CA2207988C - Membrane de cellulose et sa methode de fabrication - Google Patents

Membrane de cellulose et sa methode de fabrication Download PDF

Info

Publication number: CA2207988C
Authority: CA; Canada
Prior art keywords: cellulose; membrane; produced; water; film
Prior art date: 1996-06-14
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Fee Related

Application number

CA 2207988

Other languages

English (en)

Other versions

CA2207988A1 (fr

Inventor

Wan-Kei Wan

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

University of Western Ontario

Original Assignee

University of Western Ontario

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1996-06-14

Filing date

1997-06-16

Publication date

2001-09-11

1997-06-16 Application filed by University of Western Ontario filed Critical University of Western Ontario

1997-12-14 Publication of CA2207988A1 publication Critical patent/CA2207988A1/fr

2001-09-11 Application granted granted Critical

2001-09-11 Publication of CA2207988C publication Critical patent/CA2207988C/fr

2017-06-16 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

229920002678 cellulose Polymers 0.000 title claims abstract description 137
239000001913 cellulose Substances 0.000 title claims abstract description 137
239000012528 membrane Substances 0.000 title claims abstract description 48
238000000034 method Methods 0.000 title claims description 30
238000004519 manufacturing process Methods 0.000 title claims description 11
KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims abstract description 24
239000002904 solvent Substances 0.000 claims abstract description 23
241001136169 Komagataeibacter xylinus Species 0.000 claims abstract description 19
FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims abstract description 16
239000003906 humectant Substances 0.000 claims abstract description 13
238000005266 casting Methods 0.000 claims abstract description 12
238000001879 gelation Methods 0.000 claims abstract description 11
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
238000001035 drying Methods 0.000 claims description 26
PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 21
OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
229910003002 lithium salt Inorganic materials 0.000 claims description 8
159000000002 lithium salts Chemical class 0.000 claims description 8
230000008569 process Effects 0.000 claims description 8
239000006184 cosolvent Substances 0.000 claims description 6
239000002202 Polyethylene glycol Substances 0.000 claims description 4
239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
230000015572 biosynthetic process Effects 0.000 claims description 4
230000001112 coagulating effect Effects 0.000 claims description 4
239000012153 distilled water Substances 0.000 claims description 4
229920001223 polyethylene glycol Polymers 0.000 claims description 4
229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
238000001914 filtration Methods 0.000 claims 6
RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 4
238000003756 stirring Methods 0.000 claims 4
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 2
125000000468 ketone group Chemical group 0.000 claims 2
238000002791 soaking Methods 0.000 claims 2
239000000463 material Substances 0.000 abstract description 17
235000002837 Acetobacter xylinum Nutrition 0.000 abstract description 4
230000007774 longterm Effects 0.000 abstract description 2
230000001172 regenerating effect Effects 0.000 abstract description 2
238000003860 storage Methods 0.000 abstract description 2
206010052428 Wound Diseases 0.000 description 43
208000027418 Wounds and injury Diseases 0.000 description 43
210000003491 skin Anatomy 0.000 description 27
210000004027 cell Anatomy 0.000 description 12
238000002360 preparation method Methods 0.000 description 11
229920000642 polymer Polymers 0.000 description 10
241000196324 Embryophyta Species 0.000 description 9
239000000047 product Substances 0.000 description 9
238000012360 testing method Methods 0.000 description 9
241000894006 Bacteria Species 0.000 description 6
229920003043 Cellulose fiber Polymers 0.000 description 6
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
238000011082 depyrogenation Methods 0.000 description 6
230000000694 effects Effects 0.000 description 5
210000002950 fibroblast Anatomy 0.000 description 5
230000035876 healing Effects 0.000 description 5
230000001954 sterilising effect Effects 0.000 description 5
238000004659 sterilization and disinfection Methods 0.000 description 5
239000013065 commercial product Substances 0.000 description 4
229940079593 drug Drugs 0.000 description 4
239000003814 drug Substances 0.000 description 4
239000000126 substance Substances 0.000 description 4
102000008186 Collagen Human genes 0.000 description 3
108010035532 Collagen Proteins 0.000 description 3
230000001580 bacterial effect Effects 0.000 description 3
239000012620 biological material Substances 0.000 description 3
229920001436 collagen Polymers 0.000 description 3
