FR2562554A1 - Antisoiling composition for addition to the coatings of immersed bodies and coating containing it - Google Patents
Antisoiling composition for addition to the coatings of immersed bodies and coating containing it Download PDFInfo
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- FR2562554A1 FR2562554A1 FR8405502A FR8405502A FR2562554A1 FR 2562554 A1 FR2562554 A1 FR 2562554A1 FR 8405502 A FR8405502 A FR 8405502A FR 8405502 A FR8405502 A FR 8405502A FR 2562554 A1 FR2562554 A1 FR 2562554A1
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- coating
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- fouling
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1606—Antifouling paints; Underwater paints characterised by the anti-fouling agent
- C09D5/1612—Non-macromolecular compounds
- C09D5/1625—Non-macromolecular compounds organic
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
L'invention a pour objet une composition antisalissure plus couramment appelée antiofouling destinée à être ajoutée aux divers revêtements (peinture, vernis, enduit plastifié et analogue) que l'on applique à la surface des corps immergés ou placés dans un milieu fortement humide afin de ralentir sinon d'interdire l'adhérence et le développement à la surface de ces corps de la faune et de la flore aquatiques. Elle concerne aussi tout revêtement contenant une quantité suffisante pour être efficace de cette composition,
On connaît déjà des produits, notamment des peint tures et des vernis, appelés anti-fouling parce qu'ils con- tiennent des composants, comme le cuivre ou des alliages ou des sels de cuivre, qui sont défavorables à la croissance ou à l'existence même de la faune et de la flore aquatiques.Le choix des composants de ce genre connus jusqu'à présent repose sur le fait que ce sont des matières vénéneuses Pour cette raison, ce sont aussi des matières dangereuses pour le milieu aqueux environnant dans lequel elles se dispersent de sorte que l'effet recherché s'affaiblit avec le temps. Ainsi ce sont des polluants du milieu naturel ; de plus, en raison de leur dispersion, il est nécessaire de répéter assez fréquemment les opérations d'application des revêtements.The subject of the invention is an anti-fouling composition more commonly called anti-fouling intended to be added to the various coatings (paint, varnish, plasticized coating and the like) which are applied to the surface of immersed bodies or placed in a highly humid environment in order to if not to slow down the adhesion and the development on the surface of these bodies of aquatic fauna and flora. It also relates to any coating containing an amount sufficient to be effective for this composition,
Products are already known, in particular paints and varnishes, called anti-fouling because they contain components, such as copper or copper alloys or salts, which are unfavorable for growth or very existence of aquatic fauna and flora. The choice of components of this kind known so far is based on the fact that they are poisonous materials For this reason, they are also materials hazardous to the surrounding aqueous environment in which they disperse so that the desired effect weakens over time. Thus they are pollutants from the natural environment; moreover, because of their dispersion, it is necessary to repeat the coating application operations quite frequently.
L'invention a pour but principal de parvenir à une composition anti-salissure d'un type nouveau qui réunisse les qualités suivantes - activité élevée contre la faune et la flore aquatique qui
adhèrent aux surfaces immergées ou humides, - longue durée d'activité, - biodégradable dans le milieu aqueux donc non polluante pour
l'environnement.The main object of the invention is to achieve an anti-fouling composition of a new type which combines the following qualities - high activity against aquatic fauna and flora which
adhere to submerged or wet surfaces, - long service life, - biodegradable in the aqueous medium therefore non-polluting for
the environment.
On atteint ce but, selon l'invention, quand on prépare une composition anti-salissure contenant une quantité substantielle d'enzymes à activité endopeptidique et à activité protéolytique. This object is achieved, according to the invention, when an anti-fouling composition is prepared containing a substantial quantity of enzymes with endopeptide activity and with proteolytic activity.
Comme exemples d'enzymes préférées dans le cadre de l'invention, on peut citer : la protéase B 500, la protéase A2, la maxazyme HP, l'alcalase, la neutrase et leurs mélanges. On choisira avantageusement la protéase B 500 qui présente le maximum d'activité protéolytique du type alpha amylase, béta glucanase, protéase alcaline (Métalo-protéase). As examples of enzymes preferred in the context of the invention, there may be mentioned: protease B 500, protease A2, maxazyme HP, alkalase, neutrase and their mixtures. Advantageously, protease B 500 will be chosen which exhibits the maximum proteolytic activity of the alpha amylase, beta glucanase, alkaline protease (metalo-protease) type.
Les enzymes indiquées, et principalement celles qui sont citées ci-dessus, spécialement la protéase B 500, conservent leurs propriétés en milieu aqueux à forte concentration saline comme l'eau de mer, à une température comprise entre 15 et 550 C ; elles sont stables aux valeurs du pH de 5,5 à 8,5 avec un maximum d'activité au pH 6,5 - 7,5. The enzymes indicated, and mainly those mentioned above, especially protease B 500, retain their properties in an aqueous medium with a high salt concentration such as sea water, at a temperature between 15 and 550 C; they are stable at pH values from 5.5 to 8.5 with maximum activity at pH 6.5 - 7.5.
