Global Patent Index - EP 0938407 A1

EP 0938407 A1 19990901 - MICROWAVE PROCESSING SYSTEM FOR POLYMERS

Title (en)

MICROWAVE PROCESSING SYSTEM FOR POLYMERS

Title (de)

MIRKOWELLENBEHANDLUNGSSYSTEM FÜR POLYMERE

Title (fr)

SYSTEME DE TRAITEMENT DE POLYMERES AUX MICRO-ONDES

Publication

EP 0938407 A1 19990901 (EN)

Application

EP 97945323 A 19970926

Priority

  • US 9717399 W 19970926
  • US 2707296 P 19960930

Abstract (en)

[origin: WO9814314A1] Polymer processing systems and methods which use microwave energy to achieve extremely rapid, efficient melting and/or softening of polymer materials. After rapid melting and/or softening is achieved, the molten polymer may then be pressurized for transport to an injection mold, an extrusion die, or the like, as desired. Microwave melting occurs so rapidly, that significant reductions in cycle time would be achieved by the present invention. Additionally, the use of microwave energy for melting is economically advantageous, because microwave energy sources are generally less costly and use energy more efficiently than conventional melting systems.

IPC 1-7

B29B 13/08; B29C 31/06; B29C 35/08

IPC 8 full level

B29B 13/02 (2006.01); B29B 13/08 (2006.01); B29C 45/18 (2006.01); B29C 45/46 (2006.01); B29C 45/72 (2006.01); B29C 31/06 (2006.01); B29C 35/08 (2006.01)

CPC (source: EP KR)

B29B 13/022 (2013.01 - EP); B29B 13/08 (2013.01 - EP KR); B29C 45/18 (2013.01 - EP); B29C 45/72 (2013.01 - EP); B29C 31/06 (2013.01 - EP); B29C 2035/0855 (2013.01 - EP)

Citation (search report)

See references of WO 9814314A1

Designated contracting state (EPC)

AT DE FR GB IT

DOCDB simple family (publication)

WO 9814314 A1 19980409; AU 4655297 A 19980424; CA 2266616 A1 19980409; EP 0938407 A1 19990901; JP 2001501553 A 20010206; KR 20000048778 A 20000725

DOCDB simple family (application)

US 9717399 W 19970926; AU 4655297 A 19970926; CA 2266616 A 19970926; EP 97945323 A 19970926; JP 51670898 A 19970926; KR 19997002766 A 19990330