(EN) PURPOSE: Provided are a foamed polystyrene bead having functional skin layer process with various functions such as flame-retardancy, anti-bacterial or coloring properties by coating surface of polystyrene particles with functional coating agent composition.
CONSTITUTION: The foamed polystyrene particle comprises functional skin layer consisting of functional coating material including 10-99.9 wt.% of vinyl acetate resin and 90-0.1 wt.% of functional additive on the surface of the foamed polystyrene particle obtained by heating and foaming polystyrene bead or pellet. The functional skin layer has thickness in 0.003-10% of overall particle size and 1-95 wt.%. The process comprises the steps of foamed polystyrene particle; coating functional coating composition over surface of the foamed polystyrene particle; and releasing individual particles by adding a releasing agent to the particle.
© KIPO 2005
(KO) 본 발명은 발포 폴리스티렌 입자의 표면에 비닐아세테이트계 수지 베이스의 기능성 스킨층이 형성된 기능성 스킨층을 갖는 발포 폴리스티렌 입자와 그 제조방법, 및 이용에 관한 것이다.