Provided is a PSA sheet that shows excellent adhesive strength to both high-polar and low-polar adherends with reduced dependence on fossil-resource-based materials. The PSA sheet has a PSA layer formed from a natural rubber-based PSA. At least 20% by weight of all repeat units forming the base polymer of the PSA are derived from an acrylic monomer. Biomass-derived carbons account for at least 50% of the total carbon content of the PSA layer. The PSA sheet has an adhesive strength of 18 N/20 mm or greater to a stainless steel plate (after left at 50 C. for 2 h) and an adhesive strength of 15 N/20 mm or greater to a polypropylene plate (after left at 50 C. for 2 h).

Provided is a PSA sheet that shows excellent adhesive strength to both high-polar and low-polar adherends with reduced dependence on fossil-resource-based materials. The PSA sheet has a PSA layer formed from a natural rubber-based PSA. At least 20% by weight of all repeat units forming the base polymer of the PSA are derived from an acrylic monomer. Biomass-derived carbons account for at least 50% of the total carbon content of the PSA layer. The PSA sheet has an adhesive strength of 18 N/20 mm or greater to a stainless steel plate (after left at 50 C. for 2 h) and an adhesive strength of 15 N/20 mm or greater to a polypropylene plate (after left at 50 C. for 2 h).

An adhesive sheet in which the adhesive strength of an adhesive layer to other adherends is low, adhesive layers can be firmly bonded to each other, the adhesive layers will not be destroyed even if the adhesive layers are peeled after having once been bonded, and sufficient bonding strength is obtained even if the adhesive layers are re-bonded. An adhesive sheet in which an intermediate layer containing methyl methacrylate-grafted natural rubber is provided on a substrate containing a vinyl chloride resin and a plasticizer, and an adhesive layer including an adhesive containing the plasticizer and a rubber component containing natural rubber and methyl methacrylate-grafted natural rubber is provided on the intermediate layer, wherein a degree of swelling of the rubber component with respect to the plasticizer is by a factor of 1.5 to 4.5.

An adhesive sheet in which the adhesive strength of an adhesive layer to other adherends is low, adhesive layers can be firmly bonded to each other, the adhesive layers will not be destroyed even if the adhesive layers are peeled after having once been bonded, and sufficient bonding strength is obtained even if the adhesive layers are re-bonded. An adhesive sheet in which an intermediate layer containing methyl methacrylate-grafted natural rubber is provided on a substrate containing a vinyl chloride resin and a plasticizer, and an adhesive layer including an adhesive containing the plasticizer and a rubber component containing natural rubber and methyl methacrylate-grafted natural rubber is provided on the intermediate layer, wherein a degree of swelling of the rubber component with respect to the plasticizer is by a factor of 1.5 to 4.5.

To provide a resin composition for plating and a plated molded article which are excellent in impact resistance and fluidity and which satisfy plating adhesion strength, plating deposition rate and thermal cycle resistance in a well-balanced manner.

A resin composition for plating, containing a polycarbonate resin (A), a graft copolymer (B) and a copolymer (C), wherein the resin composition satisfies the following conditions (1) to (5): (1) a content of the polycarbonate resin (A) is 20 to 60% by mass based on 100% by mass of a total of (A), (B) and (C); (2) the graft copolymer (B) is a graft copolymer obtained by graft polymerization of a rubbery polymer and a monomer component including an aromatic vinyl-based monomer; (3) the copolymer (C) is a copolymer obtained by polymerization of a monomer component including an aromatic vinyl-based monomer and a vinyl cyanide-based monomer; (4) a content of the rubbery polymer is 7 to 20% by mass relative to the resin composition; and (5) a content of an oligomer component is less than 1% by mass relative to the resin composition.

To provide a resin composition for plating and a plated molded article which are excellent in impact resistance and fluidity and which satisfy plating adhesion strength, plating deposition rate and thermal cycle resistance in a well-balanced manner.

A resin composition for plating, containing a polycarbonate resin (A), a graft copolymer (B) and a copolymer (C), wherein the resin composition satisfies the following conditions (1) to (5): (1) a content of the polycarbonate resin (A) is 20 to 60% by mass based on 100% by mass of a total of (A), (B) and (C); (2) the graft copolymer (B) is a graft copolymer obtained by graft polymerization of a rubbery polymer and a monomer component including an aromatic vinyl-based monomer; (3) the copolymer (C) is a copolymer obtained by polymerization of a monomer component including an aromatic vinyl-based monomer and a vinyl cyanide-based monomer; (4) a content of the rubbery polymer is 7 to 20% by mass relative to the resin composition; and (5) a content of an oligomer component is less than 1% by mass relative to the resin composition.

The invention relates to a compound of formula (I), wherein: A1 and A.sub.2 represent, independently of one another, a binding group comprising at least one nitrogen atom; Q.sub.1 and Q.sub.2 represent, independently of one another, a linkage group; and x is an integer between 2 and 6, preferably between 3 and 6. The invention also relates to a rubber composition comprising said compound.

The invention relates to a compound of formula (I), wherein: A1 and A.sub.2 represent, independently of one another, a binding group comprising at least one nitrogen atom; Q.sub.1 and Q.sub.2 represent, independently of one another, a linkage group; and x is an integer between 2 and 6, preferably between 3 and 6. The invention also relates to a rubber composition comprising said compound.

Provided are surface-modified rubbers or surface-modified thermoplastic elastomers, such as catheters, syringe barrels, tubes of medical instruments, and mudguard fenders, and methods for modifying the surface of rubber or a thermoplastic elastomer, wherein a lubricant layer is firmly bonded to the surface of medical devices such as catheters, syringe barrels, and tubes of medical instruments to impart lubricity to the surface and, further, improve the durability of the lubricant layer on the surface, thereby suppressing deterioration of the sliding properties. Included is a surface-modified rubber or a surface-modified thermoplastic elastomer each having a surface at least partially treated by polymerization of a monomer in the presence of a thermal polymerization initiator.

Provided are surface-modified rubbers or surface-modified thermoplastic elastomers, such as catheters, syringe barrels, tubes of medical instruments, and mudguard fenders, and methods for modifying the surface of rubber or a thermoplastic elastomer, wherein a lubricant layer is firmly bonded to the surface of medical devices such as catheters, syringe barrels, and tubes of medical instruments to impart lubricity to the surface and, further, improve the durability of the lubricant layer on the surface, thereby suppressing deterioration of the sliding properties. Included is a surface-modified rubber or a surface-modified thermoplastic elastomer each having a surface at least partially treated by polymerization of a monomer in the presence of a thermal polymerization initiator.