JPS5641204A - Preparation of saponified ethylene-vinyl acetate copolymer - Google Patents

Preparation of saponified ethylene-vinyl acetate copolymer

Info

Publication number
JPS5641204A
JPS5641204A JP11817879A JP11817879A JPS5641204A JP S5641204 A JPS5641204 A JP S5641204A JP 11817879 A JP11817879 A JP 11817879A JP 11817879 A JP11817879 A JP 11817879A JP S5641204 A JPS5641204 A JP S5641204A
Authority
JP
Japan
Prior art keywords
vinyl acetate
acetate copolymer
saponified ethylene
saponification
ethylene
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
JP11817879A
Other languages
Japanese (ja)
Other versions
JPS6210523B2 (en
Inventor
Kenji Sato
Ichiro Nitta
Taichi Negi
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.)
Kuraray Co Ltd
Original Assignee
Kuraray 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 Kuraray Co Ltd filed Critical Kuraray Co Ltd
Priority to JP11817879A priority Critical patent/JPS5641204A/en
Publication of JPS5641204A publication Critical patent/JPS5641204A/en
Publication of JPS6210523B2 publication Critical patent/JPS6210523B2/ja
Granted legal-status Critical Current

Links

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  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE: To prepare a saponified ethylene-vinyl acetate copolymer with excellent heat resistance and moldability, by the addition of calcium acetate and a specified organic acid to a saponified ethylene-vinyl acetate copolymer, after the removal of saponification by-products.
CONSTITUTION: A saponified ethylene-vinyl acetate copolymer of ethylene contant 20W80mol% and of saponification degree ≥85%, is washed with an ion-exchange water of pH≤5 acidified with acetic acid, to remove saponification by-products. Then 0.001W0.1wt% of calcium acetate and/or magnesium acetate, and 0.001W 0.3wt% of an organic acid of boiling pt. ≥140°C under normal pressure and of PKa of 3.5W5.5, such as adipic acid or propionic acid, are added to the saponified ethylene-vinyl acetate copolymer.
EFFECT: It is possible to obtain a film free from fish eye, roughness or discoloration.
COPYRIGHT: (C)1981,JPO&Japio
JP11817879A 1979-09-13 1979-09-13 Preparation of saponified ethylene-vinyl acetate copolymer Granted JPS5641204A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11817879A JPS5641204A (en) 1979-09-13 1979-09-13 Preparation of saponified ethylene-vinyl acetate copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11817879A JPS5641204A (en) 1979-09-13 1979-09-13 Preparation of saponified ethylene-vinyl acetate copolymer

Publications (2)

Publication Number Publication Date
JPS5641204A true JPS5641204A (en) 1981-04-17
JPS6210523B2 JPS6210523B2 (en) 1987-03-06

Family

ID=14730059

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11817879A Granted JPS5641204A (en) 1979-09-13 1979-09-13 Preparation of saponified ethylene-vinyl acetate copolymer

Country Status (1)

Country Link
JP (1) JPS5641204A (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2556357A1 (en) * 1983-12-09 1985-06-14 Nippon Synthetic Chem Ind METHOD FOR FORMING A FILM OF AN ETHYLENE-HYDROLYSED VINYL ACETATE COPOLYMER
JPS6268840A (en) * 1985-09-20 1987-03-28 Toyo Seikan Kaisha Ltd Resin composition and container made of said composition
JPS62288649A (en) * 1986-04-15 1987-12-15 イー・アイ・デユポン・ドウ・ヌムール・アンド・カンパニー Polyacetal stabilizing composition
JPS6464843A (en) * 1987-09-07 1989-03-10 Kuraray Co Laminate
JPS6466262A (en) * 1987-09-07 1989-03-13 Kuraray Co Ethylene-vinyl alcohol copolymer composition
JPS6469653A (en) * 1987-09-08 1989-03-15 Kuraray Co Ethylene/vinyl alcohol copolymer composition
FR2621320A1 (en) * 1987-10-02 1989-04-07 Nippon Synthetic Chem Ind VINYL HYDROLYSIS ETHYLENE-ACETATE COPOLYMER
EP0863163A1 (en) * 1997-03-03 1998-09-09 Rohm And Haas Company Polymer emulsions and polymer powders therefrom
WO1999005213A1 (en) * 1997-07-25 1999-02-04 Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha Resin composition, process for preparing the same, and laminate containing layer of said resin composition
JPH11293079A (en) * 1998-04-08 1999-10-26 Nippon Synthetic Chem Ind Co Ltd:The Preparation of resin composition
JP2000026689A (en) * 1998-07-07 2000-01-25 Nippon Synthetic Chem Ind Co Ltd:The Resin composition and its manufacture and use
EP1067152A1 (en) * 1999-07-07 2001-01-10 Kuraray Co., Ltd. Resin composition comprising ethylene-vinyl alcohol copolymer with good interlayer adhesiveness
EP1090953A1 (en) * 1999-09-29 2001-04-11 Kuraray Co., Ltd. Resin composition of good long-run workability comprising ethylene-vinyl alcohol copolymer
US6232382B1 (en) 1997-10-02 2001-05-15 Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha Saponified ethylene-vinyl acetate copolymer resin composition and laminate having a layer of said resin composition
US6238606B1 (en) 1997-09-08 2001-05-29 Nippon Gohsei Kagaku Kogyo Process for preparing pellets of saponified ethylene/vinyl acetate copolymer
EP1108744A2 (en) * 1999-12-16 2001-06-20 Kuraray Co., Ltd. Ethylene-vinyl alcohol copolymer resin composition of improved long-run workability, and its shaped articles
WO2002053639A1 (en) * 2000-12-28 2002-07-11 Kuraray Co., Ltd. Ethylene/vinyl alcohol copolymer resin composition
EP2196312A2 (en) 1998-10-07 2010-06-16 Kuraray Co., Ltd. Multilayer structure and process for producing the same
WO2022078458A1 (en) * 2020-10-15 2022-04-21 中国石油化工股份有限公司 Ethylene-vinyl alcohol copolymer composition and preparation method therefor

