Global Patent Index - EP 0977783 A1

EP 0977783 A1 2000-02-09 - METHOD FOR PRODUCING HOMOPOLYMERIZATES AND COPOLYMERIZATES

Title (en)

METHOD FOR PRODUCING HOMOPOLYMERIZATES AND COPOLYMERIZATES

Title (de)

VERFAHREN ZUR HERSTELLUNG VON PARTIKELFÖRMIGEN HOMO- UND COPOLYMERISATEN AUS MIKROSUSPENSIONEN IN EINEM ROHRREAKTOR

Title (fr)

PRODUCTION D'HOMOPOLYMERISATS ET DE COPOLYMERISATS PARTICULAIRES A PARTIR D'UNE MICROSUSPENSION DANS UN REACTEUR TUBULAIRE

Publication

EP 0977783 A1 (DE)

Application

EP 98925480 A

Priority

  • DE 19717877 A
  • EP 9802429 W

Abstract (en)

[origin: DE19717877A1] The method used to polymerize a microsuspension enables continuous production of particular homopolymerizates and copolymerizates from at least one polymerizable monomer. The polymerization of the microsuspension, to which addition agents can be added depending on the desired application, is carried out in a tubular reactor at a temperature of at least 0 DEG C C in the presence of a hydrophobic radical polymerization initiator, resulting in particular homopolymerizates and copolymerizates of an average diameter d50 of at least 50 mu m. The polymerizates obtained by this method find applications as addition agents for thermoplastic moulding compounds, as copier toner components, as auxiliary agents for paper and leather, as coating agents for magnetic tapes and foils and as colour and paint components.

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

C08F 2/16; B01J 19/24

IPC 8 full level (invention and additional information)

B01J 14/00 (2006.01); C08F 2/00 (2006.01); C08F 2/01 (2006.01); C08F 2/16 (2006.01); C08F 2/18 (2006.01); C08F 12/08 (2006.01); C08F 20/12 (2006.01); C08F 20/44 (2006.01); C08F 291/00 (2006.01)

CPC (invention and additional information)

C08F 20/44 (2013.01); C08F 2/18 (2013.01); C08F 12/08 (2013.01); C08F 20/12 (2013.01); C08F 291/00 (2013.01)

Combination set (CPC)

  1. C08F 12/08 + C08F 2/18
  2. C08F 20/12 + C08F 2/18
  3. C08F 20/44 + C08F 2/18
  4. C08F 291/00 + C08F 2/18

Citation (search report)

See references of WO 9849204A1

Designated contracting state (EPC)

BE DE ES FR GB IT NL

EPO simple patent family

DE 19717877 A1 19981029; CN 1253568 A 20000517; EP 0977783 A1 20000209; JP 2001522394 A 20011113; KR 20010012124 A 20010215; WO 9849204 A1 19981105

INPADOC legal status


2001-12-19 [18W] WITHDRAWN

- Date of withdrawal: 20011023

2001-09-26 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010807

2000-02-09 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991115

2000-02-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE DE ES FR GB IT NL