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:
Oct. 29, 2019
Filed:
May. 08, 2017
Atotech Deutschland Gmbh, Berlin, DE;
Nayan H. Joshi, Berlin, DE;
Atotech Deutschland GmbH, Berlin, DE;
Abstract
To achieve efficient stripping of organic coatings from sensitive substrate without affecting the substrate surface, a novel non-aqueous stripping composition and method are provided. The stripping composition comprises: A. at least one high-boiling solvent selected from the group, consisting of alcohols having general chemical formula R—OH, wherein R is a C-Chydrocarbon group, wherein the high-boiling solvent has a boiling point of at least 100° C.; B—at least one high-boiling co-solvent selected from the group, consisting of high-boiling glycols, glycol ethers and amine compounds, wherein the high-boiling co-solvent has a boiling point of at least 100° C.; and C—at least one pH-active agent either selected from the group, consisting of acid compounds or selected from the group, consisting of hydroxide compounds.