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:
Nov. 08, 2022
Filed:
May. 11, 2018
Dottikon ES Holding Ag, Dottikon, CH;
Dottikon ES Holding AG, Dottikon, CH;
Abstract
The present invention relates to indane derivatives of the formula (I) and mixtures thereof, wherein X is selected from groups of the formula -A-(NAr), wherein A is a chemical bond or phenylene which is unsubstituted or substituted by 1, 2 or 3 substituents selected from C-C-alkyl and C-C-alkoxy; Ar is unsubstituted or substituted aryl, wherein two groups Ar bound to the same nitrogen atom may together with the nitrogen atom also form a fused ring system having 3 or more than 3 unsubstituted or substituted rings; and the variables Y, n, m, k and l are as defined in the claims and the description. The invention further relates to methods for preparing such compounds and their use in organic electronics, in particular as hole transport material or electron blocking material.