METHOD FOR PREPARING THERMOPLASTIC ELASTANE.
Abstract
Abstract Thermoplastic elastomers with good mechanical properties are prepared by mixing a rubbery ethylen polymer and a crystalline polyolefin. The rubbery ethylene copolymer is converted to this end with an unsaturated carboxylic acid so that the gel content in benzene is in excess of 50% by weight. At these gel contents good mechanical properties and a good processability are obtained, provided that a limited, preferably deficient, amount of crystalline polyolefin is present. The mixtures are particularly suitable for applications in which high demands are made on mechanical properties at both high and low temperatures, for instance in the automotive industry.
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