EP 0737126 A1 19961016 - PROCESS AND APPARATUS FOR RESIN IMPREGNATION OF A POROUS WEB
Title (en)
PROCESS AND APPARATUS FOR RESIN IMPREGNATION OF A POROUS WEB
Title (de)
VERFAHREN UND VORRICHTUNG ZUM HARZIMPRÄGNIEREN EINES PORÖSEN GEWEBES
Title (fr)
PROCEDE ET APPAREIL PERMETTANT D'IMPREGNER DE RESINE UNE AME POREUSE
Publication
Application
Priority
- EP 9404326 W 19941227
- US 17508093 A 19931229
Abstract (en)
[origin: WO9517999A1] A process and an apparatus are disclosed for impregnating a porous web with a thermosettable resin. The process involves the use of resin application means comprising a rotating roller (4) on which is deposited a liquid-form thermosettable resin in essentially uncured state, passing a porous web (2) in countercurrent contact with the thermosettable resin so as to transfer the thermosettable resin into the porous web, exposing the resin-containing porous substrate to an elevated temperature lower than that maintained for partial cure; and passing the resin-containing fibrous web to a heating zone to partially cure the resin and form a prepreg. The process is particularly suited for application of a solventless resin formulation to a glass web in the preparation of a prepreg for an electrical laminate. The apparatus includes resin application means comprising a rotating roller (4); means for applying a liquid-form thermosettable resin onto the rotatable roller; means for advancing, in a countercurrent direction with respect to the direction of motion of the roller, a fibrous web (2) to the roller and in contact with the thermosettable resin thereon and thence to a resin cure zone; and means (13) between the rotatable roller and the resin cure zone (14) to apply heat to the resin-containing substrate.
IPC 1-7
IPC 8 full level
B05C 1/08 (2006.01); B29B 11/16 (2006.01); B29B 15/12 (2006.01); B29C 70/50 (2006.01); B29C 35/08 (2006.01); H05K 3/02 (2006.01)
CPC (source: EP)
B29B 15/122 (2013.01); B29C 70/504 (2013.01); B29C 2035/0822 (2013.01); B29K 2063/00 (2013.01); B29K 2101/10 (2013.01); B29K 2105/0854 (2013.01); B29K 2309/08 (2013.01); H05K 3/022 (2013.01)
Citation (search report)
See references of WO 9517999A1
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
WO 9517999 A1 19950706; AU 1415395 A 19950717; CA 2180131 A1 19950706; CN 1043971 C 19990707; CN 1139398 A 19970101; EP 0737126 A1 19961016; JP H09507174 A 19970722; KR 100362096 B1 20030211; MY 118735 A 20050131
DOCDB simple family (application)
EP 9404326 W 19941227; AU 1415395 A 19941227; CA 2180131 A 19941227; CN 94194688 A 19941227; EP 95905601 A 19941227; JP 51778394 A 19941227; KR 19960703496 A 19960628; MY PI9403402 A 19941219