The present invention provides application of camptothecin and derivatives thereof as antifouling agent, relating to camptothecin. Application of camptothecin and derivatives thereof as antifouling agent for facilities in water is provided, wherein the antifouling agent contains camptothecin and/or at least one of its derivatives. The application of camptothecin and derivatives thereof as antifouling agent for facilities in water can be used to prevent attachment of marine or freshwater micro-fouling organisms and/or large fouling organisms to the surfaces of facilities in the sea, lake, river or pool. The antifouling agent may also be used in mixture with other antifouling substance. Antifouling method for artificial facilities in water is provided. An antifouling paint for facilities in water is provided. Camptothecin and its derivatives have significant inhibitory activity to the attachment of fouling organisms, i.e. having antifouling activity, and can be used to prevent the attachment of fouling organisms on the surfaces of artificial facilities in water. Camptothecin and its derivatives have high antifouling activity, good antifouling efficiency, and broad-spectrum antifouling.

A surface treatment composition including a perfluoropolyether group-containing silane compound and a solvent, wherein a proportion of the perfluoropolyether group-containing silane compound based on a total amount of the perfluoropolyether group-containing silane compound and the solvent is in the range from 30 to 99% by mass.

A surface treatment composition including a perfluoropolyether group-containing silane compound and a solvent, wherein a proportion of the perfluoropolyether group-containing silane compound based on a total amount of the perfluoropolyether group-containing silane compound and the solvent is in the range from 30 to 99% by mass.

The subject matter of the present invention concerns means of storage, transport and/or biocide treatment of a liquid, paste or gel, characterized in that said means comprises a copper base powder composition, said composition: containing at least 60% by weight of copper, does not contain more than 70% by weight of powder particles whose diameter is less than 45 μm maximum, and is at least partially in contact with said liquid, paste or gel.

A process for forming a fingerprint-resistant coating on a substrate comprising activating the substrate by exposure to a plasma, and then depositing on the activated substrate at least one alkyl backbone monolayer, and hydroxyl-polyhedral oligomeric silsesquioxane (OH—POSS) nanoparticles.

The present invention provides a process for treating and drying a marine or submarine textile material to inhibit biofouling thereof. The invention further provides a marine or submarine textile material with antifouling properties obtained by the process of the invention, as well as the use of an antifouling formulation according to this invention for inhibiting the biofouling of marine and submarine textile materials.

The present invention relates to a sheet-like element suitable for use in a food packaging, comprising a coating layer comprising surface-reacted calcium carbonate. The coating layer is adapted for being loaded with an antimicrobial active composition, such as an essential oil. The present invention further relates to a coating layer comprising surface-reacted calcium carbonate loaded with an antimicrobial active composition suitable for use in a food packaging, as well as to a process for the manufacture of said sheet-like element, a sheet-like element supply device, a food packaging comprising said sheet-like element, the use of said sheet-like element in a food packaging and the use of said sheet-like element for achieving an antimicrobial and/or antifungal and/or anti-mould and/or antifouling effect in a food packaging.

Some implementations of the present disclosure prevent, reduce or at least slow equipment fouling using passivation as a treatment prior to contacting metallic components with hydrocarbon containing fluid, that is, an environment where fouling occurs. For example, one implementation includes a method of passivating heat exchangers in a SAGD process or system using the compositions and compounds of the present disclosure. The composition may be applied to a component prior to its first inclusion in an online system or following placing the system offline for maintenance. The composition may be used to treat metallic equipment surface(s), for example, via contacting them with a suspension or solution of the composition described herein, prior placing the system online. The method may further include treatment of the process fluid, for example, via injection or batch treatment of the composition with the compositions described herein into the process fluid.

The present invention relates to a dispersion liquid of titanium oxide-tungsten oxide composite photocatalytic fine particles that is characterized by having two types of photocatalytic fine particles dispersed in an aqueous dispersion medium, the fine particles including i) fine particles of titanium oxide that contain a peroxotitanium component and a copper component and ii) fine particles of tungsten oxide. The present invention can provide a dispersion liquid and the like that can be used to conveniently manufacture a photocatalytic thin film that demonstrates photocatalytic activity even within visible light (400-800 nm) only, exhibits high antibacterial performance, is highly durable, and wherein the state of copper coordination is stable against exposure to heat and ultraviolet rays and is not easily modified. The dispersion liquid is a dispersion liquid of titanium oxide-tungsten oxide composite photocatalytic fine particles that contains copper-containing titanium oxide fine particles.

The present invention relates to a dispersion liquid of titanium oxide-tungsten oxide composite photocatalytic fine particles that is characterized by having two types of photocatalytic fine particles dispersed in an aqueous dispersion medium, the fine particles including i) fine particles of titanium oxide that contain a peroxotitanium component and a copper component and ii) fine particles of tungsten oxide. The present invention can provide a dispersion liquid and the like that can be used to conveniently manufacture a photocatalytic thin film that demonstrates photocatalytic activity even within visible light (400-800 nm) only, exhibits high antibacterial performance, is highly durable, and wherein the state of copper coordination is stable against exposure to heat and ultraviolet rays and is not easily modified. The dispersion liquid is a dispersion liquid of titanium oxide-tungsten oxide composite photocatalytic fine particles that contains copper-containing titanium oxide fine particles.