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1. WO2022094735 - PAPER IMPREGNATION METHOD WITH ANTIMICROBIAL EFFECT, FOR COVERING WOODEN BOARDS

Publication Number WO/2022/094735
Publication Date 12.05.2022
International Application No. PCT/CL2020/050189
International Filing Date 22.12.2020
IPC
A01N 25/00 2006.1
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
25Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
A01N 25/34 2006.1
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
25Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
34Shaped forms, e.g. sheets, not provided for in any other group of this main group
A01N 59/20 2006.1
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
59Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
16Heavy metals; Compounds thereof
20Copper
C08J 7/04 2020.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
7Chemical treatment or coating of shaped articles made of macromolecular substances
04Coating
B32B 29/06 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
29Layered products essentially comprising paper or cardboard
06specially treated, e.g. surfaced, parchmentised
D21H 21/00 2006.1
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
21Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper impregnating or coating material, characterised by its function, form or properties
Applicants
  • INVESTIGACIONES FORESTALES BIOFOREST S.A. [CL]/[CL]
Inventors
  • GORRINI BELMAR, Bruno
  • PARDO HOLTHEUER, Simón
Agents
  • SARGENT & KRAHN
Priority Data
2907-202009.11.2020CL
Publication Language Spanish (es)
Filing Language Spanish (ES)
Designated States
Title
(EN) PAPER IMPREGNATION METHOD WITH ANTIMICROBIAL EFFECT, FOR COVERING WOODEN BOARDS
(ES) PROCESO DE IMPREGNACIÓN DE PAPEL PARA RECUBRIR TABLEROS DE MADERA CON EFECTO ANTIMICROBIANO
(FR) PROCÉDÉ D'IMPRÉGNATION DE PAPIER POUR RECOUVRIR DES PANNEAUX DE BOIS À EFFET ANTIMICROBIEN
Abstract
(EN) Disclosed is a paper impregnation method for covering wooden boards, with antimicrobial effect, which does not interfere with the final colour of the paper. The method comprises the steps of: preparing a copper nanoparticle dispersion, to be included in a mixture used in at least one impregnation bath, the bath also comprising resins and additives; Impregnating the paper in two or more impregnation baths, separated by steps of drying, wherein the nanoparticles can be impregnated on both sides of the paper or on only one side; and lastly, pressing the paper onto the wooden board and subsequently cutting to the size of the board.
(ES) Un proceso de impregnación de papel para recubrir tableros de madera con efecto antimicrobiano, que evita la interferencia con el color final del papel. El proceso comprende las etapas de preparar una dispersión de nanopartículas de cobre la cual se incluirá en una mezcla utilizada en al menos un baño de impregnación el cual además comprende resinas y aditivos. El papel se impregna en 2 o más baños de impregnación, separados por etapas de secado, en donde las nanopartículas se pueden impregnar por ambos lados del papel o sólo por la cara superior. Finalmente, el papel se prensa sobre el tablero de madera y posteriormente se corta del tamaño del tablero.
(FR) L'invention concerne un procédé d'imprégnation de papier pour recouvrir des panneaux de bois à effet antimicrobien, qui évite l'interférence avec la couleur finale du papier. Le procédé comprend les étapes de préparation d'une dispersion de nanoparticules de cuivre, laquelle est incluse dans un mélange utilisé dans au moins un bain d'imprégnation, lequel comprend en outre des résines et des additifs. Le papier est imprégné dans au moins 2 bains d'imprégnation, séparés par des étapes de séchage, les nanoparticules pouvant être imprégnées des deux côtés du papier ou uniquement sur la face supérieure. Enfin, le papier est pressé sur le panneau de bois et ultérieurement, il est ensuite découpé de la taille du panneau.
Latest bibliographic data on file with the International Bureau