230000003247 decreasing effect Effects 0.000 description 3
229910052739 hydrogen Inorganic materials 0.000 description 3
239000001257 hydrogen Substances 0.000 description 3
239000007788 liquid Substances 0.000 description 3
238000005259 measurement Methods 0.000 description 3
208000031637 Erythroblastic Acute Leukemia Diseases 0.000 description 2
208000036566 Erythroleukaemia Diseases 0.000 description 2
230000003187 abdominal effect Effects 0.000 description 2
208000021841 acute erythroid leukemia Diseases 0.000 description 2
230000005540 biological transmission Effects 0.000 description 2
230000008859 change Effects 0.000 description 2
238000006243 chemical reaction Methods 0.000 description 2
238000006073 displacement reaction Methods 0.000 description 2
238000004090 dissolution Methods 0.000 description 2
210000000416 exudates and transudate Anatomy 0.000 description 2
210000001724 microfibril Anatomy 0.000 description 2
230000008520 organization Effects 0.000 description 2
238000004445 quantitative analysis Methods 0.000 description 2
108010011485 Aspartame Proteins 0.000 description 1
229920002749 Bacterial cellulose Polymers 0.000 description 1
208000035143 Bacterial infection Diseases 0.000 description 1
235000018185 Betula X alpestris Nutrition 0.000 description 1
235000018212 Betula X uliginosa Nutrition 0.000 description 1
229920001340 Microbial cellulose Polymers 0.000 description 1
235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
235000011613 Pinus brutia Nutrition 0.000 description 1
241000018646 Pinus brutia Species 0.000 description 1
229920000297 Rayon Polymers 0.000 description 1
208000002847 Surgical Wound Diseases 0.000 description 1
210000001015 abdomen Anatomy 0.000 description 1
238000005299 abrasion Methods 0.000 description 1
238000009825 accumulation Methods 0.000 description 1
239000000654 additive Substances 0.000 description 1
230000001464 adherent effect Effects 0.000 description 1
238000013019 agitation Methods 0.000 description 1
238000007605 air drying Methods 0.000 description 1
150000001298 alcohols Chemical class 0.000 description 1
IAOZJIPTCAWIRG-QWRGUYRKSA-N aspartame Chemical compound OC(=O)C[C@H](N)C(=O)N[C@H](C(=O)OC)CC1=CC=CC=C1 IAOZJIPTCAWIRG-QWRGUYRKSA-N 0.000 description 1
239000005016 bacterial cellulose Substances 0.000 description 1
208000022362 bacterial infectious disease Diseases 0.000 description 1
230000008901 benefit Effects 0.000 description 1
230000010261 cell growth Effects 0.000 description 1
230000006037 cell lysis Effects 0.000 description 1
239000000919 ceramic Substances 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
239000000356 contaminant Substances 0.000 description 1
238000009749 continuous casting Methods 0.000 description 1
238000007796 conventional method Methods 0.000 description 1
150000001879 copper Chemical class 0.000 description 1
230000000593 degrading effect Effects 0.000 description 1
210000004207 dermis Anatomy 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
150000002170 ethers Chemical class 0.000 description 1
ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical class CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
230000006872 improvement Effects 0.000 description 1
238000007689 inspection Methods 0.000 description 1
150000002576 ketones Chemical class 0.000 description 1
229920002521 macromolecule Polymers 0.000 description 1
230000007246 mechanism Effects 0.000 description 1
238000002483 medication Methods 0.000 description 1
229910052751 metal Inorganic materials 0.000 description 1
239000002184 metal Substances 0.000 description 1
150000002739 metals Chemical class 0.000 description 1
231100000252 nontoxic Toxicity 0.000 description 1
230000003000 nontoxic effect Effects 0.000 description 1
230000035699 permeability Effects 0.000 description 1
239000004033 plastic Substances 0.000 description 1
229920003023 plastic Polymers 0.000 description 1
229920002635 polyurethane Polymers 0.000 description 1
239000004814 polyurethane Substances 0.000 description 1
238000012545 processing Methods 0.000 description 1
238000004537 pulping Methods 0.000 description 1
239000002510 pyrogen Substances 0.000 description 1
239000004627 regenerated cellulose Substances 0.000 description 1
230000008929 regeneration Effects 0.000 description 1
238000011069 regeneration method Methods 0.000 description 1
238000011160 research Methods 0.000 description 1
238000005464 sample preparation method Methods 0.000 description 1
238000000926 separation method Methods 0.000 description 1
239000007787 solid Substances 0.000 description 1
230000003068 static effect Effects 0.000 description 1
230000008961 swelling Effects 0.000 description 1
230000002522 swelling effect Effects 0.000 description 1
238000009864 tensile test Methods 0.000 description 1
210000001519 tissue Anatomy 0.000 description 1
238000000108 ultra-filtration Methods 0.000 description 1
238000012795 verification Methods 0.000 description 1
239000002023 wood Substances 0.000 description 1
230000029663 wound healing Effects 0.000 description 1

