US4396520A
Expired / Lapsed
US
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Detergent compositions
Assignee: Procter and Gamble Co
•
Filing: 1982-04-26
•
Granted: 1983-08-02
•
Expires: 2002-04-26
Abstract
Abstract Mixtures of specific alkyl polysaccharide detergent surfactants and calcium sensitive anionic detergent surfactants provide superior detergency.
Inventors
- 👤 Nicholas S. Payne
- 👤 Keith A. Jones
- 👤 Eugene J. Pancheri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:21
CPC Classifications
C; C11; C11D; C11D10/00; C11D10/04; C11D1/00; C11D1/66; C11D1/662; C11D1/83; C11D1/02; C11D1/12; C11D1/14; C11D1/22
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
136 words
A detergent composition comprising: (1) an alkylpolysaccharide detergent surfactant having the formula RO(R 1 O) t Z x wherein R is an alkyl, alkylphenol, hydroxyalkyl, hydroxy alkylphenol, or mixtures thereof, and said alkyl groups contain from about 8 to about 18 carbon atoms; wherein each R 1 contains from 2 to about 4 carbon; wherein t is from 0 to about 5; wherein Z is a moiety derived from a reducing saccharide containing from 5 to 6 carbon atoms; and wherein x is is from about 11/2 to about 3; (2) a calcium sensitive anionic detergent cosurfactant; and (3) from 0% to about 95% of a detergent builder, the ratio of (2) to (1) being from about 1:1 to about 6:1 on a molar basis and the free fatty alcohol content being less than about 2%.
Claim 2
Dependent Claim
136 words
A detergent composition comprising: (1) an alkylpolysaccharide detergent surfactant having the formula RO(R 1 O) t Z x wherein R is an alkyl, alkylphenol, hydroxyalkyl, hydroxy alkylphenol, or mixtures thereof, and said alkyl groups contain from about 8 to about 18 carbon atoms; wherein each R 1 contains from 2 to about 4 carbon; wherein t is from 0 to about 5; wherein Z is a moiety derived from a reducing saccharide containing from 5 to 6 carbon atoms; and wherein x is is from about 11/2 to about 3; (2) a calcium sensitive anionic detergent cosurfactant; and (3) from 0% to about 95% of a detergent builder, the ratio of (2) to (1) being from about 1:1 to about 6:1 on a molar basis and the free fatty alcohol content being less than about 2%.
Claim 3
Dependent Claim
18 words
The composition of claim 1 wherein t is 0, and x is from about 11/2 to about 21/2.
Claim 4
Dependent Claim
57 words
The composition of claim 1 wherein said calcium sensitive anionic detergent cosurfactant has the formula R(SO.sub.3).sub.y (COO).sub.z (OSO.sub.3).sub.n M.sub.q wherein R has the meaning given hereinbefore; y, z and n are numbers from 0 to about 4; y+z+n is from 1 to about 3, M is a cationic moiety; and q is selected to complete the formula.
Claim 5
Dependent Claim
17 words
The composition of claim 3 wherein t is 0, x is from about 11/2 to about 21/2.
Claim 6
Dependent Claim
36 words
The composition of claim 4 wherein said alkyl groups contain from about 10 to about 14 carbon atoms, and Z is selected from the group consisting of glucose, galactose, glucosyl, and galactosyl residues and mixtures thereof.
Claim 7
Dependent Claim
11 words
The composition of claim 5 wherein Z is derived from glucose.
Claim 8
Dependent Claim
26 words
The compositions of claims 4, 5 or 6 wherein the anionic detergent cosurfactant is an alkyl sulfate containing from about 6 to about 30 carbon atoms.
Claim 9
Dependent Claim
26 words
The compositions of claims 4, 5 or 6 wherein the anionic detergent cosurfactant is an alkyl sulfonate containing from about 6 to about 30 carbon atoms.
Claim 10
Dependent Claim
31 words
The compositions of claims 4, 5 or 6 wherein said anionic detergent cosurfactant is an alkyl benzene sulfonate in which the alkyl contains from about 6 to about 20 carbon atoms.
Claim 11
Dependent Claim
27 words
The compositions of claims 4, 5 or 6 wherein said anionic detergent cosurfactant is a fatty acid soap containing from about 6 to about 30 carbon atoms.
Claim 12
Dependent Claim
19 words
The composition of claim 1 wherein the ratio of (2) to (1) is from about 2:1 to about 4:1.
Claim 13
Dependent Claim
23 words
The compositions of claim 11 wherein the anionic detergent cosurfactant is an alkyl sulfate containing from about 6 to about 30 carbon atoms.
Claim 14
Dependent Claim
23 words
The compositions of claim 11 wherein the anionic detergent cosurfactant is an alkyl sulfonate containing from about 6 to about 30 carbon atoms.
Claim 15
Dependent Claim
28 words
The compositions of claim 11 wherein said anionic detergent cosurfactant is an alkyl benzoate sulfonate in which the alkyl contains from about 6 to about 20 carbon atoms.
Claim 16
Dependent Claim
24 words
The composition of claim 11 wherein said anionic detergent cosurfactant is a fatty acid soap containing from about 6 to about 30 carbon atoms.
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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) | 1986-08-01 | 1987-01-31 | 1987-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-01 | 1991-01-31 | 1991-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-01 | 1995-01-31 | 1995-08-02 | $7700.00 | Window Closed / Lapsed |