US3639293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slime control method and composition of betabromo-betanitrostyrene and bis-(trichloromethyl)-sulfone
Assignee: Veolia WTS USA Inc
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Filing: 1970-01-02
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Granted: 1972-02-01
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Expires: 1990-01-02
Abstract
Abstract The present invention relates to certain processes and compositions useful for inhibiting the growth of slime in water employed for industrial purposes, particularly water employed in the manufacture of pulp paper, water employed in cooling water systems, as well as other industrial waters. The novel processes and compositions of the present invention are processes or mixtures which show unexpected synergistic activity against micro-organisms, including bacteria, fungi and algae, which produce slime in aqueous systems and bodies which are objectionable from an operational or aesthetic point of view. Specifically, the invention is directed to compositions comprising a mixture of bis-(trichloromethyl)-sulfone and bromonitrostyrene and their use.
Inventors
- 👤 Bernard F Shema
- 👤 Robert H Brink Jr
- 👤 Paul Swered
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:41
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/50; A; A01; A01N; A01N47/00; A01N47/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
33 words
A composition according to claim 1 in which said sulfone is present in a quantity of 50 percent by weight and said bromonitrostyrene is present in a quantity of 50 percent by weight.
Claim 2
Dependent Claim
34 words
A composition as claimed by claim 1 in which between 5 percent to 65 percent by weight of said combination is dispersed in between 35 percent to 95 percent by weight of nonaqueous solvents.
Claim 3
Dependent Claim
22 words
A composition as claimed by claim 3 in which said nonaqueous solvents are a mixture of a surfactant, aromatic hydrocarbons and/or glycols.
Claim 4
Independent Claim
50 words
A method for the control of slime in aqueous systems comprising adding to said system an effective amount for the purpose of a composition comprising from about 5 percent to about 95 percent by weight of betabromo-betanitrostyrene and from about 95 percent to about 5 percent by weight of bis-(trichloromethyl)-sulfone.
Claim 5
Dependent Claim
45 words
A method according to claim 5 wherein said composition is added to said system a mixture comprising between about 5 percent to about 65 percent by weight of said composition in combination with between 35 percent and 95 percent by weight of a nonaqueous solvent.
Claim 6
Dependent Claim
20 words
A method according to claim 6 wherein said aqueous system is the aqueous system of a paper and/or pulp mill.
Claim 7
Dependent Claim
18 words
A method according to claim 6 wherein said aqueous system is the water of a cooling water system.
Claim 8
Dependent Claim
36 words
A method according to claim 5 in which said composition is added to said system in an amount of between about 0.5 to about 1,000 parts, by weight per million parts by weight of said system.
Claim 9
Dependent Claim
34 words
A method as claimed by claim 9 in which said sulfone is present in a quantity of 50 percent by weight and said bromonitrostyrene is present in a quantity of 50 percent by weight.
Claim 10
Dependent Claim
49 words
A method as claimed by claim 10 in which said composition is added to said system as a combination comprising between about 5 percent to about 65 percent by weight of said composition in combination with between 35 percent to about 95 percent by weight of a nonaqueous solvent.
Claim 11
Dependent Claim
22 words
A method as claimed by claim 11 in which said nonaqueous solvent is a mixture of a surfactant and an aromatic hydrocarbon.
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) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |