NO168843C - Fremgangsmaate for aa nedsette mengden av fritt formaldehydved fremstilling av papir, samt middel for anvendelse av fremgangsmaaten - Google Patents
Fremgangsmaate for aa nedsette mengden av fritt formaldehydved fremstilling av papir, samt middel for anvendelse av fremgangsmaatenInfo
- Publication number
- NO168843C NO168843C NO860558A NO860558A NO168843C NO 168843 C NO168843 C NO 168843C NO 860558 A NO860558 A NO 860558A NO 860558 A NO860558 A NO 860558A NO 168843 C NO168843 C NO 168843C
- Authority
- NO
- Norway
- Prior art keywords
- procedure
- headwork
- reduce
- manufacturing paper
- sulphite
- 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
- D21H17/63—Inorganic compounds
- D21H17/66—Salts, e.g. alums
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Steroid Compounds (AREA)
- Luminescent Compositions (AREA)
- Golf Clubs (AREA)
- Toys (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Making Paper Articles (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8500715A SE8500715L (sv) | 1985-02-15 | 1985-02-15 | Sett vid pappersframstellning |
Publications (3)
Publication Number | Publication Date |
---|---|
NO860558L NO860558L (no) | 1986-08-18 |
NO168843B NO168843B (no) | 1991-12-30 |
NO168843C true NO168843C (no) | 1992-04-08 |
Family
ID=20359131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO860558A NO168843C (no) | 1985-02-15 | 1986-02-14 | Fremgangsmaate for aa nedsette mengden av fritt formaldehydved fremstilling av papir, samt middel for anvendelse av fremgangsmaaten |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0192623B1 (sv) |
AT (1) | ATE57965T1 (sv) |
DE (1) | DE3675231D1 (sv) |
ES (1) | ES8801401A1 (sv) |
FI (1) | FI84635C (sv) |
NO (1) | NO168843C (sv) |
SE (1) | SE8500715L (sv) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5326479A (en) * | 1993-09-01 | 1994-07-05 | Nalco Chemical Company | Treatment of pulp and paper wastewater with reducing agent and a polymer for color removal |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT947732B (it) * | 1971-02-27 | 1973-05-30 | Asahi Chemical Ind | Processo per il trattamento delle aldeidi |
FR2306944A1 (fr) * | 1975-04-09 | 1976-11-05 | Speichim | Procede de traitement d'eaux residuaires formophenoliques |
US4409375A (en) * | 1982-02-11 | 1983-10-11 | Champion International Corporation | Method for scavenging aldehydes |
DE3222195A1 (de) * | 1982-06-12 | 1983-12-15 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von spanholzwerkstoffen mit verringerter formaldehydemission |
-
1985
- 1985-02-15 SE SE8500715A patent/SE8500715L/sv not_active Application Discontinuation
-
1986
- 1986-02-07 EP EP86850039A patent/EP0192623B1/en not_active Expired - Lifetime
- 1986-02-07 DE DE8686850039T patent/DE3675231D1/de not_active Expired - Fee Related
- 1986-02-07 AT AT86850039T patent/ATE57965T1/de not_active IP Right Cessation
- 1986-02-12 FI FI860650A patent/FI84635C/sv not_active IP Right Cessation
- 1986-02-14 ES ES552021A patent/ES8801401A1/es not_active Expired
- 1986-02-14 NO NO860558A patent/NO168843C/no not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE8500715D0 (sv) | 1985-02-15 |
NO860558L (no) | 1986-08-18 |
EP0192623B1 (en) | 1990-10-31 |
FI84635C (sv) | 1993-07-28 |
EP0192623A1 (en) | 1986-08-27 |
ES8801401A1 (es) | 1987-12-16 |
SE8500715L (sv) | 1986-08-16 |
ES552021A0 (es) | 1987-12-16 |
FI860650A0 (fi) | 1986-02-12 |
ATE57965T1 (de) | 1990-11-15 |
FI84635B (fi) | 1991-09-13 |
DE3675231D1 (de) | 1990-12-06 |
FI860650A (fi) | 1986-08-16 |
NO168843B (no) | 1991-12-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE8003948L (sv) | Forfarande for papperstillverkning | |
BR8606473A (pt) | Processo para a cationizacao seca de amido | |
DE68915542D1 (de) | Wasserhalt- und drainagemittel bei der papierherstellung. | |
KR850006135A (ko) | 안 과 액 제 | |
EP0029003A3 (en) | Salts of cationic brighteners, their preparation and their use on organic materials as well as their concentrated aqueous solutions | |
FI874292A (fi) | Foerfarande foer framstaellning av borsyrasuspensioner. | |
KR890012887A (ko) | 활성탄의 제조방법 | |
SE8700058D0 (sv) | Papperstillverkning | |
FI862646A (fi) | Hydrofoberingsmedel foer cellulosafibrer, saett att framstaella detta medel samt anvaendningen av medlet foer maeldhydrofobering. | |
ATE114325T1 (de) | Herstellung von polykohlenwasserstoffaluminoxanen. | |
NO168843C (no) | Fremgangsmaate for aa nedsette mengden av fritt formaldehydved fremstilling av papir, samt middel for anvendelse av fremgangsmaaten | |
BR8505582A (pt) | Processo para a preparacao de benzotiazolsulfenamidas | |
DE3667806D1 (de) | Waessrige, alkalische, silikathaltige zusammensetzung zum bleichen von cellulosehaltigen fasermaterialien in gegenwart von perverbindungen. | |
ATE73184T1 (de) | Papierherstellungsverfahren. | |
BR8900259A (pt) | Processo para fabricacao de celulose semialvejada,tipo"kraft" | |
KR830006286A (ko) | 빈카민 사카리내이트의 제조방법 | |
RO70306A (ro) | Procedeu de obtinere a unor solutii apoase de rasini melamino-formaldehidice eterificate | |
ATE53202T1 (de) | Verfahren zur herstellung einer waesserigen loesung vom natriumsalz des methionins. | |
ES2034659T3 (es) | Suspension acuosa estable de silico-aluminatos. | |
DK561481A (da) | Fremgangsmaade til fremstilling af en anionbytter samt anvendelse heraf | |
DE59006292D1 (de) | Wässrige Lösungen von Natriumsalzen des Trimercapto-s-triazins, deren Herstellung und Verwendung. | |
DE3068259D1 (en) | Directly injectable aqueous solutions of the alkali salts of canrenoic acid and of furosemide, and process for their production | |
ATE51632T1 (de) | Lagerstabile konzentrierte waessrige loesungen von melamin-formaldehydkondensaten, verfahren zu deren herstellung, sowie deren verwendung. | |
ES530970A0 (es) | Procedimiento para impedir la gelificacion de soluciones acuosas concentradas de fotoactivador | |
GB539331A (en) | Improvements in or relating to composite board material |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM1K | Lapsed by not paying the annual fees |
Free format text: LAPSED IN AUGUST 2002 |