LASER-SINTERING POWDER CONTAINING TITANIUM DIOXIDE HAVING IMPROVED RESISTANCE AGAINST HEAT STRESS AND AGING CHARACTERISTICS, PREPARATION THEREOF AND MOLDED PRODUCT OBTAINED FROM THE SAME POWDER

摘要

PURPOSE: Provided is laser-sintering powder, which has improved resistance against heat stress during laser sintering and aging characteristics, and resistance against UV suitable to be used in a molded product to be exposed to UV light. CONSTITUTION: The laser-sintering powder comprises at least one polyamide and titanium dioxide particles. The polyamide has at least 8 carbon atoms per carboxamide group. The laser-sintering powder comprises nylon-6,12, nylon-11 or nylon-12. The laser-sintering powder comprises titanium dioxide particles in the amount of 0.01-30 wt% based on the total weight of the polyamide present in the sintering powder.