FI941815A0 - Tapa estää lignoselluloosapitoisten tuotteiden jälkikellertyminen - Google Patents
Tapa estää lignoselluloosapitoisten tuotteiden jälkikellertyminenInfo
- 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 (fi) | 1994-04-20 | 1994-04-20 | Tapa estää lignoselluloosapitoisten tuotteiden jälkikellertyminen |
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 |
---|---|---|---|
FI941815 | 1994-04-20 | ||
FI941815A FI94973C (fi) | 1994-04-20 | 1994-04-20 | Tapa estää lignoselluloosapitoisten tuotteiden jälkikellertyminen |
Publications (3)
Publication Number | Publication Date |
---|---|
FI941815A0 true FI941815A0 (fi) | 1994-04-20 |
FI94973B FI94973B (fi) | 1995-08-15 |
FI94973C FI94973C (fi) | 1995-11-27 |
Family
ID=8540559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI941815A FI94973C (fi) | 1994-04-20 | 1994-04-20 | Tapa estää lignoselluloosapitoisten tuotteiden jälkikellertyminen |
Country Status (6)
Country | Link |
---|---|
US (1) | US5658431A (fi) |
CA (1) | CA2146944C (fi) |
DE (1) | DE19513578A1 (fi) |
FI (1) | FI94973C (fi) |
FR (1) | FR2719060B1 (fi) |
SE (1) | SE513467C2 (fi) |
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 |
US6447644B1 (en) | 1997-07-23 | 2002-09-10 | Ciba Specialty Chemicals Corporation | Inhibition of pulp and paper yellowing using nitroxides, hydroxylamines and other coadditives |
JP2001510881A (ja) | 1997-07-23 | 2001-08-07 | チバ スペシャルティ ケミカルズ ホールディング インコーポレーテッド | ニトロキシドおよび他の補助添加剤を使用するパルプおよび紙の黄色化の抑制 |
JP4118563B2 (ja) | 1999-08-13 | 2008-07-16 | ビーエーエスエフ ソシエタス・ヨーロピア | 着色剤調製物 |
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 (fi) * | 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/fi 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 FR FR9504751A patent/FR2719060B1/fr not_active Expired - Fee Related
- 1995-04-20 US US08/425,396 patent/US5658431A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2719060B1 (fr) | 1999-11-12 |
FR2719060A1 (fr) | 1995-10-27 |
SE9501410L (sv) | 1995-10-21 |
SE513467C2 (sv) | 2000-09-18 |
CA2146944A1 (en) | 1995-10-21 |
CA2146944C (en) | 2005-12-06 |
DE19513578A1 (de) | 1995-10-26 |
FI94973B (fi) | 1995-08-15 |
SE9501410D0 (sv) | 1995-04-18 |
FI94973C (fi) | 1995-11-27 |
US5658431A (en) | 1997-08-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Owner name: OY KESKUSLABORATORIO - |
|
BB | Publication of examined application |