Global Patent Index - EP 1082382 A1

EP 1082382 A1 2001-03-14 - METHOD FOR PRODUCING WATER EXPANDABLE STYRENE POLYMERS

Title (en)

METHOD FOR PRODUCING WATER EXPANDABLE STYRENE POLYMERS

Title (de)

VERFAHREN ZUR HERSTELLUNG WASSEREXPANDIERBARER STYROLPOLYMERISATE

Title (fr)

PROCEDE DE FABRICATION DE POLYMERES STYRENE EXPANSIBLES A L'AIDE D'EAU

Publication

EP 1082382 A1 (DE)

Application

EP 99910367 A

Priority

  • DE 19812856 A
  • EP 9901838 W

Abstract (en)

[origin: DE19812856A1] The invention relates to a method for producing styrene polymers containing water as only inflating agent by polymerising styrene in an aqueous suspension in the presence of between 0.1 and 15 weight % of a solid matter which is insoluble in water and styrene, for example carbon black or graphite.

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

C08J 9/20; C08J 9/00

IPC 8 full level (invention and additional information)

C08F 2/18 (2006.01); C08F 12/08 (2006.01); C08J 9/00 (2006.01); C08J 9/20 (2006.01)

CPC (invention and additional information)

C08J 9/20 (2013.01); C08F 12/08 (2013.01); C08J 9/0066 (2013.01); C08J 2325/04 (2013.01)

Combination set (CPC)

C08F 12/08 + C08F 2/44

Citation (search report)

See references of WO 9948957A1

Designated contracting state (EPC)

AT BE DE ES FR GB IT SE

EPO simple patent family

DE 19812856 A1 19990930; EP 1082382 A1 20010314; US 6387968 B1 20020514; WO 9948957 A1 19990930

INPADOC legal status


2003-05-02 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Effective date: 20030305

2001-03-14 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000811

2001-03-14 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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