Abstract: A mouth guard which is excellent in impact absorbability and durability, is thin and has good fittability, and is able to easily chew thereupon, and does not give vomiting feel; and a sheet for mouth guard which is suitable for producing the mouth guard.

Abstract: A laminate comprising at least a surface layer (I) and an adjacent layer (II) thereto, characterized in that the surface layer (I) comprises a cross-linked copolymer formed by cross-linking a copolymer prepared by using as monomers at least one vinyl aromatic compound and at least one conjugated diene compound, and the adjacent layer (II) comprises a hydrogenated copolymer formed by hydrogenating a copolymer prepared by using as monomers at least one vinyl aromatic compound and at least one conjugated diene compound; a multilayer tube comprising the laminate; and a medical device comprising the laminate, and/or the multilayer tube.

Abstract: A multi-layered tube composed of at least two layers, each formed from a different resin, e.g. resin (I) or resin (II). Resin (I) contains 5 to 40 mass % of a polypropylene resin and 95 to 60 mass % of at least one hydrogenated copolymer. Resin (II) contains 45 to 100 mass % of a polypropylene resin and 55 to 0 mass % of a hydrogenated copolymer. The multi-layered tubes may be used in the field of medicine and provide tubing which is excellent in transparency, flexibility and anti-kinking properties, and which is durable during sterilization procedures with high-pressure steam. The multilayer tubing may also be safely disposed of as it generates no toxic gases, such as dioxin, when incinerated. The multilayered tubing has excellent connectability and may be bonded to other tubing using hot solvent bonding or solvent adhesion. The multilayered tubing which is free from generation of any toxic gas when incinerated, and which is excellent in hot solvent bonding or solvent adhesion to other tube.

Abstract: A laminate comprising at least a surface layer (I) and an adjacent layer (II) thereto, characterized in that the surface layer (I) comprises a cross-linked copolymer formed by cross-linking a copolymer prepared by using as monomers at least one vinyl aromatic compound and at least one conjugated diene compound, and the adjacent layer (II) comprises a hydrogenated copolymer formed by hydrogenating a copolymer prepared by using as monomers at least one vinyl aromatic compound and at least one conjugated diene compound; a multilayer tube comprising the laminate; and a medical device comprising the laminate, and/or the multilayer tube.

Abstract: A mouth guard which is excellent in impact absorbability and durability, is thin and has good fittability, and is able to easily chew thereupon, and does not give vomiting feel; and a sheet for mouth guard which is suitable for producing the mouth guard.

Abstract: A balloon catheter and its pilot balloon system visually indicate the state of the inflation of a balloon placed in a human body. The small pilot balloon is conveniently manufactured by blow molding utilizing substantially the same material and has substantially the same structure as the main balloon. The pilot balloon is useful for a catheter with balloon or a tube with cuff where the balloon or the cuff is made of a very resilient material. The preferred material is a blend of composition having certain properties comprising styrenic thermoplastic elastomer and polyolefin.

Abstract: A balloon catheter and its pilot balloon system visually indicate the state of the inflation of a balloon placed in a human body. The small pilot balloon is conveniently manufactured by blow molding utilizing substantially the same material and has substantially the same structure as the main balloon. The pilot balloon is useful for a catheter with balloon or a tube with cuff where the balloon or the cuff is made of a very resilient material. The preferred material is a blend of composition having certain properties comprising styrenic thermoplastic elastomer and polyolefin.

Abstract: An endotracheal tube comprising a tube obtained by subjecting a resin composition comprising a styrenic elastomer and a polyolefin to extrusion-molding, wherein the tube has a storage modulus (MD) of 5.0×107 to 8.0×108 dyne/cm2 in the extrusion direction of at 25° C., and has a ratio of the storage modulus (MD) in the extrusion direction to a storage modulus (TD) in the circumferential direction (MD/TD) of not more than 1.3 at 25° C. The endotracheal tube can be suitably used for an orally inserted endotracheal tube, a nasally inserted endotracheal tube, and a tube for tracheostomy to be inserted into the trachea from a tracheostoma. A cuff having a storage modulus of not more than 5.0×108 dyne/cm at 25° C., obtained by subjecting a resin composition comprising a styrenic elastomer and a polyolefin to blow-molding, wherein the resin composition has a melt tension of not less than 1 g at 230° C. The cuff can be used in the endotracheal tube.

Abstract: A polymer blend comprising:(A) an acrylic resin;(B) a block copolymer consisting essentially of a polymer block of a polymerized aromatic vinyl compound and/or a polymer block of a polymerized methacrylate monoester and a polyolefin polymer block; and(C) a polymer miscible with the acrylic resin (A) and immiscible with the block copolymer (B),wherein the absolute value (.vertline..eta..sub.AC -.eta..sub.B .vertline.) of the difference between the refractive index (.eta..sub.AC) of the blend of the acrylic resin (A) and the polymer (C) and the refractive index (.eta..sub.B) of the block copolymer (B) is 0.01 or less. This polymer block has excellent transparency, softness and other properties.