Title:
POWDERY COATING MATERIAL COMPOSITION
Document Type and Number:
Japanese Patent JP3941128
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain the subject composition comprising specific powder containing specified amounts of a specific fluoride vinylidene copolymer and a specific methyl methacrylate copolymer, excellent in flexing resistance and suitable for coating a metallic board in a post processing, etc.
SOLUTION: This composition is obtained by compounding (A) 100 pts.wt. of a fluoride vinylidene copolymer having a melting point of ≤150°C, a degree of crystallization of ≤35% and a weight average molecular weight of 1×104 to 5×105 and (B) 10-400 pts.wt. of a methyl methacrylate copolymer having a glass transition temperature of ≤110°C and a weight average molecular weight of 1×104 to 5×105. The obtained powder has an average particle diameter of 1-100μm and an apparent density of 0.2-1g/ml. In order to produce the powder, 10-400 pts.wt. of a mixture of methyl methacrylate and a monomer which is copolymerizable with the methyl methacrylate is subjected to seed polymerization on the particles of the component A in an aqueous dispersion liquid containing 100 pts.wt. of the particles.
Inventors:
Nobuhiko Tsuda
Ryuji Iwakiri
Ryuji Iwakiri
Application Number:
JP32908195A
Publication Date:
July 04, 2007
Filing Date:
December 18, 1995
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
C09D5/03; C08F259/06; C09D127/16; C09D127/12; C09D133/04; C09D133/12; C09D151/06; C08L27/16; C08L33/12; (IPC1-7): C09D5/03; C09D5/03; C09D127/16; C09D133/12
Domestic Patent References:
| JP7216264A | ||||
| JP4227743A | ||||
| JP7216263A |
Foreign References:
| US4770939 | ||||
| EP0284996B1 |
Attorney, Agent or Firm:
Sota Asahina
Kei Saki
Kei Saki