Acrylonitrile-butadiene-styrene copolymer capable of being marked colorfully by laser

The invention discloses an acrylonitrile-butadiene-styrene copolymer capable of being marked colorfully by laser. The acrylonitrile-butadiene-styrene copolymer capable of being marked colorfully by laser comprises the following components: 54.9-98.7wt% of an acrylonitrile-butadiene-styrene copolymer, 2-5wt% of polyurethane acrylate with an NCO group, 1-8wt% of fluorosilicone modified polyacrylatecontaining an OH group, 0-40wt% of filler, 0.1-1wt% of black pigment, 0.1-3wt% of color pigment, 0.6wt% of an antioxidant and 0.5wt% of a lubricating agent. Under the high covering power of the blackpigment, the initial color of a composition is black; and under the laser effect on the composition, the black pigment disappears or changes color, the color pigment remains, therefore, a permanent colorful mark is formed on a workpiece, moreover, the waterproofness is excellent, the durability of a mark effect is excellent, and the clarity is excellent. 本发明公开种可激光彩色标记的丙烯腈-丁二烯-苯乙烯共聚物，包括组分：54.9-98.7wt％的丙烯腈-丁二烯-苯乙烯共聚物，2-5wt％的