Duke University

University of Florida Research Foundation, Incorporated

Dan Rittschof

Joseph Bonaventura

William Reade Kem

Ferenc Soti

Donald J Gerhart

The subject invention provides materials and methods for inhibiting the biofouling of surfaces exposed to aquatic environments. In one embodiment, the subject invention provides additives for marine paints and surface treatments. The subject invention further provides repellents and selective inhibitors for aquatic and/or terrestrial crustacean pests.

Materials and methods for inhibiting fouling of surfaces exposed to aquatic environments

The subject invention provides materials and methods for inhibiting the biofouling of surfaces exposed to aquatic environments. In one embodiment, the subject invention provides additives for marine paints and surface treatments. The subject invention further provides repellants and selective inhibitors for aquatic and/or terrestrial crustacean pests.

A method of controlling the attachment of organisms to an underwater surface is disclosed. The method comprises contacting the organisms with a compound of Formula I ##STR1## wherein R.sub.1 is hydrogen hydroxyl C.sub.1 -C.sub.20 alkyl, C.sub.1 -C.sub.20 alkoxy, C.sub.1 -C.sub.20 aryl, C.sub.1 -C.sub.20 alkyl aryl, or carbohydrate; R.sub.2 is hydrogen or hydroxyl, and R.sub.3 is hydrogen, or R.sub.2 and R.sub.3 together form an epoxide; R.sub.4 is hydrogen, hydroxyl, C.sub.1 -C.sub.4 alkoxy, or carboxylic acid; and L is selected from the group consisting of a moiety of Formula II, a moiety of Formula III, and a moiety of Formula IV ##STR2## wherein R.sub.5 is CH.sub.2, NH, O or S, R.sub.6 is CH.sub.2, NH, O or S, R.sub.7 is N or CH, and R.sub.8 is NH or O, and wherein the compound is optionally substituted from 1 to five times with halogen, hydroxyl, C.sub.1 -C.sub.3 alkyl, or C.sub.1 -C.sub.3 alkoxy groups at positions 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, and 12. Antifouling coatings and cementitious compositions containing a compound of Formula I are also disclosed.

Antifouling coating and method for using same

A method of controlling the attachment of organisms to an underwater surface is disclosed. The method comprises contacting the organisms with a compound of Formula I ##STR1## wherein R.sub.1 is hydrogen, hydroxyl, C.sub.1-C.sub.20 alkyl, C.sub.1-C.sub.20 alkoxy, C.sub.1-C.sub.20 aryl, C.sub.1-C.sub.20 alkyl aryl, or carbohydrate; R.sub.2 is hydrogen or hydroxyl, and R.sub.3 is hydrogen, or R.sub.2 and R.sub.3 together form an epoxide; R.sub.4 is hydrogen, hydroxyl, C.sub.1 -C.sub.4 alkoxy, or carboxylic acid; and L is selected from the group consisting of a moiety of Formula II, a moiety of Formula III, and a moiety of Formula IV ##STR2## wherein R.sub.5 is CH.sub.2, NH, O or S, R.sub.6 is CH.sub.2, NH, O or S, R.sub.7 is N or CH, and R.sub.8 is NH or O, and wherein the compound is optionally substituted from 1 to five times with halogen, hydroxyl, C.sub.1-C.sub.3 alkyl, or C.sub.1-C.sub.3 alkoxy groups at positions 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, and 12. Antifouling coatings and cementitious compositions containing a compound of Formula I are also disclosed.

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Morehead City, NC, United States of America

Dan Rittschof