CA2391576C - Paper making processes using enzyme and polymer combinations - Google Patents

Paper making processes using enzyme and polymer combinations Download PDF

Info

Publication number: CA2391576C
Authority: CA; Canada
Prior art keywords: pulp; cationic polymer; enzyme; cationic; composition
Prior art date: 1999-11-19
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 - Lifetime

Application number

CA002391576A

Other languages

English (en)

French (fr)

Other versions

CA2391576A1 (en

Inventor

Walter B. Hill, Jr.

Richard L. Barclay

James A. O'malley

Randall W. Conrod

John Desjardins

Roger M. Plourde

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.)

Buckman Laboratories International Inc

Original Assignee

Buckman Laboratories International Inc

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.)

1999-11-19

Filing date

2000-11-14

Publication date

2007-04-24

2000-11-14 Application filed by Buckman Laboratories International Inc filed Critical Buckman Laboratories International Inc

2001-05-25 Publication of CA2391576A1 publication Critical patent/CA2391576A1/en

2007-04-24 Application granted granted Critical

2007-04-24 Publication of CA2391576C publication Critical patent/CA2391576C/en

2020-11-14 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

108090000790 Enzymes Proteins 0.000 title claims abstract description 76
102000004190 Enzymes Human genes 0.000 title claims abstract description 76
238000000034 method Methods 0.000 title claims abstract description 70
229920000642 polymer Polymers 0.000 title claims description 21
239000000203 mixture Substances 0.000 claims abstract description 116
229920006317 cationic polymer Polymers 0.000 claims abstract description 79
239000000123 paper Substances 0.000 claims abstract description 53
125000002091 cationic group Chemical group 0.000 claims abstract description 37
229920002472 Starch Polymers 0.000 claims abstract description 32
235000019698 starch Nutrition 0.000 claims abstract description 32
239000008107 starch Substances 0.000 claims abstract description 27
230000001461 cytolytic effect Effects 0.000 claims abstract description 19
239000011087 paperboard Substances 0.000 claims abstract description 17
QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 14
239000007787 solid Substances 0.000 claims description 10
HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical group NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 6
239000004952 Polyamide Substances 0.000 claims description 6
229920002647 polyamide Polymers 0.000 claims description 6
229920002401 polyacrylamide Polymers 0.000 claims description 5
LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 3
238000004519 manufacturing process Methods 0.000 claims description 3
229920001059 synthetic polymer Polymers 0.000 claims description 3
LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims 1
229940088598 enzyme Drugs 0.000 description 52
239000000654 additive Substances 0.000 description 11
239000003139 biocide Substances 0.000 description 7
239000000178 monomer Substances 0.000 description 7
230000000996 additive effect Effects 0.000 description 5
238000004891 communication Methods 0.000 description 5
230000014759 maintenance of location Effects 0.000 description 5
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
239000011859 microparticle Substances 0.000 description 4
230000003115 biocidal effect Effects 0.000 description 3
239000003795 chemical substances by application Substances 0.000 description 3
229920001577 copolymer Polymers 0.000 description 3
238000012986 modification Methods 0.000 description 3
230000004048 modification Effects 0.000 description 3
230000000704 physical effect Effects 0.000 description 3
SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 description 2
PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
229940037003 alum Drugs 0.000 description 2
239000000945 filler Substances 0.000 description 2
-1 for example Polymers 0.000 description 2
229920001519 homopolymer Polymers 0.000 description 2
239000002655 kraft paper Substances 0.000 description 2
239000003381 stabilizer Substances 0.000 description 2
238000011282 treatment Methods 0.000 description 2
QLAJNZSPVITUCQ-UHFFFAOYSA-N 1,3,2-dioxathietane 2,2-dioxide Chemical compound O=S1(=O)OCO1 QLAJNZSPVITUCQ-UHFFFAOYSA-N 0.000 description 1
SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
JNODDICFTDYODH-UHFFFAOYSA-N 2-hydroxytetrahydrofuran Chemical compound OC1CCCO1 JNODDICFTDYODH-UHFFFAOYSA-N 0.000 description 1
108010059892 Cellulase Proteins 0.000 description 1
239000004367 Lipase Substances 0.000 description 1
102000004882 Lipase Human genes 0.000 description 1
108090001060 Lipase Proteins 0.000 description 1
CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
239000002202 Polyethylene glycol Substances 0.000 description 1
240000008042 Zea mays Species 0.000 description 1
235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
235000002017 Zea mays subsp mays Nutrition 0.000 description 1
229910021536 Zeolite Inorganic materials 0.000 description 1
150000001253 acrylic acids Chemical class 0.000 description 1
PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
125000004103 aminoalkyl group Chemical group 0.000 description 1
125000000129 anionic group Chemical group 0.000 description 1
239000000440 bentonite Substances 0.000 description 1
229910000278 bentonite Inorganic materials 0.000 description 1
SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
229940106157 cellulase Drugs 0.000 description 1
238000004140 cleaning Methods 0.000 description 1
239000000701 coagulant Substances 0.000 description 1
235000005822 corn Nutrition 0.000 description 1
HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
238000001035 drying Methods 0.000 description 1
239000000975 dye Substances 0.000 description 1
230000000694 effects Effects 0.000 description 1
230000002255 enzymatic effect Effects 0.000 description 1
235000011187 glycerol Nutrition 0.000 description 1
239000011121 hardwood Substances 0.000 description 1
229940051250 hexylene glycol Drugs 0.000 description 1
239000004615 ingredient Substances 0.000 description 1
230000003993 interaction Effects 0.000 description 1
229920000831 ionic polymer Polymers 0.000 description 1
150000002500 ions Chemical class 0.000 description 1
235000019421 lipase Nutrition 0.000 description 1
DYUWTXWIYMHBQS-UHFFFAOYSA-N n-prop-2-enylprop-2-en-1-amine Chemical compound C=CCNCC=C DYUWTXWIYMHBQS-UHFFFAOYSA-N 0.000 description 1
239000003002 pH adjusting agent Substances 0.000 description 1
238000010979 pH adjustment Methods 0.000 description 1
239000000049 pigment Substances 0.000 description 1
229920000768 polyamine Polymers 0.000 description 1
229920001223 polyethylene glycol Polymers 0.000 description 1
229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
239000001267 polyvinylpyrrolidone Substances 0.000 description 1
235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
229920001592 potato starch Polymers 0.000 description 1
239000002243 precursor Substances 0.000 description 1
239000011122 softwood Substances 0.000 description 1
229920001897 terpolymer Polymers 0.000 description 1
AZJYLVAUMGUUBL-UHFFFAOYSA-A u1qj22mc8e Chemical compound [F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[F-].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].O=[Si]=O.O=[Si]=O.O=[Si]=O.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3 AZJYLVAUMGUUBL-UHFFFAOYSA-A 0.000 description 1
239000010457 zeolite Substances 0.000 description 1

