US4093744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Killing bacterial spores with glutaraldehyde sporicidal compositions
Assignee: West Labs Inc
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Filing: 1975-07-17
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Granted: 1978-06-06
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Expires: 1995-07-17
Abstract
Abstract This invention relates to new and improved means for killing spores on instruments and the like utilizing the combination of glutaraldehyde and a detergent selected from the group consisting of nonionic, anionic and ampholytic surface active agents. The sporicidal kill activity of glutaraldehyde is enhanced by said detergents.
Inventors
- 👤 Murray W. Winicov
- 👤 Abraham Cantor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:46
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/48
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
124 words
A process for killing bacterial spores on medical appliances and apparatus which comprises immersing the same in a sporicidal composition comprising: (a) a solvent consisting of water (b) about 2 to 4% by weight glutaraldehyde, and (c) 0.1 to 10% by weight of a surface active agent selected from the group consisting of the nonionic surface active agents which are alkylphenol ethoxylates, polyoxypropylene ethoxylates, butoxy derivatives of propylene oxide-ethylene oxide block polymers, and primary alkanol ethoxylates; the anionic surface active agents which are sulfated alcohols, sulfated alcohol ethoxylates, linear alkane sulfonates, and fluorinated anionic detergents; and the ampholytic surface active agent, disodium - N - lauryl - β - imino - dipropionate, and being further characterized as having a pH of 7.0 ± 0.3.
Claim 2
Dependent Claim
124 words
A process for killing bacterial spores on medical appliances and apparatus which comprises immersing the same in a sporicidal composition comprising: (a) a solvent consisting of water (b) about 2 to 4% by weight glutaraldehyde, and (c) 0.1 to 10% by weight of a surface active agent selected from the group consisting of the nonionic surface active agents which are alkylphenol ethoxylates, polyoxypropylene ethoxylates, butoxy derivatives of propylene oxide-ethylene oxide block polymers, and primary alkanol ethoxylates; the anionic surface active agents which are sulfated alcohols, sulfated alcohol ethoxylates, linear alkane sulfonates, and fluorinated anionic detergents; and the ampholytic surface active agent, disodium - N - lauryl - β - imino - dipropionate, and being further characterized as having a pH of 7.0 ± 0.3.
Claim 3
Dependent Claim
116 words
A sporicidal composition for treating medical instruments and appliances, consisting essentially of: (a) a solvent consisting of water (b) about 2 to 4% by weight glutaraldehyde, and (c) 0.1 to 10% by weight of a surface active agent selected from the group consisting of the nonionic surface active agents which are alkylphenol ethoxylates, polyoxypropylene ethoxylates, butoxy derivatives of propylene oxide-ethylene oxide block polymers, and primary alkanol ethoxylates; the anionic surface active agents which are sulfated alcohols, sulfated alcohol ethoxylates, linear alkane sulfonates, and fluorinated anionic detergents; and the ampholytic surface active agent, disodium - N - lauryl - β -imino - dipropionate, and said composition being further characterized as having a pH of 7.0 ± 0.3.
Claim 4
Dependent Claim
116 words
A sporicidal composition for treating medical instruments and appliances, consisting essentially of: (a) a solvent consisting of water (b) about 2 to 4% by weight glutaraldehyde, and (c) 0.1 to 10% by weight of a surface active agent selected from the group consisting of the nonionic surface active agents which are alkylphenol ethoxylates, polyoxypropylene ethoxylates, butoxy derivatives of propylene oxide-ethylene oxide block polymers, and primary alkanol ethoxylates; the anionic surface active agents which are sulfated alcohols, sulfated alcohol ethoxylates, linear alkane sulfonates, and fluorinated anionic detergents; and the ampholytic surface active agent, disodium - N - lauryl - β -imino - dipropionate, and said composition being further characterized as having a pH of 7.0 ± 0.3.
Claim 5
Dependent Claim
15 words
The sporicidal composition of claim 2 wherein said surface active agent is an alkylphenol ethoxylate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |