US5145596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antimicrobial rinse cycle additive
Assignee: Dow Silicones Corp
•
Filing: 1989-08-07
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Granted: 1992-09-08
•
Expires: 2009-08-07
Abstract
Abstract A method of treating fabrics in order to eliminate odor caused by microbial growth by adding an antibacterially effective amount of an organosilicon quaternary ammonium compound to the rinse cycle of a textile laundering operation containing the fabrics in order to destroy bacteria and fungi. The organosilicon quaternary ammonium compound is the silane 3-(trimethoxysilyl) propyldimethyloctadecyl ammonium chloride of the formula ##STR1##
Inventors
- 👤 Lynne M. B. Blank
- 👤 William C. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:34
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/48; C11D17/00; C11D17/0008; C11D17/0017; C11D17/0021; C11D3/16; C11D3/162; D; D06; D06M; D06M13/00; D06M13/50; D06M13/51; D06M13/513; D06M16/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
175 words
A rinse cycle fabric laundering additive composition comprising a mixture of at least one nonsilicon organic quaternary ammonium compound, and at least one organosilicon quaternary ammonium compound, the organosilicon quaternary ammonium compound being an organosilane having the formula selected from the group consisting of ##STR11## wherein, in each formula, Y is R or RO where each R is an alkyl radical of 1 to 4 carbon atoms or hydrogen; a has a value of 0, 1 or 2; R' is a methyl or ethyl radical; R" is an alkylene group of 1 to 4 carbon atoms; R'", R"" and R v are each independently selected from a group consisting of alkyl radicals of 1 to 18 carbon atoms, --CH 2 C 6 H 5 , --CH 2 CH 2 OH, --CH 2 OH, and --(CH 2 ) x NHC(O)R vi , wherein x has a value of from 2 to 10 and R vi is a perfluoroalkyl radical having from 1 to 12 carbon atoms; and X is chloride, bromide, fluoride, iodide, acetate or tosylate.
Claim 2
Dependent Claim
175 words
A rinse cycle fabric laundering additive composition comprising a mixture of at least one nonsilicon organic quaternary ammonium compound, and at least one organosilicon quaternary ammonium compound, the organosilicon quaternary ammonium compound being an organosilane having the formula selected from the group consisting of ##STR11## wherein, in each formula, Y is R or RO where each R is an alkyl radical of 1 to 4 carbon atoms or hydrogen; a has a value of 0, 1 or 2; R' is a methyl or ethyl radical; R" is an alkylene group of 1 to 4 carbon atoms; R'", R"" and R v are each independently selected from a group consisting of alkyl radicals of 1 to 18 carbon atoms, --CH 2 C 6 H 5 , --CH 2 CH 2 OH, --CH 2 OH, and --(CH 2 ) x NHC(O)R vi , wherein x has a value of from 2 to 10 and R vi is a perfluoroalkyl radical having from 1 to 12 carbon atoms; and X is chloride, bromide, fluoride, iodide, acetate or tosylate.
Claim 3
Dependent Claim
27 words
The composition of claim 1 in which the organosilane and the organic quaternary ammonium compound are each present in the mixture in a ratio of about 5:1.
Claim 4
Independent Claim
212 words
A method of treating fabrics in a fabric laundering operation which includes a wash cycle followed by a rinse cycle in order to eliminate odor caused by microbial growth comprising the step of adding an antibacterially effective amount of an organosilicon quaternary ammonium compound to the rinse cycle of the laundering operation containing the fabrics in order to destroy bacteria and fungi causing the odor, the organosilicon quaternary ammonium compound being an organosilane having the formula selected from the group consisting of ##STR12## wherein, in each formula, Y is R or RO where each R is an alkyl radical of 1 to 4 carbon atoms or hydrogen; a has a value of 0, 1 or 2; R' is a methyl or ethyl radical; R" is an alkylene group of 1 to 4 carbon atoms; R'", R"" and R v are each independently selected from a group consisting of alkyl radicals of 1 to 18 carbon atoms, --CH 2 CH 6 H 5 , --CH 2 CH 2 OH, --CH 2 OH, and --(CH 2 ) x NHC(O)R vi wherein x has a value of from 2 to 10 and R vi is a perfluoroalkyl radical having from 1 to 12 carbon atoms; and X is chloride, bromide, fluoride, iodide, acetate or tosylate.
Claim 5
Independent Claim
212 words
A method of treating fabrics in a fabric laundering operation which includes a wash cycle followed by a rinse cycle in order to eliminate odor caused by microbial growth comprising the step of adding an antibacterially effective amount of an organosilicon quaternary ammonium compound to the rinse cycle of the laundering operation containing the fabrics in order to destroy bacteria and fungi causing the odor, the organosilicon quaternary ammonium compound being an organosilane having the formula selected from the group consisting of ##STR12## wherein, in each formula, Y is R or RO where each R is an alkyl radical of 1 to 4 carbon atoms or hydrogen; a has a value of 0, 1 or 2; R' is a methyl or ethyl radical; R" is an alkylene group of 1 to 4 carbon atoms; R'", R"" and R v are each independently selected from a group consisting of alkyl radicals of 1 to 18 carbon atoms, --CH 2 CH 6 H 5 , --CH 2 CH 2 OH, --CH 2 OH, and --(CH 2 ) x NHC(O)R vi wherein x has a value of from 2 to 10 and R vi is a perfluoroalkyl radical having from 1 to 12 carbon atoms; and X is chloride, bromide, fluoride, iodide, acetate or tosylate.
Claim 6
Dependent Claim
26 words
The method of claim 3 in which the organosilane is added to the rinse cycle in the form of an emulsion containing the organosilane active ingredient.
Claim 7
Dependent Claim
26 words
The method of claim 3 in which the organosilane is added to the rinse cycle in the form of a microemulsion containing the organosilane active ingredient.
Claim 8
Dependent Claim
57 words
The method of claim 3 in which the organosilane is added to the rinse cycle in admixture with a nonsilicon organic quaternary ammonium compound, the organosilane and the organic quaternary ammonium compound being added to the rinse cycle in an amount of about 0.01 percent by weight of the admixture based on the weight of the fabrics.
Claim 9
Dependent Claim
27 words
The method of claim 6 in which the organosilane and the organic quaternary ammonium compound are each present in the admixture in a ratio of about 5:1.
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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) | 1995-09-08 | 1996-03-09 | 1996-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-08 | 2000-03-09 | 2000-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-08 | 2004-03-09 | 2004-09-08 | $7700.00 | Window Closed / Lapsed |