Classifications

- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/005—Microorganisms or enzymes
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
- D21H11/06—Sulfite or bisulfite pulp
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
- D21H17/29—Starch cationic
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
- D21H17/375—Poly(meth)acrylamide
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
- D21H17/44—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
- D21H17/45—Nitrogen-containing groups
- D21H17/455—Nitrogen-containing groups comprising tertiary amine or being at least partially quaternised
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/76—Processes or apparatus for adding material to the pulp or to the paper characterised by choice of auxiliary compounds which are added separately from at least one other compound, e.g. to improve the incorporation of the latter or to obtain an enhanced combined effect
- D21H23/765—Addition of all compounds to the pulp

Landscapes

Life Sciences & Earth Sciences (AREA)
Microbiology (AREA)
Paper (AREA)
Sanitary Thin Papers (AREA)
Materials For Medical Uses (AREA)
Making Paper Articles (AREA)

CA002391576A 1999-11-19 2000-11-14 Paper making processes using enzyme and polymer combinations Expired - Lifetime CA2391576C (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US16633099P	1999-11-19	1999-11-19
US60/166,330		1999-11-19
PCT/US2000/042119 WO2001036740A2 (en)	1999-11-19	2000-11-14	Paper making processes using enzyme and polymer combinations

Publications (2)

Publication Number	Publication Date
CA2391576A1 CA2391576A1 (en)	2001-05-25
CA2391576C true CA2391576C (en)	2007-04-24

