JPS55155026A - Production of truely spherical powder of saponified product of ethylene-vinyl acetate copolymer or carboxylic acid-modified substance thereof - Google Patents

Production of truely spherical powder of saponified product of ethylene-vinyl acetate copolymer or carboxylic acid-modified substance thereof

Info

Publication number
JPS55155026A
JPS55155026A JP6243379A JP6243379A JPS55155026A JP S55155026 A JPS55155026 A JP S55155026A JP 6243379 A JP6243379 A JP 6243379A JP 6243379 A JP6243379 A JP 6243379A JP S55155026 A JPS55155026 A JP S55155026A
Authority
JP
Japan
Prior art keywords
carboxylic acid
vinyl acetate
ethylene
saponified product
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.)
Pending
Application number
JP6243379A
Other languages
Japanese (ja)
Inventor
Masamitsu Nakabayashi
Fumihiro Doura
Yuzo Furukawa
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.)
Takeda Pharmaceutical Co Ltd
Original Assignee
Takeda Chemical Industries 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 Takeda Chemical Industries Ltd filed Critical Takeda Chemical Industries Ltd
Priority to JP6243379A priority Critical patent/JPS55155026A/en
Priority to US06/149,956 priority patent/US4309525A/en
Priority to DE19803018768 priority patent/DE3018768A1/en
Priority to FR8011141A priority patent/FR2457307A1/en
Priority to GB8016638A priority patent/GB2052523B/en
Priority to IT67792/80A priority patent/IT1133093B/en
Publication of JPS55155026A publication Critical patent/JPS55155026A/en
Pending legal-status Critical Current

Links

Landscapes

  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE: To produce truely spherical powder having a uniform particle diameter, by a method wherein a saponified product of ethylene-vinyl acetate copolymer or a carboxylic acid-modified substance thereof is treated with an alkylphenol-ethylene oxide adduct.
CONSTITUTION: (a) 100pts.wt. of a saponified product of ethylene-vinyl acetate copolymer having a melt index of 0.1W500g/10min, and a vinyl acetate content of not more than 70wt%, or (b) 100pts.wt. of a carboxylic acid-modified substance obtd. by reacting the saponified product with 0.1W15wt% of an unsaturated carboxylic acid or a cyclic anhydride threreof, (c) 10W 100pts.wt. of an organic solvent which has a m.p. of not lower than 80°C and can dissolve (a) or (b), and (d) 300W1,000pts.wt. of water are mixed with (e) 0.1W10pts.wt. of an alkylphenol- ethylene oxide adduct having an HLB value of 10W20. The mixt. is emulsified with stirring at a temp. of not higher than 95°C but not lower than a softening point of (a) or (b). Then the temp. is lowered to a temp. below the softening point of (a) or (b) to obtain truelyspherical powder having a particle size distribution of 70W300μ.
COPYRIGHT: (C)1980,JPO&Japio
JP6243379A 1979-05-21 1979-05-21 Production of truely spherical powder of saponified product of ethylene-vinyl acetate copolymer or carboxylic acid-modified substance thereof Pending JPS55155026A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP6243379A JPS55155026A (en) 1979-05-21 1979-05-21 Production of truely spherical powder of saponified product of ethylene-vinyl acetate copolymer or carboxylic acid-modified substance thereof
US06/149,956 US4309525A (en) 1979-05-21 1980-05-15 Production of sphere-formed powdery copolymers
DE19803018768 DE3018768A1 (en) 1979-05-21 1980-05-16 METHOD FOR PRODUCING A POWDER OF SPHERE-SHAPED PARTICLES OF HYDROLYSED AETHYLENE-VINYL ACETATE COPOLYMERISATS OR THEIR CARBOXYL-MODIFIED PRODUCTS
FR8011141A FR2457307A1 (en) 1979-05-21 1980-05-19 PROCESS FOR THE MANUFACTURE OF POWDER COPOLYMER CONSISTING OF SPHERICAL PARTICLES
GB8016638A GB2052523B (en) 1979-05-21 1980-05-20 Copolymer powder of spherical particles and the production thereof
IT67792/80A IT1133093B (en) 1979-05-21 1980-05-20 PROCEDURE FOR THE PRODUCTION OF COPOLYMER POWDER IN THE FORM OF SPHERICAL PARTICLES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6243379A JPS55155026A (en) 1979-05-21 1979-05-21 Production of truely spherical powder of saponified product of ethylene-vinyl acetate copolymer or carboxylic acid-modified substance thereof

Publications (1)

Publication Number Publication Date
JPS55155026A true JPS55155026A (en) 1980-12-03

Family

ID=13200035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6243379A Pending JPS55155026A (en) 1979-05-21 1979-05-21 Production of truely spherical powder of saponified product of ethylene-vinyl acetate copolymer or carboxylic acid-modified substance thereof

Country Status (2)

Country Link
JP (1) JPS55155026A (en)
IT (1) IT1133093B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0585929A2 (en) * 1992-09-03 1994-03-09 Sumitomo Chemical Company, Limited Agent for improving molding processability and antistatic property of thermoplastic resins and thermoplastic resin composition comprising the agent
JP2001220474A (en) * 1999-11-30 2001-08-14 Takeda Chem Ind Ltd Water-based emulsion composition and adhesive composition
JP2006022234A (en) * 2004-07-09 2006-01-26 Nof Corp ACID-MODIFIED ETHYLENE-alpha-OLEFIN COPOLYMER

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54146855A (en) * 1978-05-11 1979-11-16 Mitsui Polychemicals Ltd Production of synthetic resin powder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54146855A (en) * 1978-05-11 1979-11-16 Mitsui Polychemicals Ltd Production of synthetic resin powder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0585929A2 (en) * 1992-09-03 1994-03-09 Sumitomo Chemical Company, Limited Agent for improving molding processability and antistatic property of thermoplastic resins and thermoplastic resin composition comprising the agent
EP0585929A3 (en) * 1992-09-03 1994-06-01 Sumitomo Chemical Co Agent for improving molding processability and antistatic property of thermoplastic resins and thermoplastic resin composition comprising the agent
JP2001220474A (en) * 1999-11-30 2001-08-14 Takeda Chem Ind Ltd Water-based emulsion composition and adhesive composition
JP2006022234A (en) * 2004-07-09 2006-01-26 Nof Corp ACID-MODIFIED ETHYLENE-alpha-OLEFIN COPOLYMER

Also Published As

Publication number Publication date
IT1133093B (en) 1986-07-09
IT8067792A0 (en) 1980-05-20

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