The higher the temperature and the longer the resident time was, the higher the oligomer content was during polyester melt trans - fer course at a fixed screw rotation speed.
在一定的螺杆转速下，温度越高，停留时间越长，聚酯熔体输送过程中齐聚物含量越高。
A high solids acrylic polyurethane coatings by use of a polyester oligomer as plasticizer has been prepared, which can lead to a higher application solids and excellent film performance.
采用低分子量聚酯齐聚物作为丙烯酸树脂的增塑剂，配制高固体分丙烯酸聚氨酯涂料，不仅提高涂料的施工固体分，涂膜的性能也优异。
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