Elles sont compatibles avec les composants habituels des peintures, vernis, enduit plastifié, comme les résines, les solvants, les diluants, les pigments, les catalyseurs, les radicaux libres communément employés. They are compatible with the usual components of paints, varnishes, plastic coated, such as resins, solvents, thinners, pigments, catalysts, free radicals commonly used.
Elles protéolysent avec efficacité le phytoplancton, le zooplancton et les larves planctoniques. They efficiently proteolysate phytoplankton, zooplankton and planktonic larvae.
Les enzymes peuvent être utilisées à l'état libre ou à l'état fixé à l'aide de supports classiques appropriés (silice, membrane, polymères), les liaisons pouvant être du type covalentes. The enzymes can be used in the free state or in the fixed state using appropriate conventional supports (silica, membrane, polymers), the bonds being able to be of the covalent type.
Les enzymes de l'invention ont une action s'exer çant principalement contre la faune et la flore. Si on désire traiter des corps immergés en craignant un développement particulièrement marqué des algues et des champignons, il est possible d'ajouter aux enzymes au moins un additif antifongique comme l'acide carboxylique ou la natamycine ou leurs mélanges ces corps sont préférables en raison de leur forte activité algicide et antifongique. On observe alors un effet de synergie de ces additifs et des enzymes. The enzymes of the invention have an action which is exerted mainly against fauna and flora. If one wishes to treat submerged bodies, fearing a particularly marked development of algae and fungi, it is possible to add to enzymes at least one antifungal additive such as carboxylic acid or natamycin or their mixtures these bodies are preferable because of their strong algaecide and antifungal activity. We then observe a synergistic effect of these additives and enzymes.
La préparation de la composition de l'invention exige quelques précautions simples ; on prépare d'abord le support quand on prévoit d'en utiliser un, ce qui est souvent préférable, on ajoute ensuite le ou les algicides, ou homogénéise, on ajoute enfin le ou les enzymes et on homogénéise à nouveau. Le mélange doit être fait phase après phase, sans échauffement, de la manière la plus homogène possible. The preparation of the composition of the invention requires some simple precautions; we first prepare the support when we plan to use one, which is often preferable, then add the algaecide (s), or homogenize, finally add the enzyme (s) and homogenize again. The mixture must be made phase after phase, without heating, in the most homogeneous way possible.
Les algicides s'emploient-en quantité inférieure à celle des enzymes ; par exemple, elle peut représenter de 2 % à 30 % en poids du poids des enzymes, le plus souvent de 6 % à 20 %. Algicides are used in less quantity than enzymes; for example, it can represent from 2% to 30% by weight of the weight of the enzymes, most often from 6% to 20%.
La composition de l'invention s'ajoute au revêtement (peinture, vernis ou autre) des corps à protéger en proportion de 5 % à 15 % en poids de ce revêtement, de sorte que finalement les enzymes sont présentes en quantité de 3 à 10 % environ du revêtement et les algicides en quantité de l'ordre de plusieurs grammes par kg de revêtement. The composition of the invention is added to the coating (paint, varnish or other) of the bodies to be protected in a proportion of 5% to 15% by weight of this coating, so that finally the enzymes are present in an amount of 3 to 10 About% of the coating and algaecides in an amount of the order of several grams per kg of coating.
Des essais comparatifs ont été effectués entre la composition de l'invention et deux produits anti-fouling du commerce considérés comme particulièrement efficaces, connus sous les marques International Leader d'une part et
Micron 25 d'autre part.Comparative tests were carried out between the composition of the invention and two commercial anti-fouling products considered to be particularly effective, known under the brands International Leader on the one hand and
Micron 25 on the other hand.
Des matériaux divers (acier, alliage d'aluminium
AG4, teck, sapelli, bois stratifié, polyester, contreplaqué qualité marine, fibrociment) ont été employés sous forme de plaques de 30 x 30 x 2 cm qui ont été couvertes sur leurs deux faces principales opposées et suspendues dans l'eau de mer, dans le port de La Rochelle, à une profondeur minimum d'immersion de 0,80 m, pendant une durée de 9 mois, de Mars à
Décembre. Après cette période, l'état de salissure des faces principales a été apprécié et classé de la façon suivante - Classe 1 : surface propre sans dépôt, - Classe 2 : très léger dépôt qui permettrait de poursuivre
l'exploitation d'un bateau, - Classe 3 : dépôt et salissure nécessitant une réfection, - Classe 4 : dépôt important rendant la surface impropre à
l'exploitation. Various materials (steel, aluminum alloy
AG4, teak, sapelli, laminated wood, polyester, marine grade plywood, fiber cement) were used in the form of sheets of 30 x 30 x 2 cm which were covered on their two opposite main faces and suspended in seawater, in the port of La Rochelle, at a minimum immersion depth of 0.80 m, for a period of 9 months, from March to
December. After this period, the state of soiling of the main faces was assessed and classified as follows - Class 1: clean surface without deposit, - Class 2: very light deposit which would allow to continue
the operation of a boat, - Class 3: deposit and soiling requiring repair, - Class 4: significant deposit rendering the surface unsuitable for
exploitation.
