GB1332064A - Polyethylene-polypropylene block copolymers and their pre paration - Google Patents
Polyethylene-polypropylene block copolymers and their pre parationInfo
- Publication number
- GB1332064A GB1332064A GB4906671A GB4906671A GB1332064A GB 1332064 A GB1332064 A GB 1332064A GB 4906671 A GB4906671 A GB 4906671A GB 4906671 A GB4906671 A GB 4906671A GB 1332064 A GB1332064 A GB 1332064A
- Authority
- GB
- United Kingdom
- Prior art keywords
- propylene
- alcl
- reaction mass
- ethylene
- polypropylene
- 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
- C08F297/083—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 the monomers being ethylene or propylene
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)
- Graft Or Block Polymers (AREA)
Abstract
1332064 Propylene-ethylene block copolymers and preparation KOPPERS CO Inc 21 Oct 1971 [17 Dec 1970] 49066/71 Heading C3P A polypropylene-polyethylene block copolymer is obtained by (a) polymerizing propylene in a liquid diluent and a 3TiCl 3 .AlCl 3 /R n AlX 3-n catalyst (R is alkyl, X is halogen, n is 2 or 3), and optionally hydrogen, to form a propylene prepolymer reaction mass, (b) removing at least a major portion of the unpolymerized propylene from the said reaction mass, and (c) adding ethylene, hydrogen, and a tetra-alkyltitanate to the said reaction mass whereby the ethylene polymerizes on to the preformed polypropylene to form the block copolymer. Various desirable ranges of properties of the copolymers are set out and particularly stress crack resistance, stiffness values, various Melt Index figures for powder and injection moulded products, impact strength, flow and brittleness temperature. In examples, the catalysts are 3TiCl 3 .AlCl 3 - (C 2 H 5 ) 2 AlCl together with #:(OC 3 H 7 ) 4 .
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9927770A | 1970-12-17 | 1970-12-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1332064A true GB1332064A (en) | 1973-10-03 |
Family
ID=22274126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4906671A Expired GB1332064A (en) | 1970-12-17 | 1971-10-21 | Polyethylene-polypropylene block copolymers and their pre paration |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2162539A1 (en) |
FR (1) | FR2104176A5 (en) |
GB (1) | GB1332064A (en) |
IT (1) | IT944698B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2435487A1 (en) * | 1978-05-22 | 1980-04-04 | Sumitomo Chemical Co | PROCESS FOR PRODUCING SEQUENCE COPOLYMERS OF PROPYLENE AND ETHYLENE |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3171570D1 (en) * | 1980-06-02 | 1985-09-05 | Hercules Inc | Preparation of block copolymers using dimethyl-bis(methylcyclopentadienyl)titanium |
JPS6383116A (en) * | 1986-09-26 | 1988-04-13 | Mitsubishi Petrochem Co Ltd | Production of propylene block copolymer |
-
1971
- 1971-08-10 FR FR7129208A patent/FR2104176A5/fr not_active Expired
- 1971-09-09 IT IT5277571A patent/IT944698B/en active
- 1971-10-21 GB GB4906671A patent/GB1332064A/en not_active Expired
- 1971-12-16 DE DE19712162539 patent/DE2162539A1/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2435487A1 (en) * | 1978-05-22 | 1980-04-04 | Sumitomo Chemical Co | PROCESS FOR PRODUCING SEQUENCE COPOLYMERS OF PROPYLENE AND ETHYLENE |
Also Published As
Publication number | Publication date |
---|---|
IT944698B (en) | 1973-04-20 |
FR2104176A5 (en) | 1972-04-14 |
DE2162539A1 (en) | 1972-07-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PLNP | Patent lapsed through nonpayment of renewal fees |