US2018251644A1PendingUtilityA1

Ga-naphthalocyanine chromophores with short chain alkoxy axial substituents

Assignee: BASF SEPriority: May 5, 2014Filed: May 4, 2018Published: Sep 6, 2018

Est. expiryMay 5, 2034(~7.7 yrs left)· nominal 20-yr term from priority

Inventors:Hans Reichert Yves Bron Helmut Reichelt Marina Schiller

C07D 487/22C09B 47/045C09D 11/037C09B 47/04C09D 11/322C09B 47/067

PatentIndex Score

Cited by

References

Claims

Abstract

The present invention relates to specific Ga-naphthalocyanine chromophores with short chain alkoxy axial substituents, their use as almost colourless IR absorbers, for optical filter applications; especially for plasma display panels, or for laser welding of plastics. The compounds may be used in compositions for inks, paints and plastics, especially in a wide variety of printing systems and are particularly well-suited for security applications.

Claims

exact text as granted — not AI-modified

1 . A compound of formula (I) 
       
         
           
           
               
               
           
         
         wherein R is C 1 -C 6 alkyl. 
       
     
     
         2 . A compound according to  claim 1  wherein R is C 1 -C 5 alkyl. 
     
     
         3 . A compound according to  claim 1 , wherein R is ethyl, propyl or butyl.

Join the waitlist — get patent alerts

Track US2018251644A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.