EP 3767032 A1 20210120 - SHAPE FORMING OF DELIGNIFIED WOOD
Title (en)
SHAPE FORMING OF DELIGNIFIED WOOD
Title (de)
FORMGEBUNG VON DELIGNIFIZIERTEM HOLZ
Title (fr)
FAÇONNAGE DE BOIS DÉLIGNIFIÉ
Publication
Application
Priority
EP 19187447 A 20190719
Abstract (en)
The present invention relates to a method for producing densified wood (41). A wet delignified piece of wood (40) comprising cellulose fibers oriented as naturally grown is placed in a mold (10, 16), wherein the mold comprises a porous section that forms a molding surface (13, 14, 15) and/or a porous layer (50) is present in said mold (10, 16) contacting said delignified piece of wood (40). The delignified piece of wood (40) is placed in such a way that the cellulose fibers align predominantly in parallel to the molding surface (13, 14, 15). Subsequently, a pressure difference is applied to press the delignified piece of wood (40) against said molding surface (13, 14, 15) yielding a densified piece of wood (41). Furthermore, the densified piece of wood (41) is provided.
IPC 8 full level
CPC (source: EP)
D21J 3/00 (2013.01)
Citation (applicant)
- EP 17168238 A 20170426
- H. G. HIRSCHBERG: "Handbuch Verfahrenstechnik und Anlagenbau", 1999, SPRINGER VERLAG, pages: 436
- PURE & APPL. CHEM., vol. 66, no. 8, 1994, pages 1739 - 1758
Citation (search report)
- [XDA] EP 3396063 A1 20181031 - ETH ZUERICH [CH]
- [A] GB 2413301 A 20051026 - GLORY TEAM IND LTD [HK]
- [A] US 2008263890 A1 20081030 - PICARD EDMOND-PIERRE [FR]
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)
DOCDB simple family (application)
EP 19187447 A 20190719