Process for producing polymer powder from molten mixture of poly

Details Process for producing polymer powder from molten mixture of poly Process for producing polymer powder from molten mixture of poly

1989-10-11

1992-08-04

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528310, 528335, C08G 6946

Patent

active

051359910

ABSTRACT:
A polymer powder is produced by separately melting two or more of polymers and monomers which are reactive with each other, spraying a mixture of the polymers and the monomers, while continuously mixing them with each other, the mixture being solid at a normal temperature, having a melt viscosity of 1,000 cps or below at 300 degree C., then cooling the sprayed mixture to obtain a powder thereof, and solid phase-polymerizing it to obtain the polymer powder. It is useful for powder coating.

REFERENCES:
patent: 4555566 (1985-11-01), Arita et al.
Condensed Chemical Dictionary, Eighth Edition, 1971, p. 644.

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