US20090321025A1 - Pulp reactivity enhancement - Google Patents

Pulp reactivity enhancement Download PDF

Info

Publication number: US20090321025A1
Authority: US; United States
Prior art keywords: pulp; cellulose; spacer; viscose; alkaline treatment
Prior art date: 2006-06-14
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.): Abandoned

Application number

US12/304,497

Other languages

English (en)

Inventor

Derek Andrew Weightman

Habil Klaus Fischer

Heinzhorst Mobius

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.)

SAPPI Manufacturing Pty Ltd

Original Assignee

SAPPI Manufacturing Pty Ltd

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.)

2006-06-14

Filing date

2007-06-12

Publication date

2009-12-31

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38832189&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20090321025(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

2007-06-12 Application filed by SAPPI Manufacturing Pty Ltd filed Critical SAPPI Manufacturing Pty Ltd

2009-02-26 Assigned to SAPPI MANUFACTURING (PTY) LTD. reassignment SAPPI MANUFACTURING (PTY) LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FISCHER, HABIL KLAUS, MOBIUS, HAINZHORST, WEIGHTMAN, DEREK ANDREW

2009-12-31 Publication of US20090321025A1 publication Critical patent/US20090321025A1/en

Status Abandoned legal-status Critical Current

Links

230000009257 reactivity Effects 0.000 title abstract description 4
229920002678 cellulose Polymers 0.000 claims abstract description 38
239000001913 cellulose Substances 0.000 claims abstract description 38
238000000034 method Methods 0.000 claims abstract description 37
125000006850 spacer group Chemical group 0.000 claims abstract description 31
229920001223 polyethylene glycol Polymers 0.000 claims abstract description 23
229920003043 Cellulose fiber Polymers 0.000 claims abstract description 18
238000011282 treatment Methods 0.000 claims abstract description 14
239000003513 alkali Substances 0.000 claims abstract description 11
229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 8
229920000058 polyacrylate Polymers 0.000 claims abstract description 3
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 87
239000002202 Polyethylene glycol Substances 0.000 claims description 21
230000004913 activation Effects 0.000 claims description 8
239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical group O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 2
239000007864 aqueous solution Substances 0.000 claims description 2
125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 2
125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
238000004880 explosion Methods 0.000 claims description 2
229910052739 hydrogen Inorganic materials 0.000 claims description 2
239000001257 hydrogen Substances 0.000 claims description 2
229920001477 hydrophilic polymer Polymers 0.000 claims description 2
229920003169 water-soluble polymer Polymers 0.000 claims 4
229920002488 Hemicellulose Polymers 0.000 abstract description 20
238000003825 pressing Methods 0.000 abstract description 13
235000019422 polyvinyl alcohol Nutrition 0.000 abstract description 7
229920000297 Rayon Polymers 0.000 description 36
235000011121 sodium hydroxide Nutrition 0.000 description 28
229920000875 Dissolving pulp Polymers 0.000 description 23
QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 22
238000000605 extraction Methods 0.000 description 12
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 8
ZBJVLWIYKOAYQH-UHFFFAOYSA-N naphthalen-2-yl 2-hydroxybenzoate Chemical compound OC1=CC=CC=C1C(=O)OC1=CC=C(C=CC=C2)C2=C1 ZBJVLWIYKOAYQH-UHFFFAOYSA-N 0.000 description 8
238000006243 chemical reaction Methods 0.000 description 7
239000011121 hardwood Substances 0.000 description 7
230000008569 process Effects 0.000 description 7
LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 6
239000002253 acid Substances 0.000 description 5
239000000654 additive Substances 0.000 description 5
239000004094 surface-active agent Substances 0.000 description 5
230000032683 aging Effects 0.000 description 4
238000001035 drying Methods 0.000 description 4
239000012991 xanthate Substances 0.000 description 4
238000005266 casting Methods 0.000 description 3
230000015556 catabolic process Effects 0.000 description 3
238000006731 degradation reaction Methods 0.000 description 3
238000001212 derivatisation Methods 0.000 description 3
