JPS553443A - Preparation of propylene copolymer - Google Patents

Preparation of propylene copolymer

Info

Publication number
JPS553443A
JPS553443A JP7583778A JP7583778A JPS553443A JP S553443 A JPS553443 A JP S553443A JP 7583778 A JP7583778 A JP 7583778A JP 7583778 A JP7583778 A JP 7583778A JP S553443 A JPS553443 A JP S553443A
Authority
JP
Japan
Prior art keywords
counter
column
current washing
pref
organo
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
JP7583778A
Other languages
Japanese (ja)
Other versions
JPS6312088B2 (en
Inventor
Akinobu Shiga
Noriyoshi Matsuyama
Masahiro Kakugo
Yukio Naito
Akira Fuse
Masaharu Nishioka
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 JP7583778A priority Critical patent/JPS553443A/en
Priority to BR7903705A priority patent/BR7903705A/en
Priority to DE2923754A priority patent/DE2923754C3/en
Priority to IT49388/79A priority patent/IT1193760B/en
Priority to GB7920608A priority patent/GB2027720B/en
Priority to BE0/195712A priority patent/BE876947A/en
Priority to CA000329679A priority patent/CA1198355A/en
Priority to FR7915301A priority patent/FR2428651B1/en
Priority to NL7904659A priority patent/NL190783C/en
Publication of JPS553443A publication Critical patent/JPS553443A/en
Priority to GB08137613A priority patent/GB2105651B/en
Priority to SG567/83A priority patent/SG56783G/en
Priority to CA000469444A priority patent/CA1215198A/en
Publication of JPS6312088B2 publication Critical patent/JPS6312088B2/ja
Granted legal-status Critical Current

Links

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  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE: To prepare the title copolymer having excellent heat-sealability, and useful as packaging film, etc., by copolymerizing propylene in the presence of a specific catalsyt, and washing the polymer slurry with the monomer in a counter- current washing column.
CONSTITUTION: Propylene is copolymerized with a 4-18C α-olefin (pref. 3-30 wt% of butene-1) and a small amount of ethylene (pref. 0-5 wt%) in the presence of a catalyst composed of (A) a titanium trichloride obtained by reducing titanium tetrachloride with an organo-aluminum compound, followed by activating the product, and (B) an organo-aluminum compound. The resulting polymer slurry is extracted from the reaction system, and introduced to the top of a counter-current washing column and brought into contact with liquid monomer introduced to the bottom of the column.
EFFECT: Anti-blocking properties and transparency of the copolymer are improved by the counter-current washing.
COPYRIGHT: (C)1980,JPO&Japio
JP7583778A 1978-06-14 1978-06-21 Preparation of propylene copolymer Granted JPS553443A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
JP7583778A JPS553443A (en) 1978-06-21 1978-06-21 Preparation of propylene copolymer
BR7903705A BR7903705A (en) 1978-06-14 1979-06-12 PROCESS FOR THE PRODUCTION OF A PROPYLENE COPOLYMER, THE COPOLIMER FOR THE PRODUCTION OF A PROPYLENE COPOLYMER, PROPYLENE COPOLYMER AND LAYER POLYPROPYLENE LAYER PROPYLENE IMER AND MULTIPLE LAYER POLYPROPYLENE FILM
DE2923754A DE2923754C3 (en) 1978-06-14 1979-06-12 Process for producing a propylene copolymer and its use in a multi-layer polypropylene-propylene copolymer film
IT49388/79A IT1193760B (en) 1978-06-14 1979-06-12 PROCEDURE FOR PRODUCING MULTI-LAYER PROPYLENE COPOLYMERS AND POLYPROPYLENE FILM WITH IT OBTAINED
GB7920608A GB2027720B (en) 1978-06-14 1979-06-13 Process for producing a propylene copolymer and a multilayer polypropylene film
BE0/195712A BE876947A (en) 1978-06-14 1979-06-13 PROCESS FOR THE PRODUCTION OF COPOLYMERS OF PROPYLENE AND MULTI-LAYER POLYPROPYLENE FILM
CA000329679A CA1198355A (en) 1978-06-14 1979-06-13 Multilayer polypropylene film
FR7915301A FR2428651B1 (en) 1978-06-14 1979-06-14 PROCESS FOR PRODUCING PROPYLENE COPOLYMERS AND A MULTI-LAYERED POLYPROPYLENE FILM
NL7904659A NL190783C (en) 1978-06-14 1979-06-14 Process for the preparation of a propylene copolymer and multilayer polypropylene film.
GB08137613A GB2105651B (en) 1978-06-14 1981-12-14 Multi-layer polypropylene film
SG567/83A SG56783G (en) 1978-06-14 1983-09-07 Process for producing propylene copolymers
CA000469444A CA1215198A (en) 1978-06-14 1984-12-05 Process for producing propylene copolymers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7583778A JPS553443A (en) 1978-06-21 1978-06-21 Preparation of propylene copolymer

Publications (2)

Publication Number Publication Date
JPS553443A true JPS553443A (en) 1980-01-11
JPS6312088B2 JPS6312088B2 (en) 1988-03-17

Family

ID=13587699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7583778A Granted JPS553443A (en) 1978-06-14 1978-06-21 Preparation of propylene copolymer

Country Status (1)

Country Link
JP (1) JPS553443A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60147334A (en) * 1984-01-12 1985-08-03 住友化学工業株式会社 Multilayer packaging film
JPS61202A (en) * 1984-06-13 1986-01-06 Mitsui Toatsu Chem Inc Washing of polypropylene
JPS6339943A (en) * 1986-08-04 1988-02-20 Sumitomo Chem Co Ltd Polypropylene composition and sheet
JPS63276541A (en) * 1987-05-08 1988-11-14 Sumitomo Chem Co Ltd Polypropylene laminate film

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4935487A (en) * 1972-07-20 1974-04-02
JPS537786A (en) * 1976-07-09 1978-01-24 Sumitomo Chem Co Ltd Preparation of propylene polymer or copolymer
JPS5326883A (en) * 1976-08-24 1978-03-13 Hoechst Ag Copolymers film and process for producing same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4935487A (en) * 1972-07-20 1974-04-02
JPS537786A (en) * 1976-07-09 1978-01-24 Sumitomo Chem Co Ltd Preparation of propylene polymer or copolymer
JPS5326883A (en) * 1976-08-24 1978-03-13 Hoechst Ag Copolymers film and process for producing same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60147334A (en) * 1984-01-12 1985-08-03 住友化学工業株式会社 Multilayer packaging film
JPH055660B2 (en) * 1984-01-12 1993-01-22 Sumitomo Chemical Co
JPS61202A (en) * 1984-06-13 1986-01-06 Mitsui Toatsu Chem Inc Washing of polypropylene
JPH0526801B2 (en) * 1984-06-13 1993-04-19 Mitsui Toatsu Chemicals
JPS6339943A (en) * 1986-08-04 1988-02-20 Sumitomo Chem Co Ltd Polypropylene composition and sheet
JPS63276541A (en) * 1987-05-08 1988-11-14 Sumitomo Chem Co Ltd Polypropylene laminate film

Also Published As

Publication number Publication date
JPS6312088B2 (en) 1988-03-17

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