CA1329683C - Processes for the production of paper and paper board - Google Patents
Processes for the production of paper and paper boardInfo
- Publication number
- CA1329683C CA1329683C CA 597426 CA597426A CA1329683C CA 1329683 C CA1329683 C CA 1329683C CA 597426 CA597426 CA 597426 CA 597426 A CA597426 A CA 597426A CA 1329683 C CA1329683 C CA 1329683C
- Authority
- CA
- Canada
- Prior art keywords
- polymer
- paper
- suspension
- retention
- shear
- 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 - Lifetime
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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
- D21H23/06—Controlling the addition
- D21H23/14—Controlling the addition by selecting point of addition or time of contact between components
- D21H23/16—Addition before or during pulp beating or refining
-
- 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
-
- 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
- D21H21/06—Paper forming aids
- D21H21/10—Retention agents or drainage improvers
Landscapes
- Paper (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8809588.0 | 1988-04-22 | ||
GB888809588A GB8809588D0 (en) | 1988-04-22 | 1988-04-22 | Processes for the production of paper & paper board |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1329683C true CA1329683C (en) | 1994-05-24 |
Family
ID=10635686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 597426 Expired - Lifetime CA1329683C (en) | 1988-04-22 | 1989-04-21 | Processes for the production of paper and paper board |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0366764B1 (de) |
JP (1) | JPH02504049A (de) |
CA (1) | CA1329683C (de) |
DE (1) | DE68910639T2 (de) |
FI (1) | FI95827C (de) |
GB (1) | GB8809588D0 (de) |
NO (1) | NO175648C (de) |
WO (1) | WO1989010447A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5110878A (en) * | 1991-05-14 | 1992-05-05 | E. I. Du Pont De Nemours And Company | Dry polyamide-epichlorohydrin resin power for strengthening wet paper |
US5571380A (en) * | 1992-01-08 | 1996-11-05 | Nalco Chemical Company | Papermaking process with improved retention and maintained formation |
CN103608516B (zh) * | 2011-06-20 | 2016-11-16 | 巴斯夫欧洲公司 | 生产纸和纸板 |
US9103071B2 (en) | 2011-06-20 | 2015-08-11 | Basf Se | Manufacture of paper and paperboard |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2345922A1 (de) * | 1973-09-12 | 1975-04-17 | Bayer Ag | Papierhilfsmittel |
FI272374A (de) * | 1973-10-01 | 1975-04-02 | Calgon Corp | |
DE3677046D1 (de) * | 1985-04-25 | 1991-02-28 | Allied Colloids Ltd | Flockungsverfahren. |
GB8602121D0 (en) * | 1986-01-29 | 1986-03-05 | Allied Colloids Ltd | Paper & paper board |
-
1988
- 1988-04-22 GB GB888809588A patent/GB8809588D0/en active Pending
-
1989
- 1989-04-21 CA CA 597426 patent/CA1329683C/en not_active Expired - Lifetime
- 1989-04-24 EP EP19890905452 patent/EP0366764B1/de not_active Revoked
- 1989-04-24 WO PCT/GB1989/000433 patent/WO1989010447A1/en not_active Application Discontinuation
- 1989-04-24 JP JP50513189A patent/JPH02504049A/ja active Pending
- 1989-04-24 DE DE1989610639 patent/DE68910639T2/de not_active Revoked
- 1989-12-13 FI FI895957A patent/FI95827C/fi active IP Right Grant
- 1989-12-21 NO NO895166A patent/NO175648C/no unknown
Also Published As
Publication number | Publication date |
---|---|
NO175648C (no) | 1994-11-09 |
JPH02504049A (ja) | 1990-11-22 |
DE68910639D1 (de) | 1993-12-16 |
FI95827B (fi) | 1995-12-15 |
FI895957A0 (fi) | 1989-12-13 |
FI95827C (fi) | 1996-03-25 |
GB8809588D0 (en) | 1988-05-25 |
WO1989010447A1 (en) | 1989-11-02 |
EP0366764B1 (de) | 1993-11-10 |
DE68910639T2 (de) | 1994-02-24 |
EP0366764A1 (de) | 1990-05-09 |
NO175648B (de) | 1994-08-01 |
NO895166D0 (no) | 1989-12-21 |
NO895166L (no) | 1989-12-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |
Effective date: 20110524 |