公开(公告)号：CA2848337C

公开(公告)日：2018-04-24

申请号：CA2848337

申请日：2012-09-12

Applicant: CELLUFORCE INC

Inventor： HAMAD WADOOD Y ,  SU SHUNXING

IPC: C08F251/02 ,  C08L51/02

Abstract: Nanocrystalline cellulose (NCC)-based supramolecular materials, a method for their preparation and their use in thermoplastic and thermoset polymer composites are disclosed. Supramolecular materials of NCC and one or two polymers are synthesized by in situ surface graft copohmerization in a multitude of solvent systems, including water. The nano-scale size supramolecular materials are engineered to have a unique combination of lowr polarity and high hydrophobicity and function as copohmers for demanding pohmeric systems such as, but not limited to, polyolefins and polyesters. Nanocomposite materials of enhanced functionality and mechanical properties are produced by compounding the NCC-based supramolecular materials with polymer matrices. The supramolecular materials are used in composite development for packaging materials, structural composites for automotive and construction, as sandwiched foam composites or, combined with biocompatible polymers, in medical applications.

公开(公告)号：CA2913359A1

公开(公告)日：2014-12-04

申请号：CA2913359

申请日：2014-05-22

Applicant: CELLUFORCE INC

Inventor： BERRY RICHARD ,  GRANGER ALAIN

IPC: C08L75/04 ,  C08L1/02

Abstract: 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.

公开(公告)号：CA2938518C

公开(公告)日：2021-02-23

申请号：CA2938518

申请日：2015-02-04

Applicant: CELLUFORCE INC

Inventor： FENG MARTIN W ,  WANG XIANG-MING ,  ZHANG YAOLIN ,  RAYMOND STEPHAN ,  BERRY RICHARD

IPC: C09J161/00 ,  C09J11/08

Abstract: The present disclosure relates to a formaldehyde-based adhesive comprising Nanocrystalline Cellulose (NCC), a process for preparing same and uses thereof.

公开(公告)号：CA2848337A1

公开(公告)日：2013-03-21

申请号：CA2848337

申请日：2012-09-12

Applicant: CELLUFORCE INC

Inventor： HAMAD WADOOD Y ,  SU SHUNXING

IPC: C08F251/02 ,  C08L51/02

Abstract: Nanocrystalline cellulose (NCC)-based supramolecular materials, a method for their preparation and their use in thermoplastic and thermoset polymer composites are disclosed. Supramolecular materials of NCC and one or two polymers are synthesized by in situ surface graft copohmerization in a multitude of solvent systems, including water. The nano-scale size supramolecular materials are engineered to have a unique combination of lowr polarity and high hydrophobicity and function as copohmers for demanding pohmeric systems such as, but not limited to, polyolefins and polyesters. Nanocomposite materials of enhanced functionality and mechanical properties are produced by compounding the NCC-based supramolecular materials with polymer matrices. The supramolecular materials are used in composite development for packaging materials, structural composites for automotive and construction, as sandwiched foam composites or, combined with biocompatible polymers, in medical applications.

公开(公告)号：CA2905200C

公开(公告)日：2021-04-20

申请号：CA2905200

申请日：2014-03-12

Applicant: CELLUFORCE INC

Inventor： HAMAD WADOOD YASSER ,  ATIFI SIHAM ,  BERRY RICHARD MCKINNON

IPC: C08L1/02 ,  C08J3/20 ,  C08J5/18 ,  C08K5/42

Abstract: This invention describes development of a novel flexible film comprising nanocrystalline cellulose (NCC), or cellulose nanocrystals (CNC), and a controlled amount of a suitable zwitterionic (amphoteric) surfactant. The films are iridescent and have a high level of structural integrity, where mechanical properties can be engineered to suit the end applications. Flexible NCC films can be used in a multitude of applications, for instance, electrostatic shielding, gas barrier, hard coatings, printing.

公开(公告)号：CA3063236A1

公开(公告)日：2018-11-22

申请号：CA3063236

申请日：2018-05-15

Applicant: CELLUFORCE INC

Inventor： BOURASSA PHILIPPE ,  METHOT MYRIAM ,  BERRY RICHARD MCKINNON

IPC: C08J3/12 ,  C08B3/30 ,  C08L1/02 ,  C30B29/58

Abstract: A redispersible, chemically modified cellulose nanocrystal comprising an ionic adduct of a negative ion of sulfate, phosphate half-ester, carboxylic acid or mixtures thereof and a positively charged protonated amine compound. The modified cellulose nanocrystals are readily redispersible in a variety of media and produce stable emulsions. The modified cellulose nanocrystals are produced by adding to an aqueous suspension of acidic cellulose nanocrystals, a quantity of the amine compound to increase the pH of the suspension to about below the pKa of said amine, mixing and drying the resulting suspension to produce the redispersible CNC.

