公开(公告)号：US20170050288A1

公开(公告)日：2017-02-23

申请号：US15234013

申请日：2016-08-11

申请人： NAN YA PLASTICS CORPORATION

发明人： Te-Chao LIAO ,  Chun-Che TSAO ,  Wen-Jui CHENG ,  Tzai-Shing CHEN

IPC分类号： B24B37/22

CPC分类号： B24B37/22 ,  B24B37/24

摘要： A polishing pad for surface planarization is made by impregnating a polyester-based fibrous fabric with thermosetting resins to form a porous impregnated material, and heating the porous impregnated material to effect changes in shape of the pores such that an integrally formed polishing pad with hard/soft layers of different hardnesses is obtained; the heated side of the polishing pad has high hardness and high cutting/grinding ability, whereas the unheated side maintains the original tiny pores and low hardness; and the polishing pad can produce a buffering effect when subjected to an external force and in turn apply an evenly distributed force to an article being polished.

摘要翻译： 通过用热固性树脂浸渍聚酯基纤维织物来形成用于表面平坦化的抛光垫，以形成多孔浸渍材料，并且加热多孔浸渍材料以实现孔的形状的改变，使得整体形成的具有硬/ 获得不同硬度的软层; 抛光垫的加热侧具有高硬度和高切削/磨削能力，而不加热侧保持原有的微细孔和低硬度; 并且抛光垫可以在受到外力时产生缓冲效果，并且对被抛光的物品施加均匀分布的力。

公开(公告)号：US20210253809A1

公开(公告)日：2021-08-19

申请号：US17034279

申请日：2020-09-28

申请人： NAN YA PLASTICS CORPORATION

发明人： Te-Chao LIAO ,  Wen-Cheng YANG ,  Wen-Jui CHENG ,  Chia-Yen HSIAO

IPC分类号： C08J5/18 ,  C08K13/08 ,  B29C55/00 ,  B29C55/16 ,  B29C48/00 ,  B29C48/08 ,  B32B27/08 ,  B32B27/36

摘要： A low shrinkage low oligomer polyester film and a method for manufacturing the same are provided. The method includes forming at least one polyester composition into an unstretched polyester thick film and stretching the unstretched polyester thick film in a machine direction (MD) and a transverse direction (TD) at a stretch ratio of two to six times. The polyester composition includes 94% to 99.974% by weight of a polyester resin, 0.01% to 1% by weight of a primary antioxidant, 0.01% to 1% by weight of a secondary antioxidant, 0.003% to 2% by weight of a nucleating agent, and 0.003% to 2% by weight of a flow aid. The polyester resin has an intrinsic viscosity between 0.60 dl/g and 0.80 dl/g.