Thermoplastic elastomer compositions

A molding with rigid and flexible regions, obtained by a process for producing moldings with rigid and flexible regions, which comprises using a thermoplastic elastomer composition comprising

• a) from 5 to 99% by weight of a block copolymer which is composed of hard blocks S made from vinyl aromatic monomers and of one or more random soft blocks B/S composed of from 25 to 70% by weight of dienes and 30 to 75% by weight of vinylaromatic monomers,
• b) from 1 to 95% by weight of a plasticizer with a higher polarity than white oil and with a lower polarity than diisooctyl phthalate, and which contains an ester group, amide group, or ether group, and which contains an aliphatic radical having from 12 to 18 carbon atoms, or comprises a mixture of these with paraffinic or naphthenic oils,
• c) from 0 to 50% by weight of a polyolefin, and
• d) from 0 to 60% by weight of additives,
• where the total of a) to d) is 100% by weight as flexible component and an impact-modified or unmodified styrene homo- or copolymer, a polyester, or polycarbonate, as rigid component, in two-component injection molding.

An elastic or flexible molding, obtained by a process for preparing elastic and flexible moldings, which comprises using a thermoplastic elastomer composition comprising

• a) from 5 to 99% by weight of a block copolymer which is composed of hard blocks S made from vinyl aromatic monomers and of one or more random soft blocks B/S composed of from 25 to 70% by weight of dienes and 30 to 75% by weight of vinylaromatic monomers,
• b) from 1 to 95% by weight of a plasticizer with a higher polarity than white oil and with a lower polarity than diisooctyl phthalate, and which contains an ester group, amide group, or ether group, and which contains an aliphatic radical having from 12 to 18 carbon atoms, or comprises a mixture of these with paraffinic or naphthenic oils,
• c) from 0 to 50% by weight of a polyolefin, and
• d) from 0 to 60% by weight of additives,
• where the total of a) to d) is 100% by weight.