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. 09, 2021
Filed:
Jul. 20, 2017
Fondazione Istituto Italiano Di Tecnologia, Genoa, IT;
Universita' Degli Studi Di Genova, Genoa, IT;
FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA, Genoa, IT;
UNIVERSITA' DEGLI STUDI DI GENOVA, Genoa, IT;
Abstract
The present invention refers to a process for the preparation of a graphene dispersion comprising the following steps: i) providing cellulose acetate flakes or powders; ii) swelling the cellulose acetate flakes or powders in an alcohol having from 1 to 3 carbon atoms; iii) adding acetic anhydride in a concentration range from 30 to 50 wt % referred to the total weight of the mixture; iv) adding graphene nanoplatelets to yield a graphene dispersion. The graphene dispersion is used as ink for composite materials that are employed in the field of foldable electronics. The invention relates also to a composite material comprising uniformly dispersed graphene nanoplatelets and its use for manufacturing electronic devices.