| 摘要 |
<p>The present invention consists of the use, in a chlorinated and filled thermoplastic composition containing at least one chlorinated thermoplastic resin and at least one mineral filler, as an agent that improves the thermal stability and the UV resistance of said composition, of a linear amphiphilic copolymer characterized in that: it consists of at least one hydrophilic monomer and of at least one hydrophobic monomer, it has a weight-average molecular weight between 5000 g/mol and 20 000 g/mol and a polydispersity index of less than or equal to 3, and preferably a weight-average molecular weight between 10 000 g/mol and 15 000 g/mol and a polydispersity index of less than or equal to 2.5. It also relates to a process for manufacturing a chlorinated and filled thermoplastic composition using said copolymer, and also to the composition obtained directly by said process.</p> |
