The invention relates to a biocompatible, flexible, haemostatic sheet comprising: a water-resistant cohesive fibrous carrier structure comprising a three-dimensional interconnected interstitial space, said fibrous carrier structure comprising fibres containing a nucleophilic polymer carrying reactive nucleophilic groups; and distributed within the interstitial space, a plurality of reactive polymer particles comprising a water-soluble electrophilic polymer carrying at least three reactive electrophilic groups that are capable of reacting with amine groups in tissue and blood, as well as with reactive nucleophilic groups of the nucleophilic polymer, under the formation of a covalent bond, said reactive polymer particles having a diameter in the range of 0.5-100 μm and being present in an amount of at least 3% by weight of the fibrous carrier structure.

When blood is absorbed by the haemostatic sheet of the present invention, the reactive polymer particles within the sheet start dissolving as soon as they are ‘wetted’ by the blood, thereby allowing the electrophilic polymer to react with both reactive nucleophilic groups in the blood and tissue and reactive nucleophilic groups in the fibrous carrier structure, thereby inducing blood coagulation and tissue sealing, both of which contribute to haemostasis.

The invention relates to a biocompatible, flexible, haemostatic sheet comprising: a water-resistant cohesive fibrous carrier structure comprising a three-dimensional interconnected interstitial space, said fibrous carrier structure comprising fibres containing a nucleophilic polymer carrying reactive nucleophilic groups; and distributed within the interstitial space, a plurality of reactive polymer particles comprising a water-soluble electrophilic polymer carrying at least three reactive electrophilic groups that are capable of reacting with amine groups in tissue and blood, as well as with reactive nucleophilic groups of the nucleophilic polymer, under the formation of a covalent bond, said reactive polymer particles having a diameter in the range of 0.5-100 μm and being present in an amount of at least 3% by weight of the fibrous carrier structure.

When blood is absorbed by the haemostatic sheet of the present invention, the reactive polymer particles within the sheet start dissolving as soon as they are ‘wetted’ by the blood, thereby allowing the electrophilic polymer to react with both reactive nucleophilic groups in the blood and tissue and reactive nucleophilic groups in the fibrous carrier structure, thereby inducing blood coagulation and tissue sealing, both of which contribute to haemostasis.

A thermosetting resin composition at least including: [A] an epoxy resin containing two or more glycidyl groups; [B] a cyanate ester resin containing two or more cyanate groups; and [C] an amine compound; and satisfying the following conditions (1) and (2): (1) 0.25≤the number of moles of glycidyl groups in the thermosetting resin composition/the number of moles of cyanate groups in the thermosetting resin composition≤1.5; and (2) 0.05≤the number of moles of active hydrogen contained in the amino groups in the thermosetting resin composition/the number of moles of cyanate groups in the thermosetting resin composition<0.5; and a prepreg and a fiber reinforced composite material using the thermosetting resin composition. Provided are a thermosetting resin composition having excellent mechanical properties and heat resistance in a high-temperature environment after moisture absorption, and having excellent reactivity that allows curing in a short time; a prepreg prepared by impregnating a reinforced fiber with a thermosetting resin composition, which prepreg has excellent handling ability (tackiness properties) at room temperature; and a fiber reinforced composite material including a thermosetting resin composition and a reinforced fiber.

A thermosetting resin composition at least including: [A] an epoxy resin containing two or more glycidyl groups; [B] a cyanate ester resin containing two or more cyanate groups; and [C] an amine compound; and satisfying the following conditions (1) and (2): (1) 0.25≤the number of moles of glycidyl groups in the thermosetting resin composition/the number of moles of cyanate groups in the thermosetting resin composition≤1.5; and (2) 0.05≤the number of moles of active hydrogen contained in the amino groups in the thermosetting resin composition/the number of moles of cyanate groups in the thermosetting resin composition<0.5; and a prepreg and a fiber reinforced composite material using the thermosetting resin composition. Provided are a thermosetting resin composition having excellent mechanical properties and heat resistance in a high-temperature environment after moisture absorption, and having excellent reactivity that allows curing in a short time; a prepreg prepared by impregnating a reinforced fiber with a thermosetting resin composition, which prepreg has excellent handling ability (tackiness properties) at room temperature; and a fiber reinforced composite material including a thermosetting resin composition and a reinforced fiber.

The invention relates to a medical composition comprising guanidinyl-containing polymer(s) and polyanionic polymer(s). The medical composition is useful for absorbing water-containing fluids and can be used as dental retraction composition or as part of a medical treatment device.

A resin composition comprising a maleimide compound, a cyanate ester compound, a silane compound having a styrene skeleton and a hydrolyzable group or a hydroxy group, and an inorganic filler.

A resin composition comprising a maleimide compound, a cyanate ester compound, a silane compound having a styrene skeleton and a hydrolyzable group or a hydroxy group, and an inorganic filler.

A masterbatch of a liquid additive is provided, the resin composition for the masterbatch comprising (a) a block copolymer or a hydrogenated product thereof, the block copolymer containing a polymer block having a vinyl aromatic compound as a main component and a polymer block having a conjugated diene compound as a main component, and 40 to 100 parts by mass of a polyolefinic resin and 100 to 150 parts by mass of an ethylene.Math.α-olefin copolymer with respect to 100 parts by mass of the (a) component, wherein the kinematic viscosity at 100° C. is 10 to 5,000 mm.sup.2/s; the ethylene molar content is in the range of 30 to 85 mol %; and the molecular weight distribution (Mw/Mn) for the molecular weight measured by gel permeation chromatography (GPC) with reference to polystyrene is not more than 2.5.

Compositions are provided including an uncrosslinked thermoplastic nitrogen-containing matrix material and composite particles distributed in the matrix material. The composite particles each include a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are foam compositions and particles including the foam compositions, such as a sheet or multilayer construction. Composite particles are further provided. Methods of making the foam compositions are additionally described herein. Also, polishing pads, polishing systems, and methods of polishing a substrate are provided.

Compositions are provided including an uncrosslinked thermoplastic nitrogen-containing matrix material and composite particles distributed in the matrix material. The composite particles each include a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are foam compositions and particles including the foam compositions, such as a sheet or multilayer construction. Composite particles are further provided. Methods of making the foam compositions are additionally described herein. Also, polishing pads, polishing systems, and methods of polishing a substrate are provided.