An erodible antifouling coating composition for application, for example, to ship's hulls to potentially prevent the adhesion and build-up of fouling agents on the hull is described. The coating composition includes 10 to 60% by solids weight of an erodible binder system that excludes a triorgano tin based binder; one or more antifouling agents; and 1 to 10% solids weight of a mixture of silicone oils, wherein the mixture includes a first and second silicone oil each comprising alkyl and aryl groups attached to silicone in a different ratio. A process for producing the composition, a substrate coated with the composition, and a process of coating a substrate with the composition are also described.

The present invention provides an aquatic organism repellent paint composition having good dispersion stability and capable of maintaining the repellent effect on aquatic organisms over a long time. The present invention relates to an aquatic organism repellent paint composition containing: a vinyl alcohol polymer (A) having a degree of saponification of more than 65 mol % and less than 88 mol %; an inorganic oxide (B); and a solvent (C).

Provided are a coating composition containing a silicon atom-containing resin and a defoaming agent, a coating film formed from the same, an in-water structure and a ship having the coating film. In the coating composition, the silicon atom-containing resin includes a constituent unit (A) derived from a monomer (a) having at least one kind of silicon atom-containing group selected from the group consisting of groups represented by the formula (I), the formula (II), the formula (III), and the formula (IV), the monomer (a) has a molecular weight of greater than or equal to 400 and less than or equal to 2500, and the content of the defoaming agent is greater than or equal to 0.7 parts by mass and less than or equal to 24 parts by mass with respect to 100 parts by mass of the silicon atom-containing resin.

The object of present invention is to provide a transparent film which further improves a slip characteristic of waterdrop. The present invention is a transparent film having a polysiloxane backbone, the transparent film having a structure (a) in which a fluorine-containing group having a perfluoroalkyl group or a perfluoropolyether group on the free end side thereof is bonded to a silicon atom of the polysiloxane backbone, and the transparent film having a slip rate of 0.2 mm/s or more for a 120 l waterdrop on an 8 incline. In preferred embodiment, the fluorine-containing groups are bonded to some silicon atoms of the polysiloxane backbone in structure (a), and the transparent film has a structure (b) in which carbon fluoride-containing groups or hydrolysable silane oligomer residue are bonded to some of the remaining silicon atoms of the polysiloxane backbone.

The present invention relates to antifouling compositions comprising copper di(ethyl 4,4,4-trifluoroacetoacetate) (Cu(ETFAA)2) that are highly effective against marine biofouling of surfaces of ships and marine structures, their use for inhibiting marine biofouling, as well as antifouling paints comprising said compositions.

Free-standing non-fouling polymers and polymeric compositions, monomers and macromonomers for making the polymers and polymeric compositions, objects made from the polymers and polymeric compositions, and methods for making and using the polymers and polymeric compositions.

The present invention provides a perfluoro(poly)ether group containing silane compound of

(Rf-PFPE).sub.X(CR.sup.a.sub.kR.sup.b.sub.lR.sup.c.sub.m).sub.(1a)

(R.sup.c.sub.mR.sup.b.sub.lR.sup.a.sub.kC).sub.XPFPE-X(CR.sup.a.sub.kR.sup.b.sub.lR.sup.c.sub.m).sub.(1b)

wherein the symbols are as defined in the description.

The invention describes the use of a water-based energy curable inkjet ink or coating composition comprising one or more synthetic rheology modifiers, one or more energy curable resins, one or more tertiary amines, and water. The viscosity of the water-based energy curable inkjet ink or coating compositions is fine tuned to the requirements of the print head through the use of a synthetic thickener. The extremely low levels required of this type of material are particularly advantageous because they then have little if any impact on the physical properties of the dried and UV cured ink. Surprisingly, the use of s synthetic thickener at these low levels gives Newtonian character inks.

The present invention provides a perfluoro(poly)ether group containing silane compound of the formula (1):

XR.sup.a.sub.R.sup.b.sub.R.sup.c.sub.(1)

wherein each symbols are as defined in the description.

This disclosure describes incorporation of a liquid additive within one or more phases of a multiphase polymer coating. The structure of the microphase-separated network provides reservoirs for liquid in discrete and/or continuous phases. Some variations provide an anti-fouling segmented copolymer composition comprising: (a) one or more first soft segments selected from fluoropolymers; (b) one or more second soft segments selected from polyesters or polyethers; (c) one or more isocyanate species; (d) one or more polyol or polyamine chain extenders or crosslinkers; and (e) a liquid additive disposed in the first soft segments and/or the second soft segments. The first soft segments and the second soft segments are microphase-separated on a microphase-separation length scale from 0.1 microns to 500 microns. These solid/liquid hybrid materials improve physical properties associated with the coating in applications such as anti-fouling (e.g., anti-ice or anti-bug) surfaces, ion conduction, and corrosion resistance.