DE59005979D1 - Process for fixing contaminants in papermaking. - Google Patents
Process for fixing contaminants in papermaking.Info
- Publication number
- DE59005979D1 DE59005979D1 DE59005979T DE59005979T DE59005979D1 DE 59005979 D1 DE59005979 D1 DE 59005979D1 DE 59005979 T DE59005979 T DE 59005979T DE 59005979 T DE59005979 T DE 59005979T DE 59005979 D1 DE59005979 D1 DE 59005979D1
- Authority
- DE
- Germany
- Prior art keywords
- fixing
- weight
- papermaking
- foreign substances
- acid
- 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.)
- Expired - Fee Related
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
- D21H17/34—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
- 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
- D21H21/02—Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Surgical Instruments (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a process for fixing foreign substances in papermaking, wherein the agents used for fixing the foreign substances are polymers, consisting of cationic groups, of 50 to 100% by weight of quaternised dimethylaminopropylacrylamide or dimethylaminopropylmethacrylamide and 0 to 50% by weight of acrylamide, acrylic acid, methacrylic acid or acrylamidomethylpropanesulphonic acid, which have an intrinsic viscosity of less than 150 ml/g. The fixing agent is added to the pulp run and/or to the circulating water in quantities of up to 1% by weight relative to the dry weight of the paper produced.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3905049A DE3905049A1 (en) | 1989-02-18 | 1989-02-18 | METHOD OF DEXIFICATION OF MIXTURES IN PAPER MANUFACTURE |
Publications (1)
Publication Number | Publication Date |
---|---|
DE59005979D1 true DE59005979D1 (en) | 1994-07-14 |
Family
ID=6374441
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3905049A Withdrawn DE3905049A1 (en) | 1989-02-18 | 1989-02-18 | METHOD OF DEXIFICATION OF MIXTURES IN PAPER MANUFACTURE |
DE59005979T Expired - Fee Related DE59005979D1 (en) | 1989-02-18 | 1990-02-13 | Process for fixing contaminants in papermaking. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3905049A Withdrawn DE3905049A1 (en) | 1989-02-18 | 1989-02-18 | METHOD OF DEXIFICATION OF MIXTURES IN PAPER MANUFACTURE |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0384268B1 (en) |
JP (1) | JP2854072B2 (en) |
AT (1) | ATE106964T1 (en) |
AU (1) | AU634208B2 (en) |
CA (1) | CA2010189C (en) |
DE (2) | DE3905049A1 (en) |
DK (1) | DK0384268T3 (en) |
ES (1) | ES2055181T3 (en) |
FI (1) | FI100117B (en) |
HU (1) | HUT53165A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991015260A1 (en) * | 1990-03-30 | 1991-10-17 | Alza Corporation | Device and method for iontophoretic drug delivery |
DE4409580A1 (en) * | 1994-03-21 | 1995-09-28 | Bayer Ag | Process for fixing contaminants in papermaking |
JP4594656B2 (en) * | 2004-06-10 | 2010-12-08 | 油化産業株式会社 | Pitch control agent |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7308872A (en) * | 1972-07-12 | 1974-01-15 | ||
US4190491A (en) * | 1976-08-02 | 1980-02-26 | Rohm And Haas Company | Process for controlling pitch in papermaking |
ZA774417B (en) * | 1976-08-02 | 1978-08-30 | Rohm & Haas | Method of controlling pitch |
JPS5916563B2 (en) * | 1976-11-04 | 1984-04-16 | 日東化学工業株式会社 | Production method of water-soluble cationic polymer |
AU8040082A (en) * | 1981-02-17 | 1982-08-26 | Calgon Corporation | Reducing deposition of resins in paper production |
AU8039982A (en) * | 1981-02-17 | 1982-08-26 | Calgon Corporation | Reducing deposition of resins in paper production |
US4391932A (en) * | 1982-01-22 | 1983-07-05 | Nalco Chemical Company | Polycationic latices of dimethylaminopropyl-acrylamide, and their use of as sludge dewatering agents and/or paper retention aids |
US4444971A (en) * | 1983-07-25 | 1984-04-24 | Texaco Inc. | Acrylic and methacrylic quaternary chloromethyl ammonium chloride cationic monomers and polymers thereof |
DE3544909A1 (en) * | 1985-12-19 | 1987-06-25 | Stockhausen Chem Fab Gmbh | ACRYLAMIDE AND DIMETHYLAMINOPROPYLACRYLAMIDE COPOLYMERS AS FLOCCANTS AND METHOD FOR THE DRAINAGE OF CLARIFYING SLUDGE USING THESE FLOCCANTS |
DE3620065A1 (en) * | 1986-06-14 | 1987-12-17 | Basf Ag | METHOD FOR PRODUCING PAPER, CARDBOARD AND CARDBOARD |
DE3627407C2 (en) * | 1986-08-13 | 1994-05-19 | Steinbeis Temming Papier Gmbh | Process for cleaning water circuits in pulp and paper production |
DE3704173A1 (en) * | 1987-02-11 | 1988-08-25 | Wolff Walsrode Ag | NEW MEANS FOR PAPER PRODUCTION |
JPS6461595A (en) * | 1987-08-28 | 1989-03-08 | Sanyo Chemical Ind Ltd | Papermaking filterability enhancer |
-
1989
- 1989-02-18 DE DE3905049A patent/DE3905049A1/en not_active Withdrawn
-
1990
- 1990-02-13 EP EP90102772A patent/EP0384268B1/en not_active Expired - Lifetime
- 1990-02-13 DK DK90102772.2T patent/DK0384268T3/en active
- 1990-02-13 ES ES90102772T patent/ES2055181T3/en not_active Expired - Lifetime
- 1990-02-13 DE DE59005979T patent/DE59005979D1/en not_active Expired - Fee Related
- 1990-02-13 AT AT90102772T patent/ATE106964T1/en not_active IP Right Cessation
- 1990-02-15 CA CA002010189A patent/CA2010189C/en not_active Expired - Fee Related
- 1990-02-16 AU AU49815/90A patent/AU634208B2/en not_active Ceased
- 1990-02-16 FI FI900785A patent/FI100117B/en active IP Right Grant
- 1990-02-16 HU HU90837A patent/HUT53165A/en unknown
- 1990-02-19 JP JP2036425A patent/JP2854072B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0384268B1 (en) | 1994-06-08 |
CA2010189A1 (en) | 1990-08-18 |
HU900837D0 (en) | 1990-05-28 |
AU4981590A (en) | 1990-08-23 |
CA2010189C (en) | 2001-04-17 |
AU634208B2 (en) | 1993-02-18 |
JPH02259195A (en) | 1990-10-19 |
FI100117B (en) | 1997-09-30 |
ATE106964T1 (en) | 1994-06-15 |
DE3905049A1 (en) | 1990-08-23 |
EP0384268A1 (en) | 1990-08-29 |
ES2055181T3 (en) | 1994-08-16 |
DK0384268T3 (en) | 1994-10-03 |
JP2854072B2 (en) | 1999-02-03 |
HUT53165A (en) | 1990-09-28 |
FI900785A0 (en) | 1990-02-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC (N |
|
8328 | Change in the person/name/address of the agent |
Representative=s name: BOEHMERT & BOEHMERT, 28209 BREMEN |
|
8339 | Ceased/non-payment of the annual fee |