GB1057894A - Crystalline block copolymers - Google Patents
Crystalline block copolymersInfo
- Publication number
- GB1057894A GB1057894A GB5098864A GB5098864A GB1057894A GB 1057894 A GB1057894 A GB 1057894A GB 5098864 A GB5098864 A GB 5098864A GB 5098864 A GB5098864 A GB 5098864A GB 1057894 A GB1057894 A GB 1057894A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polymerization
- branched chain
- methylpentene
- molecular weight
- control agent
- 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
- C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
- C08F297/06—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type
- C08F297/08—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (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)
Abstract
Crystalline block copolymers of normal alpha-olefins and branched chain olefins of the formula CH2=CHR in which R is a C3-C10 branched chain alkyl group are made by polymerizing a normal alpha-olefin in the absence of a molecular weight control agent to form a first living polymer and polymerizing the branched chain olefin in the presence of the first living polymer, a molecular weight control agent being admitted to the polymerization zone some time after the start of the polymerization of the branched chain olefin, both stages of polymerization being effected in the presence of a catalyst obtained from (a) a solid crystalline compound of a metal from Groups IV, V, VI, VII and VIII of the Periodic Table, the metal being in a valency state lower than its maximum, and (b) an organometallic compound or hydride of a metal of Groups I, II or III, or an organometallic compound of tin. Normal and branched chain olefins specified are ethylene, propylene, pentene-1, heptene-1, 3-methylbutene-1, 3-methylpentene - 1, 4 - methylpentene - 1, 3-ethylpentene-1 and 4,6-dimethylheptene-1. The preferred molecular weight control agent is hydrogen. The resulting copolymers are insoluble in hot acetone and are capable of forming transparent mouldings. The example describes polymerizing decene-1 in heptane in the presence of a titanium trichloride/aluminium diethylchloride catalyst, continuing polymerization with 4-methylpentene-1, and admitting hydrogen to the polymerization after the start of the polymerization of the 4-methylpente-1.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5098864A GB1057894A (en) | 1964-12-15 | 1964-12-15 | Crystalline block copolymers |
| FR41603A FR1457931A (en) | 1964-12-15 | 1965-12-09 | Process for producing a substantially crystalline block copolymer of a branched chain alpha-ethylenic hydrocarbon and copolymer obtained |
| NL6516232A NL6516232A (en) | 1964-12-15 | 1965-12-14 | |
| BE673795D BE673795A (en) | 1964-12-15 | 1965-12-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5098864A GB1057894A (en) | 1964-12-15 | 1964-12-15 | Crystalline block copolymers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1057894A true GB1057894A (en) | 1967-02-08 |
Family
ID=10458203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5098864A Expired GB1057894A (en) | 1964-12-15 | 1964-12-15 | Crystalline block copolymers |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE673795A (en) |
| FR (1) | FR1457931A (en) |
| GB (1) | GB1057894A (en) |
| NL (1) | NL6516232A (en) |
-
1964
- 1964-12-15 GB GB5098864A patent/GB1057894A/en not_active Expired
-
1965
- 1965-12-09 FR FR41603A patent/FR1457931A/en not_active Expired
- 1965-12-14 NL NL6516232A patent/NL6516232A/xx unknown
- 1965-12-15 BE BE673795D patent/BE673795A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6516232A (en) | 1966-06-16 |
| FR1457931A (en) | 1966-01-24 |
| BE673795A (en) | 1966-06-15 |
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