GB1104567A - Polymeric dispersing agents - Google Patents
Polymeric dispersing agentsInfo
- Publication number
- GB1104567A GB1104567A GB8373/66A GB837366A GB1104567A GB 1104567 A GB1104567 A GB 1104567A GB 8373/66 A GB8373/66 A GB 8373/66A GB 837366 A GB837366 A GB 837366A GB 1104567 A GB1104567 A GB 1104567A
- Authority
- GB
- United Kingdom
- Prior art keywords
- molecular weight
- polyacrylonitrile
- water
- units
- polymer
- 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
Links
- 239000002270 dispersing agent Substances 0.000 title abstract 4
- 229920002239 polyacrylonitrile Polymers 0.000 abstract 4
- 229920000642 polymer Polymers 0.000 abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 125000003368 amide group Chemical group 0.000 abstract 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 abstract 2
- 238000007334 copolymerization reaction Methods 0.000 abstract 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract 1
- 239000005995 Aluminium silicate Substances 0.000 abstract 1
- 239000004160 Ammonium persulphate Substances 0.000 abstract 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 abstract 1
- 235000012211 aluminium silicate Nutrition 0.000 abstract 1
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 abstract 1
- 235000019395 ammonium persulphate Nutrition 0.000 abstract 1
- 239000012736 aqueous medium Substances 0.000 abstract 1
- 239000007900 aqueous suspension Substances 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 230000003311 flocculating effect Effects 0.000 abstract 1
- 230000003301 hydrolyzing effect Effects 0.000 abstract 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 abstract 1
- 239000004289 sodium hydrogen sulphite Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/22—Amides or hydrazides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/16—Amines or polyamines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
A dispersing agent substantially free from flocculating properties comprises a water-soluble hydrolysed polyacrylonitrile (or a polymer produced by a copolymerization reaction and having substantially the same structure as the hydrolysed polyacrylonitrile) having a molecular weight of from 5000 to 40,000 and having from 20-30% amide units and 70-80% carboxyl units. The polymer is preferably prepared by hydrolysing polyacrylonitrile of appropriate molecular weight with NaOH in an aqueous medium at elevated temperature, e.g. between 50-100 DEG C. In an example, the parent polymer is obtained by polymerizing acrylonitrile in water using an ammonium persulphate/sodium bisulphite catalyst.ALSO:A dispersing agent suitable for keeping particles of insoluble substances suspended in aqueous systems to prevent fouling of equipment or surfaces comprises a water-soluble hydrolysed polyacrylonitrile (or an equivalent polymer produced by copolymerization) having a molecular weight from 5000 to 40,000 and having from 20-30% amide units and 70-80% carboxyl units. An example illustrates the effectiveness of the dispersant in aqueous suspensions of kaolin and g -iron oxide (Fe2O3).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US44254465A | 1965-03-24 | 1965-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1104567A true GB1104567A (en) | 1968-02-28 |
Family
ID=23757209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8373/66A Expired GB1104567A (en) | 1965-03-24 | 1966-02-25 | Polymeric dispersing agents |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1719433A1 (en) |
| ES (1) | ES324201A1 (en) |
| FR (1) | FR1499131A (en) |
| GB (1) | GB1104567A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0047381A1 (en) * | 1980-07-31 | 1982-03-17 | Wolff Walsrode Aktiengesellschaft | Process for the manufacture of water-soluble hydrolysis products of polyacrylonitrile, and use thereof as drilling fluids |
| EP0670335A1 (en) * | 1994-03-03 | 1995-09-06 | Bayer Ag | Superabsorbent polymers |
| EP0697416A1 (en) * | 1994-08-18 | 1996-02-21 | Bayer Ag | Superabsorbent polymers from crosslinked poly(acrylonitrile) emulsions |
| WO2006063957A1 (en) * | 2004-12-16 | 2006-06-22 | Ciba Specialty Chemicals Holding Inc. | Stabilized organic materials containing fillers |
