A silicone-polyether copolymer has the formula X.sub.gY, where each X is an independently selected silicone moiety having a particular structure, Y is a linear or branched polyether moiety, and subscript g is on average more than 1. A method of preparing the silicone-polyether copolymer comprising reacting a polyether compound and an organosilicon compound in the presence of a hydrosilylation-reaction catalyst. A sealant is also disclosed, the sealant comprising the silicone-polyether copolymer and a condensation-reaction catalyst.

A silicone-polyether copolymer has the formula XY, where X is a silicone moiety having a particular structure and Y is a polyether moiety. An isocyanate-functional silicone-polyether copolymer formed therewith is also disclosed. Further, a silicone-poly-ether-urethane copolymer formed with the isocyanate-functional silicone-polyether copolymer is disclosed. Related methods of preparation as well as sealants and cured products thereof are further disclosed.

The present invention relates to a catalyst composition for hydroformylation and a hydroformylation method using the same, and more particularly to a catalyst composition for hydroformylation including a phosphoramidite ligand and a transition metal catalyst, and a hydroformylation method using the catalyst composition. In accordance with the present invention, provided are a catalyst composition for hydroformylation which increases productivity and provides superior catalytic activity and stability while lowering an n/i ratio in generated aldehyde upon hydroformylation of an olefinic compound, and a method of hydroformylating an olefinic compound using the catalyst composition. [Representative Figure] FIG. 1

A process for cross-linking siloxane and organic polymers comprising reacting (a) a silyl hydride with (b) an unsaturated polymeric compound in the presence of (d) a platinum diene compound with a chelating dianionic ligand.

A complex that includes a metal fine particle dispersant including a branched polymer compound having an ammonium group and having a weight average molecular weight of 500 to 5,000,000; and a metal fine particle, wherein the metal fine particle includes platinum (Pt) or palladium (Pd), the metal fine particle dispersant includes a branched polymer compound of Formula (1): ##STR00001##

Use of transition metal complexes of the formula (I) in organic light-emitting diodes ##STR00001## where: M.sup.1 is a metal atom; carbene is a carbene ligand; L is a monoanionic or dianionic ligand; K is an uncharged monodentate or bidentate ligand selected from the group consisting of phosphines; CO; pyridines; nitriles and conjugated dienes which form a complex with M.sup.1; n is the number of carbene ligands and is at least 1; m is the number of ligands L, where m can be 0 or 1; o is the number of ligands K, where o can be 0 or 1; where the sum n+m+o is dependent on the oxidation state and coordination number of the metal atom and on the denticity of the ligands carbene, L and K and also on the charge on the ligands carbene and L, with the proviso that n is at least 1, and also
an OLED comprising these transition metal complexes, a light-emitting layer comprising these transition metal complexes, OLEDs comprising this light-emitting layer, devices comprising an OLED according to the present invention, and specific transition metal complexes comprising at least two carbene ligands.

A method of forming a porous three-dimensional (3D) is disclosed. The method comprises (I) printing a first composition on a substrate (16) with the nozzle (12) of the apparatus (10) to form at least one first filament (14) comprising the first composition, (II) selectively controlling the distance and/or the speed such that the at least one first filament coils on the substrate to give a first layer on the substrate, the first layer comprising a coiled filament, optionally repeating steps I) and II) with independently selected composition(s) for any additional layer(s), and (III) exposing the layer(s) to a solidification condition. A porous three-dimensional (3D) article formed in accordance with the method is also disclosed.

The present invention concerns a composite comprising supported nanoclusters, the nanoclusters comprising one or more metal ion-containing compounds, wherein each metal ion-containing compound is a transition metal complex having ligands coordinated to a transition metal ion, the ligands being selected from the group consisting of glyoxime; a glyoxime derivative; salicylaldimine; and a salicylaldimine derivative; and wherein the nanoclusters are spaced across one or more surfaces of a support; a material prepared from the composite by annealing; and solution-based methods for forming the composite and materials. Uses of the metal ion-containing compounds are also described, as are uses of the products as catalysts and adsorbers.

The present invention provides novel transition-metal precatalysts that are useful in preparing active coupling catalysts. In certain embodiments, the precatalysts of the invention are air-stable and moisture-stable. The present invention further provides methods of making and using the precatalysts of the invention.

A process produces a C.sub.3- to C.sub.20-alkyltrialkoxysilane by hydrosilylation, wherein alkoxy represents methoxy, ethoxy or propoxy. Initially, a mixture is charged of at least one hydroalkoxysilane from the group of hydrotrialkoxysilane, hydroalkyldialkoxysilane, and hydrodialkylalkoxysilane, and a Pt catalyst. The mixture is then heated to a temperature of 30 C. to 60 C. Subsequently, with mixing, an omega-unsaturated or mono-unsaturated C.sub.3- to C.sub.20-hydrocarbon, at least one carboxylic acid and at least one alcohol as cocatalysts are added to the mixture. The mixture is then reacted and subsequently worked up to obtain the product.