Landscapes

Materials For Medical Uses (AREA)
Manufacture Of Macromolecular Shaped Articles (AREA)

CA 2207988 1996-06-14 1997-06-16 Membrane de cellulose et sa methode de fabrication Expired - Fee Related CA2207988C (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GBGB9612546.3A GB9612546D0 (en)	1996-06-14	1996-06-14	Dressing for wound and method of manufacture thereof
GB9612546.3		1996-06-14

Publications (2)

Publication Number	Publication Date
CA2207988A1 CA2207988A1 (fr)	1997-12-14
CA2207988C true CA2207988C (fr)	2001-09-11

Family

ID=10795350

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA 2207988 Expired - Fee Related CA2207988C (fr)	1996-06-14	1997-06-16	Membrane de cellulose et sa methode de fabrication

Country Status (2)

Country	Link
CA (1)	CA2207988C (fr)
GB (1)	GB9612546D0 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1660147A4 (fr) *	2003-08-13	2011-07-06	Wan-Kei Wan	Nanocomposite a base de poly(alcool de vinyle) et de cellulose bacterienne
CN102888027A (zh) *	2012-09-26	2013-01-23	华南理工大学	一种细菌纤维素/胶原-壳聚糖复合材料及其制备方法

1996
- 1996-06-14 GB GBGB9612546.3A patent/GB9612546D0/en active Pending
1997
- 1997-06-16 CA CA 2207988 patent/CA2207988C/fr not_active Expired - Fee Related

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1660147A4 (fr) *	2003-08-13	2011-07-06	Wan-Kei Wan	Nanocomposite a base de poly(alcool de vinyle) et de cellulose bacterienne
CN102888027A (zh) *	2012-09-26	2013-01-23	华南理工大学	一种细菌纤维素/胶原-壳聚糖复合材料及其制备方法
CN102888027B (zh) *	2012-09-26	2014-10-08	华南理工大学	一种细菌纤维素/胶原-壳聚糖复合材料及其制备方法

Also Published As

Publication number	Publication date
GB9612546D0 (en)	1996-08-14
CA2207988A1 (fr)	1997-12-14

Legal Events

Date	Code	Title	Description
1998-07-21	EEER	Examination request
2017-07-29	MKLA	Lapsed	Effective date: 20170616

Publication	Publication Date	Title
US5846213A (en)	1998-12-08	Cellulose membrane and method for manufacture thereof
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CN116549722B (zh)	2023-11-10	一种细菌纤维素-木葡聚糖-右旋糖酐复合水凝胶伤口敷料及其制备方法
WO1995022354A1 (fr)	1995-08-24	Matiere de couverture de lesions