Patent ID: 9617356
Date: 2017-04-11
CPC Classifications: C08F,C08K,C08L

Claim:
1. A crosslinked polyethylene composition wherein the composition is prepared by combining: 100 parts by weight of polyethylene, 0.05-5 parts by weight of crosslinking agent, and 0.03-3 parts by weight of crosslinking aid, wherein the polyethylene is a copolymer, homopolymer and/or a mixture thereof; the crosslinking agent is an organic peroxide having a half-life period >3 minutes at 190° C.; the crosslinking aid is diallyl terephthalate (DATP), triallyl isocyanurate (TAIC), a polymer with a vinyl content of higher than 50% selected from the group consisting of 1,2-polybutadiene and cis-1,2-polybutadiene (1,2-BR), an organic substance containing a maleimide or (meth)acrylate group, or combinations thereof; and the crosslinked polyethylene composition has a crosslinking efficiency index of >1000 Nm/g and a 6 torque value of >15 Nm at 220° C. and 40 rpm.