GB1224620A - Continuous process for the production of alfin polymers - Google Patents
Continuous process for the production of alfin polymersInfo
- Publication number
- GB1224620A GB1224620A GB40086/68A GB4008668A GB1224620A GB 1224620 A GB1224620 A GB 1224620A GB 40086/68 A GB40086/68 A GB 40086/68A GB 4008668 A GB4008668 A GB 4008668A GB 1224620 A GB1224620 A GB 1224620A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alfin
- solvent
- catalyst
- continuously
- isoprene
- 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
- C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F36/02—Homopolymers and copolymers 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
- C08F36/04—Homopolymers and copolymers 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
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
1,224,620. Continuous alfin polymer formation and purification. NATIONAL DISTILLERS & CHEMICAL CORP. 21 Aug., 1968 [21 Aug., 1967], No. 40086/68. Addition to 1,041,924. Heading C3P. Alfin polymers are obtained by continuously blending monomer, alfin catalyst, molecular weight modifier, and solvent (or diluent), continuously polymerizing at above 100‹ F., and continuously separating volatile materials from the mixture obtained by quenching in water and steam distilling the resulting dispersion, and thereafter recovering solvent and, optionally, monomer, for recycling, and recovering the alfin polymer. The reaction mixture may be washed with water prior to waterquenching. The solvent is suitably the same for the three steps of forming a sodium dispersion, forming an alfin catalyst therefrom, and polymerizing using the catalyst. Suitable monomers are conjugated dienes and alkenyl aromatic compounds, the polymerization of butadiene and of isoprene, and the copolymerization of butadiene with styrene or isoprene (exemplified) being particularly mentioned. Two detailed flow diagrams (not shown) are provided.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66192167A | 1967-08-21 | 1967-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1224620A true GB1224620A (en) | 1971-03-10 |
Family
ID=24655659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB40086/68A Expired GB1224620A (en) | 1967-08-21 | 1968-08-21 | Continuous process for the production of alfin polymers |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE719713A (en) |
| DE (1) | DE1792342A1 (en) |
| ES (1) | ES357691A1 (en) |
| FR (1) | FR1600427A (en) |
| GB (1) | GB1224620A (en) |
| NL (1) | NL6811862A (en) |
-
1968
- 1968-08-20 BE BE719713A patent/BE719713A/xx unknown
- 1968-08-20 NL NL6811862A patent/NL6811862A/xx unknown
- 1968-08-21 FR FR1600427D patent/FR1600427A/fr not_active Expired
- 1968-08-21 ES ES357691A patent/ES357691A1/en not_active Expired
- 1968-08-21 GB GB40086/68A patent/GB1224620A/en not_active Expired
- 1968-08-21 DE DE19681792342 patent/DE1792342A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ES357691A1 (en) | 1970-03-16 |
| FR1600427A (en) | 1970-07-27 |
| DE1792342A1 (en) | 1972-01-05 |
| NL6811862A (en) | 1969-02-25 |
| BE719713A (en) | 1968-10-31 |
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