CA2633507C - Method of decreasing the rate of photoyellowing - Google Patents
Method of decreasing the rate of photoyellowing Download PDFInfo
- Publication number
- CA2633507C CA2633507C CA2633507A CA2633507A CA2633507C CA 2633507 C CA2633507 C CA 2633507C CA 2633507 A CA2633507 A CA 2633507A CA 2633507 A CA2633507 A CA 2633507A CA 2633507 C CA2633507 C CA 2633507C
- Authority
- CA
- Canada
- Prior art keywords
- aqueous solution
- thiocyanate
- paper sheet
- papermaking process
- photoyellowing
- Prior art date
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 53
- 230000003247 decreasing effect Effects 0.000 title claims abstract description 9
- 239000007864 aqueous solution Substances 0.000 claims abstract description 33
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N thiocyanic acid Chemical class SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 25
- 150000003839 salts Chemical class 0.000 claims abstract description 14
- 239000000126 substance Substances 0.000 claims description 23
- SOIFLUNRINLCBN-UHFFFAOYSA-N ammonium thiocyanate Chemical compound [NH4+].[S-]C#N SOIFLUNRINLCBN-UHFFFAOYSA-N 0.000 claims description 22
- VGTPCRGMBIAPIM-UHFFFAOYSA-M sodium thiocyanate Chemical compound [Na+].[S-]C#N VGTPCRGMBIAPIM-UHFFFAOYSA-M 0.000 claims description 20
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 239000006096 absorbing agent Substances 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 10
- 238000004513 sizing Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 150000003567 thiocyanates Chemical class 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 8
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 7
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 6
- 239000013522 chelant Substances 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 150000007513 acids Chemical class 0.000 claims description 4
- 150000001768 cations Chemical class 0.000 claims description 4
- 229920005610 lignin Polymers 0.000 claims description 4
- ALWXETURCOIGIZ-UHFFFAOYSA-N 1-nitropropylbenzene Chemical compound CCC([N+]([O-])=O)C1=CC=CC=C1 ALWXETURCOIGIZ-UHFFFAOYSA-N 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 230000005764 inhibitory process Effects 0.000 claims description 3
- 150000002892 organic cations Chemical class 0.000 claims description 3
- 150000003254 radicals Chemical class 0.000 claims description 3
- 235000021286 stilbenes Nutrition 0.000 claims description 3
- CLWOHDDTHJOGOJ-UHFFFAOYSA-N 3,6-bis(2-phenylethenyl)benzene-1,2-dicarbonitrile Chemical class C1=CC(C=CC=2C=CC=CC=2)=C(C#N)C(C#N)=C1C=CC1=CC=CC=C1 CLWOHDDTHJOGOJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000011149 active material Substances 0.000 claims description 2
- 150000001767 cationic compounds Chemical class 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims description 2
- 239000007850 fluorescent dye Substances 0.000 claims description 2
- 229910001411 inorganic cation Inorganic materials 0.000 claims description 2
- ZNNZYHKDIALBAK-UHFFFAOYSA-M potassium thiocyanate Chemical compound [K+].[S-]C#N ZNNZYHKDIALBAK-UHFFFAOYSA-M 0.000 claims description 2
- 229940116357 potassium thiocyanate Drugs 0.000 claims description 2
- 150000001629 stilbenes Chemical class 0.000 claims description 2
- 239000011885 synergistic combination Substances 0.000 claims 2
- 239000000123 paper Substances 0.000 description 27
- 239000002655 kraft paper Substances 0.000 description 9
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M thiocyanate group Chemical group [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 7
- 229920002472 Starch Polymers 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 235000019698 starch Nutrition 0.000 description 7
- 239000008107 starch Substances 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 5
- 238000002791 soaking Methods 0.000 description 5
- UZFMOKQJFYMBGY-UHFFFAOYSA-N 4-hydroxy-TEMPO Chemical compound CC1(C)CC(O)CC(C)(C)N1[O] UZFMOKQJFYMBGY-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- -1 peroxyl radicals Chemical class 0.000 description 3
