Title:
架橋ポリオレフィン発泡体の可塑化方法
Document Type and Number:
Japanese Patent JP4252709
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a technique for plasticizing a crosslinked polyolefin foam to such an extent that it can be reused by eliminating the adverse effect of a foaming agent remaining in the foam or removing a smell originating from the foam during its extrusion. SOLUTION: This method is to plasticize the crosslinked polyolefin foam obtained by a foaming process using a pyrolitic foaming agent, at a temperature of 300 deg.C or higher of a kneading zone and a shear rate of 400/s or more in the kneading zone with the help of a same-direction rotating biaxial extruder of a screw structure which has a pressure retaining zone for damming or sending back a kneaded product at the end part on the extrusion head side of a single kneading zone.
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Inventors:
Shigeru Tokuda
Application Number:
JP2000172553A
Publication Date:
April 08, 2009
Filing Date:
June 08, 2000
Export Citation:
Assignee:
THE FURUKAW ELECTRIC CO.,LTD.
International Classes:
B29C48/40; B29K23/00; B29K105/04; B29K105/24
Domestic Patent References:
| JP1036600A | ||||
| JP11189670A | ||||
| JP2001131331A |