ES260087A1 - Improvements relating to cis-1,4-polybutadiene - Google Patents
Improvements relating to cis-1,4-polybutadieneInfo
- Publication number
- ES260087A1 ES260087A1 ES0260087A ES260087A ES260087A1 ES 260087 A1 ES260087 A1 ES 260087A1 ES 0260087 A ES0260087 A ES 0260087A ES 260087 A ES260087 A ES 260087A ES 260087 A1 ES260087 A1 ES 260087A1
- Authority
- ES
- Spain
- Prior art keywords
- aromatic
- polybutadiene
- cis
- molecular weight
- aliphatic hydrocarbon
- 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
- C08F136/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F136/02—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F136/04—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
- C08F136/06—Butadiene
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
Cis-1,4-polybutadiene of controlled molecular weight is obtained by polymerizing butadiene with a catalyst comprising a dialkyl aluminium monohalide, and a compound of a metal of Group VIII of the Periodic Table according to Mendel<\>aeeff, in the presence of a solvent mixture comprising at least one aromatic and at least one aliphatic hydrocarbon, and controlling the average molecular weight of the polymer by increasing the volume ratio between the aromatic and aliphatic hydrocarbons in the mixture. The aliphatic hydrocarbon may be butane, pentane, petroleum ether, heptane, or iso-octane. The aromatic hydrocarbon may be benzene, or toluene. The catalysts exemplified are diethyl aluminium chloride admixed with nickel or cobalt diacetylacetonate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1304959 | 1959-08-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES260087A1 true ES260087A1 (en) | 1961-01-16 |
Family
ID=11144117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0260087A Expired ES260087A1 (en) | 1959-08-03 | 1960-08-02 | Improvements relating to cis-1,4-polybutadiene |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE593686A (en) |
DE (1) | DE1117878B (en) |
ES (1) | ES260087A1 (en) |
GB (1) | GB924427A (en) |
IT (1) | IT613456A (en) |
NL (1) | NL253954A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4224426A (en) | 1978-11-13 | 1980-09-23 | The B. F. Goodrich Company | Polymerization process for cis-1,4-polybutadiene using cycloalkane solvents and an aromatic polymerization regulator |
JP5785191B2 (en) | 2010-01-15 | 2015-09-24 | リライアンス インダストリーズ リミテッド | High CIS polybutadiene rubber in harmless solvent and process for preparing the same |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU35350A1 (en) * | 1956-08-06 |
-
0
- IT IT613456D patent/IT613456A/it unknown
- NL NL253954D patent/NL253954A/xx unknown
- BE BE593686D patent/BE593686A/xx unknown
-
1960
- 1960-07-29 GB GB2751260A patent/GB924427A/en not_active Expired
- 1960-08-01 DE DEM46114A patent/DE1117878B/en active Pending
- 1960-08-02 ES ES0260087A patent/ES260087A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1117878B (en) | 1961-11-23 |
NL253954A (en) | |
BE593686A (en) | |
IT613456A (en) | |
GB924427A (en) | 1963-04-24 |
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