JPS5620044A - Stabilization of olefin/vinyl acetate copolymer hydrolyzate against heat - Google Patents

Stabilization of olefin/vinyl acetate copolymer hydrolyzate against heat

Info

Publication number
JPS5620044A
JPS5620044A JP5310980A JP5310980A JPS5620044A JP S5620044 A JPS5620044 A JP S5620044A JP 5310980 A JP5310980 A JP 5310980A JP 5310980 A JP5310980 A JP 5310980A JP S5620044 A JPS5620044 A JP S5620044A
Authority
JP
Japan
Prior art keywords
olefin
hydrolyzate
vinyl acetate
copolymer hydrolyzate
acetate copolymer
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
JP5310980A
Other languages
Japanese (ja)
Other versions
JPS5848582B2 (en
Inventor
Kazuyori Yoshimi
Hiroshi Iwasaki
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 JP5310980A priority Critical patent/JPS5848582B2/en
Publication of JPS5620044A publication Critical patent/JPS5620044A/en
Publication of JPS5848582B2 publication Critical patent/JPS5848582B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain an olefin/vinyl acetate copolymer hydrolyzate which is stable against heat, resistant to discoloration and easy to heat-mold, by adding a specific amount of acetic acid and sodium acetate to an olefin/vinyl acetate copolymer hydrolyzate.
CONSTITUTION: To a hydrolyzate of an olefin/vinyl acetate copolymer having a C5-olefin content of 5W95mol%, are added 0.003W1wt% of (B) sodium acetate and (A) acetic acid in an amount satisfying the equation, wherein [I] is the weight percentage of B contained in the copolymer hydrolyzate or its derivative, [II] is the MW of B, [III] is the weight percentage of A contained in the copolymer hydrolyzate or its derivative and [IV] is the MW of A. When the acetic acid content is lower than that given by the equation, the copolymer hydrolyzate, upon heating, discolors pale yellow to pink, and lowers in melt miscosity. This causes trubles in heat- molding. When the sodium acetate content is equal to or higher than 1wt%, the discoloration and decomposition of the copolymer hydrolyzate are accelerated, when the hydrolyzate is heated.
COPYRIGHT: (C)1981,JPO&Japio
JP5310980A 1980-04-21 1980-04-21 Method for thermal stabilization of saponified olefin-vinyl acetate copolymer Expired JPS5848582B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5310980A JPS5848582B2 (en) 1980-04-21 1980-04-21 Method for thermal stabilization of saponified olefin-vinyl acetate copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5310980A JPS5848582B2 (en) 1980-04-21 1980-04-21 Method for thermal stabilization of saponified olefin-vinyl acetate copolymer

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP1726575A Division JPS5191988A (en) 1975-02-10 1975-02-10 NETSUANTEISEIRYOKONAOREFUINNSAKUSANBINIRUKYOJUGOTAIKENKABUTSUNOSEIZOHOHO

Publications (2)

Publication Number Publication Date
JPS5620044A true JPS5620044A (en) 1981-02-25
JPS5848582B2 JPS5848582B2 (en) 1983-10-29

Family

ID=12933619

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5310980A Expired JPS5848582B2 (en) 1980-04-21 1980-04-21 Method for thermal stabilization of saponified olefin-vinyl acetate copolymer

Country Status (1)

Country Link
JP (1) JPS5848582B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1149917A (en) * 1997-08-06 1999-02-23 Nippon Synthetic Chem Ind Co Ltd:The Saponified ethylene-vinyl acetate copolymer composition and molded product therefrom
EP0892006A3 (en) * 1997-07-18 1999-07-28 Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha Hydrous pellets of ethylene-vinyl acetate copolymer hydrolyzate, production thereof and moldings from such hydrous pellets
JP2000026690A (en) * 1998-07-07 2000-01-25 Nippon Synthetic Chem Ind Co Ltd:The Resin composition and its manufacture and its application
JP2001019712A (en) * 1999-07-06 2001-01-23 Nippon Synthetic Chem Ind Co Ltd:The Saponified substance of ethylene-vinyl acetate copolymer and laminate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0892006A3 (en) * 1997-07-18 1999-07-28 Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha Hydrous pellets of ethylene-vinyl acetate copolymer hydrolyzate, production thereof and moldings from such hydrous pellets
JPH1149917A (en) * 1997-08-06 1999-02-23 Nippon Synthetic Chem Ind Co Ltd:The Saponified ethylene-vinyl acetate copolymer composition and molded product therefrom
JP2000026690A (en) * 1998-07-07 2000-01-25 Nippon Synthetic Chem Ind Co Ltd:The Resin composition and its manufacture and its application
JP2001019712A (en) * 1999-07-06 2001-01-23 Nippon Synthetic Chem Ind Co Ltd:The Saponified substance of ethylene-vinyl acetate copolymer and laminate

Also Published As

Publication number Publication date
JPS5848582B2 (en) 1983-10-29

Similar Documents

Publication Publication Date Title
JPS5759971A (en) Wood adhesive
JPS549269A (en) Carboxylic acid esters, process for their preparation and insecticides and miticides containing the same as active constituents
EP0178797A3 (en) Ionomeric polymer compositions
JPS5785366A (en) 2-mercaptoquinone derivative
JPS5728121A (en) Production of low polymerization-degree polyvinyl acetate and low polymerization-degree polyvinyl alcohol
JPS5620044A (en) Stabilization of olefin/vinyl acetate copolymer hydrolyzate against heat
JPS5616534A (en) Stabilized polymer composition
JPS5757728A (en) Non-polluting composite stabilizer
JPS5589347A (en) Prevention of discoloration of polyvinyl chloride resin
JPS53110647A (en) Improvement of water resistance of polyvinyl alcohol type polymer
JPS57202334A (en) Film for agriculture
JPS54127408A (en) Control of browning of phosphorus lipide by heating
JPS57164175A (en) Impact-resistant instantaneous adhesive composition
JPS5411190A (en) Suspension polymerization of vinyl chloride
JPS54127491A (en) Production of polyvinyl acetate emulsion
JPS53125457A (en) Flame-retardant styrene resin composition
JPS568437A (en) Improving method of transparency of saponified product of ethylene-vinyl acetate copolymer
JPS5763346A (en) Crosslinkable vinyl chloride pasty resin composition
JPS5664772A (en) Storage of food
JPS5318690A (en) Continous preparation of acrylonitrile polymers
JPS53120741A (en) Film-forming composition
JPS54127951A (en) Stabilization of vinyl chloride resin
JPS57133141A (en) Vinyl acetate polymeric emulsion having improved film-forming property at low temperature
JPS5589344A (en) Stabilizing agent for halogen-containing resin
JPS5625166A (en) 5-fluorouracil derivative