EP 0550355 B1 19981111 - Synthetic papers from heat stable fibres, pulp and binder
Title (en)
Synthetic papers from heat stable fibres, pulp and binder
Title (de)
Synthetische Papiere aus hitzebeständigen Fasern, Pulpe und Bindemittel
Title (fr)
Papiers synthétiques à base de fibres, pulpe et liant thermostables
Publication
Application
Priority
FR 9116340 A 19911224
Abstract (en)
[origin: EP0550355A1] Reactivable paper and process for obtaining it. The paper consists of fibres with heat resistance >/= 180 DEG C, which are bonded together by means of a fibrous binder consisting of aromatic polyester or polyamide pulp and of a chemical binder consisting of an imide polyether of an aromatic polyester or of a resin of polyimide type, with a particle size smaller than 100 mu m, a softening point of between 50 and 200 DEG C and a degree of crosslinking of between 0.025 and 0.25. The proportion of fibres by weight in the finished paper is preferably generally between 45 and 85 %, that of the fibrous binder between 5 and 20 % and that of the chemical binder between 10 and 50 %. The papers are obtained by a wet route and find wide applications as a function of the degree of advancement of the resin, for example as a dielectric.
IPC 1-7
IPC 8 full level
D21H 13/24 (2006.01); D21H 13/26 (2006.01); D21H 17/53 (2006.01); D21H 17/55 (2006.01); D21H 17/56 (2006.01); D21H 25/06 (2006.01); H01B 3/52 (2006.01)
CPC (source: EP US)
D21H 13/24 (2013.01 - EP US); D21H 13/26 (2013.01 - EP US); D21H 17/55 (2013.01 - EP US); D21H 25/06 (2013.01 - EP US); H01B 3/52 (2013.01 - EP US)
Citation (examination)
- EP 0178943 A1 19860423 - DU PONT [US]
- FR 2156452 A1 19730601 - RHONE POULENC SA
- J.P. CASEY: "Pulp and Paper; Chemistry and Chemical Technology, 3ème édition", JOHN WILEY & SONS, NEW YORK, IV
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0550355 A1 19930707; EP 0550355 B1 19981111; AT E173310 T1 19981115; CA 2086144 A1 19930625; CA 2086144 C 19990914; DE 69227576 D1 19981217; DE 69227576 T2 19990422; FI 925868 A0 19921223; FI 925868 A 19930625; FR 2685363 A1 19930625; FR 2685363 B1 19940204; JP 2740098 B2 19980415; JP H0641897 A 19940215; MX 9207512 A 19940531; NO 924977 D0 19921222; NO 924977 L 19930625; US 5431782 A 19950711
DOCDB simple family (application)
EP 92420476 A 19921221; AT 92420476 T 19921221; CA 2086144 A 19921223; DE 69227576 T 19921221; FI 925868 A 19921223; FR 9116340 A 19911224; JP 34475392 A 19921224; MX 9207512 A 19921223; NO 924977 A 19921222; US 16586493 A 19931214