ES322612A1 - Improvements in the polymerisation of conjugated diene monomers - Google Patents
Improvements in the polymerisation of conjugated diene monomersInfo
- Publication number
- ES322612A1 ES322612A1 ES0322612A ES322612A ES322612A1 ES 322612 A1 ES322612 A1 ES 322612A1 ES 0322612 A ES0322612 A ES 0322612A ES 322612 A ES322612 A ES 322612A ES 322612 A1 ES322612 A1 ES 322612A1
- Authority
- ES
- Spain
- Prior art keywords
- molecular ratio
- iodide
- compound
- organometallic
- polymers
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Polymers of conjugated dienes, e.g. butadiene, are made by effecting polymerization of the monomers in solution, in the presence of a catalyst system comprising (a) an organometallic iodide (b) a tetravalent titanium compound, and (c) an organometallic compound different from (a) and of the general formula R n M or R n-1 XM, where M represents Al, Mg, or Li of valency n, R is an organic group, and X represents halogen or hydrogen. The relative proportions of (a), (b) and (c) being maintained during polymerization such that there is no substantial molar excess of component (c) over the sum of the molar amounts of components (a) and (b), and when M represents an A1 atom, the molecular ratio of the organometallic iodide to Ti is greater than 2 and the molecular ratio of R n M or R n-1 XM to Ti is from 2.5 to 4.5, when M represents lithium, the component c is R n M, the molecular ratio of iodide to Ti is greater than 2, and the molecular ratio of R n M to Ti is from 1 to 4, and when M represents Mg, the molecular ratio of iodide to Ti is greater than 3, and the molecular ratio of R n M or R n-1 XM to Ti is from 0.5 to 4. The tetravalent Ti compound, e.g. TiCl 4 , and the organometallic compound may be present as a reaction product. Compound (a) may be aluminium diethyl or diisobutyl iodide and it may be prepared in situ. The polymers have a high cis-1,4 content.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR4448A FR1436607A (en) | 1965-02-04 | 1965-02-04 | Catalysts and polymerization process applicable in particular to the polymerization of conjugated dienes |
Publications (1)
Publication Number | Publication Date |
---|---|
ES322612A1 true ES322612A1 (en) | 1966-11-16 |
Family
ID=8570082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0322612A Expired ES322612A1 (en) | 1965-02-04 | 1966-02-04 | Improvements in the polymerisation of conjugated diene monomers |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE675781A (en) |
DE (1) | DE1620968B2 (en) |
ES (1) | ES322612A1 (en) |
FR (1) | FR1436607A (en) |
GB (1) | GB1140687A (en) |
LU (1) | LU50387A1 (en) |
NL (2) | NL6601342A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2216062A1 (en) | 1997-09-19 | 1999-03-19 | Bayer Inc. | Silica-containing rubber composition |
-
0
- NL NL129665D patent/NL129665C/xx active
-
1965
- 1965-02-04 FR FR4448A patent/FR1436607A/en not_active Expired
-
1966
- 1966-01-31 BE BE675781D patent/BE675781A/xx unknown
- 1966-02-02 NL NL6601342A patent/NL6601342A/xx unknown
- 1966-02-03 LU LU50387A patent/LU50387A1/xx unknown
- 1966-02-03 GB GB487266A patent/GB1140687A/en not_active Expired
- 1966-02-03 DE DE19661620968 patent/DE1620968B2/en active Pending
- 1966-02-04 ES ES0322612A patent/ES322612A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1620968B2 (en) | 1970-06-11 |
DE1620968A1 (en) | 1969-08-07 |
NL6601342A (en) | 1966-08-05 |
NL129665C (en) | |
LU50387A1 (en) | 1966-08-03 |
FR1436607A (en) | 1966-04-29 |
GB1140687A (en) | 1969-01-22 |
BE675781A (en) | 1966-05-16 |
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