EP0355816A3 - Colloidal alumina as a paper retention aid - Google Patents
Colloidal alumina as a paper retention aid Download PDFInfo
- Publication number
- EP0355816A3 EP0355816A3 EP19890115581 EP89115581A EP0355816A3 EP 0355816 A3 EP0355816 A3 EP 0355816A3 EP 19890115581 EP19890115581 EP 19890115581 EP 89115581 A EP89115581 A EP 89115581A EP 0355816 A3 EP0355816 A3 EP 0355816A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- colloidal alumina
- retention aid
- added
- furnish
- paper retention
- 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.)
- Withdrawn
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
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—Oxides, hydroxides or carbonates
-
- 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
- D21H17/42—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups anionic
-
- 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
Abstract
a colloidal alumina sol having a positive surface charge and a colloidal alumina concentration in the range between 0.1-1%, the colloidal alumina having a particle size in the range between 1-50 nanometers and is added to the furnish in an amount between about 0.025-0.5% by weight; and
an anionic polymer flocculant which is added to the furnish in an amount between about 0.01-0.1% by weight.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23681688A | 1988-08-26 | 1988-08-26 | |
US236816 | 1994-05-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0355816A2 EP0355816A2 (en) | 1990-02-28 |
EP0355816A3 true EP0355816A3 (en) | 1992-09-09 |
Family
ID=22891084
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19890115581 Withdrawn EP0355816A3 (en) | 1988-08-26 | 1989-08-23 | Colloidal alumina as a paper retention aid |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0355816A3 (en) |
JP (1) | JPH02259196A (en) |
BR (1) | BR8903325A (en) |
DE (1) | DE355816T1 (en) |
ES (1) | ES2014959A4 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE373141T1 (en) * | 2000-05-17 | 2007-09-15 | Buckman Labor Inc | PAPER FIBER AND FLOCCULANTS CONTAINING AN ACID AQUEOUS ALUMINUM OXIDE SOL |
GB2366576A (en) * | 2000-09-07 | 2002-03-13 | Ass Octel | Flocculent system |
US9017649B2 (en) * | 2006-03-27 | 2015-04-28 | Nalco Company | Method of stabilizing silica-containing anionic microparticles in hard water |
DE102006051661A1 (en) | 2006-11-02 | 2008-05-08 | Evonik Degussa Gmbh | Preparation for the production of refractory materials |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57205597A (en) * | 1981-06-09 | 1982-12-16 | Shikoku Paper Mfg | Production of internally sized paper |
JPS5891897A (en) * | 1981-11-25 | 1983-05-31 | 神崎製紙株式会社 | Papermaking method |
WO1986000100A1 (en) * | 1984-06-07 | 1986-01-03 | Eka Ab | Papermaking process |
US4643801A (en) * | 1986-02-24 | 1987-02-17 | Nalco Chemical Company | Papermaking aid |
JPS62125096A (en) * | 1985-11-21 | 1987-06-06 | 星光化学工業株式会社 | Method for enhancing yield of filler |
US4798653A (en) * | 1988-03-08 | 1989-01-17 | Procomp, Inc. | Retention and drainage aid for papermaking |
JPH01183598A (en) * | 1988-01-18 | 1989-07-21 | Showa Denko Kk | Production of paper and paperboard |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62206099A (en) * | 1986-03-05 | 1987-09-10 | 星光化学工業株式会社 | Production of high compression strength paper |
JP2729792B2 (en) * | 1987-09-24 | 1998-03-18 | 日本ピー・エム・シー株式会社 | Paper manufacturing method |
-
1989
- 1989-07-06 BR BR8903325A patent/BR8903325A/en unknown
- 1989-08-23 DE DE1989115581 patent/DE355816T1/en active Pending
- 1989-08-23 EP EP19890115581 patent/EP0355816A3/en not_active Withdrawn
- 1989-08-23 ES ES89115581T patent/ES2014959A4/en active Pending
- 1989-08-25 JP JP21759889A patent/JPH02259196A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57205597A (en) * | 1981-06-09 | 1982-12-16 | Shikoku Paper Mfg | Production of internally sized paper |
JPS5891897A (en) * | 1981-11-25 | 1983-05-31 | 神崎製紙株式会社 | Papermaking method |
WO1986000100A1 (en) * | 1984-06-07 | 1986-01-03 | Eka Ab | Papermaking process |
JPS62125096A (en) * | 1985-11-21 | 1987-06-06 | 星光化学工業株式会社 | Method for enhancing yield of filler |
US4643801A (en) * | 1986-02-24 | 1987-02-17 | Nalco Chemical Company | Papermaking aid |
JPH01183598A (en) * | 1988-01-18 | 1989-07-21 | Showa Denko Kk | Production of paper and paperboard |
US4798653A (en) * | 1988-03-08 | 1989-01-17 | Procomp, Inc. | Retention and drainage aid for papermaking |
Non-Patent Citations (5)
Title |
---|
DATABASE WPIL, no. 87-195623, Derwent Publications Ltd, London, GB; & JP-A-62 125 096 (SEIKO CHEM IND. K.K. et al.), The whole article. * |
TAPPI, vol 61, no. 11, November 1978, pages 111-114, Atlanta, US; B. ALINCE et al.: "Colloidal aspects of the retention of positively charged additives", The whole article. * |
WORLD PATENTS INDEX LATEST, Week 8305, Derwent Publ. Ltd., London, GB, AN-83-10668k; & JP-A-57 205 597 (SHIKOKU SEISHI K.K.) 16-12-1982, Abstract. * |
WORLD PATENTS INDEX LATEST, Week 8327, Derwent Publ. Ltd, LONDON, GB, AN-83-703588; & JP-A-58 091 897 (KANZANI PAPER MFG K.K. et al.) 31-05-1983, Abstract. * |
WORLD PATENTS INDEX LATEST, Week 8935, Derwent Publ. Ltd, London, GB, AN-89-252471; & JP-A-01 183 598 (SHOWA DENKO K.K.) 21-07-1989, Abstract. * |
Also Published As
Publication number | Publication date |
---|---|
BR8903325A (en) | 1990-03-13 |
DE355816T1 (en) | 1990-09-27 |
EP0355816A2 (en) | 1990-02-28 |
JPH02259196A (en) | 1990-10-19 |
ES2014959A4 (en) | 1990-08-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
|
ITCL | It: translation for ep claims filed |
Representative=s name: STUDIO BIANCHETTI |
|
TCNL | Nl: translation of patent claims filed | ||
EL | Fr: translation of claims filed | ||
DET | De: translation of patent claims | ||
17P | Request for examination filed |
Effective date: 19901228 |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19930310 |