Global Patent Index - EP 1068059 A1

EP 1068059 A1 2001-01-17 - APPARATUS FOR MANUFACTURING THERMOPLASTIC RESIN FOAM PELLETS

Title (en)

APPARATUS FOR MANUFACTURING THERMOPLASTIC RESIN FOAM PELLETS

Title (de)

GERÄT ZUM HERSTELLEN VON PELLETS AUS THERMOPLASTISCHEM HARZSCHAUM

Title (fr)

APPAREIL DESTINE A LA FABRICATION DE GRANULES EN MOUSSE DE RESINE THERMOPLASTIQUE

Publication

EP 1068059 A1 (EN)

Application

EP 00902184 A

Priority

  • KR 0000066 W
  • KR 19990002710 A
  • KR 19990027531 A

Abstract (en)

[origin: WO0044542A1] An apparatus for manufacturing thermoplastic resin foam pellets is disclosed. This apparatus continuously produces desired thermoplastic resin foam pellets from a high viscosity thermoplastic resin in commercial quantity. The apparatus includes a hollow cylindrical die (11) having a plurality of radial extrusion ports (23) at its outlet end portion. A torpedo (17) is axially set within the die (11) to form a resin passage within the die. In an embodiment, the cutting means consists of motor-driven steel wires (30) spirally extending along the rounded external surface of the die (11) at a position around the radial extrusion ports (23) while coming into close contact with the rounded external surface of the die. In another embodiment, the cutting means consists of motor-driven movable rods (5) axially arranged inside the die (1) to be axially reciprocable along the die, with a plurality of pairs of holes (6a, 6b) being formed on each of the movable rods (5) so that they each alternately communicate with one of two neighboring radial extrusion ports (4) in accordance with an axial reciprocating action of each movable rod (5).

IPC 1-7 (main, further and additional classification)

B29B 9/06

IPC 8 full level (invention and additional information)

B29B 9/06 (2006.01); B29K 101/12 (2006.01); B29K 105/04 (2006.01)

CPC (invention and additional information)

B29B 9/06 (2013.01)

Citation (search report)

See references of WO 0044542A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0044542 A1 20000803; AU 2330300 A 20000818; AU 736666 B2 20010802; CA 2326145 A1 20000803; CN 1293609 A 20010502; EP 1068059 A1 20010117; JP 2002535175 A 20021022

INPADOC legal status


2003-01-02 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20020702

2002-01-02 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20011112

2001-01-17 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001016

2001-01-17 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE