Thermoplastic polymer blends of ethylene-propylene (EP) copolymer with polyethylene

摘要

Polymer blends of (1) high molecular weight ethylene-propylene (EP) copolymers having a high methylene run index with (2) low density polyethylenes are prepared by physically mixing the polymer components under conditions of heat and shear. The resultant blends are thermoplastic in nature and readily moldable and remoldable. The blends exhibit exceptionally high tensile strength without the use of curing or crosslinking agents. Products made from the polymer blends include liners and molded products such as tubing, toys, and household and automotive items.