Patent US5064613A successfully refreshed from Google Patents.
US5064613A
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US
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Solid antimicrobial
Assignee: Dow Silicones Corp
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Filing: 1989-11-03
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Granted: 1991-11-12
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Expires: 2009-11-03
Abstract
Abstract A method of treating surfaces in order to eliminate microbial growth by adding an antibacterially effective amount of an organosilicon quaternary ammonium silatrane compound to the surface in order to destroy bacteria and fungi. The preferred organosilicon quaternary ammonium silatrane compound has the formula ##STR1## wherein R 1 , R 2 , R 3 , and R 4 , each represent a hydrogen atom or a methyl, ethyl, propyl, or butyl radical.
Inventors
- 👤 Bruce S. Higgs
- 👤 William C. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:20
CPC Classifications
A; A01; A01N; A01N55/00; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
197 words
A method of treating a surface to combat microorganisms comprising reacting an alkanolamine with an organosilicon quaternary ammonium compound to form a solid particulate silatrane compound, dissolving the silatrane in an aqueous medium and forming an antimicrobially active solution of the silatrane, and applying the solution to the surface, 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
Independent Claim
197 words
A method of treating a surface to combat microorganisms comprising reacting an alkanolamine with an organosilicon quaternary ammonium compound to form a solid particulate silatrane compound, dissolving the silatrane in an aqueous medium and forming an antimicrobially active solution of the silatrane, and applying the solution to the surface, 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
135 words
A method as claimed in claim 1 wherein the organosilicon compound has the formula ##STR12## wherein 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 indenpendently 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; X is chloride, bromide, fluoride, iodide, acetate or tosylate.
Claim 4
Dependent Claim
64 words
A method as claimed in claim 1 wherein the organosilicon compound has the formula ##STR13## wherein 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 of 1 to 4 carbon atoms; X is chloride, bromide, fluoride, iodide, acetate or tosylate.
Claim 5
Dependent Claim
17 words
The method of claim 1 wherein the organosilane is 3-(trimethoxysilyl) propyldimethyloctadecyl ammonium chloride of the formula ##STR14##
Claim 6
Dependent Claim
40 words
The method of claim 1 wherein the silatrane compound has the formula ##STR15## wherein R 1 , R 2 , R 3 , and R 4 , each represent a hydrogen atom or a methyl, ethyl, propyl, or butyl radical.
Claim 7
Dependent Claim
10 words
The method of claim 1 wherein the alkanolamine is triethanolamine.
Claim 8
Independent Claim
47 words
A method of treating a surface to combat microorganisms comprising applying to the surface an aqueous solution of the compound ##STR16## in which R 1 , R 2 , R 3 and R 4 each represent a hydrogen atom or a methyl, ethyl, propyl or butyl radical.
Claim 9
Independent Claim
47 words
A method of treating a surface to combat microorganisms comprising applying to the surface an aqueous solution of the compound ##STR16## in which R 1 , R 2 , R 3 and R 4 each represent a hydrogen atom or a methyl, ethyl, propyl or butyl radical.
Claim 10
Independent Claim
169 words
A method of treating a surface to combat microorganisms comprising applying to the surface an aqueous solution of a reaction product of an alkanolamine and an organosilicon quaternary ammonium compound having a formula selected from the group consisting of: ##STR17## wherein in each formula Y is R or RO where 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 the 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 11
Independent Claim
169 words
A method of treating a surface to combat microorganisms comprising applying to the surface an aqueous solution of a reaction product of an alkanolamine and an organosilicon quaternary ammonium compound having a formula selected from the group consisting of: ##STR17## wherein in each formula Y is R or RO where 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 the 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 12
Independent Claim
26 words
A method of treating a surface to combat microorganisms comprising applying to the surface an aqueous solution of an alkanolamine silatrane of 3-trimethoxysilylpropyl dimethyloctadecyl ammonium chloride.
Claim 13
Independent Claim
26 words
A method of treating a surface to combat microorganisms comprising applying to the surface an aqueous solution of an alkanolamine silatrane of 3-trimethoxysilylpropyl dimethyloctadecyl ammonium chloride.
Claim 14
Independent Claim
183 words
A method of treating a surface to combat microorganisms comprising applying to the surface an aqueous solution of a compound having a formula selected from the group consisting of: ##STR18## wherein in each formula Y is R or RO where 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 the 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; X is chloride, bromide, fluoride, iodide, acetate or tosylate; and R 1 , R 2 , R 3 and R 4 each represent a hydrogen atom or a methyl, ethyl, propyl or butyl radical.
Claim 15
Independent Claim
183 words
A method of treating a surface to combat microorganisms comprising applying to the surface an aqueous solution of a compound having a formula selected from the group consisting of: ##STR18## wherein in each formula Y is R or RO where 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 the 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; X is chloride, bromide, fluoride, iodide, acetate or tosylate; and R 1 , R 2 , R 3 and R 4 each represent a hydrogen atom or a methyl, ethyl, propyl or butyl radical.
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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) | 1994-11-11 | 1995-05-13 | 1995-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-11 | 1999-05-13 | 1999-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-11 | 2003-05-13 | 2003-11-12 | $7700.00 | Window Closed / Lapsed |