An object of the present invention is to provide a monomer having a polysiloxane structure and capable of providing a polymer having sufficient compatibility and hydrolysis resistance while having high oxygen permeability useful for an ophthalmic device, and a method for producing the monomer. The present invention provides a compound represented by the formula (1) which has a radical-polymerizable group at one terminal, one to three alkylsiloxy groups having a hydrophilic and bulky group represented by formula (3-A) or formula (3-B), and has a divalent hydrocarbon group L which has 2 to 20 carbon atoms and may contain one or more selected from an ether bond and a urethane bond, a part of hydrogen atoms bonded to the carbon atoms may be substituted with a hydroxyl group.

A catalyst having a specific structure and a method of preparing the catalyst is disclosed. A composition is also disclosed, which comprises: (A) an unsaturated compound including at least one aliphatically unsaturated group per molecule, subject to at least one of the following two provisos: (1) the (A) unsaturated compound also includes at least one silicon-bonded hydrogen atom per molecule; and/or (2) the composition further comprises (B) a silicon hydride compound including at least one silicon-bonded hydrogen atom per molecule. The composition further comprises (C) the catalyst. A method of preparing a hydrosilylation reaction product and a dehydrogenative silylation reaction product are also disclosed.

Nanoparticles that can be used as hydrosilylation and dehydrogenative silylation catalysts. The nanoparticles have at least one transition metal with an oxidation state of 0, chosen from the metals of columns 8, 9 and 10 of the periodic table, and at least one carbonyl ligand, preferably a silicide.

Provided are a novel isocyanide compound, a hydrosilylation reaction catalyst having excellent handling properties and storage properties that allows a hydrosilylation reaction to proceed under moderate conditions by using the isocyanide compound, and a method for producing an addition compound by a hydrosilylation reaction using the hydrosilylation reaction catalyst. A hydrosilylation reaction catalyst prepared from a catalyst precursor comprising a transition metal compound of groups 8, 9, or 10 of the periodic table, excluding platinum, such as an iron carboxylate, cobalt carboxylate, or nickel carboxylate, and a ligand comprising an isocyanide compound having an organosiloxane group.

The invention relates to a hydrosilylatable mixture M containing: (A) a compound with at least one hydrogen atom directly bonded to Si, (B) a compound containing at least one carbon-carbon multiple bond, and (C) a compound containing at least one cationic Si(II) group. The invention also relates to a method for hydrosilylating the mixture M.

An object of the present invention is to provide a monomer having a polysiloxane structure and capable of providing a polymer having sufficient compatibility and hydrolysis resistance while having high oxygen permeability useful for an ophthalmic device, and a method for producing the monomer.

The present invention provides a siloxane compound represented by the formula (1) which has a radical-polymerizable group at one terminal and an alkyl group having 1 to 10 carbon atoms at the other terminal, and has a divalent hydrocarbon group L which has 2 to 20 carbon atoms and may contain one or more selected from an ether bond and a urethane bond, wherein a part of hydrogen atoms bonded to the carbon atoms may be substituted with a hydroxyl group. The siloxane compound further has a hydrophilic group represented by formula (3) bonded to a silicon atom in the siloxane chain.

A catalyst having a specific structure and a method of preparing the catalyst is disclosed. A composition is also disclosed, which comprises: (A) an unsaturated compound including at least one aliphatically unsaturated group per molecule, subject to at least one of the following two provisos: (1) the (A) unsaturated compound also includes at least one silicon-bonded hydrogen atom per molecule; and/or (2) the composition further comprises (B) a silicon hydride compound including at least one silicon-bonded hydrogen atom per molecule. The composition further comprises (C) the catalyst. A method of preparing a hydrosilylation reaction product and a dehydrogenative silylation reaction product are also disclosed.

The present invention provides a silicon-containing compound shown by the following formula (1): ##STR00001##
wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 each independently represent a linear, branched, or cyclic alkyl group having 1 to 6 carbon atoms, a phenyl group, a 3,3,3-trifluoropropyl group, or a group shown by (OSiR.sup.7R.sup.8).sub.nOSiR.sup.9R.sup.10R.sup.11; R.sup.7, R.sup.8, R.sup.9, R.sup.10, and R.sup.11 have the same meanings as R.sup.1 to R.sup.6; X represents a linear or branched alkylene group having 3 to 7 carbon atoms optionally having an ether group; and n is an integer in the range of 0 to 100. This provides a stretchable film that has excellent stretchability and strength, with the film surface having excellent repellency, and a method for forming the same; as well as a urethane resin used for the stretchable film; and a silicon-containing compound to be a material of the urethane resin.

Provided are a novel isocyanide compound, a hydrosilylation reaction catalyst having excellent handling properties and storage properties that allows a hydrosilylation reaction to proceed under moderate conditions by using the isocyanide compound, and a method for producing an addition compound by a hydrosilylation reaction using the hydrosilylation reaction catalyst.

A hydrosilylation reaction catalyst prepared from a catalyst precursor comprising a transition metal compound of groups 8, 9, or 10 of the periodic table, excluding platinum, such as an iron carboxylate, cobalt carboxylate, or nickel carboxylate, and a ligand comprising an isocyanide compound having an organosiloxane group.

The invention provides a mixture M containing compound A which contains at least one hydrogen atom bound directly to Si, compound B which contains at least one carbon-carbon multiple bond, compound C which contains at least one cationic Si(II) group and compound D which contains at least one alkoxy group bound directly to silicon, and also a method for hydrosilylating the mixture M, wherein the mixture M is heated.