公开(公告)号：US12091507B2

公开(公告)日：2024-09-17

申请号：US17042493

申请日：2019-04-01

申请人： DUPONT ELECTRONICS, INC.

发明人： Michael Henry Howard, Jr. ,  Nora Sabina Radu ,  Greg A. Hostetler ,  Chai Kit Ngai ,  Brian C. Auman ,  John Donald Summers

IPC分类号： C08G73/10 ,  C08J5/18 ,  C09D179/08 ,  G02F1/1333

CPC分类号： C08G73/1042 ,  C08G73/1085 ,  C08J5/18 ,  C09D179/08 ,  G02F1/133305 ,  C08J2379/08 ,  C09K2323/06

摘要： Disclosed is a polyimide having a repeat unit structure of Formula III




In Formula III: Ra represents one or more different tetracarboxylic acid component residues; and Rb represents one or more different aromatic diamine residues or aromatic diisocyanate residues. 5-100 mol % of Ra has Formula II





In Formula II: R1 is H, halogen, cyano, hydroxyl, alkyl, heteroalkyl, alkoxy, heteroalkoxy, fluoroalkyl, silyl, hydrocarbon aryl, substituted hydrocarbon aryl, heteroaryl, substituted heteroaryl, ally, or vinyl; R2 is halogen, cyano, hydroxyl, alkyl, heteroalkyl, alkoxy, heteroalkoxy, fluoroalkyl, silyl, hydrocarbon aryl, substituted hydrocarbon aryl, heteroaryl, substituted heteroaryl, ally, or vinyl; R3 and R4 are the same or different and are alkyl, fluoroalkyl, or silyl; x and y are the same or different and are an integer from 0-2; and * indicates a point of attachment.

公开(公告)号：US12049542B2

公开(公告)日：2024-07-30

申请号：US17265905

申请日：2019-08-07

申请人： DUPONT ELECTRONICS, INC.

发明人： Brian C. Auman ,  Michael Henry Howard, Jr.

IPC分类号： C08G73/10 ,  G02F1/1333 ,  H05K1/03 ,  G02B5/22 ,  G06F3/041

CPC分类号： C08G73/1078 ,  C08G73/1042 ,  C08G73/1067 ,  G02F1/133305 ,  H05K1/0346 ,  C09K2323/06 ,  G02B5/223 ,  G06F3/041

摘要： Disclosed is a polyimide having a repeat unit structure of Formula IV




In Formula IV: Ra is the same or different at each occurrence and represents one or more tetracarboxylic acid component residues; and Rb is the same or different at each occurrence and represents one or more aromatic diamine residues. 30-100 mol % of Rb has Formula II





In Formula II: R1 and R2 are the same or different at each occurrence and are halogen, alkyl, fluoroalkyl, silyl, alkoxy, fluoroalkoxy, or siloxy; a and b are the same or different and are an integer from 0-4; c and d are the same or different and are 1 or 2; and * indicates a point of attachment.