| CN113882153A (en) * | 2021-11-02 | 2022-01-04 | 中国船舶重工集团公司第七一八研究所 | Method for preparing carboxylic acid fiber by catalytic hydrolysis of polyacrylonitrile |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5218039A (en) * | 1987-04-28 | 1993-06-08 | Kingston Technologies, Inc. | Pan emulsion |
-
1966
- 1966-02-25 GB GB8373/66A patent/GB1104567A/en not_active Expired
- 1966-03-09 DE DE19661719433 patent/DE1719433A1/en active Pending
- 1966-03-15 ES ES0324201A patent/ES324201A1/en not_active Expired
- 1966-03-24 FR FR54865A patent/FR1499131A/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0047381A1 (en) * | 1980-07-31 | 1982-03-17 | Wolff Walsrode Aktiengesellschaft | Process for the manufacture of water-soluble hydrolysis products of polyacrylonitrile, and use thereof as drilling fluids |
| US4357437A (en) | 1980-07-31 | 1982-11-02 | Wolff Walsrode Ag | Process for the production of water-soluble hydrolyzed products of polyacrylonitrile polymers |
| EP0670335A1 (en) * | 1994-03-03 | 1995-09-06 | Bayer Ag | Superabsorbent polymers |
| US5496890A (en) * | 1994-03-03 | 1996-03-05 | Bayer Aktiengesellschaft | Super-absorbent polymers |
| US5567779A (en) * | 1994-03-03 | 1996-10-22 | Bayer Aktiengesellschaft | Super-absorbent polymers |
| EP0697416A1 (en) * | 1994-08-18 | 1996-02-21 | Bayer Ag | Superabsorbent polymers from crosslinked poly(acrylonitrile) emulsions |
| US5635569A (en) * | 1994-08-18 | 1997-06-03 | Bayer Aktiengesellschaft | Superabsorbent polymers from cross-linked polyacrylonitrile emulsions |
| WO2006063957A1 (en) * | 2004-12-16 | 2006-06-22 | Ciba Specialty Chemicals Holding Inc. | Stabilized organic materials containing fillers |
| CN113882153A (en) * | 2021-11-02 | 2022-01-04 | 中国船舶重工集团公司第七一八研究所 | Method for preparing carboxylic acid fiber by catalytic hydrolysis of polyacrylonitrile |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1719433A1 (en) | 1972-04-20 |
| ES324201A1 (en) | 1966-12-16 |
| FR1499131A (en) | 1967-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BR8906585A (en) | POLYMERIC, CATIONIC, BRANCHED FLOCCULANT, SOLUBLE IN WATER, NOT SCALED, PROCESS FOR ITS PREPARATION AND PROCESS TO RELEASE WATER FROM A DISPERSION OF SUSPENDED SOLIDS | |
| US3493500A (en) | Acrylic acid polymers | |
| DE59403585D1 (en) | NETWORKED SYNTHETIC POLYMERISATES WITH POROUS STRUCTURE | |
| GB1380807A (en) | Water-soluble sulphonate polymers as flocculants | |
| AU591269B2 (en) | Preparation of bead polymers based on water-soluble ethylenically unsaturated monomers | |
| EP0215565A1 (en) | Dispersing agents | |
| US3367918A (en) | Polymeric amide-secondary dialkyl ammonium salt-paraformaldehyde flocculant composition and method | |
| BR0009024A (en) | Monomer and polymerization process | |
| GB1104567A (en) | Polymeric dispersing agents | |
| US3332922A (en) | Acrylamide polymers prepared in the presence of a redox catalyst system wherein a constant free-radical concentration is maintained | |
| JPS6215251A (en) | Production of liquid dispersion of water-soluble cationic polymer | |
| GB974023A (en) | Preparation of dried polyacrylamide compositions | |
| KR890007888A (en) | Vermiculite products having structural stability not dispersed in water and methods of improving the structural stability of vermiculite products | |
| ES2120119T3 (en) | WATER-SOLUBLE POLYMERS OF (MET) ACRYLAMIDE, ETHYLENEICALLY UNSATURATED ALIPHATIC CARBOXYLIC ACID OR A SALT OF THE SAME AND POLYVINYL MONOMER, AND ITS USE AS DRY RESISTANCE ADDITIVES FOR PAPER. | |
| GB1281907A (en) | Process for the preparation of granular polytetrafluoroethylene | |
| US3507787A (en) | Method of flocculating an aqueous suspension of solid inorganic particles | |
| ES342275A1 (en) | Production of acrylonitrile polymers by photo - polymerization in an aqueous thiocyanate solution | |
| GB1111853A (en) | Process for dispersing solids in aqueous systems | |
| GB1148005A (en) | Wet strength resins and paper | |
| GB1106573A (en) | Improvements in or relating to methods of producing water-soluble polyacrylamide | |
| JPS559631A (en) | Fine polymer particle with uniform particle size distribution and its production | |
| Machida et al. | Studies on the Water-Soluble Polymers. VI On the Application of Polyethyleneimine to Paper Making.(1) | |
| GB987329A (en) | Modified polymers of acrylamide and its homologues and their production | |
| GB1064535A (en) | Copolymers of tetrafluoethylene | |
| GB1471283A (en) | Method for dissolving acrylamide polymers |