US3625905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent composition having softening properties
Assignee: Purex Corp Ltd
•
Filing: 1967-11-22
•
Granted: 1971-12-07
•
Expires: 1987-11-22
Abstract
Abstract Simultaneous cleansing and softening of fabrics is achieved by use of an aqueous solution of a mixture of synthetic organic noncationic detergent and an alkali metal salt of isostearic acid as the fabric wash water.
Inventors
- 👤 Marvin C Weast
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:37
CPC Classifications
C; C11; C11D; C11D10/00; C11D10/04; C11D10/045; C11D10/042; C11D3/00; C11D3/0005; C11D3/001; C11D1/00; C11D1/02; C11D1/12; C11D1/14; C11D1/146; C11D1/22; C11D1/66; C11D1/72; C11D1/88
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
16 words
Method according to claim 1 in which the water is removed by spray drying the solution.
Claim 2
Dependent Claim
54 words
Detergent composition having both fabric cleaning and softening characteristics, which consists essentially of a mixture of a detergent selected from the group consisting of water soluble anionic, nonionic and amphoteric synthetic organic detergents and an alkali metal salt of isostearic acid in a weight ratio of 0.5:1 to 10:1 of detergent to said salt.
Claim 3
Dependent Claim
26 words
Detergent composition according to claim 3 in which said salt is an alkali metal salt selected from the group consisting of lithium, sodium and potassium salts.
Claim 4
Dependent Claim
14 words
Detergent composition according to claim 4 in which said salt is the sodium salt.
Claim 5
Dependent Claim
34 words
Detergent composition according to claim 3 including also C14 to C22 saturated fatty acids except C18 fatty acids in up to 60 weight percent of the total of fatty acids present in the composition.
Claim 6
Dependent Claim
14 words
Detergent composition according to claim 3 in which said detergent is an anionic detergent.
Claim 7
Dependent Claim
29 words
Detergent composition according to claim 7 in which said anionic detergent is an alkyl aryl sulfonate detergent in which the alkyl group contains from eight to 22 carbon atoms.
Claim 8
Dependent Claim
15 words
Detergent composition according to claim 8 in which said anionic detergent is alkyl benzene sulfonate.
Claim 9
Dependent Claim
27 words
Detergent composition according to claim 7 in which said anionic detergent is an alkyl sulfate in which the alkyl group contains from eight to 22 carbon atoms.
Claim 10
Dependent Claim
15 words
Detergent composition according to claim 10 in which said anionic detergent is tallow alcohol sulfate.
Claim 11
Dependent Claim
12 words
Detergent composition according to claim 3 in which said detergent is nonionic.
Claim 12
Dependent Claim
34 words
Detergent composition according to claim 3 in which said detergent includes both an alkyl sulfate and an alkyl aryl sulfonate detergent in which the alkyl groups each contain from eight to 22 carbon atoms.
Claim 13
Dependent Claim
24 words
Detergent composition according to claim 13 in which said alkyl sulfate is tallow alcohol sulfate and said alkyl aryl sulfonate is dodecyl benzene sulfonate.
Claim 14
Dependent Claim
22 words
Detergent composition according to claim 3 in which the weight ratio of said detergent to said salt is from 5:1 to 1:1.
Claim 15
Dependent Claim
43 words
Detergent composition according to claim 15 in which said detergent is a mixture of alkyl sulfate and alkyl aryl sulfonate detergents in which said alkyl groups each contain from eight to 18 carbon atoms and in proportions of 4:1 to 2:1 by weight.
Claim 16
Dependent Claim
29 words
Detergent composition according to claim 3 in which there is additionally present from 20 to 60 percent by weight of a water-soluble inorganic builder salt in the total composition.
Claim 17
Dependent Claim
45 words
Method of softening fabrics during washing thereof with an aqueous washing solution of a synthetic organic noncationic detergent which includes introducing into the washing solution an alkali metal salt of isostearic acid in a weight ratio of 0.5:1 to 10:1 of detergent to said salt.
Claim 18
Dependent Claim
24 words
Method according to claim 18 in which the weight ratio of detergent to isostearic acid salt in said solution is between 5:1 and 1:1.
References Cited (Backward Citations)
GB303379A
Cited
GB348783A
Cited
GB431964A
Cited
US2527329A
Cited
US2567645A
Cited
GB640373A
Cited
GB737824A
Cited
US2954347A
Cited
US3454494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |