Patent · US Active

Photoactivable nitrogen bases

US9921477B2 · kind B2 · utility

0Cited by

5References

12Claims

0Family size

Assignee

BASE SE · DE

Inventors

Kurt Dietliker · Allschwil, CH
Katharina Misteli · Basel, CH
Katia Studer · Rixheim, FR
Tunja Jung · Rheinfelden (Baden), DE
Lothar Alexander Engelbrecht · Heerenveen, NL

Key dates

Filing date	Mar 25, 2008
Grant date	Mar 20, 2018
Priority date	—
Expiry date	Aug 11, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG03F7/0045
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Compounds of the Formula (I), (II) and (III) wherein Aris is for example phenylene, biphenylene or naphthylene, all of which are unsubstituted or substituted by C1-C4-alkyl, C2-C4-alkenyl, CN, OR11, SR11, CH2OR11, COOR12, CONR12R13 or halogen; R1, R2, R7 and R8 independently of one another other are hydrogen or C1-C6-alkyl; R3 and R5 together and R4 and R6 together form a C2-C6-alkylene bridge which is unsubstituted or substituted by one or more C1-C4-alkyl; R11 is hydrogen or C1-C6-alkyl; R12 and R13 independently of one another for example are hydrogen, phenyl, C1-C18-alkyl, C1-C18-alkyl which is interrupted by one or more O; n is 1-10; X is O, S or NR10; A and A1 are suitable linking groups; are suitable as photolatent bases.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.