GB828198A - Process for purifying polyolefines - Google Patents
Process for purifying polyolefinesInfo
- Publication number
- GB828198A GB828198A GB36693/55A GB3669355A GB828198A GB 828198 A GB828198 A GB 828198A GB 36693/55 A GB36693/55 A GB 36693/55A GB 3669355 A GB3669355 A GB 3669355A GB 828198 A GB828198 A GB 828198A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alcohol
- polyolefines
- washing
- polymer
- purifying
- 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
- C08F6/02—Neutralisation of the polymerisation mass, e.g. killing the catalyst also removal of catalyst residues
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
Polyolefines obtained by the use of Ziegler catalysts are purified by washing or extracting using an alcohol of water content not exceeding 4%, e.g. an anhydrous alcohol; the treatment being without the use of mineral acid or of aluminium halide. The polymers exemplified are polyethylene, polypropylene, poly-a -butylene and ethylene/isobutylene copolymer and they may be prepared using the catalysts disclosed in Specifications 799,392, 799,823, 801,031, 810,023, 819,867 and 820,263. The alcohol, which is preferably methanol, propanol, or a butyl alcohol, may be added to the polymer itself or to a solution or suspension of the polymer in the reaction medium. The purification may be applied to polyolefines obtained without the use of solvents. The examples also describe the subsequent step of washing with acetone.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE340631X | 1954-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB828198A true GB828198A (en) | 1960-02-17 |
Family
ID=6228443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36693/55A Expired GB828198A (en) | 1954-12-27 | 1955-12-21 | Process for purifying polyolefines |
Country Status (11)
| Country | Link |
|---|---|
| AT (1) | AT196126B (en) |
| BE (1) | BE543837A (en) |
| CH (1) | CH340631A (en) |
| DD (1) | DD14918A (en) |
| FR (1) | FR1152881A (en) |
| GB (1) | GB828198A (en) |
| IN (1) | IN56305B (en) |
| IT (1) | IT546894A (en) |
| MX (1) | MX59820A (en) |
| NL (2) | NL95128C (en) |
| NO (1) | NO95974A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1059660B (en) * | 1956-08-04 | 1959-06-18 | Huels Chemische Werke Ag | Process for processing low-pressure polyolefins |
| BE559729A (en) * | 1956-08-17 | |||
| DE1166478B (en) * | 1956-11-01 | 1964-03-26 | Hoechst Ag | Process for the purification of polymers from olefinically unsaturated hydrocarbons |
| DE1292379B (en) * | 1959-06-12 | 1969-04-10 | Huels Chemische Werke Ag | Process for the processing of low-pressure polyolefins |
-
0
- BE BE543837D patent/BE543837A/xx unknown
- NO NO95974D patent/NO95974A/no unknown
- IN IN56305D patent/IN56305B/en unknown
- MX MX59820D patent/MX59820A/es unknown
- IT IT546894D patent/IT546894A/it unknown
- DD DD14918D patent/DD14918A/xx unknown
- NL NL202947D patent/NL202947A/xx unknown
- NL NL95128D patent/NL95128C/xx active
-
1955
- 1955-12-08 CH CH340631D patent/CH340631A/en unknown
- 1955-12-10 AT AT196126D patent/AT196126B/en active
- 1955-12-19 FR FR1152881D patent/FR1152881A/en not_active Expired
- 1955-12-21 GB GB36693/55A patent/GB828198A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT546894A (en) | |
| DD14918A (en) | |
| NL202947A (en) | |
| BE543837A (en) | |
| IN56305B (en) | |
| AT196126B (en) | 1958-02-25 |
| FR1152881A (en) | 1958-02-26 |
| NL95128C (en) | |
| MX59820A (en) | |
| NO95974A (en) | |
| CH340631A (en) | 1959-08-31 |
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