POLYESTER PARTICLES OF SPHERICAL FORM, EVENTUALLY RETICULABLE AT LOW TEMPERATURE, PROCEDURE FOR THE MANUFACTURE AND USE OF THE SAME FOR POWDER VARNISHES.

摘要

THE INVENTION REFERS TO SPHERICAL TRANSPARENT POLYESTER PARTICLES, WITH A MEDIUM SIZE OF PARTICLES OF 50 MI M, WITH A MONOMODAL GRANULOMETRIC DISTRIBUTION PER ARTICLE (D90-D10 / D50) 2.5. AT TEMPERATURES 200 C, THESE PARTICLES CAN BE FOUNDED TO FORM A CONTINUOUS COATING. THE INVENTION REFERS EQUALLY TO THE PRODUCTION PROCESS OF THE SAME AND ITS USE AS POWDERED LACQUES. IN THE PREFERRED EMBODIMENT, THE PARTICLES CONTAIN UNITS OF FORMULAS (1) - CO - X - CO Y (2) - O - D - O -, IN WHICH X REPRESENTS A SUBSTITUTED OR NOT REPLACED AROMATIC RESIDUE C 6 AC 14, OR A RENTED, POLYMETHYLENE, CYCLOALCANE OR DIMETHYLENE - CYCLALCANEO GROUP, OR A CANDYLLAN GROUP IN A STRAIGHT OR RAMIFIED CHAIN, EVENTUALLY INSATURED, AND D REPRESENTS A RENTED, CIMLETHYLED OR CINETALED, RECYCLED ORGANIZED GRADUATE GROUP.