Method and apparatus for forming an extrusion

Details Method and apparatus for forming an extrusion Method and apparatus for forming an extrusion

2002-04-05

2008-09-09

Theisen, Mary Lynn F (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

C264S173110, C264S173160, C264S173170

Reexamination Certificate

active

07422711

ABSTRACT:
A method of forming an extrusion comprises passing a first, plastics material (12) through a first channel (104) in a die, passing a second, plastics material (14) through a second channel (112) in the die, and passing a third, plastics material (16) through a third channel (314) in the die. At least one of the materials is passed through a metering gap into contact with the other materials to cause the at least one material to bond with the other materials as the materials pass through the die.

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International Search Report for International Application No. PCT/GB02/01635, dated Jul. 19, 2002 (previously submitted on Oct. 2, 2003).

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