US3689660A
Expired / Lapsed
US
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Stable liquid antimicrobial composition
Assignee: Dow Chemical Co
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Filing: 1970-07-31
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Granted: 1972-09-05
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Expires: 1990-07-31
Abstract
Abstract Stable liquid compositions useful as antimicrobial agents comprise a halocyanoacetamide such as 2,2-dibromo-2cyanoacetamide and a straight-chain polyalkylene glycol such as polyethylene glycol 200. The compositions can also contain water.
Inventors
- 👤 George A Burk
- 👤 Jurgen H Exner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:10
CPC Classifications
A; A01; A01N; A01N37/00; A01N37/34
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
20 words
The composition of claim 1 wherein the organic liquid is a polyethylene glycol having a molecular weight of about 200.
Claim 2
Dependent Claim
76 words
A stable antibacterial and antifungal composition comprising a mixture of from about 0 to about 20 percent by weight of water, from about 1 to 60 percent by weight of 2,2-dibromo-2-cyanoacetamide and from about 20 to about 99 percent by weight of an organic liquid selected from the group consisting of a polyethylene glycol having a molecular weight of about 175 to 250, a polyethylene glycol having a molecular weight of about 400 and triethylene glycol.
Claim 3
Dependent Claim
20 words
The composition of claim 3 wherein the organic liquid is a polyethylene glycol having a molecular weight of about 200.
Claim 4
Dependent Claim
47 words
The composition of claim 3 wherein the composition contains from about 15 to about 25 percent by weight of 2,2-dibromo-2-cyanoacetamide and from zero to about 16 percent by weight of water, and wherein the organic liquid is a polyethylene glycol having a molecular weight of about 200.
Claim 5
Dependent Claim
38 words
A stable antibacterial and antifungal composition consisting essentially of a solution of 2,2-dibromo-2-cyanoacetamide in a polyethylene glycol having a molecular weight of about 200, the concentration of 2,2-dibromo-2-cyanoacetamide being from about 5 to about 20 percent by weight.
Claim 6
Dependent Claim
19 words
The composition of claim 6 wherein the 2,2-dibromo-2-cyanoacetamide is present in a concentration of about 20 percent by weight.
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) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |