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Comment

Comments on Lynch. Pyrrolyl Squaraines—Fifty Golden Years. Metals 2015, 5, 1349–1370

Exilica Limited, The Technocentre, Puma Way, Coventry CV1 2TT, UK
Metals 2015, 5(4), 2370-2371; https://doi.org/10.3390/met5042370
Submission received: 7 December 2015 / Accepted: 9 December 2015 / Published: 14 December 2015
(This article belongs to the Special Issue Synthetic Metals)
In addition to the papers (1965–2005) referenced in the main article [1] pyrrolyl squaraines were listed in a 1974 US patent from IBM as one of the examples of a squaraine dye that can be used in electrophotographic plates [2], a 1979 US patent from Eastman Kodak in relation to electrophoretic migration imaging processes [3], a 1982 US patent for use in electrophotographic reproduction [4], two concurrent 1988 US patents from Eastman Kodak for use as negative working photoresists [5] and imaging dyes [6], a 2004 US patent from Asahi Denka for their use as optical filters and optical recording materials [7], and a 2005 US patent from BASF for use in optical data storage applications [8].
References from 2006 onwards listing pyrrolyl squaraines have included a 2007 US patent from KyoWa Hakko Chemical covering their use as optical filters for electronic display devices [9], a computational study in 2007 on the diradical nature of both squaraine and croconaine dyes [10], a 2008 US patent from Adeka Corporation for use as optical filters and optical recording materials [11], a 2008 US patent from Fuji Xerox for use as a colorant [12], a 2009 US patent from Kyowa Hakko Chemical for use as optical filters [13], a 2009 review (in Spanish) of oxocarbons and pseudooxocarbons [14], a 2010 US patent from Fuji Xerox for use as a colorant [15], and a 2013 US patent from Adeka Corporation for use in a color conversion filter [16].

Conflicts of Interest

The author declares no conflicts of interest.

References

  1. Lynch, D.E. Pyrrolyl Squaraines—Fifty Golden Years. Metals 2015, 5, 1349–1370. [Google Scholar]
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  3. Haley, N.F.; Krutak, J.J.; Ott, R.J. Electrophotosensitive materials for migration imaging processes. U.S. Patent 4,175,956, 27 November 1979. [Google Scholar]
  4. Chang, M.S.H.; Edelman, P.G. Squarylium dye and diane blue dye charge generating layer mixture for electrophotographic light sensitive elements and processes. U.S. Patent 4,353,971, 12 October 1982. [Google Scholar]
  5. Farid, S.Y.; Haley, N.F.; Moody, R.E.; Specht, D.P. Negative working photoresists responsive to longer wavelengths and novel coated articles. U.S. Patent 4,743,530, 10 May 1988. [Google Scholar]
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  13. Yamano, J.; Ukai, K.; Kinugasa, M. Optical filter. U.S. Patent 2009/0074373, 19 March 2009. [Google Scholar]
  14. De Oliveira, V.E.; Diniz, R.; de Oliveira, L.F.C. Oxocarbonos, Pseudo-oxocarbonos e esuarainas. Quim. Nova 2009, 32, 1917–1925. [Google Scholar] [CrossRef]
  15. Ito, Y.; Hasegawa, S.; Tian, M.; Watanabe, M.; Hirokawa, K.; Anazawa, K.; Miyahara, T.; Matsubara, T.; Furuki, M. Colorant. U.S. Patent 7,667,047, 23 February 2010. [Google Scholar]
  16. Maeda, Y.; Shigeno, K.; Ariyoshi, T.; Okada, M.; Kanehara, Y. Color conversion filter. U.S. Patent 2013/0147345, 13 June 2013. [Google Scholar]

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MDPI and ACS Style

Lynch, D.E. Comments on Lynch. Pyrrolyl Squaraines—Fifty Golden Years. Metals 2015, 5, 1349–1370. Metals 2015, 5, 2370-2371. https://doi.org/10.3390/met5042370

AMA Style

Lynch DE. Comments on Lynch. Pyrrolyl Squaraines—Fifty Golden Years. Metals 2015, 5, 1349–1370. Metals. 2015; 5(4):2370-2371. https://doi.org/10.3390/met5042370

Chicago/Turabian Style

Lynch, Daniel E. 2015. "Comments on Lynch. Pyrrolyl Squaraines—Fifty Golden Years. Metals 2015, 5, 1349–1370" Metals 5, no. 4: 2370-2371. https://doi.org/10.3390/met5042370

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