EP 0426793 B1 19930804 - PROCESS FOR MAKING A POSSIBLY FLAT SYNTHETIC RESIN MOULDED BLOCK AND PREFORM FOR USE IN SUCH A PROCESS
Title (en)
PROCESS FOR MAKING A POSSIBLY FLAT SYNTHETIC RESIN MOULDED BLOCK AND PREFORM FOR USE IN SUCH A PROCESS
Publication
Application
Priority
AT 106189 A 19890503
Abstract (en)
[origin: WO9013403A1] In a process for making a synthetic resin moulded block from fibres containing cellulose like wood fibres and a condensation resin binder like phenolic resin, for the continuous production of a mould blank or plate, a layer (19) of the viscous binder is applied on a web-like conveyor (2), especially a paper impregnated with phenolic resin, and a fibrous mass is then applied to it in the form of a fibre cake (20). A second coated web of conveyor material (7) is then continuously laid upon the fibrous mass with the coating of binder (26) downwards, whereafter the laminated structure (27) thus obtained is heated and compressed in a heated strip press (10), whereby the binder is distributed generally uniformly on the porous volume of the laminated structure. After the compressed laminated structure (27') has cooled it is used as the preform for the production of high-pressure moulded blocks. In another embodiment of the process, the laminated structure may be directly converted into a synthetic resin moulded block by increasing the pressure, pressing temperature and the time in the strip press with the curing of the binder.
IPC 1-7
IPC 8 full level
B27K 3/04 (2006.01); B27K 3/24 (2006.01); B27N 3/06 (2006.01)
CPC (source: EP)
B27N 3/06 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
WO 9013403 A1 19901115; AT 392758 B 19910610; AT A106189 A 19901115; AT E92393 T1 19930815; AU 5550590 A 19901129; AU 632811 B2 19930114; BR 9006755 A 19910806; CA 2032170 A1 19901104; EP 0426793 A1 19910515; EP 0426793 B1 19930804; JP H03506001 A 19911226
DOCDB simple family (application)
AT 9000042 W 19900427; AT 106189 A 19890503; AT 90906776 T 19900427; AU 5550590 A 19900427; BR 9006755 A 19900427; CA 2032170 A 19900427; EP 90906776 A 19900427; JP 50651090 A 19900427