Method of forming stabilized porous pipe

Details Method of forming stabilized porous pipe Method of forming stabilized porous pipe

1995-07-14

1998-07-07

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

264 459, 264178R, 2642097, 425380, B29C 4788

Patent

active

057763879

ABSTRACT:
Porous pipe formed by extruding a mixture of particles of vulcanized rubber dispersed in a binder resin such as linear low density polyethylene preferably having a Melt Index below 1.0 and a broad distribution of molecular weights, through a pipe die to form porous pipe and then cooling the pipe in a cooling trough. The pipe is stabilized to reduce degradation by ultraviolet light by dispersing in the binder resin an effective amount of an ultraviolet stabilizer such as 0.1 to 10% by weight of carbon black.

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