公开(公告)号：US06420440B1

公开(公告)日：2002-07-16

申请号：US09556299

申请日：2000-04-24

申请人： Bong-Woo Lee ,  Soo-Won Lee ,  Sho-Hak Nam ,  Jin-Ho Ju ,  Soo-Im Jeong ,  Hong-Sick Park ,  Sung-Chul Kang

发明人： Bong-Woo Lee ,  Soo-Won Lee ,  Sho-Hak Nam ,  Jin-Ho Ju ,  Soo-Im Jeong ,  Hong-Sick Park ,  Sung-Chul Kang

IPC分类号： C08J1104

CPC分类号： G02F1/133711

摘要： The present invention relates to a method for recycling an alignment layer material. The recycled alignment layer material shows the same characteristics as an original alignment layer material. The waste solution of the alignment layer material produced during the liquid crystal display manufacturing processes is recycled by solidifying polyamic acids and soluble polyimides by putting a waste solution of the alignment layer material into an organic solution or ultra purified water in which the alignment layer material constituents of polyamic acids and soluble polyimides are insoluble, separating polyamic acids and soluble polyimides from the organic solvent or ultra purified water, and dissolving the separated solid polyamic acids and soluble polyimides into a solvent. Recycling the alignment layer material in this method can significantly reduce the manufacturing costs.

摘要翻译： 本发明涉及一种再循环对准层材料的方法。 再生取向层材料与原来的配向层材料具有相同的特性。 在液晶显示器制造过程中产生的取向层材料的废溶液通过将取向层材料的废溶液放入有机溶液或超纯水中来固化聚酰胺酸和可溶性聚酰亚胺来再循环，其中取向层材料成分 的聚酰胺酸和可溶性聚酰亚胺是不溶的，从有机溶剂或超纯水中分离聚酰胺酸和可溶性聚酰亚胺，并将分离的固体聚酰胺酸和可溶性聚酰亚胺溶解在溶剂中。 以这种方法回收对准层材料可以显着降低制造成本。