HARD POLYVINYL CHLORIDE EXTRUSION COMPOSITION AND PRODUCT THEREFROM

摘要

1. Extrusion composition comprising rigid polyvinyl chloride, and further comprising at least one thermal stabilizing agent, a lubricating agent and mineral charges, characterized in that, for 100 parts of polymer, it contains : - between 0.1 and 0.5 part of a mixture of thermal stabilizers, essentially comprising a tin salt and an alkaline-earth salt, - between 1.2 and 4 parts of a mixture of lubricants comprising a paraffin wax and a polyolefin wax, - and from 0.1 to 50 parts of mineral charges.