EP 1518024 B2 20130807 - PREPREG

Title (en)

PREPREG

Title (de)

VORIMPRÄGNAT

Title (fr)

PREIMPREGNE

Publication

EP 1518024 B2 20130807 (DE)

Application

EP 04710840 A 20040213

Priority

DE 10307966 A 20030224
EP 2004001393 W 20040213

Abstract (en)

[origin: EP1757731A2] A pre-impregnate (I) is prepared by impregnation of a raw paper with a thermally cross-linkable combination (II) comprising a formaldehyde-free resin solution and a polymer dispersion in a mix ratio (solids:solids) of 45:55-10:90 with a residual moisture content of 2-3 wt.% whereby the dried pre-impregnate (I) has a degree of cross-linking of 10-85%. An independent claim is included for a process for the preparation of the preimpregnate (I) by impregnating raw paper with the combination (II) and drying.

IPC 8 full level

D21H 27/26 (2006.01); D21H 17/70 (2006.01); D21H 25/06 (2006.01)

CPC (source: EP)

D21H 27/26 (2013.01); D21H 17/70 (2013.01); D21H 25/06 (2013.01)

Citation (opposition)

Opponent :

DE 10134302 C1 20021212 - TECHNOCELL DEKOR GMBH & CO KG [DE], et al
DE 19735959 A1 19990225 - BASF AG [DE]
DE 2949306 A1 19810611 - LETRON GMBH & CO [DE]
DE 19728250 A1 19990107 - KOEHLER DECOR GMBH & CO KG [DE]
WO 9517551 A1 19950629 - ARJO WIGGINS SA [FR], et al
WO 9400523 A1 19940106 - BUHL PAPIERFABRIKEN GMBH GEB [DE], et al
ARNOLD, H. ET AL: "Individuelles Differential Coating- bessere Bedruckbarkeit", NEUE VORIMPRÄGNATE, HOLZ- U. KUNSTSTOFF - VERARBEITUNG, June 2001 (2001-06-01), pages 36 - 38
ARNOLD, H. ET AL: "Herstellung einseitig imprägnierter Druckpapiere mittels Filmpresse", WOCHENBLATT FÜR PARPIERFABRIKATION, June 2000 (2000-06-01), pages 350 - 355

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2004074577 A1 20040902; AT E338167 T1 20060915; BR PI0407760 A 20061003; BR PI0407760 B1 20140422; CA 2518942 A1 20040902; CA 2518942 C 20140805; DE 10307966 A1 20040909; DE 10307966 B4 20050811; DE 10307966 C5 20090528; DE 502004001322 D1 20061012; EP 1518024 A1 20050330; EP 1518024 B1 20060830; EP 1518024 B2 20130807; EP 1757731 A2 20070228; EP 1757731 A3 20121205; ES 2271845 T3 20070416; ES 2271845 T5 20131122

DOCDB simple family (application)

EP 2004001393 W 20040213; AT 04710840 T 20040213; BR PI0407760 A 20040213; CA 2518942 A 20040213; DE 10307966 A 20030224; DE 502004001322 T 20040213; EP 04710840 A 20040213; EP 06119238 A 20040213; ES 04710840 T 20040213