Family

ID=22602807

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002391576A Expired - Lifetime CA2391576C (en)	1999-11-19	2000-11-14	Paper making processes using enzyme and polymer combinations

Country Status (14)

Country	Link
EP (1)	EP1250487B1 (pt)
JP (1)	JP4528478B2 (pt)
CN (1)	CN1281818C (pt)
AT (1)	ATE483059T1 (pt)
AU (1)	AU770908B2 (pt)
BR (1)	BR0015768B1 (pt)
CA (1)	CA2391576C (pt)
DE (1)	DE60045040D1 (pt)
ES (1)	ES2350914T3 (pt)
MX (1)	MXPA02004886A (pt)
NZ (1)	NZ518975A (pt)
PT (1)	PT1250487E (pt)
WO (1)	WO2001036740A2 (pt)
ZA (1)	ZA200203739B (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR101276386B1 (ko) *	2005-01-05	2013-06-19	아쿠아세르브 인크	종이 및 판지에서 살진균제의 효능을 향상시키는 방법
CA2686257C (en) *	2007-05-16	2013-07-02	Buckman Laboratories International, Inc.	Methods to control organic contaminants in fibers
MX2012011703A (es) *	2010-04-15	2012-11-06	Buckman Labor Inc	Procesos de fabricacion de papel y sistemas que usan una combinacion de enzima y coagulante cationico.
JP5933550B2 (ja) *	2010-08-25	2016-06-08	ソレニス・テクノロジーズ・ケイマン・エル・ピー	紙および板紙の生産でパルプ化セルロース系材料中のデンプンの利点を増加させる方法
AU2012299794B2 (en) *	2011-08-25	2017-03-02	Solenis Technologies Cayman, L.P.	Method for increasing the advantages of strength aids in the production of paper and paperboard
PT2929087T (pt) *	2012-12-06	2017-03-23	Kemira Oyj	Composições utilizadas em papel e métodos de fabrico de papel
CN104153243A (zh) *	2013-05-13	2014-11-19	广西南宁碧欧生物科技有限公司	一种新型促进打浆的纤维改性生物酶制剂
CN103541259B (zh) *	2013-10-19	2015-12-02	沅江浣溪沙酶技术有限公司	芦苇、狄苇造纸制浆用复合酶液的生产方法及应用
BR102015032911A2 (pt) *	2015-12-29	2017-07-04	Fibria Celulose S.A	Process for the production of pulp pulp, pulp pulp and its use, paper
CN112601859A (zh) *	2018-07-10	2021-04-02	诺维信公司	制造纸张或纸板的方法
CN110983851A (zh) *	2019-11-20	2020-04-10	山鹰华南纸业有限公司	一种提高纸机烘干部运行效率的方法
EP4259879A4 (en)	2020-12-14	2024-10-09	Buckman Laboratories International, Inc.	System and method of dynamic corrective enzyme selection and formulation for pulp and paper production

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4894119A (en)	1985-04-10	1990-01-16	Drew Chemical Corporation	Retention and/or drainage and/or dewatering aid
FI85389C (fi) *	1989-12-12	1992-04-10	Enso Gutzeit Oy	Foerfarande foer tillverkning av massa.
US5169497A (en) *	1991-10-07	1992-12-08	Nalco Chemical Company	Application of enzymes and flocculants for enhancing the freeness of paper making pulp
US5256252A (en) *	1992-07-15	1993-10-26	Nalco Chemical Company	Method for controlling pitch deposits using lipase and cationic polymer
US5356800A (en) *	1992-11-30	1994-10-18	Buckman Laboratories International, Inc.	Stabilized liquid enzymatic compositions
DK131193D0 (pt) *	1993-11-23	1993-11-23	Novo Nordisk As
US5423946A (en) *	1994-03-07	1995-06-13	Nalco Chemical Company	Cationic anionic polyelectrolytes for enhancing the freeness of paper pulp
KR100256636B1 (ko) *	1994-04-12	2000-05-15	김충섭	종이내 충전물의 함량을 높이고 스코트 내부결합강도를 증가시키는 종이의 제조방법
US5501770A (en) *	1994-08-12	1996-03-26	Nalco Chemical Company	Enzymes in combination with polyelectrolytes for enhancing the freeness of clarified sludge in papermaking
JPH1025690A (ja) *	1996-07-15	1998-01-27	Oji Paper Co Ltd	片艶紙の製造方法
FI990444A7 (fi) *	1998-03-11	1999-09-12	Nalco Chemical Co	Kuitumassan jauhautuneisuustilan lisäys