- 239000004262 Ethyl gallate Substances 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- ZJYYHGLJYGJLLN-UHFFFAOYSA-N guanidinium thiocyanate Chemical compound SC#N.NC(N)=N ZJYYHGLJYGJLLN-UHFFFAOYSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000012085 test solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- YGUMVDWOQQJBGA-VAWYXSNFSA-N 5-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]-2-[(e)-2-[4-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]-2-sulfophenyl]ethenyl]benzenesulfonic acid Chemical compound C=1C=C(\C=C\C=2C(=CC(NC=3N=C(N=C(NC=4C=CC=CC=4)N=3)N3CCOCC3)=CC=2)S(O)(=O)=O)C(S(=O)(=O)O)=CC=1NC(N=C(N=1)N2CCOCC2)=NC=1NC1=CC=CC=C1 YGUMVDWOQQJBGA-VAWYXSNFSA-N 0.000 description 1
- PJANXHGTPQOBST-VAWYXSNFSA-N Stilbene Natural products C=1C=CC=CC=1/C=C/C1=CC=CC=C1 PJANXHGTPQOBST-VAWYXSNFSA-N 0.000 description 1
- 101000910954 Xenopus laevis F-actin-capping protein subunit alpha-1 Proteins 0.000 description 1
- FRTNIYVUDIHXPG-UHFFFAOYSA-N acetic acid;ethane-1,2-diamine Chemical compound CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O.NCCN FRTNIYVUDIHXPG-UHFFFAOYSA-N 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 150000008366 benzophenones Chemical class 0.000 description 1
- 150000001565 benzotriazoles Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000006081 fluorescent whitening agent Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 239000000852 hydrogen donor Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002443 hydroxylamines Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- MBKDYNNUVRNNRF-UHFFFAOYSA-N medronic acid Chemical compound OP(O)(=O)CP(O)(O)=O MBKDYNNUVRNNRF-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 229960003330 pentetic acid Drugs 0.000 description 1
- 229940097156 peroxyl Drugs 0.000 description 1
- KHUXNRRPPZOJPT-UHFFFAOYSA-N phenoxy radical Chemical group O=C1C=C[CH]C=C1 KHUXNRRPPZOJPT-UHFFFAOYSA-N 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 230000001443 photoexcitation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000007348 radical reaction Methods 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical compound C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- 150000003573 thiols Chemical class 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
-
- 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
- D21H17/63—Inorganic compounds
-
- 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
- D21H3/00—Paper or cardboard prepared by adding substances to the pulp or to the formed web on the paper-making machine and by applying substances to finished paper or cardboard (on the paper-making machine), also when the intention is to impregnate at least a part of the paper body
-
- 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
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/09—Sulfur-containing compounds
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/30—Luminescent or fluorescent substances, e.g. for optical bleaching
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/302,862 | 2005-12-14 | ||
| US11/302,862 US8092649B2 (en) | 2005-12-14 | 2005-12-14 | Method of decreasing the rate of photoyellowing with thiocyanic acid |
| PCT/US2006/047804 WO2007070654A2 (en) | 2005-12-14 | 2006-12-14 | Method of decreasing the rate of photoyellowing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2633507A1 CA2633507A1 (en) | 2007-06-21 |
| CA2633507C true CA2633507C (en) | 2015-03-31 |
Family
ID=38138107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2633507A Active CA2633507C (en) | 2005-12-14 | 2006-12-14 | Method of decreasing the rate of photoyellowing |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US8092649B2 (enExample) |
| EP (1) | EP1960599A2 (enExample) |
| JP (1) | JP2009520124A (enExample) |
| KR (1) | KR101044354B1 (enExample) |
| CN (1) | CN101326327B (enExample) |
| AR (1) | AR058351A1 (enExample) |
| AU (1) | AU2006326399B2 (enExample) |
| BR (1) | BRPI0620681A2 (enExample) |
| CA (1) | CA2633507C (enExample) |
| NO (1) | NO20082512L (enExample) |
| NZ (1) | NZ568838A (enExample) |
