JPS54114591A - Purification of polyolefin - Google Patents

Purification of polyolefin

Info

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
Application number
JP2239678A
Other languages
Japanese (ja)
Other versions
JPS5745248B2 (en
Inventor
Genyu Katada
Minoru Takahashi
Shozo Kawamata
Haruo Kobari
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP2239678A priority Critical patent/JPS54114591A/en
Publication of JPS54114591A publication Critical patent/JPS54114591A/en
Publication of JPS5745248B2 publication Critical patent/JPS5745248B2/ja
Granted legal-status Critical Current

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  • 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.
JP2239678A 1978-02-27 1978-02-27 Purification of polyolefin Granted JPS54114591A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4942674A (en) * 1972-08-30 1974-04-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4942674A (en) * 1972-08-30 1974-04-22

Cited By (2)

* Cited by examiner, † Cited by third party
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