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 thereofInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54146855A (en) * | 1978-05-11 | 1979-11-16 | Mitsui Polychemicals Ltd | Production of synthetic resin powder |
-
1979
- 1979-05-21 JP JP6243379A patent/JPS55155026A/en active Pending
-
1980
- 1980-05-20 IT IT67792/80A patent/IT1133093B/en active
Patent Citations (1)
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)
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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