METHOD OF MANUFACTURING OLEFIN RESIN PARTICLES AND PRE-EXPANDED PARTICLES

Title:

METHOD OF MANUFACTURING OLEFIN RESIN PARTICLES AND PRE-EXPANDED PARTICLES

Document Type and Number:

WIPO Patent Application WO/1996/009150

Kind Code:

A1

Abstract:

A method of manufacturing olefin resin particles, comprising the steps of extruding by using a homodirectional biaxal kneading extruder a resin from a die nozzle having a discharge rate per hole of 0.5-8 kg/hr and a diameter of less than 2 mm into warm water of 5-90 �C which is lower than the temperature of the resin by 140-220 �C, and then cutting the extruded product with a cutter blade in the warm water. The mixed materials are dispersed uniformly, and the changing of a raw resin is carried out speedily and economically, resin particles of a desired shape being obtained.

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Inventors:

SHIMAZU HISAO (JP)
SENDA KENICHI (JP)
SAKAGUCHI HIROFUMI (JP)
SMETS RONALDS A (BE)
VAN RAVESTYN PIERRE (BE)

Application Number:

PCT/JP1995/001865

Publication Date:

March 28, 1996

Filing Date:

September 19, 1995

Export Citation:

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Assignee:

KANEGAFUCHI CHEMICAL IND (JP)
KANEKA BELGIUM NV (BE)
SHIMAZU HISAO (JP)
SENDA KENICHI (JP)
SAKAGUCHI HIROFUMI (JP)
SMETS RONALDS A (BE)
RAVESTYN PIERRE VAN (BE)

International Classes:

C08J9/16; B29B9/06; B29B9/12; B29C44/34; B29C48/00; B29C48/04; B29K23/00; (IPC1-7): B29B9/06; C08J3/12

Foreign References:

JPH01110911A	1989-04-27
JPS59221340A	1984-12-12
JPS61195808A	1986-08-30
JPH01234212A	1989-09-19
JPS5321897B2	1978-07-05
JPH0376721A	1991-04-02
JPH0386504A	1991-04-11

Other References: