Abstract: A process belt for papermaking with a long operational life including an integrated structure of a reinforcing fibrous base material and a polyurethane layer is disclosed. The reinforcing fibrous base material is embedded in the polyurethane and the outer peripheral surface and the inner peripheral surface are made of the polyurethane. Nanoparticles including, as a main component, a silicon oxide component, the surface of which is treated with an organic silane coupling agent, are homogeneously dispersed in one part or all of the polyurethane.

Abstract: A shoe press belt for paper-making machine that reduces belt damages attributed to the friction between belt and shoe. The shoe press belt for paper-making machine having a wet paper contact surface and a shoe contact surface, is characterized in that the shoe press belt for paper-making machine has a base member and at least a polymer elastic part constituting the shoe contact surface and that the shoe contact surface of the polymer elastic part has a surface roughness (Ra) of 1.0 to 3.5 ?m.

Abstract: A process belt for papermaking with a long operational life comprises an integrated structure of a reinforcing fibrous base material 6 and a polyurethane layer, the reinforcing fibrous base material being embedded in the polyurethane, wherein an inorganic filler selected from calcined kaolin clay, fused silica and zeolite is homogeneously dispersed in the polyurethane.

Abstract: A process belt for papermaking with a long operational life comprises an integrated structure of a reinforcing fibrous base material 6 and a polyurethane layer. The reinforcing fibrous base material is embedded in the polyurethane and the outer peripheral surface 21 and the inner peripheral surface 22 are made of the polyurethane. Nanoparticles comprising, as main component, a silicon oxide component, the surface of which is treated with an organic silane coupling agent, are homogeneously dispersed in one part or all of the polyurethane.

Abstract: A process belt for papermaking with a long operational life comprises an integrated structure of a reinforcing fibrous base material 6 and a polyurethane layer, the reinforcing fibrous base material being embedded in the polyurethane, wherein an inorganic filler selected from calcined kaolin clay, fused silica and zeolite is homogeneously dispersed in the polyurethane.

Abstract: A belt for papermaking shoe press is provided which comprises a reinforcing fibrous base (6) and a polyurethane layer (2) united therewith, the reinforcing fibrous base (6) having been embedded in the polyurethane layer (2). The belt includes a polyurethane layer obtained by curing a mixture comprising: a urethane prepolymer obtained by reacting a polyisocyanate compound selected among p-phenylene-diisocyanate, 4,4?-methylene-bis(phenyl isocyanate), and tolylene-diisocyanate with a polyol compound selected among polypropylene glycol, polytetramethylene glycol, and a polycarbonate diol; a hardener selected among an aliphatic diol compound, hydroquinone-bis-?-hydroxyethyl ether, and organic polyamine compound; and an aliphatic triol compound. Due to this layer, the shoe press belt for papermaking is excellent in wearing resistance and flexing fatigue resistance.

Abstract: Disclosed is a shoe press belt (10) which comprises a reinforcing fibrous base material (6) embedded in a polyurethane layer, and has an outer circumference layer (2a, 21) and an inner circumference layer (2b, 22) each formed with a polyurethane. The polyurethane layer comprises a polyurethane which is produced by curing a composition comprising a mixture of an urethane prepolymer (A) and a curing agent (B). The urethane prepolymer (A) is produced by reacting an isocyanate compound (a) containing 55 to 100 mol % of a p-phenylene-diisocyanate compound with polytetramethylene glycol (b) and has an isocyanate group at its terminal. The curing agent (B) is selected from the group consisting of 1,4-butanediol, hydroquinone bis-?hydroxylethyl ether, 3,5-diethyltoluenediamine and 3,5-dimethylthiotoluenediamine. The belt (10) has excellent cracking resistance, bending fatigue resistance and wear resistance.

Abstract: A shoe press belt for a paper machine includes a substrate and a polyurethane resin impregnated to laminate on the surfaces of both the shoe side and the felt side thereof, and is excellent in abrasion resistance, crack resistance and processability. A polyurethane resin is produced by using a combination of two kinds of diisocyanates, that is, tolylene diisocyanate (TDI) and diphenylmethane diisocyanate (MDI) as starting materials.

Abstract: Disclosed is a shoe press belt (10) which comprises a reinforcing fibrous base material (6) embedded in a polyurethane layer, and has an outer circumference layer (2a) and an inner circumference layer (2b) each formed with a polyurethane. The polyurethane layer constituting the outer circumference layer (2a) comprises a polyurethane which is cured by the reaction of an urethane prepolymer (A) with a curing agent mixture (B). The urethane prepolymer (A) is produced by reacting an isocyanate compound selected from p-phenylene-diisocyanate and 4,4?-methylenebis(phenylisocyanate) with a polytetramethylene glycol and has an isocyanate group at its terminal. The curing agent mixture (B) comprises 1,4-butanediol and an aromatic polyamine having an active hydrogen group (H). The shoe press belt has excellent wear resistance, cracking resistance and bending fatigue resistance.

Abstract: A belt for papermaking shoe press is provided which comprises a reinforcing fibrous base (6) and a polyurethane layer (2) united therewith, the reinforcing fibrous base (6) having been embedded in the polyurethane layer (2). The belt includes a polyurethane layer obtained by curing a mixture comprising: a urethane prepolymer obtained by reacting a polyisocyanate compound selected among p-phenylene-diisocyanate, 4,4?-methylene-bis(phenyl isocyanate), and tolylene-diisocyanate with a polyol compound selected among polypropylene glycol, polytetramethylene glycol, and a polycarbonate diol; a hardener selected among an aliphatic diol compound, hydroquinone-bis-?-hydroxyethyl ether, and organic polyamine compound; and an aliphatic triol compound. Due to this layer, the shoe press belt for papermaking is excellent in wearing resistance and flexing fatigue resistance.

