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1. WO2019051212 - SELECTIVELY DEPOLYMERIZING CELLULOSIC MATERIALS FOR USE AS THERMAL AND ACOUSTIC INSULATORS

Publication Number WO/2019/051212
Publication Date 14.03.2019
International Application No. PCT/US2018/049934
International Filing Date 07.09.2018
IPC
B27K 5/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
KPROCESSES, 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
5Staining or dyeing wood; Bleaching wood; Treating of wood not provided for in groups B27K1/ or  B27K3/105
02Staining or dyeing wood; Bleaching wood
B27K 5/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
KPROCESSES, 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
5Staining or dyeing wood; Bleaching wood; Treating of wood not provided for in groups B27K1/ or  B27K3/105
04Combined bleaching or impregnating and drying of wood
B27K 5/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
KPROCESSES, 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
5Staining or dyeing wood; Bleaching wood; Treating of wood not provided for in groups B27K1/ or  B27K3/105
06Softening or hardening wood
CPC
B27K 1/00
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR
1Damping wood
B27K 2200/10
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR
2200Wooden materials to be treated
10Articles made of particles or fibres consisting of wood or other lignocellulosic material
B27K 2240/10
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR
2240Purpose of the treatment
10Extraction of components naturally occurring in wood, cork, straw, cane or reed
B27K 2240/30
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR
2240Purpose of the treatment
30Fireproofing
B27K 3/0214
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR
3Impregnating wood, ; e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
02Processes; Apparatus
0207Pretreatment of wood before impregnation
0214Drying
B27K 3/0221
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR
3Impregnating wood, ; e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
02Processes; Apparatus
0207Pretreatment of wood before impregnation
0221Pore opening
Applicants
  • DTE MATERIALS INCORPORATED [US]/[US]
Inventors
  • JOLLY, Tanner
  • URIZAR, Jose
Agents
  • LEE, Elaine K.
Priority Data
62/555,89908.09.2017US
62/676,81225.05.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SELECTIVELY DEPOLYMERIZING CELLULOSIC MATERIALS FOR USE AS THERMAL AND ACOUSTIC INSULATORS
(FR) DÉPOLYMÉRISATION SÉLECTIVE DE MATÉRIAUX CELLULOSIQUES DESTINÉS À ÊTRE UTILISÉS EN TANT QU'ISOLANTS THERMIQUES ET ACOUSTIQUES
Abstract
(EN)
The present invention relates to the creation of thermally insulating materials derived from cellulosic materials by selectively depolymerizing the materials anatomy. Cellulosic materials may be comprised of three main biopolymers: lignin, hemicellulose, and cellulose. The present invention relates to the chemical and physical removal of lignin and hemicellulose, while leaving the cellulose unaltered to induce increased porosity within the material and the material's macrostructure matrix for use as thermal and acoustic insulation. The increased porosity will be due to the creation of closed cell voids within the cellulosic matrix. These voids will increase the thermal and acoustic insulating performance of the cellulosic materials. The selective removal of secondary biopolymers from cellulosic materials allow for isolation of other value added products that can be regenerated through fewer reactions/steps. This is a novel advantage over other similar processes that dissolve cellulose completely, making it harder to extract and isolate secondary off-stream products.
(FR)
La présente invention concerne la création de matériaux thermiquement isolants dérivés de matériaux cellulosiques par dépolymérisation sélective de l'anatomie des matériaux. Les matériaux cellulosiques peuvent être constitués de trois biopolymères principaux: la lignine, l'hémicellulose et la cellulose. La présente invention concerne l'élimination chimique et physique de lignine et de l'hémicellulose, tout en laissant la cellulose non modifiée pour induire une porosité accrue à l'intérieur du matériau et dans la matrice de macrostructure du matériau pour une utilisation comme matériau isolant thermique et acoustique. La porosité accrue sera due à la création de vides cellulaires fermés à l'intérieur de la matrice cellulosique. Ces vides augmenteront les performances d'isolation thermique et acoustique des matériaux cellulosiques. L'élimination sélective de biopolymères secondaires à partir de matériaux cellulosiques permet d'isoler d'autres produits à valeur ajoutée qui peuvent être régénérés par moins de réactions/étapes. Ceci est un nouvel avantage par rapport à d'autres procédés similaires qui dissolvent complètement la cellulose, ce qui rend plus difficile l'extraction et l'isolement des produits secondaires hors circuit.
Also published as
Latest bibliographic data on file with the International Bureau