JPS5379982A - Process for recovering atactic polypropylene - Google Patents
Process for recovering atactic polypropyleneInfo
- Publication number
- JPS5379982A JPS5379982A JP15505076A JP15505076A JPS5379982A JP S5379982 A JPS5379982 A JP S5379982A JP 15505076 A JP15505076 A JP 15505076A JP 15505076 A JP15505076 A JP 15505076A JP S5379982 A JPS5379982 A JP S5379982A
- Authority
- JP
- Japan
- Prior art keywords
- atactic polypropylene
- recovering
- polypropylene
- atactiv
- gushed
- 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.)
- Granted
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
- C08F6/00—Post-polymerisation treatments
- C08F6/06—Treatment of polymer solutions
- C08F6/12—Separation of polymers from solutions
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
PURPOSE: A solution containing atactic polypropylene and polymerization solvent is passed through a double-pipe heater at a specified fluid speed and then gushed into a separation zone kept under low pressure, thereby atactiv polypropylene is easily recovered.
COPYRIGHT: (C)1978,JPO&Japio
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7818744A FR2429230A1 (en) | 1978-06-22 | 1978-06-22 | Recovery of atactic polypropylene after propylene polymerisation - by passage of soln. through heated tube |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5379982A true JPS5379982A (en) | 1978-07-14 |
JPS5914485B2 JPS5914485B2 (en) | 1984-04-04 |
Family
ID=9209868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15505076A Expired JPS5914485B2 (en) | 1978-06-22 | 1976-12-24 | Recovery method of atactic polypropylene |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5914485B2 (en) |
AT (1) | AT355301B (en) |
BE (1) | BE868380A (en) |
FR (1) | FR2429230A1 (en) |
NL (1) | NL177921C (en) |
-
1976
- 1976-12-24 JP JP15505076A patent/JPS5914485B2/en not_active Expired
-
1978
- 1978-06-08 NL NL7806230A patent/NL177921C/en not_active IP Right Cessation
- 1978-06-22 AT AT454678A patent/AT355301B/en not_active IP Right Cessation
- 1978-06-22 FR FR7818744A patent/FR2429230A1/en active Granted
- 1978-06-22 BE BE188790A patent/BE868380A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NL177921B (en) | 1985-07-16 |
AT355301B (en) | 1980-02-25 |
FR2429230B1 (en) | 1985-02-15 |
NL7806230A (en) | 1979-12-11 |
ATA454678A (en) | 1979-07-15 |
NL177921C (en) | 1985-12-16 |
BE868380A (en) | 1978-10-16 |
JPS5914485B2 (en) | 1984-04-04 |
FR2429230A1 (en) | 1980-01-18 |
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