Nova Patents
ATE462201T1

Heteroatomic regioregular poly(3-substitutedthiophenes) in electroluminescent devices

Abstract

Regioregular polythiophenes having heteroatoms in the substituents can be used in hole injection layer and hole transport layers for electroluminescent devices. Copolymers and organic oxidants can be used. Homopolymers can be used. Metallic impurities can be removed. The heteroatom can be oxygen and can be substituted at the 3-position. Advantages include versatility, synthetic control, and good thermal stability. Different device designs can be used.

Term

Term ended

Projected expiry passed 26 September 2025, 1 year ago.

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16 members in 9 offices

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DocumentOfficeKindDate
61264004United States of AmericaP
2005034042United States of AmericaW

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DocumentOfficeKind
WO2006036755A1World Intellectual Property Organization (WIPO)A1
US2006078761A1United States of AmericaA1
EP1805826A1European Patent Office (EPO)A1
KR20070092951ARepublic of KoreaA
CN101084588AChinaA
JP2008515194AJapanA
SG155966A1SingaporeA1
EP1805826B1European Patent Office (EPO)B1
AT462201TAustriaT
ATE462201T1This recordAustriaT1
DE602005020175D1GermanyD1
JP5041535B2JapanB2
KR20130025946ARepublic of KoreaA
KR101269256B1Republic of KoreaB1
KR101473220B1Republic of KoreaB1
US8920939B2United States of AmericaB2