Process for producing polyester pellets

Details Process for producing polyester pellets Process for producing polyester pellets

C - Chemistry, Metallurgy

08

J

C08J 3/12 (2006.01) C08G 63/12 (2006.01)

Patent

CA 2728199

A process for producing polyester pellets is claimed. This process consists in a) grinding the melt of the polyester, after the production thereof, to a powder with particle sizes of d90,3 = 10 to 150 mm, and b) processing this powder to pellets with particle sizes of 150 to 1600 mm. The polyester pellets produced by this process are notable for improved solubility at low temperatures.

L'invention concerne un procédé de production de granulés de polyester. Le procédé est caractérisé en ce que a) la masse fondue du polyester est moulue, après sa production, en une poudre de granulométrie de d90,3 = 10 à 150 µm, et b) cette poudre est transformée en granulés de granulométrie 150 à 1600 µm. Les granulés de polyester fabriqués suivant ce procédé se caractérisent par une solubilité améliorée aux basses températures.

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