CROSS-LAMINATED PLYWOOD PRODUCTION

The invention relates to a method for producing cross-laminated plywood, wherein method comprises applying an aqueous binder composition on at least one surface of at least one veneer, wherein the aqueous binder composition is prepared by using at least polymerizable substance and crosslinking agent...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Taavila, Kati, Koski, Anna
Format:	Patent
Sprache:	eng ; fin
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS DYES FILLING PASTES INKS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF MATERIALS AS ADHESIVES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The invention relates to a method for producing cross-laminated plywood, wherein method comprises applying an aqueous binder composition on at least one surface of at least one veneer, wherein the aqueous binder composition is prepared by using at least polymerizable substance and crosslinking agent, and wherein:- at least 20 weight-% of the polymerizable substance originates from lignin;- at least 50 % of the molecules in the binder composition have a molecular weight of above 3000 Da and at least 5 % of the molecules in the binder composition have a molecular weight of below 1000 Da; and- the polydispersity index of the binder composition is 6 or higher.The invention further relates to cross-laminated plywood, to a binder composition and to uses thereof.