Les résultats ont été les suivants
Nature des Antifouling Inter- Antifouling Composition
plaques national Leader Micron 25 de l'invention
Acier classe 3 classe 3 classe 2 classe 2
AG4 classe 4 classe 3 classe 2 classe 2
Teck classe 3 classe 3 classe 1 classe 1
Sapelli classe 3 classe 2 classe 1 classe 1
Bois stratifié classe 3 classe 2 classe 2 classe 1
Polyester classe 4 classe 3 classe 1 classe 1
Contreplaqué marine classe 3 classe 3 classe 2 classe 1
Fibrociment classe 3 classe 3 classe 2 classe 2
Dans les deux cas, la composition de l'invention s'est révélée supérieure au produit auquel elle était comparée. The results were as follows
Nature of Antifouling Inter- Antifouling Composition
national Leader Micron 25 plates of the invention
Steel class 3 class 3 class 2 class 2
AG4 class 4 class 3 class 2 class 2
Teak class 3 class 3 class 1 class 1
Sapelli class 3 class 2 class 1 class 1
Laminated wood class 3 class 2 class 2 class 1
Polyester class 4 class 3 class 1 class 1
Marine plywood class 3 class 3 class 2 class 1
Fiber class 3 class 3 class 2 class 2
In both cases, the composition of the invention was found to be superior to the product to which it was compared.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8405502A FR2562554A1 (en) | 1984-04-06 | 1984-04-06 | Antisoiling composition for addition to the coatings of immersed bodies and coating containing it |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8405502A FR2562554A1 (en) | 1984-04-06 | 1984-04-06 | Antisoiling composition for addition to the coatings of immersed bodies and coating containing it |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2562554A1 true FR2562554A1 (en) | 1985-10-11 |
Family
ID=9302942
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8405502A Pending FR2562554A1 (en) | 1984-04-06 | 1984-04-06 | Antisoiling composition for addition to the coatings of immersed bodies and coating containing it |
Country Status (1)
Country | Link |
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FR (1) | FR2562554A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995027009A1 (en) * | 1994-03-31 | 1995-10-12 | Stichting Scheikundig Onderzoek In Nederland | Antifouling paint containing haloperoxidases and method to determine halide concentrations |
US5919689A (en) * | 1996-10-29 | 1999-07-06 | Selvig; Thomas Allan | Marine antifouling methods and compositions |
DE19830848A1 (en) * | 1998-07-10 | 2000-01-13 | Daimler Chrysler Ag | Methods and agents for treating the surfaces of articles of daily use |
WO2001072911A1 (en) * | 2000-03-24 | 2001-10-04 | Biolocus Aps | Antifouling paint composition comprising rosin and enzyme |
US6342386B1 (en) | 1996-10-29 | 2002-01-29 | Warren Paul Powers | Methods for removing undesired growth from a surface |
WO2003087234A1 (en) * | 2002-04-12 | 2003-10-23 | Biolocus Aps | Antifouling composition comprising an enzyme in the absence of its substrate |
WO2007104316A1 (en) * | 2006-03-16 | 2007-09-20 | Aalborg Universitet | Coating of carbohydrate materials |
WO2008117176A3 (en) * | 2007-03-27 | 2008-11-20 | Danisco | Composition |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2384010A1 (en) * | 1977-03-15 | 1978-10-13 | Nal Pour Expl Oceans Centre | ANTI-FOULING PAINT |
-
1984
- 1984-04-06 FR FR8405502A patent/FR2562554A1/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2384010A1 (en) * | 1977-03-15 | 1978-10-13 | Nal Pour Expl Oceans Centre | ANTI-FOULING PAINT |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995027009A1 (en) * | 1994-03-31 | 1995-10-12 | Stichting Scheikundig Onderzoek In Nederland | Antifouling paint containing haloperoxidases and method to determine halide concentrations |
US5919689A (en) * | 1996-10-29 | 1999-07-06 | Selvig; Thomas Allan | Marine antifouling methods and compositions |
WO2000050521A1 (en) * | 1996-10-29 | 2000-08-31 | W.P. Powers Company | Marine antifouling methods and compositions |
US6342386B1 (en) | 1996-10-29 | 2002-01-29 | Warren Paul Powers | Methods for removing undesired growth from a surface |
DE19830848A1 (en) * | 1998-07-10 | 2000-01-13 | Daimler Chrysler Ag | Methods and agents for treating the surfaces of articles of daily use |
WO2001072911A1 (en) * | 2000-03-24 | 2001-10-04 | Biolocus Aps | Antifouling paint composition comprising rosin and enzyme |
WO2003087234A1 (en) * | 2002-04-12 | 2003-10-23 | Biolocus Aps | Antifouling composition comprising an enzyme in the absence of its substrate |
WO2007104316A1 (en) * | 2006-03-16 | 2007-09-20 | Aalborg Universitet | Coating of carbohydrate materials |
WO2008117176A3 (en) * | 2007-03-27 | 2008-11-20 | Danisco | Composition |
JP2010522796A (en) * | 2007-03-27 | 2010-07-08 | ダニスコ エイ/エス | Composition |
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