Claims
- 1. A method of reducing marine organisms on a ship's hull which comprises administering an effective amount of tributenyltin bromides having double bonds at carbon atoms C-1 or C-3 to remove said organisms from a ship's hull.
STATEMENT OF GOVERNMENT INTEREST
The invention described herein may be manufactured and used by or for the Government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.
The use of tributyltin compounds as antifoulants for ships' hulls has become of increasing concern because of their potential toxicity to non-target organisms and because of the potential for bioaccumulation. It is known that when ethyl and propyl groups are replaced by vinyl and allyl groups in tetraorganotins, the resulting double-bonded compounds show enhanced chemical reactivity. In an attempt to create more reactive compounds, this invention synthesizes organotin compounds in which butyl groups are replaced with butenyl groups. Such compounds, used as antifoulants, show promise as being able to degrade more quickly in the environment while retaining sufficient toxicity to target organisms.
The present invention is directed to providing a biocide or antifoulant for a ship's hull to reduce the effects of marine fouling in the ocean and which includes trialkyl compounds containing double bonds at carbon atoms C-1 or C-3 or a combination thereof.
An object of the invention is to provide an antifoulant coating for ships' hulls that is less harmful to the environment by virtue of being more rapidly degradable.
Another object of the invention is to provide an antifoulant compound having a faster degradation rate with acceptable toxicity than contemporary antifouling compounds.
Yet another object is to provide a new class of organotin compounds in which the organic moieties are unsaturated to provide appropriate levels of antifouling protection with lower levels of environmental contamination.
Yet another object of the invention is to provide an antifoulant coating including tributenyltin compounds.
These and other features, objects, and advantages of the present invention will be better appreciated from an understanding of the operative principles of a preferred embodiment as described hereinafter.
US Referenced Citations (9)
Foreign Referenced Citations (1)
| Number |
Date |
Country |
| 0116615 |
Jun 1985 |
JPX |
Patent Grant
5006554
