LIQUID ELECTROPHOTOGRAPHIC INK COMPOSITIONS
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United States of America Patent
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Issued Date -
Feb 15, 2024
app pub date -
Jun 26, 2020
filing date -
Nov 15, 2019
priority date (Note) -
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Abstract
Described herein is a method of producing a perovskite material on a substrate by LEP printing comprising: printing a composition comprising a salt AX and a resin in a carrier liquid; printing a composition comprising a salt selected from BX2 and in BX4 and a resin in a carrier liquid; and heat treating the printed compositions; or printing a composition comprising a material with a perovskite structure and a resin in a carrier liquid; wherein the resin comprises a copolymer of an alkylene monomer and a monomer having acidic side groups; and/or a copolymer of an alkylene monomer and an ethylenically unsaturated monomer comprising an epoxide; and/or a copolymer of an alkylene monomer, an ethylenically unsaturated monomer comprising an epoxide, and a monomer selected from a monomer having acidic side groups, a monomer having ester side groups and a mixture thereof. Also described is an ink set and a printed substrate.
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