Global Patent Index - EP 1077801 A1

EP 1077801 A1 2001-02-28 - METHOD AND APPARATUS FOR MIXING

Title (en)

METHOD AND APPARATUS FOR MIXING

Title (de)

VERFAHREN UND VORRICHTUNG ZUM MISCHEN

Title (fr)

PROCEDE ET APPAREIL DE MELANGE

Publication

EP 1077801 A1 (EN)

Application

EP 99910494 A

Priority

  • GB 9900768 W
  • GB 9805609 A

Abstract (en)

[origin: WO9947337A1] There is disclosed a method for mixing flowable polymer material with particulate additive, comprising the steps of: a) making a pre-blend of the polymeric material and additive which pre-blend may be inhomogeneous and contain agglomerates; b) compacting and feeding a pre-blend into a first mixing arrangement to form an intermediate blend; c) feeding the intermediate blend into a second mixing arrangement to form a final blend; d) outputting the final blend; at least steps b), c) and d) of the method being carried out as a continuous process.

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

B29C 47/50

IPC 8 full level (invention and additional information)

B29B 7/88 (2006.01); B29C 47/50 (2006.01)

CPC (invention and additional information)

B29C 47/50 (2013.01); B29C 47/0021 (2013.01); B29K 2021/00 (2013.01)

Citation (search report)

See references of WO 9947337A1

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 9947337 A1 19990923; AU 2943399 A 19991011; EP 1077801 A1 20010228; GB 9805609 D0 19980513; JP 2002506752 A 20020305

INPADOC legal status


2004-04-07 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20031001

2003-05-28 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030409

2001-02-28 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001110

2001-02-28 [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