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Application of a class of butenolide compounds in the preparation of anti-marine biofouling coatings

A marine biofouling, butenolactone technology, applied in antifouling/underwater coatings, biocide-containing paints, coatings, etc., can solve problems such as low release rate, affecting embryo growth, and destroying ecological balance. , to achieve good lipophilic effect

Active Publication Date: 2017-02-01
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Subsequent antifouling coatings that dominate the market are copper-containing antifouling coatings with low release rates. However, heavy metal elements will accumulate in the ocean, especially in harbors, resulting in a large number of algae deaths, affecting carp, shrimp, crabs, etc. And the embryonic growth of various molluscs and backpack animals, destroying their blood cells, thereby destroying their ecological balance, so it will eventually be banned

Method used

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  • Application of a class of butenolide compounds in the preparation of anti-marine biofouling coatings
  • Application of a class of butenolide compounds in the preparation of anti-marine biofouling coatings
  • Application of a class of butenolide compounds in the preparation of anti-marine biofouling coatings

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Example 1: Anti-marine large-scale fouling biological barnacle larvae attachment activity test of crotonic acid lactone compounds represented by formula (1) to formula (8)

[0021] The activity test model is the attachment inhibition test of Barnacles larvae, one of the most commonly used marine fouling biological models in the laboratory. The adult barnacles feed on Chaetocerosgracilis Schutt, and the nauplii of the barnacles were cultured to the Venus larval stage in 0.22 μm filtered seawater, 2 larvae per ml, and the culture temperature was 28 °C. Activity assays were performed with the resulting Venus stage larvae. The anti-larval attachment activity of the compounds was determined using 24-well polystyrene plates. Compound butyrolactone V (Formula 1) was dissolved in DMSO and diluted with sterile filtered seawater to different concentration solutions (60–140 μg / mL) as test solution. 1 mL of test solution and 20±2 mature barnacle larvae were added to each well, 5 ...

Embodiment 2

[0024] Embodiment 2: Field sea siding activity test of butenolactone compounds represented by formula (8)

[0025] The field sea hanging board test adopts the traditional anti-fouling biological field sea hanging board test method. Dissolve 0.2 g and 0.4 g of the crotonic acid lactone compound represented by formula (8) in 1 mL of methanol respectively, and then thoroughly mix it with 10 mL of resin containing 45% polyurethane and spread it on a dry PVC (10× 10 × 0.3 cm) board, dried and hung in Shenzhen Daya Bay scallop breeding sea area (114°32'59 east longitude, 22°40'37 north latitude). The PVC containing 0.2 g of the crotonic acid lactone-based compound represented by the formula (8) was set as the treatment group 1, and the PVC containing 0.4 g of the crotonic acid lactone-based compound represented by the formula (8) was set as the treatment group 2. Three parallels were set for each treatment. Take 1 mL of methanol and 10 mL of resin containing 45% polyurethane and m...

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Abstract

The invention discloses an application of a class of a butenolide compounds in the preparation of a marine biofouling prevention coating material. The butyrol actone V, the aspernolide A, the butyrolactone IV, the aspernolide B, the butyrolactone II, the 4-(4-Hydroxyphenyl)-5-(4-hydroxypheneylmethyl)-2-hydroxyfurane-2-one, the 5,6-dihydropenicillic acid and the 5,6-dihydro-6-hydroxy-penicillic acid, which are provided by the invention, have marine biofouling prevention activity and can be used for preparing the marine biofouling prevention coating material; if the compounds permeate or diffuse into film forming natural resin, polyethylene ethyl acetate copolymer and other polymers such as hydrolyzable, soluble or insoluble resin in an independent or combined way to prepare the marine biofouling prevention coating material, the marine biofouling prevention coating material can release sufficient effective components to a surface to achieve an antifouling function; as the compounds are natural active ingredients, are hard to dissolve in water but easy to dissolve organic solvents such as chloroform, ethyl acetate and methyl alcohol, and have favorable oleophilic properties, the components can be applied to preparing the marine antifouling agents in an independent or combined way and have a favorable application prospect.

Description

[0001] Technical field: [0002] The invention belongs to the field of biology, and in particular relates to the application of a class of butenolide compounds in the preparation of anti-marine biofouling coatings. [0003] Background technique: [0004] In the historical process of developing and utilizing the ocean, human beings have always been faced with the problem of preventing and eradicating marine organisms. Marine fouling organisms are a general term for various animals, plants and microorganisms that inhabit or attach to ships and various underwater artificial facilities and adversely affect human economic activities. There are more than 4,000 species of marine fouling organisms in the world, and 614 species have been recorded in my country's coastal areas, among which the most important groups are barnacles, algae, hydra, eucalyptus (lime worm), bivalves and sea squirts. Marine fouling organisms attach, grow and even form communities on the surface of various objec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/16
CPCC08K5/1535C08K5/1545C09D5/14C09D5/1625
Inventor 漆淑华农旭华张晓勇徐新亚
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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