公开(公告)号：BR112019023867A2

公开(公告)日：2020-06-02

申请号：BR112019023867

申请日：2018-05-15

Applicant: CELLUFORCE INC

Inventor： MYRIAM METHOT ,  PHILIPPE BOURASSA ,  RICHARD BERRY

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

Abstract: trata-se de um nano cristal de celulose quimicamente modificado e redispersível que compreende um aduto iônico de um íon negativo de semiéster de sulfato e fosfato, ácido carboxílico ou misturas dos mesmos e um composto de amina protonado positivamente carregado. os nanocristais de celulose modificados são prontamente redispersíveis em vários meios e emulsões estáveis de produto. os nanocristais de celulose são produzidos adicionando-se a uma suspensão aquosa de nanocristais de celulose ácidos uma quantidade de composto de amina para aumentar o ph da suspensão até cerca de um valor abaixo do pka da dita amina, misturando e secando a suspensão resultante para produzir cnc redispersível.

公开(公告)号：CA2913359C

公开(公告)日：2020-05-26

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：CA2890653C

公开(公告)日：2019-01-08

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：CA2938518A1

公开(公告)日：2015-08-13

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：CA2901498A1

公开(公告)日：2014-08-28

申请号：CA2901498

申请日：2014-02-12

Applicant: CELLUFORCE INC ,  UNIV BRITISH COLUMBIA

Inventor： HAMAD WADOOD YASSER ,  MACLACHLAN MARK JOHN ,  KELLY JOEL ALEXANDER ,  SHOPSOWITZ KEVIN ERIC

IPC: C08L33/00 ,  C08F2/44 ,  C08J3/075 ,  C08J3/24 ,  C08L1/02

Abstract: Composite hydrogels with a chiral organization with tunable responsive photonic properties are conceived. A polymerizable hydrophilic monomer such as acrylamide is reacted in the presence of nanocrystalline cellulose (NCC) to give a composite hydrogel with cellulose nanocrystals embedded in a chiral nematic organization. Through control of the reaction conditions, the hydrogel can exhibit photonic colour that can be varied throughout the visible and near-infrared regions. The colour shifts substantially and reversibly upon swelling and shrinking of the hydrogel through solvation in aqueous and nonaqueous media. The responsive properties can be tailored both through choice of monomer and/or through chemical modification of the NCC surface. Examples of possible applications of the materials are: tunable reflective filters, chemical sensors, stationary phases for electrophoresis of chiral or achiral substances, and as a template to generate new materials with chiral nematic structures.

公开(公告)号：CA2880555A1

公开(公告)日：2014-02-06

申请号：CA2880555

申请日：2013-07-17

Applicant: CELLUFORCE INC

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

IPC: C08B15/00 ,  A23K1/00 ,  A23L29/262 ,  A23L29/281 ,  A61K8/73 ,  A61K47/38

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：EP3931240A1

公开(公告)日：2022-01-05

申请号：EP20762205.1

申请日：2020-02-24

Applicant: Celluforce Inc.

Inventor： BERRY, Richard ,  HOJABR, Sassan ,  BOURASSA, Philippe

IPC: C08J3/11 ,  C08J3/26 ,  C08L1/02

公开(公告)号：EP2756016A4

公开(公告)日：2015-05-20

申请号：EP12831845

申请日：2012-09-12

Applicant: CELLUFORCE INC

Inventor： HAMAD WADOOD Y ,  SU SHUNXING

IPC: C08F251/02 ,  C08L23/06 ,  C08L51/02

CPC classification number: C08F251/02 ,  C08L1/02 ,  C08L23/06 ,  C08L51/02 ,  C08L2207/04 ,  C08L2207/062 ,  C08F220/10

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 lower 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.

Abstract translation: 公开了基于纳米晶体纤维素（NCC）的超分子材料，其制备方法及其在热塑性和热固性聚合物复合材料中的应用。 NCC和一种或两种聚合物的超分子材料通过原位表面接枝共聚合在多种溶剂体系（包括水）中合成。 纳米尺寸超分子材料被设计成具有低极性和高疏水性的独特组合，并且作为用于苛刻的生物系统（例如但不限于聚烯烃和聚酯）的共聚物。 通过将基于NCC的超分子材料与聚合物基质混合来制备增强的功能和机械性能的纳米复合材料。 超分子材料用于包装材料的复合开发，用于汽车和建筑的结构复合材料，作为夹层泡沫复合材料，或与生物相容性聚合物结合在医疗应用中。

公开(公告)号：EP3004247A1

公开(公告)日：2016-04-13

申请号：EP14803363.2

申请日：2014-05-22

Applicant: Celluforce Inc.

Inventor： BERRY, Richard ,  GRANGER, Alain

IPC: C08L75/04 ,  C08L1/02

CPC classification number: C08L75/08 ,  C08G18/4081 ,  C08G18/4829 ,  C08G18/4841 ,  C08G18/6484 ,  C08G18/7621 ,  C08G18/7671 ,  C08G2101/0008 ,  C08G2101/0066 ,  C08G2190/00 ,  C08G2350/00 ,  C08G2380/00 ,  C08K2201/011 ,  C08L1/02

Abstract: A process for preparing polyurethane composites includes (i) providing a dispersion of nanocrystalline cellulose in (a) one or more polyols, (b) one or more isocyanates, or (c) one or more polyols and one or more isocyanate, mixed together; wherein the amount of water in the nanocrystalline cellulose is less than about 1% w/w; (ii) mixing the dispersion of (i)(a) with an isocyanate or (i)(b) with a polyol and a catalyst to allow polymerization; or mixing the dispersion of (i)(c) and a catalyst to allow polymerization; and (iii) isolating the polyurethane composite. A method for improving properties of polyurethanes includes dispersing nanocrystalline cellulose into one or both parts of a two part polyol/isocyanate precursors prior to allowing polymerization of the precursors, wherein the amount of water in the nanocrystalline cellulose is less than about 1% w/w; mixing the dispersion with a catalyst; and polymerizing the precursors to provide the polyurethane.

公开(公告)号：EP2970639A1

公开(公告)日：2016-01-20

申请号：EP14764661.6

申请日：2014-03-12

Applicant: Celluforce Inc.

Inventor： HAMAD, Wadood Yasser ,  ATIFI, Siham ,  BERRY, Richard Michael

IPC: C08L1/04 ,  C08J3/20 ,  C08J5/18 ,  C08K5/42

CPC classification number: C08J5/18 ,  B29C39/14 ,  B29L2007/008 ,  C08B15/02 ,  C08J2301/02 ,  C08J2301/04 ,  C08K5/42 ,  C08K2201/008 ,  C08L1/04

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.

Abstract translation: 本发明描述了包含纳米晶体纤维素（NCC）或纤维素纳米晶体（CNC）以及受控量的合适的两性离子（两性）表面活性剂的新型柔性膜的开发。 这些薄膜是彩虹色的，并具有高水平的结构完整性，其中可以设计机械性能以适应最终应用。 柔性NCC薄膜可用于多种应用，例如静电屏蔽，气体阻隔，硬涂层和印刷。