EP 1109655 A1 20010627 - METHOD FOR INCREASING THERMAL CONVECTION SPEED IN A THERMOFUSIBLE POLYMER
Title (en)
METHOD FOR INCREASING THERMAL CONVECTION SPEED IN A THERMOFUSIBLE POLYMER
Title (de)
VERFAHREN ZUM BESCHLEUNIGEN DES KONFEKTIVEN WÄRMETRANSFERS IN EINEM THERMOSCHMELZBAREN POLYMER
Title (fr)
PROCEDE POUR AUGMENTER LA VITESSE DE CONVECTION THERMIQUE DANS UN POLYMERE THERMOFUSIBLE
Publication
Application
Priority
- CH 9900405 W 19990901
- FR 9811212 A 19980901
Abstract (en)
[origin: FR2782665A1] The invention concerns a method for increasing thermal convection speed in a thermofusible polymer, in particular a polyethylene terephthalate, enabling to increase the speed of heat transmission by thermal convection in said polymer, by exposing it simultaneously to at least a thermal radiation source and ultrasonic vibrations. The ultrasonic vibrations are preferably applied intermittently on a surface of the polymer by means of a sonotrode supplied by an ultrasound generator, either directly, or via a liquid in contact with the polymer. Thus the physical characteristics of the polymer can be improved and the heat transmission speed can be varied depending on its form, mass and type.
IPC 1-7
IPC 8 full level
B29B 13/02 (2006.01); B29C 35/02 (2006.01); B29C 35/08 (2006.01); B29K 67/00 (2006.01); B29K 101/00 (2006.01)
CPC (source: EP)
B29B 13/023 (2013.01); B29C 35/0261 (2013.01); B29C 35/08 (2013.01); B29C 35/0805 (2013.01); B29K 2067/00 (2013.01); B29K 2067/003 (2013.01)
Citation (search report)
See references of WO 0012279A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
FR 2782665 A1 20000303; FR 2782665 B1 20001110; CA 2341600 A1 20000309; EP 1109655 A1 20010627; JP 2002523262 A 20020730; WO 0012279 A1 20000309
DOCDB simple family (application)
FR 9811212 A 19980901; CA 2341600 A 19990901; CH 9900405 W 19990901; EP 99939307 A 19990901; JP 2000567360 A 19990901