Patent ID: 9404005
Filing Date: 2016-08-02
CPC Classification: C08L,C09D,H01B

Claim Text:
1. A process comprising: heating a polymeric composition consisting of (i) a low density polyethylene having a melting temperature of at least 105° C. to 125° C. (LDPE) (ii) a minority amount of a high density polyethylene having a melting temperature of at least 130° C. to 134° C. (HDPE), and (iii) optional antioxidant, to at least the melting temperature of the HDPE; control-cooling the heated polymeric composition at a cooling rate from 0.1° C./min to 10° C./min; and forming a polymeric composition having a space-filling array of HDPE lamellae, which are separated by the LDPE, the polymeric composition having an AC breakdown strength greater than 170 kV/mm as measured on 85 micrometer thin films in accordance with ASTM D 149.