Crosslinkable compositions, thermoplastic elastomers obtainable therefrom and their use
AssigneeLANXESS Deutschland GmbH
InventorsDirk Achten, Claus Wrana, Kay Varnhorn, Stephen Pask, Carsten Fischer
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Abstract
Novel crosslinkable compositions are provided and are based on thermoplastic polymers and elastomers, these compositions comprising, as crosslinking system, specific organic salts of metal ions. Ionically crosslinked thermoplastic elastomers can be obtained therefrom and have excellent physical properties, high-temperature resistance extending above 150° C., and also oil resistance. They can be used for production of moldings.
Claims21
Crosslinkable compositions comprising
- (1) one or more thermoplastic polymers
- (2) one or more elastomers which have carboxy groups, and also
- (3) as crosslinking system, one or more salts of the general formula (I)
- (Ry−)x/yMx+ (I)
- in which
- Ry− is a C1-C26 hydrocarbon radical which has y carboxy groups,
- y can be the values 1, 2, 3 or 4,
- x is 3 or 4 and
- M is a tri- or tetravalent metal.
Thermoplastic elastomers based on one or more thermoplastics (1) and on one or more elastomers (2) containing carboxy groups, where the elastomer(s) (2) containing carboxy groups has/have been crosslinked via a crosslinking system which involves one or more salts of the general formula (I),
- (Ry−)x/yMx+ (I)
- in which
- Ry− is a C1-C26 hydrocarbon radical which has y carboxy groups,
- y can be the values 1, 2, 3 or 4,
- x is 3 or 4 and
- M is a tri- or tetravalent metal.
Dependencies are inferred from the claim text.