BR8203423A - Processo para a producao de solucoes aquosas homogeneas de polimeros e copolimeros de acrilonitrila saponificados ou parcialmente saponificados - Google Patents
Processo para a producao de solucoes aquosas homogeneas de polimeros e copolimeros de acrilonitrila saponificados ou parcialmente saponificadosInfo
- Publication number
- BR8203423A BR8203423A BR8203423A BR8203423A BR8203423A BR 8203423 A BR8203423 A BR 8203423A BR 8203423 A BR8203423 A BR 8203423A BR 8203423 A BR8203423 A BR 8203423A BR 8203423 A BR8203423 A BR 8203423A
- Authority
- BR
- Brazil
- Prior art keywords
- saponified
- copolymers
- polymers
- acrylonitrilla
- production
- Prior art date
Links
- 229920001577 copolymer Polymers 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 229920000642 polymer Polymers 0.000 title abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 239000006185 dispersion Substances 0.000 abstract 2
- 238000003756 stirring Methods 0.000 abstract 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229920002239 polyacrylonitrile Polymers 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
Classifications
-
- 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
- C08F8/12—Hydrolysis
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813123290 DE3123290A1 (de) | 1981-06-12 | 1981-06-12 | Verbessertes verfahren zur alkalischen verseifung von pan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR8203423A true BR8203423A (pt) | 1983-06-07 |
Family
ID=6134519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR8203423A BR8203423A (pt) | 1981-06-12 | 1982-06-11 | Processo para a producao de solucoes aquosas homogeneas de polimeros e copolimeros de acrilonitrila saponificados ou parcialmente saponificados |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0067362B1 (pt) |
| JP (1) | JPS57212204A (pt) |
| AT (1) | ATE21398T1 (pt) |
| BR (1) | BR8203423A (pt) |
| DE (2) | DE3123290A1 (pt) |
| ES (1) | ES8305799A1 (pt) |
| ZA (1) | ZA824124B (pt) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3619721A1 (de) * | 1986-06-12 | 1987-12-17 | Wolff Walsrode Ag | Verfahren zur herstellung wasserloeslicher copolymerisate und deren verwendung als schlichtmittel |
| DE3922201A1 (de) * | 1989-07-06 | 1991-01-17 | Bayer Ag | Verfahren zur herstellung von schwachsauren kationenaustauschharzen |
| DE19600163A1 (de) * | 1996-01-04 | 1997-07-10 | Bayer Ag | Verfahren zur kontinuierlichen Herstellung von superabsorbierenden Polymerisaten aus PAN-Emulsionen |
| EP1348717B1 (en) * | 1997-04-16 | 2008-07-16 | Sony Corporation | Method for producing a high molecular flocculant |
| JP3982046B2 (ja) | 1997-04-16 | 2007-09-26 | ソニー株式会社 | 高分子凝集剤 |
| DE19731627A1 (de) * | 1997-07-23 | 1999-01-28 | Degussa | Granulate, enthaltend Titansilikalit-l |
| DE10019757A1 (de) | 2000-04-20 | 2001-10-25 | Bayer Ag | Verfahren zur Herstellung von superabsorbierenden Polymeren aus Polyacrylnitril-Fällungspolymerisaten |
| DE10322441A1 (de) * | 2003-05-19 | 2004-12-09 | Bayer Chemicals Ag | Verfahren zur alkalischen Verseifung vernetzter Acrylnitrilperlpolymerisate |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2812317A (en) * | 1953-08-19 | 1957-11-05 | Monsanto Chemicals | Hydrolyzed polyacrylonitrile polymers and process of preparing same |
| US3419502A (en) * | 1964-10-01 | 1968-12-31 | Nalco Chemical Co | Process for dispersing solids in aqueous systems |
| DE2903267A1 (de) * | 1979-01-29 | 1980-08-07 | Hoechst Ag | Verfahren zur herstellung von acrylpolymeren mit hoher wasserquellfaehigkeit und deren verwendung |
-
1981
- 1981-06-12 DE DE19813123290 patent/DE3123290A1/de not_active Withdrawn
-
1982
- 1982-06-02 AT AT82104806T patent/ATE21398T1/de active
- 1982-06-02 EP EP82104806A patent/EP0067362B1/de not_active Expired
- 1982-06-02 DE DE8282104806T patent/DE3272558D1/de not_active Expired
- 1982-06-10 JP JP57098612A patent/JPS57212204A/ja active Pending
- 1982-06-11 BR BR8203423A patent/BR8203423A/pt unknown
- 1982-06-11 ES ES513003A patent/ES8305799A1/es not_active Expired
- 1982-06-11 ZA ZA824124A patent/ZA824124B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57212204A (en) | 1982-12-27 |
| ATE21398T1 (de) | 1986-08-15 |
| DE3123290A1 (de) | 1982-12-30 |
| ES513003A0 (es) | 1983-04-16 |
| EP0067362A1 (de) | 1982-12-22 |
| EP0067362B1 (de) | 1986-08-13 |
| ZA824124B (en) | 1983-04-27 |
| DE3272558D1 (en) | 1986-09-18 |
| ES8305799A1 (es) | 1983-04-16 |
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