ES249323A1 - Ethylene polymerization - Google Patents
Ethylene polymerizationInfo
- Publication number
- ES249323A1 ES249323A1 ES0249323A ES249323A ES249323A1 ES 249323 A1 ES249323 A1 ES 249323A1 ES 0249323 A ES0249323 A ES 0249323A ES 249323 A ES249323 A ES 249323A ES 249323 A1 ES249323 A1 ES 249323A1
- Authority
- ES
- Spain
- Prior art keywords
- decalin
- ethylene
- dimethylbenzyl
- oxalic acid
- carried out
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Ethylene is polymerized at a pressure above 500 atmospheres and a temperature above 40 DEG C. using as catalyst an a -ketopercarboxylate of formula X.CO.CO.OO.R where R is a hydrocarbon radical free from non-aromatic unsaturation and is attached to the oxygen atom through a tertiary carbon atom and X is either -OOR or -OY, Y being a hydrocarbon radical free from non-aromatic unsaturation. The percarboxylate may be a peroxyoxalate in which R is a t-butyl, dimethylbenzyl, t-amyl, p-menthyl, phenylcyclohexyl, p-isopropyl-a , a -dimethylbenzyl or decalin radical. The process may be made batchwise or continuous, may be carried out in the presence of a chain transfer agent such as hydrogen, ethane, propane, cyclohexane or carbon tetrachloride and may be carried out in bulk or in an inert liquid medium such as benzene or petroleum ether. The ethylene may be copolymerized with other monomers e.g. vinyl esters, methyl methacrylate and propylene.ALSO:Decalin peroxalates are made by reacting decalin hydroperoxide with the dichloride of oxalic acid or the chloride of a monoester of oxalic acid. Di-t-butylperoxy oxalate is made from t-butyl hydroperoxide and oxalyl chloride and details are given in Ex. 1 of how the peroxyester may be obtained in a pure, crystalline form.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1544358A GB845683A (en) | 1958-05-14 | 1958-05-14 | Ethylene polymerization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES249323A1 true ES249323A1 (en) | 1959-09-01 |
Family
ID=33428195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0249323A Expired ES249323A1 (en) | 1958-05-14 | 1959-05-11 | Ethylene polymerization |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE578630A (en) |
| DE (1) | DE1155600B (en) |
| ES (1) | ES249323A1 (en) |
| FR (1) | FR1224503A (en) |
| GB (1) | GB845683A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3386949A (en) * | 1965-10-22 | 1968-06-04 | Raychem Corp | Chemical crosslinking of ethylene copolymers with di-t-butyl diperoxyoxalate |
| SE457448B (en) * | 1986-12-08 | 1988-12-27 | Kenobel Ab | DIALKYL ESTERS OF MONOPEROXYOXAL ACID, THEIR PREPARATION AND APPLICATION AS POLYMERIZATION INITIATORS |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB677641A (en) * | 1949-05-16 | 1952-08-20 | Standard Oil Co | Improvements in or relating to a process of polymerizing ethylene |
-
1958
- 1958-05-14 GB GB1544358A patent/GB845683A/en not_active Expired
-
1959
- 1959-05-11 ES ES0249323A patent/ES249323A1/en not_active Expired
- 1959-05-12 DE DEI16415A patent/DE1155600B/en active Pending
- 1959-05-12 BE BE578630D patent/BE578630A/en unknown
- 1959-05-14 FR FR794692A patent/FR1224503A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE578630A (en) | 1959-11-12 |
| GB845683A (en) | 1960-08-24 |
| DE1155600B (en) | 1963-10-10 |
| FR1224503A (en) | 1960-06-24 |
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