Provided is a curable composition which is free of organotin compounds to be environmentally friendly and whose cured product shows high elongation and high elastic recovery to be suitable particularly as a sealant. The present invention relates to a curable composition containing a reactive silyl group-containing organic polymer (A) which has a highly active reactive silyl group at a molecular chain end, and a compound (B) having 2 to 10 ethyloxy groups in its molecule but having no amino group in its molecule, the compound (B) being a C1-C20 saturated hydrocarbon having one alkoxysilyl group, a C1-C20 hydrocarbon having two or more alkoxysilyl groups, or a C1-C20 polycarboxylic acid ester.

The present invention relates to a process for producing high-purity hydrosilylation products, and also to the products that may be produced by this process and to the use thereof as surfactants.

A curable composition including a perfluoro(poly)ether group-containing silane compound having two or more Si atoms each bonding to at least one of a hydroxyl and hydrolyzable group, and a perfluoro(poly)ether group represented by: —(OC.sub.6F.sub.12).sub.a—(OC.sub.5F.sub.10).sub.b—(OC.sub.4F.sub.8).sub.c—(OC.sub.3X.sup.10.sub.6).sub.d—(OC.sub.2F.sub.4).sub.e—(OCF.sub.2).sub.f—, wherein a, b, c and d are each independently an integer of 0 to 30, e and f are each independently an integer of 1 to 200, the sum of a, b, c, d, e and f is at least 5, the occurrence order of respective repeating units with the subscript a, b, c, d, e or f is not limited, a ratio of e to f is less than 1.0, and each X.sup.10 is independently a hydrogen, fluorine or chlorine atom; an organosilicon compound having at least two —O—R.sup.g3(s) each bonding to a Si atom, wherein each R.sup.g3 is independently a hydrogen atom or a monovalent organic group; and a catalyst.

A curable composition including a perfluoro(poly)ether group-containing silane compound having two or more Si atoms each bonding to at least one of a hydroxyl and hydrolyzable group, and a perfluoro(poly)ether group represented by: —(OC.sub.6F.sub.12).sub.a—(OC.sub.5F.sub.10).sub.b—(OC.sub.4F.sub.8).sub.c—(OC.sub.3X.sup.10.sub.6).sub.d—(OC.sub.2F.sub.4).sub.e—(OCF.sub.2).sub.f—, wherein a, b, c and d are each independently an integer of 0 to 30, e and f are each independently an integer of 1 to 200, the sum of a, b, c, d, e and f is at least 5, the occurrence order of respective repeating units with the subscript a, b, c, d, e or f is not limited, a ratio of e to f is less than 1.0, and each X.sup.10 is independently a hydrogen, fluorine or chlorine atom; an organosilicon compound having at least two —O—R.sup.g3(s) each bonding to a Si atom, wherein each R.sup.g3 is independently a hydrogen atom or a monovalent organic group; and a catalyst.

The invention relates to curable coating compositions containing at least one surface modifying amphiphilic additive; and at least one siloxane-polyurethane coating composition. The invention also relates to methods of making and using the curable coating compositions of the invention. The invention also relates to objects coated with the curable coating composition of the invention. The invention also relates to methods for reducing or preventing biofouling of a surface exposed to an aqueous environment comprising the steps of coating the surface with the curable coating composition of the invention to form a coated surface, and curing the coating composition on the coated surface. The invention also relates to a marine fouling-release coating containing the curable coating composition of the invention.

A curable composition including a perfluoro(poly)ether group-containing silane compound having two or more Si atoms each bonding to at least one of a hydroxyl and hydrolyzable group, and a perfluoro(poly)ether group represented by: —(OC.sub.6F.sub.12).sub.a—(OC.sub.5F.sub.10).sub.b—(OC.sub.4F.sub.8).sub.c—(OC.sub.3X.sup.10.sub.6).sub.d—(OC.sub.2F.sub.4).sub.e—(OCF.sub.2).sub.f—, wherein a, b, c and d are each independently an integer of 0 to 30, e and f are each independently an integer of 1 to 200, the sum of a, b, c, d, e and f is at least 5, the occurrence order of respective repeating units with the subscript a, b, c, d, e or f is not limited, a ratio of e to f is less than 1.0, and each X.sup.10 is independently a hydrogen, fluorine or chlorine atom; an organosilicon compound having at least two —O—R.sup.g3(s) each bonding to a Si atom, wherein each R.sup.g3 is independently a hydrogen atom or a monovalent organic group; and a catalyst.

A curable composition including a perfluoro(poly)ether group-containing silane compound having two or more Si atoms each bonding to at least one of a hydroxyl and hydrolyzable group, and a perfluoro(poly)ether group represented by: —(OC.sub.6F.sub.12).sub.a—(OC.sub.5F.sub.10).sub.b—(OC.sub.4F.sub.8).sub.c—(OC.sub.3X.sup.10.sub.6).sub.d—(OC.sub.2F.sub.4).sub.e—(OCF.sub.2).sub.f—, wherein a, b, c and d are each independently an integer of 0 to 30, e and f are each independently an integer of 1 to 200, the sum of a, b, c, d, e and f is at least 5, the occurrence order of respective repeating units with the subscript a, b, c, d, e or f is not limited, a ratio of e to f is less than 1.0, and each X.sup.10 is independently a hydrogen, fluorine or chlorine atom; an organosilicon compound having at least two —O—R.sup.g3(s) each bonding to a Si atom, wherein each R.sup.g3 is independently a hydrogen atom or a monovalent organic group; and a catalyst.

The present invention relates to novel (per)fluoropolyether (PFPE) polymer derivatives, a method for their manufacture and their use for providing an anti-soiling coating.

The present invention relates to novel (per)fluoropolyether (PFPE) polymer derivatives, a method for their manufacture and their use for providing an anti-soiling coating.

The present invention relates to a moisture-crosslinkable composition comprising: at least one polymer (A) comprising at least one alkoxysilane group; at least 25% by weight of at least one carbonate filler (B) relative to the total weight of said composition; at least one compound chosen from bis(alkoxysilane)s or tri(alkoxysilane)s (C) having a molar mass ranging from 250 to 1000 g/mol; at least one crosslinking catalyst (D);
said composition being characterized in that it comprises a plasticizer content of less than or equal to 1% by weight relative to the total weight of the composition.