2000
- 2000-11-14 CA CA002391576A patent/CA2391576C/en not_active Expired - Lifetime
- 2000-11-14 JP JP2001538607A patent/JP4528478B2/ja not_active Expired - Fee Related
- 2000-11-14 BR BRPI0015768-6A patent/BR0015768B1/pt not_active IP Right Cessation
- 2000-11-14 WO PCT/US2000/042119 patent/WO2001036740A2/en not_active Ceased
- 2000-11-14 NZ NZ518975A patent/NZ518975A/en not_active IP Right Cessation
- 2000-11-14 AU AU32696/01A patent/AU770908B2/en not_active Ceased
- 2000-11-14 MX MXPA02004886A patent/MXPA02004886A/es active IP Right Grant
- 2000-11-14 DE DE60045040T patent/DE60045040D1/de not_active Expired - Lifetime
- 2000-11-14 AT AT00991473T patent/ATE483059T1/de active
- 2000-11-14 EP EP00991473A patent/EP1250487B1/en not_active Expired - Lifetime
- 2000-11-14 PT PT00991473T patent/PT1250487E/pt unknown
- 2000-11-14 CN CN00815720.0A patent/CN1281818C/zh not_active Expired - Fee Related
- 2000-11-14 ES ES00991473T patent/ES2350914T3/es not_active Expired - Lifetime
2002
- 2002-05-10 ZA ZA200203739A patent/ZA200203739B/en unknown

Also Published As

Publication number	Publication date
EP1250487A2 (en)	2002-10-23
BR0015768A (pt)	2002-10-22
JP4528478B2 (ja)	2010-08-18
CA2391576A1 (en)	2001-05-25
ES2350914T3 (es)	2011-01-28
ATE483059T1 (de)	2010-10-15
ZA200203739B (en)	2003-02-26
BR0015768B1 (pt)	2009-08-11
AU770908B2 (en)	2004-03-04
AU3269601A (en)	2001-05-30
CN1423717A (zh)	2003-06-11
MXPA02004886A (es)	2003-02-27
EP1250487B1 (en)	2010-09-29
DE60045040D1 (de)	2010-11-11
WO2001036740A3 (en)	2002-02-07
PT1250487E (pt)	2010-11-29
CN1281818C (zh)	2006-10-25
NZ518975A (en)	2003-11-28
JP2003515002A (ja)	2003-04-22
WO2001036740A2 (en)	2001-05-25

Legal Events

Date	Code	Title	Description
2002-12-11	EEER	Examination request
2021-01-18	MKEX	Expiry	Effective date: 20201116

Publication	Publication Date	Title
FI107747B (fi)	2001-09-28	Entsyymejä yhdessä polylektrolyyttien kanssa selkeytetyn lietteen freenesluvun parantamiseksi paperinvalmistuksessa
US6939437B1 (en)	2005-09-06	Paper making processes using enzyme and polymer combinations
EP1250487B1 (en)	2010-09-29	Paper making processes using enzyme and polymer combinations
AU2001263249B2 (en)	2005-04-28	Papermaking pulp and flocculant comprising acidic aqueous alumina sol
CA2468740C (en)	2009-12-22	Papermaking process using enzyme-treated sludge, and products
CN103180510A (zh)	2013-06-26	制造纸和纸板时增强淀粉在打浆纤维素物质中的优越性的方法
US6770170B2 (en)	2004-08-03	Papermaking pulp including retention system
AU2001263249A1 (en)	2002-02-14	Papermaking pulp and flocculant comprising acidic aqueous alumina sol
EP0671507B1 (en)	2009-11-04	Cationic and anionic polyelectrolytes for enhancing the freeness of paper pulp
JP2003515002A5 (pt)	2005-11-04
AU2005206565A1 (en)	2005-08-04	Process for making paper
AU2001243605B2 (en)	2005-04-07	Process for making paper
AU2001243605A1 (en)	2002-02-14	Process for making paper