FI941815A0 - Sätt att motverka eftergulning hos lignocellulosahaltiga produkter - Google Patents
Sätt att motverka eftergulning hos lignocellulosahaltiga produkterInfo
- Publication number
- FI941815A0 FI941815A0 FI941815A FI941815A FI941815A0 FI 941815 A0 FI941815 A0 FI 941815A0 FI 941815 A FI941815 A FI 941815A FI 941815 A FI941815 A FI 941815A FI 941815 A0 FI941815 A0 FI 941815A0
- Authority
- FI
- Finland
- Prior art keywords
- yellowing
- way
- prevent post
- lignocellulosic products
- lignocellulosic
- Prior art date
Links
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
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/53—Polyethers; Polyesters
-
- 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
- D21H21/143—Agents preventing ageing of paper, e.g. radiation absorbing substances
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI941815A FI94973C (sv) | 1994-04-20 | 1994-04-20 | Sätt att motverka eftergulning hos lignocellulosahaltiga produkter |
CA002146944A CA2146944C (en) | 1994-04-20 | 1995-04-12 | Method for preventing yellowing of lignocellulosic products |
SE9501410A SE513467C2 (sv) | 1994-04-20 | 1995-04-18 | Sätt att motverka eftergulning hos lignocellulosahaltiga produkter genom att använda polytetrahydrofuran |
DE19513578A DE19513578A1 (de) | 1994-04-20 | 1995-04-19 | Verfahren zur Verhinderung des Vergilbens von lignozellulösen Produkten |
FR9504751A FR2719060B1 (fr) | 1994-04-20 | 1995-04-20 | Méthode destinée à protéger les produits lignocellulosiques contre le jaunissement. |
US08/425,396 US5658431A (en) | 1994-04-20 | 1995-04-20 | Method for preventing yellowing of lignocellulosic products |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI941815A FI94973C (sv) | 1994-04-20 | 1994-04-20 | Sätt att motverka eftergulning hos lignocellulosahaltiga produkter |
FI941815 | 1994-04-20 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI941815A0 true FI941815A0 (sv) | 1994-04-20 |
FI94973B FI94973B (sv) | 1995-08-15 |
FI94973C FI94973C (sv) | 1995-11-27 |
Family
ID=8540559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI941815A FI94973C (sv) | 1994-04-20 | 1994-04-20 | Sätt att motverka eftergulning hos lignocellulosahaltiga produkter |
Country Status (6)
Country | Link |
---|---|
US (1) | US5658431A (sv) |
CA (1) | CA2146944C (sv) |
DE (1) | DE19513578A1 (sv) |
FI (1) | FI94973C (sv) |
FR (1) | FR2719060B1 (sv) |
SE (1) | SE513467C2 (sv) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5928473A (en) * | 1997-01-15 | 1999-07-27 | University Of Ottawa | Inhibition of photo-yellowing in paper |
RU2223985C2 (ru) | 1997-07-23 | 2004-02-20 | Циба Спешиалти Кемикалз Холдинг Инк. | Ингибирование пожелтения целлюлозы и бумаги с использованием нитроксидов и других совместно вводимых добавок |
US6447644B1 (en) | 1997-07-23 | 2002-09-10 | Ciba Specialty Chemicals Corporation | Inhibition of pulp and paper yellowing using nitroxides, hydroxylamines and other coadditives |
EP1203055B1 (de) * | 1999-08-13 | 2003-11-05 | Basf Aktiengesellschaft | Farbmittelzubereitungen |
US6527914B1 (en) * | 2002-01-30 | 2003-03-04 | Ondeo Nalco Company | Method of enhancing brightness and brightness stability of paper made with mechanical pulp |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE322412B (sv) * | 1968-09-10 | 1970-04-06 | Mo Och Domsjoe Ab | |
CA1098633A (en) * | 1978-12-14 | 1981-03-31 | Elsa S. Polatajko-Lobos | Paper coating composition |
-
1994
- 1994-04-20 FI FI941815A patent/FI94973C/sv active IP Right Grant
-
1995
- 1995-04-12 CA CA002146944A patent/CA2146944C/en not_active Expired - Fee Related
- 1995-04-18 SE SE9501410A patent/SE513467C2/sv not_active IP Right Cessation
- 1995-04-19 DE DE19513578A patent/DE19513578A1/de not_active Ceased
- 1995-04-20 US US08/425,396 patent/US5658431A/en not_active Expired - Lifetime
- 1995-04-20 FR FR9504751A patent/FR2719060B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FI94973C (sv) | 1995-11-27 |
FI94973B (sv) | 1995-08-15 |
FR2719060A1 (fr) | 1995-10-27 |
SE9501410D0 (sv) | 1995-04-18 |
FR2719060B1 (fr) | 1999-11-12 |
SE513467C2 (sv) | 2000-09-18 |
US5658431A (en) | 1997-08-19 |
DE19513578A1 (de) | 1995-10-26 |
CA2146944A1 (en) | 1995-10-21 |
SE9501410L (sv) | 1995-10-21 |
CA2146944C (en) | 2005-12-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Owner name: OY KESKUSLABORATORIO - |
|
BB | Publication of examined application |