GB715875A - Improvements in or relating to process of preparing ethylene polymers - Google Patents
Improvements in or relating to process of preparing ethylene polymersInfo
- Publication number
- GB715875A GB715875A GB25306/52A GB2530652A GB715875A GB 715875 A GB715875 A GB 715875A GB 25306/52 A GB25306/52 A GB 25306/52A GB 2530652 A GB2530652 A GB 2530652A GB 715875 A GB715875 A GB 715875A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- relating
- ethylene polymers
- preparing ethylene
- potassium
- 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
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
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
Ethylene of at least 99 per cent. purity is polymerized in an aqueous emulsion of pH at least 10 and containing 0.5 to 2 per cent. of a substantially salt-free potassium soap, at least 2 per cent. potassium hydroxide and 0.8 to 2 per cent. of potassium persulphate. The reaction is carried out at a temperature of 80 DEG to 115 DEG C. and at a pressure of upwards of 6,000 p.s.i., preferably 15,000 to 18,000 p.s.i. The resulting emulsion may be broken with a few drops of sulphuric acid and unreacted ethylene may be re-used. Examples describe batchwise and continuous processes. The products have a molecular weight of 12,000 or higher and a melting point of 80 DEG to 115 DEG C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US715875XA | 1951-10-25 | 1951-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB715875A true GB715875A (en) | 1954-09-22 |
Family
ID=22102281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25306/52A Expired GB715875A (en) | 1951-10-25 | 1952-10-09 | Improvements in or relating to process of preparing ethylene polymers |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1064326A (en) |
| GB (1) | GB715875A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1019087B (en) * | 1955-08-24 | 1957-11-07 | Basf Ag | Process for the production of aqueous polyethylene dispersions |
-
1952
- 1952-10-09 GB GB25306/52A patent/GB715875A/en not_active Expired
- 1952-10-11 FR FR1064326D patent/FR1064326A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1064326A (en) | 1954-05-12 |
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