vernetzbare compositions thereof and the use of commercially available thermoplastic elastomers

摘要

Carboxylate salts of tri- or tetra-valent metals are used as crosslinkers in crosslinkable compositions based on thermoplastic polymers and carboxylated elastomers. Crosslinkable compositions (CC) containing (1) thermoplastic polymer(s), (2) elastomer(s) with carboxyl groups and (3) a crosslinker system comprising one or more salts of formula (R y-) x/y M x+ (I) in which R y-a 1-26C hydrocarbon residue with y carboxyl groups; y : 1, 2, 3 or 4; x : 3 or 4; M : a tri- or tetra-valent metal . Independent claims are included for (1) a method for the production of CC by mixing all three components at a temperature above the highest melting point (m.pt.) or glass transition point (Tg) of the polymer (1) (2) a method for the production of thermoplastic elastomers by subjecting CC to a continuous mixing process under the above temperature conditions (3) thermoplastic elastomers based on (1) and (2), in which component (2) is crosslinked by a system (3) as above (4) moulded parts made from such thermoplastic elastomers .