol having a molecular weight of from about 400 to about 50,000, wherein the ratio by weight of starch to polyethylene glycol is from about 10:1 to about 1:25.
Claim 2
Dependent Claim
112 words
A laundry detergent composition comprising: (a) from about 4% to about 60% by weight of an organic surface-active agent selected from the group consisting of anionic, nonionic, zwitterionic, and ampholytic detergents, and mixtures thereof; and (b) from about 0.1% to about 8% by weight of an intimate comixture of granular, substantially water-insoluble starch having an average particle diameter of from about 1 to about 45 micrometers and a swelling power of less than about 15 at a temperature of 65° C., and polyethylene glycol having a molecular weight of from about 400 to about 50,000, wherein the ratio by weight of starch to polyethylene glycol is from about 10:1 to about 1:25.
Claim 3
Dependent Claim
21 words
A composition according to claim 1 wherein the polyethylene glycol has a molecular weight of from about 400 to about 3,000.
Claim 4
Dependent Claim
26 words
A composition according to claim 2 wherein said comixture of starch and polyethylene glycol is sprayed onto the remainder of the detergent composition in granular form.
Claim 5
Dependent Claim
21 words
A composition according to claim 1 wherein the polyethylene glycol has a molecular weight of from about 3,000 to about 20,000.
Claim 6
Dependent Claim
24 words
A composition according to claim 4 which contains from about 0.5% to about 3% by weight of the comixture of starch and polyethylene glycol.
Claim 7
Dependent Claim
21 words
A composition according to claim 5 wherein the ratio of starch to polyethylene glycol is from about 3:1 to about 1:5.
Claim 8
Dependent Claim
21 words
A composition according to claim 4 wherein the polyethylene glycol has a molecular weight of from about 3,600 to about 9,000.
Claim 9
Dependent Claim
24 words
A composition according to claim 7 which contains from about 0.5% to about 3% by weight of the comixture of starch and polyethylene glycol.
Claim 10
Dependent Claim
21 words
A composition according to claim 8 wherein the ratio of starch to polyethylene glycol is from about 3:1 to about 1:5.
Claim 11
Dependent Claim
21 words
A composition according to claim 9 wherein the ratio of starch to polyethylene glycol is from about 2:1 to about 1:2.
Claim 12
Dependent Claim
14 words
A composition according to claim 1 in which the granular starch is corn starch.
Claim 13
Dependent Claim
21 words
A composition according to claim 11 wherein the polyethylene glycol has a molecular weight of from about 3,600 to about 9,000.
Claim 14
Dependent Claim
21 words
A composition according to claim 12 wherein the ratio of starch to polyethylene glycol is from about 2:1 to about 1:2.
Claim 15
Dependent Claim
21 words
A composition according to claim 13 wherein the polyethylene glycol has a molecular weight of from about 6,000 to about 7,500.
Claim 16
Dependent Claim
24 words
A composition according to claim 14 which contains from about 1% to about 2% by weight of the comixture of starch and polyethylene glycol.
Claim 17
Dependent Claim
28 words
A composition according to claim 4 wherein the starch and polyethylene glycol components are formed into a coflake which is admixed with the remainder of the detergent composition.
Claim 18
Dependent Claim
28 words
A composition according to claim 4 wherein the starch and polyethylene glycol components are formed into a prill which is admixed with the remainder of the detergent composition.
Claim 19
Dependent Claim
45 words
A method for treating fabrics to simultaneously clean and impart anti-wrinkling, ease of ironing, softening and static control properties, said method comprising the agitation of the fabrics in an aqueous solution containing from about 0.01% to about 0.3% of the detergent composition of claim 1.
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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) | 1982-09-24 | 1983-03-26 | 1983-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-24 | 1987-03-26 | 1987-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-24 | 1991-03-26 | 1991-09-25 | $7700.00 | Window Closed / Lapsed |