One Of The Rings, Or A Polycyclo Ring System Containing One Of The Rings, Is Bonded Directly To -n=c=o Or To -c(=o)oh (wherein H May Be Replaced By A Group Ia Or Iia Light Metal, Or By Substituted Or Unsubstituted Ammonium) Patents (Class 552/106)
Chalcogen bonded directly to the ring or ring system (e.g., salicyclic type, hydroxynaphthoic type, etc.) (Class 552/107)
  • Poly[bis(ethynyl)heteroacene]s and electronic devices generated therefrom
    Patent number: 7994497
    Abstract: An electronic device comprising a polymer of Formula or Structure (I) wherein R1 is hydrogen, halogen, a suitable hydrocarbon, or a heteroatom containing group; R2 is hydrogen, a suitable hydrocarbon, a heteroatom containing group, or a halogen; R3 and R4 are independently a suitable hydrocarbon, hydrogen, a heteroatom containing group, or a halogen; Ar is an aromatic component; x, y, a, b, and c represent the number of groups or rings, respectively; Z represents sulfur, oxygen, selenium, or NR wherein R is hydrogen, alkyl, or aryl; and n represents the number of repeating units.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: August 9, 2011
    Assignee: Xerox Corporation
    Inventors: Yuning Li, Ping Liu, Yiliang Wu, Beng S. Ong
  • Organic compounds
    Patent number: 5922890
    Abstract: New trityl linkers for use in solid phase synthesis comprise compounds of formula II ##STR1## wherein R.sub.4 is alkyl (e.g. C.sub.1-4 alkyl), halogen, NO.sub.2, or hydrogen;Z is a coupling group chosen from acylamido, acyloxy, amino, halogen, thiol or hydroxyl,where acyl is the residue of a carboxylic acid or a residue of formula R.sub.5 CO where R.sub.5 is an organic group;Y is H, a reactive functional group or an attachment to a solid phase;W is O when Y is H or a reactive functional group, or W is --NH--, or --NR.sub.6 --(urethane) when Y is an attachment to a solid phase,where R.sub.6 is an organic group and,each R which, may be the same or different, is C(O)NR.sub.7 R.sub.8, CF.sub.3, F or Cl wherein each R.sub.7 and R.sub.8, which may be the same or different, is H or C.sub.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: July 13, 1999
    Assignee: Novartis AG
    Inventor: Konrad Bleicher
  • Protein staining compositions and methods
    Patent number: 5273906
    Abstract: The present invention provides novel dyes for staining proteins, particularly those in electrophoretic gels. The dyes of the invention are derivatives of Coomassie.RTM. dyes. The invention also provides quantitative and qualitative methods for detecting proteins by staining the proteins with a dye of the invention.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: December 28, 1993
    Assignee: Promega Corporation
    Inventors: John W. Shultz, David L. Leland
  • Protein staining compositions and methods
    Patent number: 5132439
    Abstract: The present invention provides novel dyes for staining protein, particularly those in elecrophoretic gels. The dyes of the invention are derivatives of Coomassie.RTM. dyes. The invention also provides quantitative and qualitative methods for detecting proteins which comprise staining the proteins with a dye of the invention.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: July 21, 1992
    Assignee: Promega Corporation
    Inventors: John W. Schultz, David L. Leland