GB634757A - Improved catalytic polymerisation of ethylene - Google Patents
Improved catalytic polymerisation of ethyleneInfo
- Publication number
- GB634757A GB634757A GB3243347A GB3243347A GB634757A GB 634757 A GB634757 A GB 634757A GB 3243347 A GB3243347 A GB 3243347A GB 3243347 A GB3243347 A GB 3243347A GB 634757 A GB634757 A GB 634757A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alpha
- alpha1
- ethylene
- atmospheres
- bis
- 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
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/02—Ethene
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerization Catalysts (AREA)
Abstract
Polymers and interpolymers of ethylene are made by subjecting ethylene alone or together with a substance which will interpolymerize therewith to superatmospheric temperature and to a pressure above 100 atmospheres in the presence of a catalyst of formula X - N = N - Y, where X is an aliphatic radical, and Y any radical in which a carbon atom is attached directly to the azo nitrogen. The polymerization may be effected in the presence of a liquid medium, which may participate in the reaction. Specified non-reactive media are benzene, toluene, water or water and the reaction product of ethylene oxide and phenol as dispersing agent. The reactive media may be t-butanol, 1-3-dioxolane, cyclohexane, neohexane, acetals, ethers, esters, acids or carbon tetrachloride. The preferred temperatures are between 40 DEG and 100 DEG C. and the pressures between 500 and 3000 atmospheres. The interpolymerizing substances may be vinyl chloride, vinyl acetate, vinyl methyl ketone, tetrafluorethylene, diethyl fumarate, diethyl maleate, carbon monoxide, or sulphur dioxide. Hydrogen may also be present. Specified catalysts are alpha, alpha1-azodiisobutyronitrile; alpha, alpha1 - bis - cyclohexanecarbonitrile; alpha, alpha1 - bis - alpha gamma dimethylvaleronitrile; alpha phenylazoisobutyronitrile; alpha-carbamylazoisobutyronitrile; alpha-carbamylazocyclohexanecarbonitrile; dimethyl alpha, alpha1-azodiisobutyrate; and azodisopropane. The products may be used in wax polishes and for forming films. Specification 622,374 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3243347A GB634757A (en) | 1947-12-09 | 1947-12-09 | Improved catalytic polymerisation of ethylene |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3243347A GB634757A (en) | 1947-12-09 | 1947-12-09 | Improved catalytic polymerisation of ethylene |
Publications (1)
Publication Number | Publication Date |
---|---|
GB634757A true GB634757A (en) | 1950-03-29 |
Family
ID=10338534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3243347A Expired GB634757A (en) | 1947-12-09 | 1947-12-09 | Improved catalytic polymerisation of ethylene |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB634757A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1040792B (en) * | 1952-12-06 | 1958-10-09 | Standard Oil Co | Process for the production of highly crystalline polymers or copolymers of ethylene |
DE1076370B (en) * | 1956-07-17 | 1960-02-25 | Basf Ag | Process for the production of polyethylene powders |
US2962489A (en) * | 1955-02-10 | 1960-11-29 | Bjorksten Res Lab Inc | Polymerization of ethylene |
DE1926346A1 (en) * | 1968-05-25 | 1969-12-04 | Mitsubishi Chem Ind | Catalyst for the polymerization of olefins |
-
1947
- 1947-12-09 GB GB3243347A patent/GB634757A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1040792B (en) * | 1952-12-06 | 1958-10-09 | Standard Oil Co | Process for the production of highly crystalline polymers or copolymers of ethylene |
US2962489A (en) * | 1955-02-10 | 1960-11-29 | Bjorksten Res Lab Inc | Polymerization of ethylene |
DE1076370B (en) * | 1956-07-17 | 1960-02-25 | Basf Ag | Process for the production of polyethylene powders |
DE1926346A1 (en) * | 1968-05-25 | 1969-12-04 | Mitsubishi Chem Ind | Catalyst for the polymerization of olefins |
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