239000002994 raw material Substances 0.000 description 3
230000005070 ripening Effects 0.000 description 3
239000011122 softwood Substances 0.000 description 3
238000009987 spinning Methods 0.000 description 3
VMSLCPKYRPDHLN-UHFFFAOYSA-N (R)-Humulone Chemical compound CC(C)CC(=O)C1=C(O)C(CC=C(C)C)=C(O)C(O)(CC=C(C)C)C1=O VMSLCPKYRPDHLN-UHFFFAOYSA-N 0.000 description 2
229920000742 Cotton Polymers 0.000 description 2
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
230000015572 biosynthetic process Effects 0.000 description 2
239000013043 chemical agent Substances 0.000 description 2
230000006866 deterioration Effects 0.000 description 2
238000010894 electron beam technology Methods 0.000 description 2
238000005516 engineering process Methods 0.000 description 2
ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 2
239000007788 liquid Substances 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
239000000203 mixture Substances 0.000 description 2
229920013654 poly(arylene sulfone) Polymers 0.000 description 2
238000002203 pretreatment Methods 0.000 description 2
238000006467 substitution reaction Methods 0.000 description 2
LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 2
229920000298 Cellophane Polymers 0.000 description 1
244000166124 Eucalyptus globulus Species 0.000 description 1
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
241000218657 Picea Species 0.000 description 1
235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
241000018646 Pinus brutia Species 0.000 description 1
235000011613 Pinus brutia Nutrition 0.000 description 1
229920002535 Polyethylene Glycol 1500 Polymers 0.000 description 1
229920001131 Pulp (paper) Polymers 0.000 description 1
229920002125 Sokalan® Polymers 0.000 description 1
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
150000001298 alcohols Chemical class 0.000 description 1
238000004061 bleaching Methods 0.000 description 1
239000003054 catalyst Substances 0.000 description 1
125000003636 chemical group Chemical group 0.000 description 1
238000001125 extrusion Methods 0.000 description 1
239000000835 fiber Substances 0.000 description 1
238000001914 filtration Methods 0.000 description 1
230000007062 hydrolysis Effects 0.000 description 1
238000006460 hydrolysis reaction Methods 0.000 description 1
230000006872 improvement Effects 0.000 description 1
239000012535 impurity Substances 0.000 description 1
239000013067 intermediate product Substances 0.000 description 1
239000002655 kraft paper Substances 0.000 description 1
230000014759 maintenance of location Effects 0.000 description 1
239000010813 municipal solid waste Substances 0.000 description 1
230000003647 oxidation Effects 0.000 description 1
238000007254 oxidation reaction Methods 0.000 description 1
239000000123 paper Substances 0.000 description 1
239000004584 polyacrylic acid Substances 0.000 description 1
238000006116 polymerization reaction Methods 0.000 description 1
239000000047 product Substances 0.000 description 1
238000012797 qualification Methods 0.000 description 1
239000002964 rayon Substances 0.000 description 1
230000008929 regeneration Effects 0.000 description 1
238000011069 regeneration method Methods 0.000 description 1
235000013580 sausages Nutrition 0.000 description 1
239000002002 slurry Substances 0.000 description 1
229910052708 sodium Inorganic materials 0.000 description 1
239000011734 sodium Substances 0.000 description 1
159000000000 sodium salts Chemical class 0.000 description 1
RPACBEVZENYWOL-XFULWGLBSA-M sodium;(2r)-2-[6-(4-chlorophenoxy)hexyl]oxirane-2-carboxylate Chemical compound [Na+].C=1C=C(Cl)C=CC=1OCCCCCC[C@]1(C(=O)[O-])CO1 RPACBEVZENYWOL-XFULWGLBSA-M 0.000 description 1
239000007787 solid Substances 0.000 description 1
239000002904 solvent Substances 0.000 description 1
238000003860 storage Methods 0.000 description 1
239000000126 substance Substances 0.000 description 1
229910021653 sulphate ion Inorganic materials 0.000 description 1
230000008961 swelling Effects 0.000 description 1
VUYXVWGKCKTUMF-UHFFFAOYSA-N tetratriacontaethylene glycol monomethyl ether Chemical compound COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO VUYXVWGKCKTUMF-UHFFFAOYSA-N 0.000 description 1

Classifications

- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
- C08B1/08—Alkali cellulose
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B9/00—Cellulose xanthate; Viscose