| RU (1) | RU2403332C2 (enExample) |
| TW (1) | TW200728556A (enExample) |
| WO (1) | WO2007070654A2 (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI20085345A7 (fi) * | 2008-04-22 | 2009-10-23 | Kemira Oyj | Menetelmä valon aikaansaaman ligniinipitoisen materiaalin kellertymisen vähentämiseksi |
| PT2288752E (pt) | 2008-06-20 | 2014-05-07 | Int Paper Co | Composição e folha de impressão que apresenta propriedades ópticas melhoradas |
| US9034145B2 (en) | 2013-08-08 | 2015-05-19 | Ecolab Usa Inc. | Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention, wet strength, and dry strength in papermaking process |
| US9303360B2 (en) | 2013-08-08 | 2016-04-05 | Ecolab Usa Inc. | Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking process |
| US9410288B2 (en) | 2013-08-08 | 2016-08-09 | Ecolab Usa Inc. | Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking process |
| US9834730B2 (en) | 2014-01-23 | 2017-12-05 | Ecolab Usa Inc. | Use of emulsion polymers to flocculate solids in organic liquids |
| CA3001717A1 (en) | 2015-10-15 | 2017-04-20 | Ecolab Usa Inc. | Nanocrystalline cellulose and polymer-grafted nanocrystalline cellulose as rheology modifying agents for magnesium oxide and lime slurries |
| CN110997593B (zh) | 2017-07-17 | 2023-01-24 | 埃科莱布美国股份有限公司 | 使浆料的流变性改性的方法 |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3773464A (en) | 1970-06-02 | 1973-11-20 | Gaf Corp | Acid and direct dyes and fluorescent brightener concentrates with thiocyanates and acetylinic alcohol |
| DE2715864A1 (de) * | 1976-04-14 | 1977-10-27 | Ciba Geigy Ag | Verfahren zum optischen aufhellen von papier |
| JPS5540879A (en) * | 1978-09-19 | 1980-03-22 | Takasaki Paper Mfg | Method for preventing yellowing of nylon fiber by corrugated board packaging container |
| JPS5648640A (en) | 1979-09-27 | 1981-05-01 | Olympus Optical Co Ltd | Book carrier conveying device of electrophotographic copier |
| JPH0667671B2 (ja) | 1985-02-01 | 1994-08-31 | 株式会社リコー | 感熱記録材料 |
| SU1714016A1 (ru) * | 1990-05-22 | 1992-02-23 | Центральный научно-исследовательский институт бумаги | Способ обработки волокнистой массы при изготовлении бумаги |
| SU1714013A1 (ru) * | 1990-05-22 | 1992-02-23 | Центральный научно-исследовательский институт бумаги | Способ поверхностей обработки бумаги |
| FI96418C (fi) | 1994-10-07 | 1996-06-25 | Neste Oy | Alkeenisubstituoituja syklisiä karboksyylihappoanhydridejä ja niiden käyttö paperin hydrofobisessa liimauksessa |
| EP0717143A1 (de) * | 1994-12-16 | 1996-06-19 | Lignozym GmbH | Mehrkomponentensystem zum Verändern, Abbau oder Bleichen von Lignin, ligninhaltigen Materialien oder ähnlichen Stoffen sowie Verfahren zu seiner Anwendung |
| EP1000032A1 (en) * | 1997-07-23 | 2000-05-17 | Ciba SC Holding AG | Inhibition of pulp and paper yellowing using nitroxides and other coadditives |
| NZ331438A (en) * | 1997-09-16 | 2000-01-28 | Ciba Sc Holding Ag | A method of increasing the whiteness of paper by using a formulation containing a swellale layered silicate and an optical brightener 4,4-bis-(triazinylamino)-stilbene-2,2-disulphonic acid |
| CN1324419A (zh) * | 1998-10-22 | 2001-11-28 | 西巴特殊化学品控股有限公司 | 采用羟胺和其它共添加剂抑制纸浆和纸泛黄 |
| US6599326B1 (en) * | 1999-01-20 | 2003-07-29 | Ciba Specialty Chemicals Corporation | Inhibition of pulp and paper yellowing using hydroxylamines and other coadditives |
| JP2000273787A (ja) * | 1999-03-25 | 2000-10-03 | Mitsubishi Paper Mills Ltd | 機械パルプ含有紙およびその製造方法 |
| AU759343B2 (en) * | 1999-04-01 | 2003-04-10 | Imerys Pigments, Inc. | Kaolin pigments, their preparation and use |
| US6030443A (en) * | 1999-04-29 | 2000-02-29 | Hercules Incorporated | Paper coating composition with improved optical brightener carriers |
| CN1288086A (zh) * | 1999-09-10 | 2001-03-21 | 中国林业科学研究院林产化学工业研究所 | 抑制高得率漂白纸浆及其配抄产品返黄工艺技术 |
| WO2002097193A1 (en) * | 2001-05-29 | 2002-12-05 | Ciba Specialty Chemicals Holding Inc. | A composition for the fluorescent whitening of paper |
| JP2003266926A (ja) * | 2002-03-18 | 2003-09-25 | Mitsubishi Paper Mills Ltd | インクジェット被記録材 |
