US3794736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of inhibiting the growth of bacteria and fungi using organosilicon amines
Assignee: Dow Silicones Corp
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Filing: 1971-09-19
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Granted: 1974-02-26
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Expires: 1991-09-19
Abstract
Abstract The growth of bacteria and fungi are inhibited by contacting the organisms with certain organosilicon amines and their corresponding amine salts. Specifically the compound ((CH3)3SiO)3Si(CH2)3NHCH2CH2NH2 kills S. aureus, E. coli, A. niger and P. aeruginosa at an M.I.C. of 100 ug/ml or less.
Inventors
- 👤 E Abbott
- 👤 A Isquith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:07
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/388; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/18; C07F7/1804; C07F7/21; D; D06; D06M; D06M13/00; D06M13/50; D06M13/51; D06M13/513; D06M16/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
14 words
The method of claim 1 in which the organosiloxane is affixed to a substrate.
Claim 2
Dependent Claim
11 words
The method of claim 2 in which the organosiloxane is H2NCH2CH2NH(CH2)3SiO1.5.
Claim 3
Dependent Claim
35 words
The method of claim 1 in which the organosiloxane is a copolymer of at least 5 mol percent siloxane units of the formula H2NCH2CH2NH(CH2)3SiO1.5, the remaining siloxane units being essentially all of the formula (CH3)2SiO.
Claim 4
Dependent Claim
23 words
The method of claim 4 in which the amine-functionality of the organosiloxane is in the form of the acetate salt of the amine.
Claim 5
Dependent Claim
12 words
The method of claim 1 in which the organosilicon amine is ((CH3)3SiO)3Si(CH2)3NH(CH2)2NH2.
Claim 6
Dependent Claim
12 words
The method of claim 1 in which the organosilicon amine is ((CH3)3SiO)3Si(CH2)3NHCH3.
Claim 7
Dependent Claim
12 words
The method of claim 1 in which the organosilicon amine is ((CH3)3SiO)3Si(CH2)3N(CH3)2.
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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |