GB1080140A - Synthesis of polymeric products - Google Patents
Synthesis of polymeric productsInfo
- Publication number
- GB1080140A GB1080140A GB4358364A GB4358364A GB1080140A GB 1080140 A GB1080140 A GB 1080140A GB 4358364 A GB4358364 A GB 4358364A GB 4358364 A GB4358364 A GB 4358364A GB 1080140 A GB1080140 A GB 1080140A
- Authority
- GB
- United Kingdom
- Prior art keywords
- product
- ashing
- residues
- catalyst
- ashed
- 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
A process for the synthesis of polymeric products from ethylene, propylene or other alpha-olefins or mixtures thereof comprises polymerizing the alpha-olefin with a catalyst comprising titanium, zirconium, vanadium or aluminium or mixtures thereof in the presence of a diluent comprising propane, propylene or butane or a mixture thereof, removing said diluent from the resulting solid polymeric product, removing the catalyst residues from the solid product by de-ashing the product with a hydroxyl-containing reactant to react with and solubilize the residues in admixture with an aliphatic hydrocarbon having from 5 to 12 carbon atoms per molecule, and in the presence of an inorganic acid, the de-ashing being effected at temperatures within the range of from 190 to 250 DEG F., and then separating the thus purified polymer product from the resultant reactant containing the solubilized residues. In the examples polyethylene and polypropylene, produced by polymerizing the monomers in butane using a titanium trichloride/aluminium triethyl catalyst, are de-ashed by treatment with an isopropanol/heptane/anhydrous hydrochloric acid mixture at various temperatures within the range specified above. The de-ashed polymers may be for electrical insulators. The atactic content of polypropylene is also reduced in the de-ashing process.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32090963A | 1963-11-01 | 1963-11-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1080140A true GB1080140A (en) | 1967-08-23 |
Family
ID=23248363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4358364A Expired GB1080140A (en) | 1963-11-01 | 1964-10-26 | Synthesis of polymeric products |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1080140A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4142039A (en) | 1976-07-09 | 1979-02-27 | Societe Chimique Des Charbonnages Cdf Chimie | Process for removing catalyst residues from polyolefins |
| CN116239711A (en) * | 2023-01-13 | 2023-06-09 | 华东理工大学 | Method for removing SBS homogeneous hydrogenation catalyst in SEBS solution |
-
1964
- 1964-10-26 GB GB4358364A patent/GB1080140A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4142039A (en) | 1976-07-09 | 1979-02-27 | Societe Chimique Des Charbonnages Cdf Chimie | Process for removing catalyst residues from polyolefins |
| CN116239711A (en) * | 2023-01-13 | 2023-06-09 | 华东理工大学 | Method for removing SBS homogeneous hydrogenation catalyst in SEBS solution |
| CN116239711B (en) * | 2023-01-13 | 2023-09-12 | 华东理工大学 | Method for removing SBS homogeneous hydrogenation catalyst in SEBS solution |
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