Landscapes

Chemical & Material Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Polymers & Plastics (AREA)
Materials Engineering (AREA)
Health & Medical Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Medicinal Chemistry (AREA)
Biochemistry (AREA)
Organic Chemistry (AREA)
Wood Science & Technology (AREA)
Paper (AREA)
Artificial Filaments (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)
Compositions Of Macromolecular Compounds (AREA)
Processes Of Treating Macromolecular Substances (AREA)

US12/304,497 2006-06-14 2007-06-12 Pulp reactivity enhancement Abandoned US20090321025A1 (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
ZA2006/04915		2006-06-14
ZA200604915		2006-06-14
PCT/IB2007/052212 WO2007144824A2 (en)	2006-06-14	2007-06-12	Pulp reactivity enhancement

Publications (1)

Publication Number	Publication Date
US20090321025A1 true US20090321025A1 (en)	2009-12-31

Family

ID=38832189

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
US12/304,497 Abandoned US20090321025A1 (en)	2006-06-14	2007-06-12	Pulp reactivity enhancement

Country Status (14)

Country	Link
US (1)	US20090321025A1 (ja)
EP (1)	EP2047030B2 (ja)
JP (1)	JP5094854B2 (ja)
CN (2)	CN101473089A (ja)
AT (1)	ATE478189T1 (ja)
BR (1)	BRPI0711685B1 (ja)
CA (1)	CA2655035C (ja)
DE (1)	DE602007008574D1 (ja)
EG (1)	EG26078A (ja)
ES (1)	ES2350960T5 (ja)
RU (1)	RU2434020C2 (ja)
TW (1)	TWI352765B (ja)
WO (1)	WO2007144824A2 (ja)
ZA (1)	ZA200810506B (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20110118389A1 (en) *	2007-09-07	2011-05-19	Kolon Industries, Inc.	Cellulose-based fiber, and tire cord comprising the same
WO2012160361A1 (en) *	2011-05-20	2012-11-29	Innovia Films Limited	Process
WO2012160363A1 (en) *	2011-05-20	2012-11-29	Innovia Films Limited	Process
US20130337715A1 (en) *	2010-12-20	2013-12-19	Lenzing Ag	Flame retardant cellulosic man-made fibers
WO2020058524A1 (en)	2018-09-21	2020-03-26	Nouryon Chemicals International B.V.	The use of ethoxylated fatty amido alcohols as a reactivity additive in the process wherein cellulose is reacted with lye
US11332883B2 (en)	2013-12-31	2022-05-17	International Paper Company	Treated Kraft pulp compositions and methods of making the same

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2710054A1 (en) *	2011-05-20	2014-03-26	Innovia Films Limited	Process for processing cellulose films or shaped articles
GB2501732A (en) *	2012-05-02	2013-11-06	Innovia Films Ltd	Improved steeping conditions for manufacture of viscose
EA024257B1 (ru) *	2013-05-24	2016-08-31	Сумгаитский Государственный Университет	Способ активации целлюлозы
EA024276B1 (ru) *	2013-06-19	2016-09-30	Сумгаитский Государственный Университет	Способ активации целлюлозы
EA025957B1 (ru) *	2013-12-23	2017-02-28	Сумгаитский Государственный Университет	Способ активации целлюлозы
EA025911B1 (ru) *	2013-12-23	2017-02-28	Сумгаитский Государственный Университет	Способ получения активированного порошка целлюлозы
SE538752C2 (en) *	2014-11-21	2016-11-08	Innventia Ab	Process for the production of a treated pulp, treated pulp, and textile fibers produced from the treated pulp
MX2017012913A (es)	2015-04-10	2018-06-06	Comet Biorefining Inc	Metodos y composiciones para el tratamiento de biomasa celulosica y productos producidos por estos.
BR112020005941A2 (pt) *	2017-10-17	2020-10-06	Kao Corporation	promotor de crescimento vegetal compreendendo uma biomassa lignocelulósica, método para produzir um promotor de crescimento de planta, e método para cultivar uma planta
EA202092695A1 (ru)	2018-05-10	2021-02-25	Комет Байорифайнинг Инк.	Композиции, содержащие глюкозу и гемицеллюлозу, и их применение
RU2684020C1 (ru) *	2018-05-30	2019-04-03	Юрий Петрович Келлер	Способ активации целлюлозы методом парового взрыва в щелочной среде

Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2393817A (en) *	1942-10-19	1946-01-29	Rayonier Inc	Production of cellulosic products
US4210747A (en) *	1976-03-10	1980-07-01	Kemira Oy	Process for the preparation of viscose
US4298728A (en) *	1980-06-03	1981-11-03	Hercules Incorporated	Method of preparing hydroxyethyl ethers of cellulose
US4339573A (en) *	1979-07-18	1982-07-13	Henkel Kommanditgesellschaft Auf Aktien	Preparation of cellulose derivatives using highly reactive alkali cellulose
US4341892A (en) *	1980-03-19	1982-07-27	Henkel Kommanditgesellschaft Auf Aktien	Preparation of alkali cellulose having a low water content
US5470519A (en) *	1992-03-04	1995-11-28	Viskase Corporation	Method of manufacturing a cellulosic article containing an olefinic oxide polymer
US5939544A (en) *	1995-03-25	1999-08-17	Rhodia Acetow Ag	Process for activating polysaccharides, polysaccharides produced by this process, and use thereof
US6538130B1 (en) *	1997-09-23	2003-03-25	Acordis Kelheim Gmbh	Manufacture of viscose and of articles therefrom

Family Cites Families (8)

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Publication number	Priority date	Publication date	Assignee	Title
GB735481A (en) *	1952-05-24	1955-08-24	Rayonier Inc	Improved cellulose products
GB847714A (en) *	1957-05-16	1960-09-14	Buckeye Cellulose Corp	Manufacture of regenerated cellulose products
FI53144C (ja) *	1976-03-10	1978-02-10	Kemira Oy
DD158904A1 (de) *	1980-05-22	1983-02-09	Betancourt Oscar Quintela	Verfahren zur herstellung von viskose mit guter filtrierbarkeit aus bagassezellstoff
DD241602A1 (de) †	1985-10-03	1986-12-17	Adw Ddr	Verfahren zur herstellung von alkalicellulose
DE19742692A1 (de) †	1997-09-26	1999-04-01	Rhodia Acetow Ag	Verfahren zur Aktivierung von Polysacchariden
KR100611890B1 (ko) *	2002-05-31	2006-08-11	주식회사 효성	고균질 셀룰로오스 용액의 제조방법
JP5377816B2 (ja) *	2005-06-16	2013-12-25	信越化学工業株式会社	セルロースエーテルの製造方法

2007
- 2007-06-12 ZA ZA200810506A patent/ZA200810506B/xx unknown
- 2007-06-12 DE DE602007008574T patent/DE602007008574D1/de active Active
- 2007-06-12 CA CA2655035A patent/CA2655035C/en not_active Expired - Fee Related
- 2007-06-12 BR BRPI0711685-3A patent/BRPI0711685B1/pt not_active IP Right Cessation
- 2007-06-12 WO PCT/IB2007/052212 patent/WO2007144824A2/en active Application Filing
- 2007-06-12 JP JP2009514966A patent/JP5094854B2/ja not_active Expired - Fee Related
- 2007-06-12 RU RU2008152234/12A patent/RU2434020C2/ru active
- 2007-06-12 AT AT07766718T patent/ATE478189T1/de active
- 2007-06-12 US US12/304,497 patent/US20090321025A1/en not_active Abandoned
- 2007-06-12 CN CNA2007800223366A patent/CN101473089A/zh active Pending
- 2007-06-12 ES ES07766718.6T patent/ES2350960T5/es active Active
- 2007-06-12 EP EP07766718.6A patent/EP2047030B2/en not_active Not-in-force
- 2007-06-12 CN CN201410281753.4A patent/CN104292342A/zh active Pending
- 2007-06-13 TW TW096121309A patent/TWI352765B/zh not_active IP Right Cessation
2008
- 2008-12-14 EG EG2008122008A patent/EG26078A/en active

