US4647589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inhibition of microbiological growth
Assignee: Texaco Inc
•
Filing: 1984-05-25
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Granted: 1987-03-03
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Expires: 2004-05-25
Abstract
Abstract Aqueous substrates are treated to inhibit microbiological growth by addition of dimethylaminopropylmethacrylamide or dimethylaminopropylacrylamide. In the presence of corrosion inhibitors, it is found that the instant biocides will permit attainment of 100% biocidal kill when present in lesser amounts than are required when no corrosion inhibitor is present. Presence of the instant biocides causes no deletrious impact upon the corrosion inhibitors; and in fact an improvement in corrosion inhibition is observed in the presence of the biocide.
Inventors
- 👤 Frederick W. Valone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:08
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/50; A; A01; A01N; A01N37/00; A01N37/18; A01N37/20; A01N37/22; C23; C23F; C23F11/00; C23F11/08; C23F11/10
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
63 words
The process of inhibiting microbiological growth in a hydrocarbon or aqueous locus containing undesirable microbial growth which comprises treating said locus with a microbiologically effective amount of, as biocidal additive, ##STR11## wherein R and R"' are hydrogen, alkyl, aralkyl, cycloalkyl, alkaryl, alkenyl, alkynyl, or aryl; R' is hydrogen, alkyl, aralkyl, cycloalkyl, alkaryl, or aryl; and R" is alkylene, aralkylene, alkarylene, cycloalkylene, or arylene.
Claim 2
Dependent Claim
63 words
The process of inhibiting microbiological growth in a hydrocarbon or aqueous locus containing undesirable microbial growth which comprises treating said locus with a microbiologically effective amount of, as biocidal additive, ##STR11## wherein R and R"' are hydrogen, alkyl, aralkyl, cycloalkyl, alkaryl, alkenyl, alkynyl, or aryl; R' is hydrogen, alkyl, aralkyl, cycloalkyl, alkaryl, or aryl; and R" is alkylene, aralkylene, alkarylene, cycloalkylene, or arylene.
Claim 3
Dependent Claim
15 words
The process of inhibiting microbiological growth as claimed in claim 1 wherein R is hydrogen.
Claim 4
Dependent Claim
15 words
The process of inhibiting microbiological growth as claimed in claim 1 wherein R' is hydrogen.
Claim 5
Dependent Claim
15 words
The process of inhibiting microbiological growth as claimed in claim 1 wherein R' is methyl.
Claim 6
Dependent Claim
15 words
The process of inhibiting microbiological growth as claimed in claim 1 wherein R" is polymethylene.
Claim 7
Dependent Claim
21 words
The process of inhibiting microbiological growth as claimed in claim 1 wherein R" is --CH 2 CH 2 CH 2 --.
Claim 8
Dependent Claim
15 words
The process of inhibiting microbiological growth as claimed in claim 1 wherein R"' is methyl.
Claim 9
Dependent Claim
17 words
The process of inhibiting microbiological growth as claimed in claim 1 wherein said biocidal additive is ##STR12##
Claim 10
Dependent Claim
17 words
The process of inhibiting microbiological growth as claimed in claim 1 wherein said biocidal additive is ##STR13##
Claim 11
Dependent Claim
22 words
The process of inhibiting microbiological growth as claimed in claim 1 wherein said biocidal additive is present in concentration of 5-1000 ppm.
Claim 12
Dependent Claim
28 words
The process of inhibiting microbiological growth in an aqueous locus containing undesireable microbial growth which comprises treating said locus with 5-1000 ppm of, as a biocidal additive, ##STR14##
Claim 13
Dependent Claim
28 words
The process of inhibiting microbiological growth in an aqueous locus containing undesireable microbial growth which comprises treating said locus with 5-1000 ppm of, as a biocidal additive, ##STR14##
Claim 14
Dependent Claim
81 words
The process of inhibiting microbiological growth in a hydrocarbon or aqueous locus containing undesireable microbial growth which includes metal surfaces which are subject to corrosion which comprises treating said locus with corrosion inhibiting amount of a corrosion inhibiting additive and a microbiologically effective amount of, as biocidal additive ##STR15## wherein R and R"' are hydrogen, alkyl, aralkyl, cycloalkyl, alkaryl, alkenyl, alkynyl, or aryl; R' is hydrogen, alkyl, aralkyl, cycloalkyl, alkaryl, or aryl; and R" is alkylene, aralkylene, alkarylene, cycloalkylene, or arylene.
Claim 15
Dependent Claim
81 words
The process of inhibiting microbiological growth in a hydrocarbon or aqueous locus containing undesireable microbial growth which includes metal surfaces which are subject to corrosion which comprises treating said locus with corrosion inhibiting amount of a corrosion inhibiting additive and a microbiologically effective amount of, as biocidal additive ##STR15## wherein R and R"' are hydrogen, alkyl, aralkyl, cycloalkyl, alkaryl, alkenyl, alkynyl, or aryl; R' is hydrogen, alkyl, aralkyl, cycloalkyl, alkaryl, or aryl; and R" is alkylene, aralkylene, alkarylene, cycloalkylene, or arylene.
Claim 16
Dependent Claim
15 words
The process of inhibiting microbiological growth as claimed in claim 12 wherein R is hydrogen.
Claim 17
Dependent Claim
15 words
The process of inhibiting microbiological growth as claimed in claim 12 wherein R' is methyl.
Claim 18
Dependent Claim
15 words
The process of inhibiting microbiological growth as claimed in claim 12 wherein R" is polymethylene.
Claim 19
Dependent Claim
21 words
The process of inhibiting microbiological growth as claimed in claim 12 wherein R" is --CH 2 CH 2 CH 2 --.
Claim 20
Dependent Claim
15 words
The process of inhibiting microbiological growth as claimed in claim 12 wherein R"' is methyl.
Claim 21
Dependent Claim
17 words
The process of inhibiting microbiological growth as claimed in claim 12 wherein said biocidal additive is ##STR16##
Claim 22
Dependent Claim
17 words
The process of inhibiting microbiological growth as claimed in claim 12 wherein said biocidal additive is ##STR17##
References Cited (Backward Citations)
US3878247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-02 | 1990-09-01 | 1991-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-02 | 1994-09-01 | 1995-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-02 | 1998-09-01 | 1999-03-03 | $7700.00 | Window Closed / Lapsed |