EP 3237175 A1 20171101 - METHOD FOR PRODUCING MULTILAYER FOAM BOARDS WITH STRUCTURED DEPRESSIONS BY MEANS OF THERMAL WELDING
Title (en)
METHOD FOR PRODUCING MULTILAYER FOAM BOARDS WITH STRUCTURED DEPRESSIONS BY MEANS OF THERMAL WELDING
Title (de)
VERFAHREN ZUR HERSTELLUNG MEHRLAGIGER SCHAUMSTOFFPLATTEN MIT STRUKTURIERTEN VERTIEFUNGEN DURCH THERMISCHES VERSCHWEISSEN
Title (fr)
PROCÉDÉ DE FABRICATION PAR SOUDURE THERMIQUE DE PLAQUES DE MOUSSE MULTICOUCHES AVEC DES ÉVIDEMENTS STRUCTURÉS
Publication
Application
Priority
- EP 14199630 A 20141222
- EP 2015080178 W 20151217
Abstract (en)
[origin: WO2016102291A1] The invention relates to a method for producing at least two-layered thermoplastic foam plates by means of thermal welding of at least two thinner thermoplastic foam plates, comprising the steps a), b), and c). In step a), structured recesses are introduced into at least one contact surface of at least one of the thinner thermoplastic foam plates. In step b), at least one thinner thermoplastic foam plate is heated on the contact surface thereof, which has the structured recesses. In step c), the contact surfaces of the at least two thinner thermoplastic foam plates are brought into contact, forming a weld seal. According to the invention, step c) is carried out no later than 2 seconds after completing step b).
IPC 8 full level
B29C 65/02 (2006.01); B29C 65/14 (2006.01); B29C 65/20 (2006.01); B32B 3/30 (2006.01); B32B 5/32 (2006.01); B32B 7/04 (2006.01); B32B 37/04 (2006.01); B29K 101/12 (2006.01); B29K 105/04 (2006.01); B29L 9/00 (2006.01); B32B 37/06 (2006.01); B32B 38/06 (2006.01); B32B 38/10 (2006.01)
CPC (source: EP)
B29C 65/02 (2013.01); B29C 65/1412 (2013.01); B29C 65/1432 (2013.01); B29C 65/148 (2013.01); B29C 65/20 (2013.01); B29C 66/1122 (2013.01); B29C 66/45 (2013.01); B29C 66/727 (2013.01); B29C 66/73921 (2013.01); B29C 66/949 (2013.01); B32B 3/30 (2013.01); B32B 5/32 (2013.01); B32B 7/05 (2018.12); B32B 37/04 (2013.01); B29C 65/1425 (2013.01); B29C 65/2007 (2013.01); B29C 66/02241 (2013.01); B29C 66/71 (2013.01); B29C 66/72325 (2013.01); B29C 66/73117 (2013.01); B29C 66/7352 (2013.01); B29C 66/73772 (2013.01); B29C 66/73774 (2013.01); B29C 66/81433 (2013.01); B29C 66/919 (2013.01); B29C 66/91933 (2013.01); B29C 66/91943 (2013.01); B29K 2995/0016 (2013.01); B32B 37/06 (2013.01); B32B 38/06 (2013.01); B32B 38/10 (2013.01); B32B 2266/0228 (2013.01); B32B 2305/022 (2013.01); B32B 2307/102 (2013.01); B32B 2307/304 (2013.01); B32B 2307/3065 (2013.01); B32B 2309/105 (2013.01)
Citation (search report)
See references of WO 2016102291A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 2015080178 W 20151217; EP 15813392 A 20151217