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1. WO2014190428 - POLYURETHANE COMPOSITES COMPRISING NANOCRYSTALLINE CELLULOSE AND METHOD FOR IMPROVING PROPERTIES OF POLYURETHANES THEREOF

Publication Number WO/2014/190428
Publication Date 04.12.2014
International Application No. PCT/CA2014/050473
International Filing Date 22.05.2014
IPC
C08L 75/04 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
75Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
04Polyurethanes
C08L 1/02 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
1Compositions of cellulose, modified cellulose, or cellulose derivatives
02Cellulose; Modified cellulose
CPC
C08G 18/4081
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
40High-molecular-weight compounds
4009Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
4081Mixtures of compounds of group C08G18/64 with other macromolecular compounds
C08G 18/4829
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
40High-molecular-weight compounds
48Polyethers
4829Polyethers containing at least three hydroxy groups
C08G 18/4841
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
40High-molecular-weight compounds
48Polyethers
4833Polyethers containing oxyethylene units
4837and other oxyalkylene units
4841containing oxyethylene end groups
C08G 18/6484
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
40High-molecular-weight compounds
64Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
6484Polysaccharides and derivatives thereof
C08G 18/7621
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
70characterised by the isocyanates or isothiocyanates used
72Polyisocyanates or polyisothiocyanates
74cyclic
76aromatic
7614containing only one aromatic ring
7621being toluene diisocyanate including isomer mixtures
C08G 18/7671
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
70characterised by the isocyanates or isothiocyanates used
72Polyisocyanates or polyisothiocyanates
74cyclic
76aromatic
7657containing two or more aromatic rings
7664containing alkylene polyphenyl groups
7671containing only one alkylene bisphenyl group
Applicants
  • CELLUFORCE INC. [CA]/[CA]
Inventors
  • BERRY, Richard
  • GRANGER, Alain
Agents
  • NORTON ROSE FULBRIGHT CANADA LLP/S.E.N.C.R.L., S.R.L.
Priority Data
61/828,24129.05.2013US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) POLYURETHANE COMPOSITES COMPRISING NANOCRYSTALLINE CELLULOSE AND METHOD FOR IMPROVING PROPERTIES OF POLYURETHANES THEREOF
(FR) COMPOSITES À BASE DE POLYURÉTHANE COMPRENANT DE LA CELLULOSE NANOCRISTALLINE ET PROCÉDÉ PERMETTANT D'AMÉLIORER LES PROPRIÉTÉS DES POLYURÉTHANES
Abstract
(EN)
The disclosure relates to polyurethane (PU) composites comprising nanocrystalline cellulose (NCC) and methods for improving tensile strength and elongation. The process to prepare the polyurethane comprises providing a dispersion of NCC in (a)one or more polyols, (b) one or more isocyanates, or (c) one or more polyols and one or more isocyanate, separately or mixed together, mixing with a catalyst and isolating the polyurethane. Preferred embodiments include an NCC content of less than 5%, dried NCC starting material, and the NCC being fully dispersed and not aggregated. The polyurethane may be used in elastomeric fibres, paints, solid polyurethane plastics, thermoplastic and cast elastomers and adhesives and/or binders.
(FR)
La présente invention concerne des composites à base de polyuréthane (PU) comprenant de la cellulose nanocristalline (NCC) et des procédés permettant d'améliorer la résistance à la traction et l'allongement. Le procédé de préparation du polyuréthane comprend l'obtention d'une dispersion de NCC dans (a) un ou plusieurs polyols, (b) un ou plusieurs isocyanates ou (c) un ou plusieurs polyols et un ou plusieurs isocyanates, séparément ou mélangés ensemble, le mélange avec un catalyseur et l'isolement du polyuréthane. Dans des modes de réalisation préférés, la teneur en NCC est inférieure à 5 %, la NCC de départ est sèche, et la NCC est totalement dispersée et non agrégée. Le polyuréthane peut être utilisé dans des fibres élastomères, des peintures, des plastiques solides à base de polyuréthane, des élastomères thermoplastiques et coulés, et des adhésifs et/ou des liants.
Also published as
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