ES446382A1 - Removing monomer from polymer - Google Patents
Removing monomer from polymerInfo
- Publication number
- ES446382A1 ES446382A1 ES446382A ES446382A ES446382A1 ES 446382 A1 ES446382 A1 ES 446382A1 ES 446382 A ES446382 A ES 446382A ES 446382 A ES446382 A ES 446382A ES 446382 A1 ES446382 A1 ES 446382A1
- Authority
- ES
- Spain
- Prior art keywords
- polymer
- pressure
- vinyl chloride
- temperature
- copolymer
- 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
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
- C08F6/00—Post-polymerisation treatments
- C08F6/001—Removal of residual monomers by physical means
- C08F6/005—Removal of residual monomers by physical means from solid polymers
Landscapes
- 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)
Abstract
Degassing process of polymers and copolymers prepared by mass polymerization of monomer compositions based on vinyl chloride, according to which the polymer is kept under stirring, the monomer composition to be removed from the polymerization pressure is led to a pressure lower than 120 mm of mercury, the polymer is brought and maintained at a temperature equal to at least 70ºC and below the temperature of the onset of polymer or copolymer degradation, and these pressure and temperature conditions are maintained substantially up to stopping degassing; characterized in that the polymer is contacted with an amount of water representing 0.01 to 0.8% and preferably 0.05 to 0.5% of its weight, after the residual monomeric vinyl chloride degree of the polymer or copolymer has dropped below 2,000 pprn. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7509798A FR2305446A1 (en) | 1975-03-28 | 1975-03-28 | IMPROVED PROCESS FOR DEGASING POLYMERS AND COPOLYMERS PREPARED BY MASS POLYMERIZATION OF A MONOMERIC COMPOSITION BASED ON VINYL CHLORIDE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES446382A1 true ES446382A1 (en) | 1977-06-16 |
Family
ID=9153250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES446382A Expired ES446382A1 (en) | 1975-03-28 | 1976-03-26 | Removing monomer from polymer |
Country Status (22)
| Country | Link |
|---|---|
| JP (1) | JPS51119784A (en) |
| AR (1) | AR207812A1 (en) |
| AT (1) | AT348255B (en) |
| BE (1) | BE840031A (en) |
| BR (1) | BR7601836A (en) |
| CA (1) | CA1109193A (en) |
| CH (1) | CH609990A5 (en) |
| DE (1) | DE2612748C3 (en) |
| DK (1) | DK131576A (en) |
| ES (1) | ES446382A1 (en) |
| FI (1) | FI61035C (en) |
| FR (1) | FR2305446A1 (en) |
| GB (1) | GB1506981A (en) |
| IE (1) | IE42533B1 (en) |
| IN (1) | IN144657B (en) |
| IT (1) | IT1057398B (en) |
| LU (1) | LU74649A1 (en) |
| NL (1) | NL165758C (en) |
| NO (1) | NO144968C (en) |
| SE (1) | SE426493B (en) |
| SU (1) | SU656530A3 (en) |
| TR (1) | TR19439A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1547614A (en) * | 1975-09-15 | 1979-06-27 | Tenneco Chem | Removing residual monomer from vinyl chloryde polymers |
| DE2653256C2 (en) * | 1976-11-24 | 1983-02-17 | Hoechst Ag, 6000 Frankfurt | Process for lowering the residual monomer content of vinyl chloride polymers |
| FR2489826A1 (en) * | 1980-09-08 | 1982-03-12 | Rhone Poulenc Ind | PROCESS FOR DEGASSING MASS-PREPARED VINYL CHLORIDE POLYMERS AND COPOLYMERS AND POLYMERS AND COPOLYMERS HAVING IMPROVED IMPROVED SCREENABILITY |
| FR2516521A1 (en) * | 1981-11-13 | 1983-05-20 | Chloe Chemie | Removing residual vinyl chloride monomer from polymerisation system - followed by adding water contg. nonionic surfactant to polymer |
| CN117957289A (en) * | 2021-10-21 | 2024-04-30 | Dnp精细化工股份有限公司 | Ink composition, ink set, recording method, method for producing recorded matter, and recorded matter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1096973A (en) * | 1966-05-16 | 1967-12-29 | Shell Int Research | The manufacture of styrene polymers, and the resulting polymers |
| DE1816350A1 (en) * | 1967-12-26 | 1969-10-16 | Union Carbide Corp | Removal of volatiles from a viscous polymer solution |
| US3668161A (en) * | 1969-06-09 | 1972-06-06 | Union Carbide Corp | Devolatilization of liquid polymer compositions |
| IT989178B (en) * | 1972-07-19 | 1975-05-20 | Solvay | PROCEDURE TO ELIMINATE RESIDUAL VINYL CHLORIDE PRESENT IN POLI MERI |
| NO752264L (en) * | 1974-08-29 | 1976-03-02 | Huels Chemische Werke Ag |
-
1975
- 1975-03-28 FR FR7509798A patent/FR2305446A1/en active Granted
-
1976
- 1976-01-01 AR AR262672A patent/AR207812A1/en active
- 1976-02-27 SE SE7602693A patent/SE426493B/en not_active IP Right Cessation
- 1976-03-24 FI FI760782A patent/FI61035C/en not_active IP Right Cessation
- 1976-03-24 JP JP51032370A patent/JPS51119784A/en active Granted
- 1976-03-25 BE BE165561A patent/BE840031A/en not_active IP Right Cessation
- 1976-03-25 DK DK131576A patent/DK131576A/en not_active Application Discontinuation
- 1976-03-25 DE DE2612748A patent/DE2612748C3/en not_active Expired
- 1976-03-25 NO NO761043A patent/NO144968C/en unknown
- 1976-03-26 IE IE640/76A patent/IE42533B1/en unknown
- 1976-03-26 TR TR19439A patent/TR19439A/en unknown
- 1976-03-26 AT AT224976A patent/AT348255B/en not_active IP Right Cessation
- 1976-03-26 SU SU762338311A patent/SU656530A3/en active
- 1976-03-26 CH CH384476A patent/CH609990A5/en not_active IP Right Cessation
- 1976-03-26 GB GB12310/76A patent/GB1506981A/en not_active Expired
- 1976-03-26 IT IT48739/76A patent/IT1057398B/en active
- 1976-03-26 CA CA248,892A patent/CA1109193A/en not_active Expired
- 1976-03-26 LU LU74649A patent/LU74649A1/xx unknown
- 1976-03-26 NL NL7603198.A patent/NL165758C/en not_active IP Right Cessation
- 1976-03-26 BR BR7601836A patent/BR7601836A/en unknown
- 1976-03-26 ES ES446382A patent/ES446382A1/en not_active Expired
- 1976-03-27 IN IN532/CAL/1976A patent/IN144657B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1506981A (en) | 1978-04-12 |
| SE7602693L (en) | 1976-09-29 |
| TR19439A (en) | 1979-03-20 |
| NL165758B (en) | 1980-12-15 |
| NO144968B (en) | 1981-09-07 |
| DE2612748C3 (en) | 1980-11-13 |
| FI61035C (en) | 1982-05-10 |
| DE2612748B2 (en) | 1980-03-20 |
| FI760782A (en) | 1976-09-29 |
| IE42533L (en) | 1976-09-28 |
| CH609990A5 (en) | 1979-03-30 |
| IN144657B (en) | 1978-06-03 |
| AT348255B (en) | 1979-02-12 |
| DE2612748A1 (en) | 1976-10-07 |
| JPS51119784A (en) | 1976-10-20 |
| NO144968C (en) | 1981-12-16 |
| NL165758C (en) | 1981-05-15 |
| LU74649A1 (en) | 1977-01-28 |
| CA1109193A (en) | 1981-09-15 |
| IE42533B1 (en) | 1980-08-27 |
| NO761043L (en) | 1976-09-29 |
| AR207812A1 (en) | 1976-10-29 |
| BR7601836A (en) | 1976-09-28 |
| ATA224976A (en) | 1978-06-15 |
| IT1057398B (en) | 1982-03-10 |
| NL7603198A (en) | 1976-09-30 |
| JPS558007B2 (en) | 1980-03-01 |
| DK131576A (en) | 1976-09-29 |
| FI61035B (en) | 1982-01-29 |
| SE426493B (en) | 1983-01-24 |
| SU656530A3 (en) | 1979-04-05 |
| FR2305446A1 (en) | 1976-10-22 |
| FR2305446B1 (en) | 1979-02-16 |
| BE840031A (en) | 1976-09-27 |
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