CA2473980A1 - Resin composition and method for producing the same - Google Patents

Resin composition and method for producing the same Download PDF

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Publication number
CA2473980A1
CA2473980A1 CA002473980A CA2473980A CA2473980A1 CA 2473980 A1 CA2473980 A1 CA 2473980A1 CA 002473980 A CA002473980 A CA 002473980A CA 2473980 A CA2473980 A CA 2473980A CA 2473980 A1 CA2473980 A1 CA 2473980A1
Authority
CA
Canada
Prior art keywords
resin composition
ethylene
vinyl alcohol
alcohol copolymer
mol
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
CA002473980A
Other languages
French (fr)
Other versions
CA2473980C (en
Inventor
Kenji Nakano
Naohiko Uchiumi
Kaoru Ikeda
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
Publication of CA2473980A1 publication Critical patent/CA2473980A1/en
Application granted granted Critical
Publication of CA2473980C publication Critical patent/CA2473980C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • C08F216/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical
    • C08F216/02—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical by an alcohol radical
    • C08F216/04—Acyclic compounds
    • C08F216/06—Polyvinyl alcohol ; Vinyl alcohol
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
    • C08L29/02—Homopolymers or copolymers of unsaturated alcohols
    • C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • C08L23/0861—Saponified vinylacetate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]

Abstract

The present invention is directed to a resin composition superior in barrier properties and also superior in flexibility, secondary processability and interlayer adhesiveness. The present invention is also directed to an environmentally friendly method for producing a resin composition, the method releasing no carboxylic acid such as acetic acid to the peripheral environment. The invention provides an EVOH resin composition (F) which has a content of an alkali metal salt (A), in terms of the alkali metal, of 0.1 to 20 µmol/g and a content of a carboxyl acid or its salt (C), in terms of carboxylate radical, of 2 µmol/g or less and which has an ethylene content of 5 to 60 mol% and a saponification degree of from 80 to 99 mol%. In addition, the invention provides a resin composition comprising the EVOH
resin composition (F) and an EVOH having an ethylene content of 5 to 60 mol% and a degree of saponification of 99.2 to 100 mol%.

Claims (30)

