反射材用聚酯树脂组成物及含有其的反射材;POLYESTER RESIN COMPOSITION FOR REFLECTIVE MATERIAL AND REFLECTIVE MATERIAL CONTAINING THE SAME

摘要

本发明的课题在于提供一种可获得反射率高的反射材的反射材用聚酯树脂组成物。为了解决该课题，本发明的反射材用聚酯树脂组成物含有包含来源于脂环式二羧酸的脂环式二羧酸成分单元(a1)及来源于脂肪族二醇的脂肪族二醇成分单元(b1)的聚酯树脂(A)、以及白色颜料(B)，并且相对于聚酯树脂(A)的所有二羧酸成分单元(a)的量，所述脂环式二羧酸成分单元(a1)的量为50莫耳%以上，且相对于聚酯树脂(A)的所有二醇成分单元(b)的量，所述脂肪族二醇成分单元(b1)的量为50莫耳%以上，所述脂环式二羧酸成分单元(a1)包含顺式-反式异构物的顺式体及反式体，由NMR所测定的所述顺式体的比例为20莫耳%以上。; and a white pigment (B). The amount of the alicyclic dicarboxylic acid component unit (a1) is 50 mol% or more relative to the amount of all dicarboxylic acid component units (a) of the polyester resin (A), and the amount of the aliphatic diol component unit (b1) is 50 mol% or more relative to the amount of all diol component units (b) of the polyester resin (A). The alicyclic dicarboxylic acid component unit (a1) contains a cis-isomer and a trans-isomer of a cis-trans isomer, and a ratio of the cis-isomer measured by NMR is 20 mol% or more.