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2393817A (en) *	1942-10-19	1946-01-29	Rayonier Inc	Production of cellulosic products
US4210747A (en) *	1976-03-10	1980-07-01	Kemira Oy	Process for the preparation of viscose
US4339573A (en) *	1979-07-18	1982-07-13	Henkel Kommanditgesellschaft Auf Aktien	Preparation of cellulose derivatives using highly reactive alkali cellulose
US4341892A (en) *	1980-03-19	1982-07-27	Henkel Kommanditgesellschaft Auf Aktien	Preparation of alkali cellulose having a low water content
US4298728A (en) *	1980-06-03	1981-11-03	Hercules Incorporated	Method of preparing hydroxyethyl ethers of cellulose
US5470519A (en) *	1992-03-04	1995-11-28	Viskase Corporation	Method of manufacturing a cellulosic article containing an olefinic oxide polymer
US5939544A (en) *	1995-03-25	1999-08-17	Rhodia Acetow Ag	Process for activating polysaccharides, polysaccharides produced by this process, and use thereof
US6538130B1 (en) *	1997-09-23	2003-03-25	Acordis Kelheim Gmbh	Manufacture of viscose and of articles therefrom

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* Cited by examiner, † Cited by third party
Title
SAPPI, Sustainability report: Glossary, 2011 (downlaoded online 6/15/2015. *
SMOOK, Handbook of Pulp and Paper Terminology, 1990, chapter 8, 2-4, 6-8, and 11-12. *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20110118389A1 (en) *	2007-09-07	2011-05-19	Kolon Industries, Inc.	Cellulose-based fiber, and tire cord comprising the same
US8584440B2 (en) *	2007-09-07	2013-11-19	Kolon Industries, Inc.	Cellulose-based fiber, and tire cord comprising the same
US20130337715A1 (en) *	2010-12-20	2013-12-19	Lenzing Ag	Flame retardant cellulosic man-made fibers
US9988743B2 (en) *	2010-12-20	2018-06-05	Lenzing Ag	Process of making flame retardant cellulosic man-made fibers
US10577723B2 (en)	2010-12-20	2020-03-03	Lenzing Ag	Flame retardant cellulosic man-made fibers
WO2012160361A1 (en) *	2011-05-20	2012-11-29	Innovia Films Limited	Process
WO2012160363A1 (en) *	2011-05-20	2012-11-29	Innovia Films Limited	Process
US11332883B2 (en)	2013-12-31	2022-05-17	International Paper Company	Treated Kraft pulp compositions and methods of making the same
WO2020058524A1 (en)	2018-09-21	2020-03-26	Nouryon Chemicals International B.V.	The use of ethoxylated fatty amido alcohols as a reactivity additive in the process wherein cellulose is reacted with lye

Also Published As

Publication number	Publication date
CN101473089A (zh)	2009-07-01
CN104292342A (zh)	2015-01-21
JP5094854B2 (ja)	2012-12-12
RU2434020C2 (ru)	2011-11-20
ATE478189T1 (de)	2010-09-15
BRPI0711685A2 (pt)	2011-12-20
ES2350960T3 (es)	2011-01-28
ZA200810506B (en)	2010-03-31
RU2008152234A (ru)	2010-07-20
JP2009540144A (ja)	2009-11-19
BRPI0711685B1 (pt)	2018-04-17
TWI352765B (en)	2011-11-21
EP2047030B1 (en)	2010-08-18
DE602007008574D1 (de)	2010-09-30
CA2655035C (en)	2013-08-13
WO2007144824A3 (en)	2008-04-10
WO2007144824A2 (en)	2007-12-21
TW200811332A (en)	2008-03-01
EP2047030B2 (en)	2014-04-09
EG26078A (en)	2013-02-04
ES2350960T5 (es)	2014-07-15
EP2047030A2 (en)	2009-04-15
CA2655035A1 (en)	2007-12-21

Legal Events

Date

Code

Title

Description

2009-02-26

AS

Assignment

Owner name: SAPPI MANUFACTURING (PTY) LTD., SOUTH AFRICA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WEIGHTMAN, DEREK ANDREW;FISCHER, HABIL KLAUS;MOBIUS, HAINZHORST;REEL/FRAME:022313/0622

Effective date: 20090122

2015-12-28

STCB

Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION

Publication	Publication Date	Title
EP2047030B1 (en)	2010-08-18	Pulp reactivity enhancement
EP1311717B1 (en)	2006-08-09	Alkaline pulp having low average degree of polymerization values and method of producing the same
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