JPS54114591A - Purification of polyolefin - Google Patents
Purification of polyolefinInfo
- Publication number
- JPS54114591A JPS54114591A JP2239678A JP2239678A JPS54114591A JP S54114591 A JPS54114591 A JP S54114591A JP 2239678 A JP2239678 A JP 2239678A JP 2239678 A JP2239678 A JP 2239678A JP S54114591 A JPS54114591 A JP S54114591A
- Authority
- JP
- Japan
- Prior art keywords
- acid derivatives
- derivative
- treated
- catalyst
- polyolefin
- 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
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE:To remove the residue of a Ziegler catalyst with water extraction, easily and completely, by treating a hydrocarbon suspension of a polyolefin treated with an alcohol, with a specific hydrolyzable carbonamide, e.g. urea, etc.. CONSTITUTION:A hydrocarbon suspension of a polyolefin prepared by using a Ziegler catalyst, is treated with an alcohol to deactivate the catalyst residue or to make resistant to hydrolysis. Subsequently, the product is treated with a hydrolyzable compound (>=0.1 mole on the basis of 1 mole of the whole amount of the metal atom in the catalyst) capable of liberating an alkali residual group and/or a hydroxyl group into the water phase, and selected from carbonamides, e.g. urea (derivative), carboxylic acid derivatives, imino acid derivatives, carbamic acid derivatives, iminodicarboxylic acid derivatives, nitrilocarbonic acid (derivative), isourea (derivative), carbonic acid derivatives of hydrazine, etc., and successively extracted with water.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2239678A JPS54114591A (en) | 1978-02-27 | 1978-02-27 | Purification of polyolefin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2239678A JPS54114591A (en) | 1978-02-27 | 1978-02-27 | Purification of polyolefin |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54114591A true JPS54114591A (en) | 1979-09-06 |
JPS5745248B2 JPS5745248B2 (en) | 1982-09-27 |
Family
ID=12081490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2239678A Granted JPS54114591A (en) | 1978-02-27 | 1978-02-27 | Purification of polyolefin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54114591A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0281209A2 (en) * | 1987-03-06 | 1988-09-07 | Stamicarbon B.V. | Process for applying a plastic covering around a tube- or wire-shaped object |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59172026A (en) * | 1983-03-18 | 1984-09-28 | Fujitsu Ltd | Voltage detecting circuit for backup battery |
JPH0214250U (en) * | 1988-07-08 | 1990-01-29 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4942674A (en) * | 1972-08-30 | 1974-04-22 |
-
1978
- 1978-02-27 JP JP2239678A patent/JPS54114591A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4942674A (en) * | 1972-08-30 | 1974-04-22 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0281209A2 (en) * | 1987-03-06 | 1988-09-07 | Stamicarbon B.V. | Process for applying a plastic covering around a tube- or wire-shaped object |
EP0281209A3 (en) * | 1987-03-06 | 1990-10-10 | Stamicarbon B.V. | Process for applying a plastic covering around a tube- or wire-shaped object |
Also Published As
Publication number | Publication date |
---|---|
JPS5745248B2 (en) | 1982-09-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20040713 |