Patent US3105838A successfully refreshed from Google Patents.
Patent US3898343A successfully refreshed from Google Patents.
US3898343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deposit control agent
Assignee: Veolia WTS USA Inc
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Filing: 1974-01-16
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Granted: 1975-08-05
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Expires: 1994-01-16
Abstract
Abstract The present invention relates to certain processes and compositions useful for inhibiting the growth of slime in water and, in particular, water used for industrial purposes; for example, in the manufacture of pulp paper, in the manufacture of paper, in cooling water systems and in effluent water treatment. The novel processes and compositions of the present invention are processes or mixtures which show unexpected synergistic activity against microorganisms, including bacteria, fungi and algae, which produce slime in aqueous systems or bodies which are objectionable from either an operational or aesthetic point of view. Specifically, the invention is directed to the use of compositions comprising a combination of a bromonitrostyrene and methylene bisthiocyanate.
Inventors
- 👤 Paul Swered
- 👤 Bernard F Shema
- 👤 Jr Robert H Brink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:13
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/50; A; A01; A01N; A01N47/00; A01N47/40; A01N47/48
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
52 words
A COMPOSITION WHICH IS EFFECTIVE IN PREVENTING THE GROWTH OF THE MICROORGANISM AEROBACTER AEROGENES IN AN AQUOUS SYSTEM IN WHICH SAID MICROORGANISM IS FOUND, COMPRISING A GROWTH INHIBITING AMOUNT OF BETA-BROMO-BETA-NITROSTYRENE AND METHYLENE BISTHIOCYANATE, WHEREIN THE WEIGHT RATIO OF THE STYRENE TO THE CYANATE RANGES FROM ABOUT 95:5 TO ABOUT 5:95 RESPECTIVELY.
Claim 2
Dependent Claim
52 words
A COMPOSITION WHICH IS EFFECTIVE IN PREVENTING THE GROWTH OF THE MICROORGANISM AEROBACTER AEROGENES IN AN AQUOUS SYSTEM IN WHICH SAID MICROORGANISM IS FOUND, COMPRISING A GROWTH INHIBITING AMOUNT OF BETA-BROMO-BETA-NITROSTYRENE AND METHYLENE BISTHIOCYANATE, WHEREIN THE WEIGHT RATIO OF THE STYRENE TO THE CYANATE RANGES FROM ABOUT 95:5 TO ABOUT 5:95 RESPECTIVELY.
Claim 3
Dependent Claim
11 words
The composition of claim 1 where said ratio is about 50:50.
Claim 4
Independent Claim
97 words
A method for controlling the growth of the microorganism Aerobacter aerogenes in an aqueous system in which said microorganism is found which comprises adding to said system so as to contact said microorganism a growth inhibiting effective amount of a combination comprising beta-bromo-beta-nitrostyrene and methylene bisthiocyanate, wherein the weight ratio of the styrene to the cyanate ranges from about 95:5 to about 5:95 respectively and wherein said composition is added to saiD system in an amount of from 0.1 to about 1000 parts by weight of said composition per million parts by weight of said aqueous system.
Claim 5
Independent Claim
97 words
A method for controlling the growth of the microorganism Aerobacter aerogenes in an aqueous system in which said microorganism is found which comprises adding to said system so as to contact said microorganism a growth inhibiting effective amount of a combination comprising beta-bromo-beta-nitrostyrene and methylene bisthiocyanate, wherein the weight ratio of the styrene to the cyanate ranges from about 95:5 to about 5:95 respectively and wherein said composition is added to saiD system in an amount of from 0.1 to about 1000 parts by weight of said composition per million parts by weight of said aqueous system.
Claim 6
Dependent Claim
11 words
The method of claim 3 where said ratio is about 50:50.
Claim 7
Dependent Claim
23 words
The method of claim 3 where said composition amount is from about 1 to about 100 parts per million of said aqueous system.
Claim 8
Dependent Claim
16 words
The method of claim 3 wherein the aqueous system is that of a cooling water system.
Claim 9
Dependent Claim
18 words
The method of claim 3 wherein the aqueous system is that of a pulp and paper mill system.
Claim 10
Independent Claim
60 words
A method of preserving materials which are subject to attack by the microorganism Aerobacter aerogenes which comprises incorporating in said material from about 0.01 to about 5 percent by weight of said material of a composition comprised of beta-bromo-beta-nitrostyrene and methylene bisthiocyanate, wherein the weight ratio of the styrene to the cyanate ranges from about 95:5 to about 5:95 respectively.
Claim 11
Independent Claim
60 words
A method of preserving materials which are subject to attack by the microorganism Aerobacter aerogenes which comprises incorporating in said material from about 0.01 to about 5 percent by weight of said material of a composition comprised of beta-bromo-beta-nitrostyrene and methylene bisthiocyanate, wherein the weight ratio of the styrene to the cyanate ranges from about 95:5 to about 5:95 respectively.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |