The present invention provides a radiation curable composition comprising a hydroxyl functional urethane (meth)acrylate compound (A) having an hydroxyl value between 10 and 80 mg KOH/g and which is the reaction product of a hydroxyl functional (meth)acrylate compound (A1) obtained from the reaction a or b: a. at least one diepoxy functional compound (A11a) with a (meth)acrylate compound (A11b) comprising at least one (meth)acrylate group and one carboxylic acid functional group or b. a carboxylic acid functional compound (A12a) comprising two carboxylic acid groups with an epoxy (meth)acrylate compound (A12b) comprising one glycidyl group and at least one (meth)acrylate group, with a diisocyanate functional compound (A3), and optionally a compound (A2) different of compound (A1) comprising two hydroxyl groups. Such composition is useful for example for dual curable compositions or for thick pigmented systems.

Provided is a hydrosilylation reactive composition that has a sufficient pot life at room temperature, that can be cured at low temperature by exposure to high energy radiation, and that produces a stable semi-cured product during the curing process, and to provide a semi-cured product and a cured product obtained using this hydrosilylation reactive composition. The composition comprises: (A) a compound containing at least one aliphatically unsaturated monovalent hydrocarbon group in the molecule; (B) a compound containing at least two hydrogen atoms bonded to silicon atoms in the molecule; (C) a first hydrosilylation catalyst exhibiting activity in the composition without exposure to high energy radiation; and (D) a second hydrosilylation catalyst not exhibiting activity unless exposed to high energy radiation, and exhibiting activity in the composition by exposure to high energy radiation.

The present invention provides a crosslinked molded article having a lower compression set; and a method for producing a crosslinked molded article by injection molding, the method enabling shortening of one cycle in injection molding, the method being suitable for obtaining a crosslinked molded article having a lower compression set. The present invention relates to a method for producing a crosslinked molded article, comprising melt-kneading a polymer composition containing a polymer having a terminal double bond, a hydrosilyl group-containing compound (Y) having at least two hydrosilyl groups per molecule, a platinum-based catalyst (Z) for hydrosilicon crosslinking, and a reaction inhibitor (D), subjecting the polymer composition to injection molding in a mold, performing primary crosslinking in the mold, removing the primary-crosslinked molded article from the mold, and then performing secondary crosslinking in a heat medium.

The present invention relates to a method for producing an ionic liquid-containing structure, including: an inorganic network structure forming step of forming a network structure of an inorganic compound in the presence of an ionic liquid; and a polymer network structure forming step of forming a polymer network structure of a prepolymer and a crosslinking agent in the presence of the ionic liquid.

A fluororubber composition that is a kneaded mixture of a carbon nanotube masterbatch comprising 4 to 20 parts by weight of multilayer carbon nanotubes, which are fibrous carbon nanostructures that do not contain monolayer carbon nanotubes, based on 100 parts by weight of a fluororubber polymer, and a fluororubber raw material comprising at least a fluororubber polymer and a reinforcing filler, in which the multilayer carbon nanotubes are compounded in an amount of 0.5 to 6 wt. % in the kneaded mixture. The kneading is performed using a roll or a kneader when the fluororubber composition is produced. The fluororubber composition can provide a fluororubber crosslinked molded article that exhibits abrasion resistance and blister resistance.

Disclosed is a method for producing a nanofibrous non-woven material and a nanofibrous non-woven material with cross-linked gelatin nanofibers. The method includes producing gelatin nanofibers; producing a nanofibrous material using the produced gelatin nanofibers; and treating the nanofibrous material by a crosslinking agent for forming adhesion bonds in the nanofibrous material and to obtain the nanofibrous non-woven material.

A shear-thinning hydrogel composition includes: a first polymer chain including: (i) a first plurality of units each having at least one of a monosaccharide and an amino acid; and (ii) a cross-linking group bound to the at least one of the monosaccharide and the amino acid of one of the first plurality of units via conversion of a carboxyl group of the unit to a peptide bond; a second polymer chain including a second plurality of the units; and a cross-linking additive connecting one of the second plurality of units to the first polymer chain via the cross-linking group.

A novel modified polypropylene resin is provided which makes it possible to provide, by an extrusion expansion method, expanded polypropylene-based resin particles having an expansion ratio which falls within a wide range and having a low open cell ratio. The novel modified polypropylene resin is obtained by a method of producing the modified polypropylene resin where the method includes a melting and kneading step of melting and kneading a particular random polypropylene resin, a conjugated diene compound, and a particular radical polymerization initiator to obtain the modified polypropylene resin.

A composition containing the following components: (a) a polysiloxane having at least one alkenyl functional group and at least one alkoxy functional group; (b) a mercapto-functional polysiloxane with at least one mercapto functionality; (c) a silane crosslinker with at least two alkoxy groups per molecule; (d) a photoinitiator; (e) a combination of zirconium tetraalkoxylate and alkylacetoacetate at a mole ratio in a range of 1:1 to 1:4.

The invention relates to a method for producing a fiber-reinforced, polymeric continuous profiled element (1), wherein the continuous profiled element (1), having preferably at least one hollow chamber (2, 2), comprises a core profile (10) which can be produced by means of a pultrusion process, and wherein during the pultrusion process at least one continuous strand having reinforcement fibers (5) is integrated into the polymer matrix (4) of the core profile (10). According to the invention, the curing of the core profile (10) is carried out by means of a dual-cure method.