Abstract: A shoe press belt for paper-making machine that reduces belt damages attributed to the friction between belt and shoe. The shoe press belt for paper-making machine having a wet paper contact surface and a shoe contact surface, is characterized in that the shoe press belt for paper-making machine has a base member and at least a polymer elastic part constituting the shoe contact surface and that the shoe contact surface of the polymer elastic part has a surface roughness (Ra) of 1.0 to 3.5 ?m.

Abstract: Disclosed is a shoe press belt (10) which comprises a reinforcing fibrous base material (6) embedded in a polyurethane layer, and has an outer circumference layer (2a, 21) and an inner circumference layer (2b, 22) each formed with a polyurethane. The polyurethane layer comprises a polyurethane which is produced by curing a composition comprising a mixture of an urethane prepolymer (A) and a curing agent (B). The urethane prepolymer (A) is produced by reacting an isocyanate compound (a) containing 55 to 100 mol % of a p-phenylene-diisocyanate compound with polytetramethylene glycol (b) and has an isocyanate group at its terminal. The curing agent (B) is selected from the group consisting of 1,4-butanediol, hydroquinone bis-?hydroxylethyl ether, 3,5-diethyltoluenediamine and 3,5-dimethylthiotoluenediamine. The belt (10) has excellent cracking resistance, bending fatigue resistance and wear resistance.

Abstract: Disclosed is a shoe press belt (10) which comprises a reinforcing fibrous base material (6) embedded in a polyurethane layer, and has an outer circumference layer (2a) and an inner circumference layer (2b) each formed with a polyurethane. The polyurethane layer constituting the outer circumference layer (2a) comprises a polyurethane which is cured by the reaction of an urethane prepolymer (A) with a curing agent mixture (B). The urethane prepolymer (A) is produced by reacting an isocyanate compound selected from p-phenylene-diisocyanate and 4,4?-methylenebis(phenylisocyanate) with a polytetramethylene glycol and has an isocyanate group at its terminal. The curing agent mixture (B) comprises 1,4-butanediol and an aromatic polyamine having an active hydrogen group (H). The shoe press belt has excellent wear resistance, cracking resistance and bending fatigue resistance.

Abstract: A belt (10) for shoe press comprising a shoe side layer (20), a substrate (30) formed on the our circumference of the shoe side layer (20), and a wet paper side layer (60) formed on the outer circumference of the substrate (30). The substrate (30) consists of a lattice-like material (40) formed by bonding the intersection of a warp (40A) and a weft (40B), and a thread winding layer (50) formed by winding a thread (50A) spirally. Bonding at the intersection of the warp (40A) and the weft (40B) is separated easily and friction takes place between them, but since the warp (40A) is made to wear earlier than the weft (40B), the weft (40B) does not wear in the early stage as compared with prior art. Consequently, strength and dimensional stability of the belt for shoe press are enhanced.

Abstract: The present invention relates to a shoe press belt for a paper machine, comprising a substrate and a polyurethane resin impregnated to laminate on the surfaces of both the shoe side and the felt side thereof, which is excellent in abrasion resistance, crack resistance and processability. In the present invention, a polyurethane resin is produced by using a combination of two kinds of diisocyanates, that is, tolylene diisocyanate (TDI) and diphenylmethane diisocyanate (MDI) as starting materials.

Abstract: A shoe press belt comprises a shoe side layer, a base body on the external circumference of the shoe side layer, and a wet paper web side layer formed on the external surface of the base body. The shoe side layer is formed on mandrel having a polished surface, and the base body comprises a lattice material made by joining crossing points of warp and weft yarns, and a wound layer made by winding a thread in a helix. The lattice material, made by joining the crossing points of the warp and weft yarns as a component of the base body, has smaller undulations than those of a woven material.

Abstract: A vehicle body covering cover includes a main body made of a resin, a graphic layer which is formed on a surface side of the main body and in which a predetermined graphic is drawn and a clear layer for covering a surface of the graphic layer. The graphic layer and the clear layer are integrally molded with the main body.

Abstract: A papermaking machine belt has a polyurethane and a substrate. The polyurethane is obtained by curing a mixture of an urethane prepolymer, a curing agent, and a non-reactive liquid poly(dimethyl siloxane) in which an amount ratio thereof with respect to a sum of the amount of the urethane prepolymer and the curing agent is from 0.5 to 25% by weight.

Abstract: A shoe press belt comprises a shoe side layer, a base body on the external circumference of the shoe side layer, and a wet paper web side layer formed on the external surface of the base body. The shoe side layer is formed on mandrel having a polished surface, and the base body comprises a lattice material made by joining crossing points of warp and weft yarns, and a wound layer made by winding a thread in a helix. The lattice material, made by joining the crossing points of the warp and weft yarns as a component of the base body, has smaller undulations than those of a woven material.

Abstract: The object of the present invention is to reducing the time, cost, and danger for manufacturing polyurethane for a belt for a papermaking machine at a high temperature. A belt for a papermaking machine according to the present invention comprises a base body and polyurethane and said polyurethane comprises an isocyanate-terminated urethane prepolymer and a hardener containing a dimethylthiotoluenediamine. The equivalent ratio of an active hydrogen group of said hardener and an isocyanate group of said urethane prepolymer in said polyurethane is in the range of 0.9 to 1.10 so that a belt for a papermaking machine having well-balanced crack resistance, abrasion resistance, and permanent set resistance may be obtained.