IP Library Granted Patent US 11,898,011
Granted Patent B2
US 11,898,011 · App. 17/169,926 · Granted Feb 13, 2024

Polymers for use in electronic devices

Inventors: Viacheslav V Diev (Wilmington, DE); Nora Sabina Radu (Landenberg, PA)
Assignee: DUPONT ELECTRONICS, INC.
C08G73/1085C07D221/14C07D311/80C08G69/00
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,898,011
App. No.
17/169,926
Granted
Feb 13, 2024
Kind
B2
Abstract

Disclosed is a dianhydride having Formula I, and diamines having Formula IV and Formula VII In the formulas: Y is alkyl, silyl, ester, siloxane, oligosiloxane, polysiloxane, O, S, SO 2 , BR 3 , NR 3 , P(O)R 3 , unsubstituted or substituted carbocyclic aryl, or unsubstituted or substituted heteroaryl and deuterated analogs thereof; Ar 2 — Ar 4 are the same or different and are carbocyclic aryl, heteroaryl, or substituted derivatives thereof; Q 1 is a single bond, alkyl, silyl, ester, siloxane, oligosiloxane, polysiloxane, O, S, SO 2 , BR 3 , NR 3 , P(O)R 3 , unsubstituted or substituted carbocyclic aryl, or unsubstituted or substituted heteroaryl and deuterated analogs thereof; R 1 -R 2 are the same or different at each occurrence and are F, CN, deuterium, alkyl, fluoroalkyl, unsubstituted or substituted carbocyclic aryl, unsubstituted or substituted heteroaryl, alkoxy, fluoroalkoxy, unsubstituted or substituted aryloxy, silyl, siloxy and deuterated analogs thereof; R 3 is alkyl or unsubstituted or substituted carbocyclic aryl; a and b are the same or different and are an integer from 0-5; and c is 0 or 1.

Claims (44)

1. A dianhydride having Formula I

wherein:

Y is selected from the group consisting of alkyl, silyl, ester, siloxane, oligosiloxane, polysiloxane, SO 2 , BR 3 , NR 3 , P(O)R 3 , unsubstituted or substituted carbocyclic aryl, and unsubstituted or substituted heteroaryl and deuterated analogs thereof;

R 1 -R 2 are the same or different at each occurrence and are selected from the group consisting of F, CN, deuterium, alkyl, fluoroalkyl, unsubstituted or substituted carbocyclic aryl, unsubstituted or substituted heteroaryl, alkoxy, fluoroalkoxy, unsubstituted or substituted aryloxy, silyl, and siloxy and deuterated analogs thereof;

R 3 is selected from the group consisting of alkyl and unsubstituted or substituted carbocyclic aryl and deuterated analogs thereof; and

a and b are the same or different and are an integer from 0-5.

2. A diamine having Formula IV or Formula VII

wherein:

Ar 2 , Ar 3 , and Ar 4 are the same or different and are selected from the group consisting of carbocyclic aryl, heteroaryl, and substituted derivatives thereof and deuterated analogs thereof;

Q 1 is selected from the group consisting of a single bond, alkyl, silyl, ester, siloxane, oligosiloxane, polysiloxane, O, S, SO 2 , BR 3 , NR 3 , P(O)R 3 , unsubstituted or substituted carbocyclic aryl, and unsubstituted or substituted heteroaryl and deuterated analogs thereof;

R 1 and R 2 are the same or different at each occurrence and are selected from the group consisting of F, CN, deuterium, alkyl, fluoroalkyl, unsubstituted or substituted carbocyclic aryl, unsubstituted or substituted heteroaryl, alkoxy, fluoroalkoxy, unsubstituted or substituted aryloxy, silyl, siloxy and deuterated analogs thereof;

R 3 is selected from the group consisting of alkyl and unsubstituted or substituted carbocyclic aryl and deuterated analogs thereof; and

a and b are the same or different and are an integer from 0-5; and

c is 0 or 1.

3. A polyamic acid having a repeat unit structure of Formula II

where:

R a is the same or different at each occurrence and represents one or more tetracarboxylic acid component residues; and

R b is the same or different at each occurrence and represents one or more aromatic diamine residues;

wherein 0.001-100 mol % of R a is a residue from one or more dianhydrides having Formula I according to claim 1 .

4. A polyamic acid having a repeat unit structure of Formula V or Formula VIII

where:

R a1 is the same or different at each occurrence and represents one or more tetracarboxylic acid component residues; and

R a2 is the same or different at each occurrence and represents one or more tetracarboxylic acid component residues;

R b1 is the same or different at each occurrence and represents one or more aromatic diamine residues; and

R b2 is the same or different at each occurrence and represents one or more aromatic diamine residues;

wherein 0.001-100 mol % of R b1 is a diamine residue from one or more diamines having Formula IV according to claim 2 ; and

wherein 0.001-100 mol % of R b2 is a diamine residue from one or more diamines having Formula VII according to claim 2 .

5. A polyimide having a repeat unit structure of Formula III

where

R a is the same or different at each occurrence and represents one or more tetracarboxylic acid component residues; and

R b is the same or different at each occurrence and represents one or more aromatic diamine residues;

wherein 0.001-100 mol % of R a is a residue from one or more dianhydrides having Formula I according to claim 1 .

6. A polyimide having a repeat unit structure of Formula VI or Formula IX

where:

R a1 is the same or different at each occurrence and represents one or more tetracarboxylic acid component residues; and

R a2 is the same or different at each occurrence and represents one or more tetracarboxylic acid component residues;

R b1 is the same or different at each occurrence and represents one or more aromatic diamine residues; and

R b2 is the same or different at each occurrence and represents one or more aromatic diamine residues;

wherein 0.001-100 mol % of R b1 is a diamine residue from one or more diamines having Formula IV according to claim 2 ; and

wherein 0.001-100 mol % of R b2 is a diamine residue from one or more diamines having Formula VII according to claim 2 .

7. A flexible replacement for glass in an electronic device wherein the flexible replacement for glass comprises a polyimide film having a repeat unit of Formula III, according to claim 5 .

8. An electronic device comprising the flexible replacement for glass, according to claim 7 .

9. A flexible replacement for glass in an electronic device wherein the flexible replacement for glass comprises a polyimide film having a repeat unit of Formula IV or Formula IX, according to claim 6 .

10. An electronic device comprising the flexible replacement for glass, according to claim 9 .

Assignments (3)
SECURITY INTEREST Recorded Nov 3, 2025
From: QNITY ELECTRONICS, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 073515/0243 →
SECURITY INTEREST Recorded Nov 3, 2025
From: QNITY ELECTRONICS, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 073517/0298 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 23, 2022
From: DIEV, VIACHESLAV V.; RADU, NORA SABINA
To: DUPONT ELECTRONICS, INC.
Reel/Frame 059080/0017 →
Continuity (2)
Provisional Application 62978579 · Feb 19, 2020
Related Publication 20210261734A1 · Aug 26, 2021