1. An ethylene-vinyl alcohol copolymer resin composition (F) which has a content of an alkali metal salt (A), in terms of the alkali metal, of 0.1 to 20 µmol/g and a content of a carboxyl acid or its salt (C) , in terms of carboxylate radical, of 2 µmol/g or less and which has an ethylene content of 5 to 60 mol%
and a saponification degree of from 80 to 99 mol%.
2. The ethylene-vinyl alcohol copolymer resin composition (F) according to claim 1, wherein the ethylene content is 47 to 60 mol%.
3. The ethylene-vinyl alcohol copolymer resin composition (F) according to claim 1 or 2, wherein the alkali metal salt (A) is a potassium salt.
4. The ethylene-vinyl alcohol copolymer resin composition (F) according to any one of claims 1-3, wherein the composition (F) has a content of an alkaline earth metal salt (E), in terms of the alkaline earth metal, of 0.25 µmol/g or less.
5. A molded article comprising the ethylene-vinyl alcohol copolymer resin composition (F) according to any one of claims 1-4.
6. A film comprising the ethylene-vinyl alcohol copolymer resin composition (F) according to any one of claims 1-4.
7. A blow molded container comprising the ethylene-vinyl alcohol copolymer resin composition (F) according to any one of claims 1-4.
8. A thermoformed container comprising the ethylene-vinyl alcohol copolymer resin composition (F) according to any one of claims 1-4.
9. A multilayer structure which contains at least one layer comprising the ethylene-vinyl alcohol copolymer resin composition (F) according to any one of claims 1-4.
10. A resin composition comprising: 1 to 99% by weight of an ethylene-vinyl alcohol copolymer resin composition (F) having a content of an alkali metal salt (A) , in terms of the alkali metal, of 0.1 to 20 µmol/g and a content of a carboxyl acid or its salt (C) , in terms of carboxylate radical, of 2 µmol/g or less and also having an ethylene content of 5 to 60 mol% and a saponification degree of from 80 to 99 mol%, and 1 to 99% by weight of another thermoplastic resin (G).
11. The resin composition according to claim 10, wherein the thermoplastic resin (G) is an ethylene-vinyl alcohol copolymer having an ethylene content of 5 to 60 mol% and a degree of saponification of 99.2 to 100 mol%.
12. A molded article comprising the resin composition according to claim 10 or 11.
13. A film comprising the resin composition according to claim 10 or 11.
14. A blow molded container comprising the resin composition according to claim 10 or 11.
15. A thermoformed container comprising the resin composition according to claim 10 or 11.
16. A multilayer structure which contains at least one layer comprising the resin composition according to claim 10 or 11.
17. A method for producing an ethylene-vinyl alcohol copolymer resin composition (F), wherein an ethylene-vinyl alcohol copolymer resin having an ethylene content of 5 to 60 mol% and a degree of saponification of 80 to 99 mol% is contacted with an aqueous solution containing an alkali metal salt (A) and carbon dioxide gas.
18. The method for producing an ethylene-vinyl alcohol copolymer resin composition (F) according to claim 17, wherein the ethylene content of the ethylene-vinyl alcohol copolymer is 47 to 60 mol%.
19. A method for producing a molded article, wherein an ethylene-vinyl alcohol copolymer resin composition (F) produced by the method according to claim 17 or 18 is melt molded.
20. A method for producing a film, wherein an ethylene-vinyl alcohol copolymer resin composition (F) produced by the method according to claim 17 or 18 is melt molded.
21. A method for producing a blow molded container, wherein an ethylene-vinyl alcohol copolymer resin composition (F) produced by the method according to claim 17 or 18 is used.
22. A method for producing a thermoformed container, wherein an ethylene-vinyl alcohol copolymer resin composition (F) produced by the method according to claim 17 or 18 is used.
23. A method for producing a multilayer structure, wherein an ethylene-vinyl alcohol copolymer resin composition (F) produced by the method according to claim 17 or 18 is laminated with a thermoplastic resin.
24. A method for producing a resin composition, wherein an ethylene-vinyl alcohol copolymer resin having an ethylene content of 5 to 60 mol% and a degree of saponification of 80 to 99 mol% is contacted with an aqueous solution containing an alkali metal salt (A) and carbon dioxide gas and then is melt kneaded with another thermoplastic resin (G).
25. The method for producing a resin composition according to claim 24, wherein the thermoplastic resin (G) is an ethylene-vinyl alcohol copolymer having an ethylene content of 5 to 60 mol% and a degree of saponification of 99.2 to 100 mol%.
26. A method for producing a molded article, wherein a resin composition produced by the method according to claim 24 or 25 is melt molded.
27. A method for producing a film, wherein a resin composition produced by the method according to claim 24 or 25 is melt molded.
28. A method for producing a blow molded container, wherein a resin composition produced by the method according to claim 24 or 25 is used.
29. A method for producing a thermoformed container, wherein a resin composition produced by the method according to claim 24 or 25 is used.
30. A method for producing a multilayer structure, wherein a resin composition produced by the method according to claim 24 or 25 is laminated with a thermoplastic resin.
CA2473980A 2003-08-07 2004-07-13 Resin composition and method for producing the same Active CA2473980C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003-288396 2003-08-07
JP2003288396 2003-08-07

Publications (2)

Publication Number Publication Date
CA2473980A1 true CA2473980A1 (en) 2005-02-07
CA2473980C CA2473980C (en) 2010-11-02

Family

ID=33550038

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2473980A Active CA2473980C (en) 2003-08-07 2004-07-13 Resin composition and method for producing the same

Country Status (8)

