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1. (WO1992010341) WOOD SURFACE LAYER FOR A PARQUET AND METHOD FOR MANUFACTURING THE SAME
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/010341 International Application No.: PCT/FI1991/000375
Publication Date: 25.06.1992 International Filing Date: 05.12.1991
Chapter 2 Demand Filed: 01.07.1992
IPC:
B27K 5/00 (2006.01) ,B27M 3/04 (2006.01) ,E04F 15/022 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
27
WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
K
PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING OR BLEACHING OF WOOD, OR FOR TREATING OF WOOD WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
5
Staining or dyeing wood; Bleaching wood; Treating of wood not provided for in groups B27K1/ or  B27K3/105
B PERFORMING OPERATIONS; TRANSPORTING
27
WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
M
WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B-B27L79; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
3
Manufacture or reconditioning of specific semi-finished or finished articles
04
of flooring elements, e.g. parqueting blocks
E FIXED CONSTRUCTIONS
04
BUILDING
F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
15
Flooring
02
Flooring or floor layers composed of a number of similar elements
022
Flooring consisting of parquetry tiles on a non-rollable sub-layer of other material, e.g. board, concrete, cork
Applicants:
OY POLYKEM AB [FI/FI]; Läkkisepäntie 11 SF-00620 Helsinki, FI (AllExceptUS)
AHO, Yrjö [FI/FI]; FI (UsOnly)
Inventors:
AHO, Yrjö; FI
Agent:
LEITZINGER OY; Ruoholahdenkatu 8 SF-00180 Helsinki, FI
Priority Data:
90601405.12.1990FI
Title (EN) WOOD SURFACE LAYER FOR A PARQUET AND METHOD FOR MANUFACTURING THE SAME
(FR) COUCHE DE SURFACE EN BOIS POUR PARQUET ET PROCEDE DE FABRICATION
Abstract:
(EN) The invention relates to a wood surface layer for a parquet and a method for manufacturing the same. A piece of fresh wood is cut in the cross-grain direction into slices or blocks which are carried through a microwave oven. Immediately downstream of the oven, as the slices or blocks are cooling, the surface thereof is coated with a water-soluble polyalcohol which impregnates in wood as a result of the action of a vacuum developing within the wood. The polyalcohol replaces some of the cell-wall water of wood and thus prevents the formation of seasoning cracks and the moisture induced movements in wood.
(FR) L'invention se rapporte à une couche de surfaces en bois destinée à un parquet, ainsi qu'à son procédé de fabrication. On coupe un morceau de bois neuf, dans le sens transversal aux veines, en tranches ou en blocs et on les passe dans un four, alors que les tranches ou les blocs refroidissent, on revêt leur surface avec un polyalcool soluble dans l'eau, qui s'imprègne dans le bois sous l'action du vide créé à l'intérieur de celui-ci. Le polyalcool remplace partiellement l'eau des parois cellulaires du bois et, de ce fait, prévient la formation de fissures dues au vieillissement et de mouvements provoqués dans le bois par l'humidité.
Designated States: JP, KR, SU, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, MC, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0560853RU02073088US5527579JPH06506162DE000069118910