EP 3490771 A1 20190605 - PROCESS FOR PRODUCING MOTOR VEHICLE SEAT CUSHIONING
Title (en)
PROCESS FOR PRODUCING MOTOR VEHICLE SEAT CUSHIONING
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER KRAFTFAHRZEUGSITZPOLSTERUNG
Title (fr)
PROCÉDÉ DE RÉALISATION D'UNE MATELASSURE DE SIÈGE DE VÉHICULE AUTOMOBILE
Publication
Application
Priority
- FR 1657175 A 20160726
- FR 2017052076 W 20170725
Abstract (en)
[origin: WO2018020149A1] The invention relates to a process comprising the following steps: providing a cover (2) comprising a first insert (3), said insert comprising a layer of coating material (4) and a foam sublayer (5); placing said cover in a mold (6); positioning a thermoplastic film (10) on said sublayer; injecting a foam precursor mixture (11) so as to produce a block (12) of padding; said process makes provision that: said film is based on polyurethane; the melting point thereof is between 40°C and 60°C; the melt-mass flow rate thereof is greater than 15 g/10 min, so that said film degrades under the action of the heat released during the formation of the foam of said block, in order to enable an overmolding of said sublayer by said block substantially without penetration of the foam of said block into the thickness of said sublayer.
IPC 8 full level
B29C 44/14 (2006.01); B29C 44/12 (2006.01); B29K 75/00 (2006.01); B29L 31/58 (2006.01)
CPC (source: EP US)
B29C 44/1261 (2013.01 - EP US); B29C 44/1285 (2013.01 - EP US); B29C 44/145 (2013.01 - EP US); B29K 2075/00 (2013.01 - EP US); B29L 2031/58 (2013.01 - EP US)
Citation (search report)
See references of WO 2018020149A1
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)
WO 2018020149 A1 20180201; CN 110035877 A 20190719; EP 3490771 A1 20190605; FR 3054472 A1 20180202; FR 3054472 B1 20190719; JP 2019527640 A 20191003; JP 7046911 B2 20220404; US 2019270226 A1 20190905
DOCDB simple family (application)
FR 2017052076 W 20170725; CN 201780054516 A 20170725; EP 17754190 A 20170725; FR 1657175 A 20160726; JP 2019504958 A 20170725; US 201716319889 A 20170725