GB885124A - Process for purifying high molecular weight olefin copolymers - Google Patents
Process for purifying high molecular weight olefin copolymersInfo
- Publication number
- GB885124A GB885124A GB1917258A GB1917258A GB885124A GB 885124 A GB885124 A GB 885124A GB 1917258 A GB1917258 A GB 1917258A GB 1917258 A GB1917258 A GB 1917258A GB 885124 A GB885124 A GB 885124A
- Authority
- GB
- United Kingdom
- Prior art keywords
- purified
- molecular weight
- mixing
- high molecular
- olefin copolymers
- 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
Linear copolymers of b -olefins with each other and/or with other unsaturated hydrocarbons, obtained by the use of catalysts formed by contacting compounds (e.g. halide, oxyhalide or alkoxyhalide) of Group 4a, 5a or 6ametals with organo-metallic compounds (e.g. aluminium alkyls), are purified by a process comprising mixing a hydrocarbon solution of the copolymer with aqueous mineral acid, allowing separation of the mixture into two layers of which the aqueous layer is removed, and then mixing the non-aqueous layer with water to remove acid from the polymer solution. In examples, ethylene/propylene copolymers in heptane or benzene are purified with nitric, sulphuric or hydrochloric acid. Alcohols may be used both in transforming catalyst residues into soluble complexes and in final precipitation of polymer. Apparatus is described for effecting a continuous process. Specifications 856,733, 856,734 and 858,067 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT910357 | 1957-06-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB885124A true GB885124A (en) | 1961-12-20 |
Family
ID=11127941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1917258A Expired GB885124A (en) | 1957-06-19 | 1958-06-16 | Process for purifying high molecular weight olefin copolymers |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE568705A (en) |
CH (1) | CH389910A (en) |
DE (1) | DE1420587A1 (en) |
FR (1) | FR1208521A (en) |
GB (1) | GB885124A (en) |
LU (1) | LU36186A1 (en) |
-
0
- LU LU36186D patent/LU36186A1/xx unknown
- BE BE568705D patent/BE568705A/xx unknown
-
1958
- 1958-06-16 GB GB1917258A patent/GB885124A/en not_active Expired
- 1958-06-17 FR FR1208521D patent/FR1208521A/en not_active Expired
- 1958-06-17 CH CH6065858A patent/CH389910A/en unknown
- 1958-06-18 DE DE19581420587 patent/DE1420587A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
CH389910A (en) | 1965-03-31 |
LU36186A1 (en) | |
FR1208521A (en) | 1960-02-24 |
BE568705A (en) | |
DE1420587A1 (en) | 1968-10-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3367987A (en) | Process for purifying an alpha olefin | |
US4017553A (en) | Process for the preparation of linear alpha-olefin oligomers, subsequent hydrogenation thereof and saturated products thus obtained | |
US2552692A (en) | Extraction of isobutylene by polymerization and depolymerization | |
GB885124A (en) | Process for purifying high molecular weight olefin copolymers | |
GB884116A (en) | Improvements in or relating to the manufacture of polyolefins | |
GB791889A (en) | Process for the polymerisation of olefines or olefine-containing mixtures | |
US2224071A (en) | Catalytic reaction of hydrocarbons | |
US2963520A (en) | Diluent purification process | |
US2913507A (en) | Hydrocarbon conversion with dialytic separation of the catalyst from the hydrocarbon products | |
US2007159A (en) | Segregation of tertiary base olefines | |
US2090905A (en) | Polymerization of olefins | |
US3130004A (en) | Process for the purification and activation of titanium trichloride | |
DE1418222A1 (en) | Process for the production of isoprene | |
US2058851A (en) | Process for sulphating mixtures of olefines | |
GB1307554A (en) | Purification of olefins | |
US2255302A (en) | Polymerization of olefins | |
US2135117A (en) | Polymerization of olefines | |
US3080353A (en) | Method for purifying olefin polymers | |
US3316321A (en) | Method of manufacturing alpha-olefins by oligomerization | |
GB820773A (en) | Process for the production of polyolefins | |
GB890913A (en) | Improved process for the polymerisation of alpha-olefins | |
GB1080140A (en) | Synthesis of polymeric products | |
GB530250A (en) | Improvements in or relating to the manufacture of motor fuels | |
GB839060A (en) | Production of olefin polymers | |
GB1056526A (en) | Process for purifying polyolefins |