A fluorine-containing curable composition which contains, as essential components, component (A) that is composed of a compound which is a linear polymer having a fluoropolyether in the main chain, while having a trifluoromethyl group at one end of the molecular chain and two or more (meth)acryl groups at the other end, component (B) that is composed of a compound which is a linear polymer having a fluoropolyether in the main chain, while having two or more (meth)acryl groups at each end of the molecular chain, and which has four to ten (meth)acryl groups in each molecule on average, and component (C) that is composed of a non-fluorinated acrylic compound which contains no fluoropolyether structure, while having two or more (meth)acryl groups in each molecule on average; the total blending amount of component (A) and component (B) relative to 100 parts by mass of component (C) is from 0.05 to 50 parts by mass; and the blending amount of component (A) relative to 100 parts by mass of component (B) is 1 to 100 parts by mass. This fluorine-containing curable composition is capable of forming a cured film that exhibits excellent antifouling properties and excellent water repellency, while having a low coefficient of kinetic friction.

The present application describes novel antifouling coating compositions comprising carbon-based hydrolysable polymers of ethylenically unsaturated monomers of which some include cyclic carbonates or cyclic ethers, e.g. (2,2-dimethyl-1,3-dioxolan-4-yl)methyl (meth)acrylate (IPGA/IPGMA), isopropylidene glycerol ethoxylated acrylate (iPGEOA), isopropylidene glycerol ethoxylated methacrylate (iPGEOMA) and (2-oxo-1,3-dioxolan-4-yl)methyl (meth)acrylate (GCA/GCMA), and their use in antifouling coating compositions. Novel polymers are also described.

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.

A problem to be solved by this disclosure is to provide a composition, preferably a composition for forming a liquid-repellent coating film. This problem is solved by a composition comprising [1] a polymer constituting a water-repellent component, the polymer containing a constituent unit derived from (A) at least one modified fine particle containing (i) a core fine particle and (ii) one or more modifying moieties that modify the core fine particle, wherein some or all of the one or more modifying moieties have one or more polymerizable groups (a), and a constituent unit derived from (Bs) at least one compound containing one or more polymerizable groups (b) in the molecule, and containing fluorine; [2] a monomer (Bm) constituting an abrasion-resistant component; and [3] a solvent mainly containing one or more solvents selected from the group consisting of non-fluorine organic solvents and water,
wherein the ratio of the mass of the abrasion-resistant component [2] to the total mass of the water-repellent component [1] and the abrasion-resistant component [2] is 85:100 to 35:100.

A novel omniphobic surface coating is disclosed that provides both high oil-repellency and high-water repellency to the coated surface. The coating may contain perfluoropolyether (PFPE) or a similar fluorinated or perfluorinated polymer, as well as a hardener and a catalyst. One or more surfactants or viscosifiers may also be added. Further, the coating may contain one or more functional additives, including, but not limited to, coloring agents, anti-corrosive agents, anti-fouling agents, water-repellent agents, and/or oil-repellent agents. Methods for formulating the novel omniphobic surface coating are also described. Such methods include preparing a first part of the coating, which may contain, at minimum, a polymer such as PFPE or a similar fluorinated or perfluorinated polymer, and a suitable solvent; preparing a second part of the coating, which is a water-free system that may contain, at minimum, a hardener and a catalyst; and combining the first part and the second part together.

Provided is a fluororesin coating composition for forming a topcoat having improved non-tackiness and water and oil repellency. The fluororesin is crystalline tetrafluoroethylene and perfluoro(ethyl vinyl ether) copolymer having a perfluoro(ethyl vinyl ether) content of 8 to 20 mass % based on the total mass of the copolymer.

The invention provides a composition for forming a coating film having an ability to suppress adhesion of biological substances, a coating film using the same, a substrate for cell culture using the same, a laminated film and a method for producing a cell aggregate(s). The composition for forming a coating film comprises a polymer containing unit structures represented by the formula (1) and the formula (2):

##STR00001##

wherein R.sup.1 to R.sup.3, X.sup.1, X.sup.2, T.sup.1, n1, n2 and n3 are as defined herein but not containing a polysiloxane skeleton, and a solvent.

The invention relates to a tie-coat composition comprising one or more binder polymers obtainable by copolymerizing a mixture of ethylenically unsaturated monomers, the one or more binder polymers comprising pendant curable alkoxysilyl functional groups of general formula (I) —X-L-Si(R.sup.1).sub.n(OR.sup.2).sub.(3-n) (I) wherein L is a hydrocarbon linker group having 1 to 20 carbon atoms, X is a heteroatom other than a sulphur atom, n is 0, 1, or 2; R.sup.1 is an alkyl radical with 1 to 20 carbon atoms, R.sup.2 is an alkyl radical with 1 to 20 carbon atoms or an alkylalkoxy radical with 2 to 20 carbon atoms, wherein in at least 5 mole % of the curable alkoxysilyl functional groups comprised in the one or more binder polymers the hydrocarbon linker group L is a methyldiyl group (L1) and in at least 5 mole % of the curable alkoxysilyl functional groups comprised in the one or more binder polymers the hydrocarbon linker group L is a hydrocarbon group having 2 to 20 carbon atoms (L2), wherein the tie-coat composition does not comprise a crosslinking agent. The invention further relates to a process for controlling aquatic fouling on a surface of a man-made object comprising applying such tie-coat composition and a topcoat composition, and to a substrate coated with a tie-coat layer deposited from such tie-coat composition and a topcoat layer.

Zwitterionic monomers, carnitine-derived zwitterionic polymers, carnitine ester cationic monomers, carnitine ester cationic polymers, conjugate compositions including a carnitine-derived zwitterionic polymer, and related compositions' and methods are provided which have various uses including as coatings, pharmaceuticals, diagnostics, encapsulation materials, and antifouling materials, among other utilities.

Provided are a copolymer containing: a structural unit (A) derived from a polymerizable monomer (a) having a silicon atom-containing group represented by formula (1) [wherein R.sup.1, R.sup.2, and R.sup.3 each independently represent a hydrocarbon group having a carbon number of 1 to 6]; and a structural unit (B) derived from a polymerizable monomer (b) copolymerizable with the polymerizable monomer (a) with the content of the structural unit (A) being from 40 mass % to 80 mass % in 100 mass % of the copolymer, the content of the structural unit (B) being from 20 mass % to 60 mass % in 100 mass % of the copolymer, and an acid value derived from free carboxy group being from 0.1 KOHmg/g to 60 KOHmg/g; and an antifouling coating composition containing the copolymer.