GB1245977A - Continuous process for the production of alfin polymers - Google Patents
Continuous process for the production of alfin polymersInfo
- Publication number
- GB1245977A GB1245977A GB46949/68A GB4694968A GB1245977A GB 1245977 A GB1245977 A GB 1245977A GB 46949/68 A GB46949/68 A GB 46949/68A GB 4694968 A GB4694968 A GB 4694968A GB 1245977 A GB1245977 A GB 1245977A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alfin
- water
- solvent
- 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
-
- 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
-
- 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
1,245,977. Continuous alfin polymer formation and purification. NATIONAL DISTILLERS & CHEMICAL CORP. 3 Oct., 1968 [4 Oct., 1967], No. 46949/68. Heading C3P. Polymers are obtained by continuously blending alfin catalyst, monomer, solvent (or diluent) and molecular weight moderator, continuously polymerizing, continuously separating volatile materials (i) by flashing at a reduced pressure and elevated temperature at the end of polymerization and in the absence of water and of a catalyst deactivator, and. (ii) quenching the reaction mixture in water, and steam distilling the resulting dispersion, and thereafter recovering monomer and solvent and recycling them, and washing and drying the alfin polymer. The flashing step prior to watertreatment enables solvent free of acetylene and cyclopentadiene impurities to be obtained, since the latter are liberated from their sodium salts on contact with water. Suitable monomers are conjugated dienes and alkenyl aromatic compounds, the polymerization of butadiene and of isoprene, and the copolymerization of butadiene with styrene or with isoprene (exemplified) being particularly mentioned. Two detailed flow diagrams (not shown) are provided.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US67288267A | 1967-10-04 | 1967-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1245977A true GB1245977A (en) | 1971-09-15 |
Family
ID=24700404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB46949/68A Expired GB1245977A (en) | 1967-10-04 | 1968-10-03 | Continuous process for the production of alfin polymers |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE721853A (en) |
| BR (1) | BR6802868D0 (en) |
| DE (1) | DE1800934A1 (en) |
| ES (1) | ES359199A1 (en) |
| FR (1) | FR1604618A (en) |
| GB (1) | GB1245977A (en) |
| NL (1) | NL6814275A (en) |
-
1968
- 1968-10-03 GB GB46949/68A patent/GB1245977A/en not_active Expired
- 1968-10-03 DE DE19681800934 patent/DE1800934A1/en active Pending
- 1968-10-03 ES ES359199A patent/ES359199A1/en not_active Expired
- 1968-10-04 NL NL6814275A patent/NL6814275A/xx unknown
- 1968-10-04 BR BR202868/68A patent/BR6802868D0/en unknown
- 1968-10-04 FR FR1604618D patent/FR1604618A/fr not_active Expired
- 1968-10-04 BE BE721853D patent/BE721853A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE721853A (en) | 1969-03-14 |
| ES359199A1 (en) | 1970-06-01 |
| NL6814275A (en) | 1969-04-09 |
| FR1604618A (en) | 1972-01-03 |
| BR6802868D0 (en) | 1973-01-02 |
| DE1800934A1 (en) | 1969-04-30 |
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