Global Patent Index - EP 1097034 A1

EP 1097034 A1 2001-05-09 - METHOD AND DEVICE FOR FOAMING PLASTICS

Title (en)

METHOD AND DEVICE FOR FOAMING PLASTICS

Title (de)

VERFAHREN UND VORRICHTUNG ZUM SCHÄUMEN VON KUNSTSTOFFEN

Title (fr)

PROCEDE ET DISPOSITIF POUR MOUSSER DES MATIERES PLASTIQUES

Publication

EP 1097034 A1 (DE)

Application

EP 99911684 A

Priority

  • DE 19808266 A
  • EP 9901071 W

Abstract (en)

[origin: DE19808266A1] The invention relates to a method for foaming plastics by using carbon dioxide as a foaming agent. According to the inventive method, liquid or supercritical carbon dioxide is placed under an increased pressure and fed to the plastic in order to foam the plastic. The invention also relates to a device for foaming plastic by using carbon dioxide as a foaming agent where a source for liquid or supercritical carbon dioxide is connected to at least one device provided for increasing the pressure of the carbon dioxide.

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

B29C 44/34

IPC 8 full level (invention and additional information)

B29C 44/34 (2006.01)

CPC (invention and additional information)

B29C 44/3446 (2013.01)

Citation (search report)

See references of WO 9943483A1

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

DE 19808266 A1 19990909; AR 017467 A1 20010905; EP 1097034 A1 20010509; WO 9943483 A1 19990902; ZA 9901543 B 19990825

INPADOC legal status


2006-07-19 [18R] REFUSED

- Effective date: 20060302

2001-05-09 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001213

2001-05-09 [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