The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2025
Filed:
Apr. 21, 2020
Dupont Electronics, Inc., Wilmington, DE (US);
Viacheslav V Diev, Wilmington, DE (US);
Nora Sabina Radu, Landenberg, PA (US);
Michael Henry Howard, Jr., Montchanin, DE (US);
Rakesh Nambiar, West Chester, PA (US);
DUPONT ELECTRONICS, INC., Wilmington, DE (US);
Abstract
Disclosed is a polyamic acid having Formula I In Formula I: Rrepresents one or more different tetracarboxylic acid component residues; Rrepresents one or more different aromatic diamine residues or aromatic diisocyanate residues; and 5-100 mol % of Rhas Formula II In Formula II: Rthrough Rare the same or different and are haloalkyl or haloalkoxy; Ris the same or different at each occurrence and is deuterium, halogen, cyano, hydroxyl, alkyl, deuterated alkyl, heteroalkyl, alkoxy, heteroalkoxy, haloalkyl, haloalkoxy, silyl, siloxy, hydrocarbon aryl, substituted hydrocarbon aryl, heteroaryl, substituted heteroaryl, vinyl, or allyl; n is an integer from 0-10; x1 and x4 are the same or different and are an integer from 0-3; x2 and x3 are the same or different and are an integer from 0-2; and * indicates a point of attachment.