Country Link
US (2) US6921790B2 (en)
EP (1) EP1505119B1 (en)
KR (1) KR101076619B1 (en)
CN (1) CN100410313C (en)
AT (1) ATE425218T1 (en)
CA (1) CA2473980C (en)
DE (1) DE602004019852D1 (en)
TW (1) TWI347965B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003211473A1 (en) * 2002-02-18 2003-09-04 Kuraray Co., Ltd. Ethylene-vinyl alcohol copolymer resin compositions and process for production thereof
KR100556503B1 (en) * 2002-11-26 2006-03-03 엘지전자 주식회사 Control Method of Drying Time for Dryer
CN101321976B (en) * 2005-12-06 2012-01-11 Nok株式会社 Rod sealing system
CN101910293B (en) * 2007-12-28 2012-07-04 日本合成化学工业株式会社 Process for production of ethylene-vinyl alcohol copolymer composition, and process for production of ethylene-vinyl alcohol copolymer pellet
WO2009084510A1 (en) * 2007-12-28 2009-07-09 The Nippon Synthetic Chemical Industry Co., Ltd. Process for production of ethylene-vinyl alcohol copolymer composition, and process for production of ethylene-vinyl alcohol copolymer pellet
US8722785B2 (en) * 2008-07-02 2014-05-13 The Nippon Synthetic Chemical Industry Co., Ltd. Process for producing EVOH composite
US20100080943A1 (en) * 2008-09-30 2010-04-01 E. I. Du Pont De Nemours And Company Ethylene vinyl alcohol composition with metal carboxylate
WO2012005288A1 (en) * 2010-07-09 2012-01-12 日本合成化学工業株式会社 Saponified ethylene/vinyl ester copolymer composition and multilayer structure using the composition
CN105722760B (en) * 2013-09-20 2017-12-15 株式会社可乐丽 Thermoformed containers and its manufacture method
CN105934477B (en) 2014-01-31 2019-04-12 株式会社可乐丽 Ethylene-vinyl alcohol copolymer resin compositions and its manufacturing method
US11667761B2 (en) * 2015-12-24 2023-06-06 Mitsubishi Chemical Corporation Ethylene-vinyl alcohol copolymer composition pellet and process for producing said ethylene-vinyl alcohol copolymer composition pellet
CN109312136B (en) * 2016-06-29 2021-08-10 株式会社可乐丽 Resin composition, extrusion molded article, injection molded article, and blow molded article
EP3647359B1 (en) * 2017-06-27 2023-10-25 Mitsubishi Chemical Corporation Ethylene-vinyl alcohol copolymer composition, ethylene-vinyl alcohol copolymer composition for melt forming, pellets, and multilayer structure
US11021599B1 (en) * 2019-12-24 2021-06-01 Chang Chun Petrochemical Co., Ltd Ethylene-vinyl alcohol copolymer resin composition, film, and multi-layer structure comprising the same, as well as methods thereof

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5272200A (en) * 1991-02-15 1993-12-21 Kuraray Co., Ltd. Aqueous dispersion and substrate coated with the same
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
JP3895010B2 (en) * 1997-07-25 2007-03-22 日本合成化学工業株式会社 Resin composition and laminate thereof
CA2283989C (en) * 1998-09-28 2005-11-08 Kuraray Co., Ltd. Multilayered film
ES2386666T3 (en) * 1998-10-07 2012-08-24 Kuraray Co., Ltd. Multilayer structure and process to produce it
CA2321320C (en) * 1999-09-29 2006-08-15 Kuraray Co., Ltd. Resin composition of good long-run workability comprising ethylene-vinyl alcohol copolymer
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
US6743891B2 (en) * 2001-01-22 2004-06-01 Kuraray Co., Ltd. Method for producing ethylene-vinyl alcohol copolymer resin composition
AU2003211473A1 (en) 2002-02-18 2003-09-04 Kuraray Co., Ltd. Ethylene-vinyl alcohol copolymer resin compositions and process for production thereof

Also Published As

Publication number Publication date
EP1505119B1 (en) 2009-03-11
TW200512248A (en) 2005-04-01
US6921790B2 (en) 2005-07-26
CN100410313C (en) 2008-08-13
CA2473980C (en) 2010-11-02
TWI347965B (en) 2011-09-01
EP1505119A1 (en) 2005-02-09
US20050032955A1 (en) 2005-02-10
ATE425218T1 (en) 2009-03-15
US20050186374A1 (en) 2005-08-25
KR20050016079A (en) 2005-02-21
KR101076619B1 (en) 2011-10-26
DE602004019852D1 (en) 2009-04-23
CN1594411A (en) 2005-03-16

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