| US7270771B2 (en) * | 2002-07-05 | 2007-09-18 | Ciba Specialty Chemicals Corporation | Triazinylaminostilbene disulphonic acid mixtures |
| JP2004299373A (ja) * | 2003-03-19 | 2004-10-28 | Fuji Photo Film Co Ltd | インクジェット記録方法 |
| DE10343047B4 (de) * | 2003-09-16 | 2008-08-07 | Zfb Project-Management Gmbh | Antioxidationsmittel für organisches Material und Verfahren zur Behandlung desselben |
| JP2005186573A (ja) * | 2003-12-26 | 2005-07-14 | Fuji Xerox Co Ltd | インクジェット用及び／又は電子写真用記録用紙、並びにこれを用いた画像記録方法 |
| US7351764B2 (en) * | 2004-03-31 | 2008-04-01 | Nalco Company | Methods to enhance brightness of pulp and optimize use of bleaching chemicals |
| DE102005055541A1 (de) | 2005-11-18 | 2007-05-24 | Basf Ag | Alkenylbernsteinsäureanhydride aus Oligomeren von C4- bis C8-Olefinen und Maleinsäureanhydrid, Verfahren zu ihrer Herstellung und ihre Verwendung |
-
2005
- 2005-12-14 US US11/302,862 patent/US8092649B2/en active Active
-
2006
- 2006-12-14 WO PCT/US2006/047804 patent/WO2007070654A2/en not_active Ceased
- 2006-12-14 KR KR1020087017043A patent/KR101044354B1/ko active Active
- 2006-12-14 AU AU2006326399A patent/AU2006326399B2/en active Active
- 2006-12-14 EP EP06845469A patent/EP1960599A2/en not_active Withdrawn
- 2006-12-14 CA CA2633507A patent/CA2633507C/en active Active
- 2006-12-14 RU RU2008123226/12A patent/RU2403332C2/ru active
- 2006-12-14 BR BRPI0620681-6A patent/BRPI0620681A2/pt not_active IP Right Cessation
- 2006-12-14 TW TW095146866A patent/TW200728556A/zh unknown
- 2006-12-14 CN CN2006800466518A patent/CN101326327B/zh active Active
- 2006-12-14 NZ NZ568838A patent/NZ568838A/en unknown
- 2006-12-14 JP JP2008545826A patent/JP2009520124A/ja not_active Ceased
- 2006-12-14 AR ARP060105527A patent/AR058351A1/es unknown
-
2008
- 2008-05-30 NO NO20082512A patent/NO20082512L/no not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| AR058351A1 (es) | 2008-01-30 |
| CA2633507A1 (en) | 2007-06-21 |
| BRPI0620681A2 (pt) | 2011-11-22 |
| CN101326327A (zh) | 2008-12-17 |
| US20070131373A1 (en) | 2007-06-14 |
| AU2006326399B2 (en) | 2011-02-17 |
| JP2009520124A (ja) | 2009-05-21 |
| WO2007070654A2 (en) | 2007-06-21 |
| CN101326327B (zh) | 2012-09-12 |
| TW200728556A (en) | 2007-08-01 |
| AU2006326399A1 (en) | 2007-06-21 |
| RU2008123226A (ru) | 2010-01-20 |
| NO20082512L (no) | 2008-05-30 |
| US8092649B2 (en) | 2012-01-10 |
| KR20080083152A (ko) | 2008-09-16 |
| KR101044354B1 (ko) | 2011-06-29 |
| NZ568838A (en) | 2010-04-30 |
| RU2403332C2 (ru) | 2010-11-10 |
| EP1960599A2 (en) | 2008-08-27 |
| WO2007070654A3 (en) | 2007-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0561828B1 (en) | Paper and a method of paper manufacture | |
| EP2052109B1 (en) | Improved compositions and processes for paper production | |
| AU739524B2 (en) | Method of whitening lignin-containing pulp during manufacture | |
| FI88525C (fi) | Foerfarande foer ljushetsstabiliserande av blekt lignininnehaollande cellulosamassa | |
| AU8516698A (en) | A method for optically brightening paper | |
| EP1866477B1 (en) | Improved composition and processes for paper production | |
| EP2971350B1 (en) | Processes and compositions for brightness improvement in paper production | |
| CA2633507C (en) | Method of decreasing the rate of photoyellowing | |
| EP1470291B1 (en) | Enhancing brightness and brightness stability of paper containing mechanical pulp | |
| ZA200103422B (en) | Inhibition of pulp and paper yellowing using hydroxylamines and other coadditives. | |
| US20060229393A1 (en) | Compositions and methods for enhancing brightness and brightness stabilization in papermaking | |
| CA2146944C (en) | Method for preventing yellowing of lignocellulosic products | |
| ES2352495B1 (es) | Procedimiento de fabricación de papel con encolado interno mediante un sistema enzima-mediador. | |
| Argyropoulos et al. | Photoyellowing inhibition of bleached high yield pulps using novel water‐soluble UV screens | |
| US20030121630A1 (en) | Inhibition of yellowing in papers | |
| WO2001079605A2 (en) | Inhibition of yellowing in papers | |
| JP2009524747A (ja) | 蛍光増白紙の製造方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |