GB1506981A - Removing monomer from polymer - Google Patents
Removing monomer from polymerInfo
- Publication number
- GB1506981A GB1506981A GB12310/76A GB1231076A GB1506981A GB 1506981 A GB1506981 A GB 1506981A GB 12310/76 A GB12310/76 A GB 12310/76A GB 1231076 A GB1231076 A GB 1231076A GB 1506981 A GB1506981 A GB 1506981A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polymer
- pressure
- vinyl chloride
- temperature
- degassing
- 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
1506981 Degassing polymers RHONE - POULENC INDUSTRIES 26 March 1976 [28 March 1975] 12310/76 Heading B1F [Also in Division C3] The invention relates to a method of degassing polymers and copolymers prepared by bulk polymerisation of a monomeric composition based on vinyl chloride, in which the polymer is kept agitated and brought from polymerisation pressure to a pressure such that the partial pressure of the monomeric composition to be eliminated is below 120mm of Hg and brought to or kept at a temperature of at least 70C but below the temperature at which degredation of the polymer or copolymer commences, and the conditions of pressure and temperature together with the agitation, are maintained until the end of the process, and the polymer is put into contact with a quantity of water representing 0.01-0.8% of its weight after the residual monomeric vinyl chloride content of the polymer or copolymer has been reduced below 2000ppm. Nitrogen may be put in'to contact with the polymer during degassing. The degassed polymer may have a residual monomeric vinyl chloride content of less than 50ppm.
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 |
|---|---|
| GB1506981A true GB1506981A (en) | 1978-04-12 |
Family
ID=9153250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12310/76A Expired GB1506981A (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 NO NO761043A patent/NO144968C/en unknown
- 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 BE BE165561A patent/BE840031A/en not_active IP Right Cessation
- 1976-03-26 TR TR19439A patent/TR19439A/en unknown
- 1976-03-26 IE IE640/76A patent/IE42533B1/en unknown
- 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 SU SU762338311A patent/SU656530A3/en active
- 1976-03-26 LU LU74649A patent/LU74649A1/xx unknown
- 1976-03-26 CH CH384476A patent/CH609990A5/en not_active IP Right Cessation
- 1976-03-26 NL NL7603198.A patent/NL165758C/en not_active IP Right Cessation
- 1976-03-26 AT AT224976A patent/AT348255B/en not_active IP Right Cessation
- 1976-03-26 GB GB12310/76A patent/GB1506981A/en not_active Expired
- 1976-03-26 ES ES446382A patent/ES446382A1/en not_active Expired
- 1976-03-26 BR BR7601836A patent/BR7601836A/en unknown
- 1976-03-27 IN IN532/CAL/1976A patent/IN144657B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL165758B (en) | 1980-12-15 |
| NO144968B (en) | 1981-09-07 |
| FI61035C (en) | 1982-05-10 |
| SE7602693L (en) | 1976-09-29 |
| LU74649A1 (en) | 1977-01-28 |
| IN144657B (en) | 1978-06-03 |
| CH609990A5 (en) | 1979-03-30 |
| DK131576A (en) | 1976-09-29 |
| NL7603198A (en) | 1976-09-30 |
| JPS51119784A (en) | 1976-10-20 |
| DE2612748C3 (en) | 1980-11-13 |
| AR207812A1 (en) | 1976-10-29 |
| FI61035B (en) | 1982-01-29 |
| NL165758C (en) | 1981-05-15 |
| ES446382A1 (en) | 1977-06-16 |
| BE840031A (en) | 1976-09-27 |
| TR19439A (en) | 1979-03-20 |
| AT348255B (en) | 1979-02-12 |
| FI760782A (en) | 1976-09-29 |
| JPS558007B2 (en) | 1980-03-01 |
| ATA224976A (en) | 1978-06-15 |
| NO761043L (en) | 1976-09-29 |
| IE42533L (en) | 1976-09-28 |
| DE2612748B2 (en) | 1980-03-20 |
| IT1057398B (en) | 1982-03-10 |
| CA1109193A (en) | 1981-09-15 |
| BR7601836A (en) | 1976-09-28 |
| SE426493B (en) | 1983-01-24 |
| FR2305446A1 (en) | 1976-10-22 |
| FR2305446B1 (en) | 1979-02-16 |
| NO144968C (en) | 1981-12-16 |
| DE2612748A1 (en) | 1976-10-07 |
| SU656530A3 (en) | 1979-04-05 |
| IE42533B1 (en) | 1980-08-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19960325 |