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2556357A1 (en) * 1983-12-09 1985-06-14 Nippon Synthetic Chem Ind METHOD FOR FORMING A FILM OF AN ETHYLENE-HYDROLYSED VINYL ACETATE COPOLYMER
JPS6268840A (en) * 1985-09-20 1987-03-28 Toyo Seikan Kaisha Ltd Resin composition and container made of said composition
JPH0717810B2 (en) * 1986-04-15 1995-03-01 イ−・アイ・デユポン・デ・ニモアス・アンド・カンパニ− Stabilized composition of polyacetal
JPS62288649A (en) * 1986-04-15 1987-12-15 イー・アイ・デユポン・ドウ・ヌムール・アンド・カンパニー Polyacetal stabilizing composition
JPS6464843A (en) * 1987-09-07 1989-03-10 Kuraray Co Laminate
EP0308703A2 (en) * 1987-09-07 1989-03-29 Kuraray Co., Ltd. Ethylene-vinyl alcolhol co-polymer composition and multilayered structure utilizing the same
US5360670A (en) * 1987-09-07 1994-11-01 Kuraray Co., Ltd. Multilayered structure containing an ethylene-vinyl alcohol layer
JPS6466262A (en) * 1987-09-07 1989-03-13 Kuraray Co Ethylene-vinyl alcohol copolymer composition
JPS6469653A (en) * 1987-09-08 1989-03-15 Kuraray Co Ethylene/vinyl alcohol copolymer composition
FR2621320A1 (en) * 1987-10-02 1989-04-07 Nippon Synthetic Chem Ind VINYL HYDROLYSIS ETHYLENE-ACETATE COPOLYMER
EP0863163A1 (en) * 1997-03-03 1998-09-09 Rohm And Haas Company Polymer emulsions and polymer powders therefrom
WO1999005213A1 (en) * 1997-07-25 1999-02-04 Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha Resin composition, process for preparing the same, and laminate containing layer of said resin composition
US6174949B1 (en) 1997-07-25 2001-01-16 Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha Resin composition, process for preparing the same, and laminate containing layer of said resin composition
US6238606B1 (en) 1997-09-08 2001-05-29 Nippon Gohsei Kagaku Kogyo Process for preparing pellets of saponified ethylene/vinyl acetate copolymer
US6232382B1 (en) 1997-10-02 2001-05-15 Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha Saponified ethylene-vinyl acetate copolymer resin composition and laminate having a layer of said resin composition
JPH11293079A (en) * 1998-04-08 1999-10-26 Nippon Synthetic Chem Ind Co Ltd:The Preparation of resin composition
JP2000026689A (en) * 1998-07-07 2000-01-25 Nippon Synthetic Chem Ind Co Ltd:The Resin composition and its manufacture and use
EP2196312A2 (en) 1998-10-07 2010-06-16 Kuraray Co., Ltd. Multilayer structure and process for producing the same
EP1067152A1 (en) * 1999-07-07 2001-01-10 Kuraray Co., Ltd. Resin composition comprising ethylene-vinyl alcohol copolymer with good interlayer adhesiveness
EP1090953A1 (en) * 1999-09-29 2001-04-11 Kuraray Co., Ltd. Resin composition of good long-run workability comprising ethylene-vinyl alcohol copolymer
US9346940B2 (en) 1999-09-29 2016-05-24 Kuraray Co., Ltd. Resin composition of good long-run workability comprising ethylene-vinyl alcohol copolymer
EP1108744A2 (en) * 1999-12-16 2001-06-20 Kuraray Co., Ltd. Ethylene-vinyl alcohol copolymer resin composition of improved long-run workability, and its shaped articles
US6964990B2 (en) 1999-12-16 2005-11-15 Kuraray Co., Ltd. Ethylene-vinyl alcohol copolymer resin composition of improved long-run workability, and its shaped articles
EP1108744B1 (en) * 1999-12-16 2006-10-11 Kuraray Co., Ltd. Ethylene-vinyl alcohol copolymer resin composition of improved long-run workability, and its shaped articles
WO2002053639A1 (en) * 2000-12-28 2002-07-11 Kuraray Co., Ltd. Ethylene/vinyl alcohol copolymer resin composition
WO2022078458A1 (en) * 2020-10-15 2022-04-21 中国石油化工股份有限公司 Ethylene-vinyl alcohol copolymer composition and preparation method therefor

Also Published As

Publication number Publication date
JPS6210523B2 (en) 1987-03-06

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