公开(公告)号：CA2955248A1

公开(公告)日：2016-01-28

申请号：CA2955248

申请日：2015-07-17

Applicant: CELLUFORCE INC

Inventor： SHI ZENGQIAN ,  TANG JUNTAO ,  TAM KAM CHIU ,  BERRY RICHARD

IPC: C08J7/04 ,  A01N25/10 ,  A01N59/16 ,  A01P1/00 ,  B01J27/00 ,  B01J37/00 ,  C30B33/00

Abstract: The present disclosure relates to use of polydopamine (PD) coated cellulose nanocrystals (CNCs) as template for further conjugation of functional oligomers (amines, carboxylic acids etc.) and the immobilization of various types of CNC hybrid nanomaterial nanoparticles to improve their stability in aqueous solution, e.g. the preparation of silver nanoparticle on CNC. Surface functionalization of CNC with polydopamine can be performed by mixing dopamine and CNCs for certain time at designed temperature. The resultant PD-CNCs can be used to stabilize metallic and inorganic nanoparticles, which could be generated in-situ, and further immobilized on the surface of PD coated CNCs. Benefiting from the improved stability, the resultant nanoparticles immobilized PD-CNC system also generally possess higher catalytic activity than the nanoparticles alone.

公开(公告)号：CA2890653A1

公开(公告)日：2014-05-15

申请号：CA2890653

申请日：2013-11-12

Applicant: CELLUFORCE INC

Inventor： HAMAD WADOOD YASSER ,  SU SHUNXING

IPC: C08F251/02 ,  C08L51/02 ,  C08L63/00

Abstract: The disclosure relates to a novel process for functionalizing NCC, a method for producing amine-cured epoxy-based nanocomposites through the use of said functionalized NCC, and nanocomposites thereof. The process for functionalizating NCC comprises providing a mixture of NCC and one or more monomers. The mixture is suitable for free radical polymerization and the monomer is cross-linkable with epoxy and is aqueous soluble. The polymerization takes place in the presence of a free radical initiator and oxygen is purged from the mixture and the initiator solution. The epoxy-based nanocomposite is produced by mixing the funtionalized NCC with an amine-curable epoxy resin and a hardener, in a solvent, and allowing the mixture to cure.

公开(公告)号：CA2880555C

公开(公告)日：2021-08-31

申请号：CA2880555

申请日：2013-07-17

Applicant: CELLUFORCE INC

Inventor： BERRY RICHARD M ,  PARINAZ AKHLAGHI SEYEDEH ,  TAM KAM CHIU

IPC: C08J7/12 ,  A01N25/10 ,  A23L29/262 ,  A23L29/281 ,  A61K8/73 ,  A61K47/38 ,  C05G3/00 ,  C30B29/58 ,  C30B33/00

Abstract: The present disclosure relates to surface modified nanocrystalline cellulose (NCC) prepared by chemical modification of NCC as well as its use thereof, including as carrier of particular chemical compounds. The surface of nanocrystalline cellulose (NCC) was modified with chitosan oligosaccharide (CSos) by selectively oxidizing the primary alcohol moieties of NCC followed by coupling of the amino groups of CSos to the oxidized NCC to provide the desired material (NCC-CSos).

公开(公告)号：CA3093712A1

公开(公告)日：2020-09-03

申请号：CA3093712

申请日：2020-02-24

Applicant: CELLUFORCE INC

Inventor： BERRY RICHARD ,  HOJABR SASSAN ,  BOURASSA PHILIPPE

IPC: C08J3/11 ,  C08J3/26 ,  C08L1/02

Abstract: The disclosure provides a nanodispersion of cellulose nanocrystals (CNCs) in monoethylene glycol (MEG) as well as a method for dispersing CNCs in MEG and a process for preparing a polymer composites comprising a CNC nanodispersion in MEG comprising copolymerizing said nanodispersion of CNCs and at least one monomer polymerizable with said MEG and/or CNCs.