US4416793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid detergent compositions containing amino-silanes
Assignee: Procter and Gamble Co
•
Filing: 1982-09-22
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Granted: 1983-11-22
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Expires: 2002-09-22
Abstract
Abstract Neutral to alkaline liquid detergent compositions containing organic surface-active agents, optionally detergent builders, and additive levels of particular amino-silanes are disclosed. These compositions provide outstanding washing machine compatibility, particularly if the detergent is used in conjunction with enamel-coated surfaces.
Inventors
- 👤 Christian R. Barrat
- 👤 John R. Walker
- 👤 Jean Wevers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:20
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/162
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
116 words
A liquid detergent composition having improved machine compatibility, particularly in relation to enamel-coated surfaces, comprising: (a) from 5% to 60% by weight of a synthetic organic surface-active agent; (b) from 0% to 40% by weight of a detergent builder; (c) from 0.001% to 1% by weight of an amino-silane having the formula ##STR13## R 1 =C 1-4 -alkyl or C 1-4 -hydroxyalkyl; x is 0 or 1; m is 1-6; R 3 is hydrogen, R 1 , C 1-6 -alkylamine, ##STR14## R 4 is hydrogen or R 1 ; n is 1-6; y is 0-6; R 5 =R 4 , ##STR15## p=1-6; said composition having a pH, as is, in the range from 6 to 12.
Claim 2
Dependent Claim
116 words
A liquid detergent composition having improved machine compatibility, particularly in relation to enamel-coated surfaces, comprising: (a) from 5% to 60% by weight of a synthetic organic surface-active agent; (b) from 0% to 40% by weight of a detergent builder; (c) from 0.001% to 1% by weight of an amino-silane having the formula ##STR13## R 1 =C 1-4 -alkyl or C 1-4 -hydroxyalkyl; x is 0 or 1; m is 1-6; R 3 is hydrogen, R 1 , C 1-6 -alkylamine, ##STR14## R 4 is hydrogen or R 1 ; n is 1-6; y is 0-6; R 5 =R 4 , ##STR15## p=1-6; said composition having a pH, as is, in the range from 6 to 12.
Claim 3
Dependent Claim
21 words
The composition in accordance with claim 1 wherein the amino-silane is present in an amount from 0.01% to 0.5% by weight.
Claim 4
Dependent Claim
45 words
The composition in accordance with claim 1 wherein the substituents of the amino-silane are as follows: R 1 =--CH 3 or --C 2 H 5 , x=0 m=2 or 3 R 3 =hydrogen and ##STR16## R 4 =hydrogen or methyl R 5 =hydrogen or methyl.
Claim 5
Dependent Claim
34 words
The composition in accordance with claim 1 wherein the amino-silane is selected from the group consisting of: (CH.sub.3 --O).sub.3 --Si--(CH.sub.2).sub.3 --NH--(CH.sub.2).sub.2 --NH.sub.2 (CH.sub.3 --O).sub.3 --Si--(CH.sub.2).sub.3 --NH--(CH.sub.2).sub.3 --NH.sub.2 and (CH.sub.3 --O).sub.3 --Si--(CH.sub.2).sub.3 --NH--(CH.sub.2).sub.2 --NH(CH.sub.2).sub.2 NH.sub.2.
Claim 6
Dependent Claim
92 words
A substantially homogeneous liquid detergent composition containing surface-active agents, fatty acid soaps and other conventional detergent additives, characterized in that it contains: (a) from 20% to 40% by weight of a mixture of anionic surface-active agents and nonionic surface-active agents in a weight ratio of from 4:1 to 1:4; (b) from 10% to 25% of a C 12 -C 18 fatty acid soap; and (c) from 0.01 to 0.5 of the amino-silane in accordance with claim 1; said composition having a pH, measured as is, in the range from 7 to 9.
Claim 7
Dependent Claim
75 words
A substantially homogeneous liquid detergent composition containing surface-active agents and other conventional additives, characterized in, that it contains: (a) from 8% to 40% by weight of non-soap anionic surfactants, nonionic surfactants or mixtures thereof; (b) from 10% to 30% by weight of a polycarboxylate detergency builder; (c) from 0.01 to 0.5% of the amino-silane in accordance with claim 1, said composition having a pH, measured as is in the range of from 7 to 11.
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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) | 1986-11-21 | 1987-05-23 | 1987-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-21 | 1991-05-23 | 1991-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-21 | 1995-05-23 | 1995-11-22 | $7700.00 | Window Closed / Lapsed |