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:
Dec. 02, 2025
Filed:
Nov. 24, 2020
Merck Patent Gmbh, Darmstadt, DE;
Durairaj Baskaran, Bridgewater, NJ (US);
Md S. Rahman, Flemington, NJ (US);
Sachin Bobade, Somerville, NJ (US);
Merck Patent GmbH, Darmstadt, DE;
Abstract
One aspect of this invention is a novel functional polymer having a polydispersity from 1 to about 1.12 comprising at least one reactive moiety, selected from a moiety comprising at least one N-coordinative functional group having at least one lone pair of electrons, a moiety comprising a dialkylsilyl group, or a mixture of both groups, wherein said reactive moiety is present in said functional styrenic polymer either on a repeat unit, on an end group or on both, and said N-coordinative functional group is either a monodentate N-coordinative functional group, a polydendate N-coordinative group or a mixture of thereof, and said monodentate N-coordinative functional group is an azide moiety (—N) or a cyano moiety (—CN). Another aspect of this invention is the use of these novel polymer to selectively deposit a DSA directing layer on a metallic substrate.