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Class Information
Number: 252/301.22
Name: Compositions > Organic luminescent material containing compositions > Optical brightening compositions > Heterocyclic compounds having an intercyclic acyclic methine linkage
Description: Compositions which contain a heterocyclic compound having two cyclic nuclei joined together through a straight chain linkage containing at least one methine group.










Sub-classes under this class:

Class Number Class Name Patents
252/301.24 Thiazoles or oxazoles 64
252/301.23 Triazines 108


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8445079 Optical film, image display device, diethynylfluorene, and polymer thereof May. 21, 2013
8309186 Optical film, image display device, diethynylfluorene, and polymer thereof Nov. 13, 2012
8197722 Two-photon or higher-order absorbing optical materials and methods of use Jun. 12, 2012
7732215 Cyanide sensing compounds and uses thereof Jun. 8, 2010
7531107 Aqueous solutions of fluorescent whitening agents May. 12, 2009
7497971 Mixtures of fluorescent whitening agents Mar. 3, 2009
7488468 Near infrared fluorescent contrast agent and fluorescence imaging Feb. 10, 2009
7258815 Use of brighteners for the preparation of coating slips Aug. 21, 2007
7063806 Fluorescent diketopyrrolopyrroles Jun. 20, 2006
7041235 Fluorescent diketopyrrolopyrrole analogues May. 9, 2006
6890454 Optical brighteners compositions their production and their use May. 10, 2005
6740257 Photo-induced electron transfer fluorescent sensor molecules May. 25, 2004
6737393 Liquid bubble solution for producing luminous bubbles May. 18, 2004
6656612 Heterocyclic compounds, materials for light emitting devices and light emitting devices using the same Dec. 2, 2003
6649089 Red organic electroluminescent materials Nov. 18, 2003
6608228 Two-photon or higher-order absorbing optical materials for generation of reactive species Aug. 19, 2003
6533961 Durable fluorescent organic pigments and methods of making Mar. 18, 2003
6387672 Photo-induced electron transfer fluorescent sensor molecules May. 14, 2002
6274065 Process for the preparation of fluorescent compositions, fluorescent compositions and their use Aug. 14, 2001
6218137 Compounds, compositions and methods for generating chemiluminescene with phosphatase enzymes Apr. 17, 2001
6120704 Mixtures of optical brighteners Sep. 19, 2000
6117189 Protective method Sep. 12, 2000
5932363 Electroluminescent devices Aug. 3, 1999
5908581 Red organic electroluminescent materials Jun. 1, 1999
5695687 Anhydrous fluorescent whitening agent formulation Dec. 9, 1997
5650455 Method for dispersing optical brighteners in waterborne coating compositions Jul. 22, 1997
5503770 Fluorescent compound suitable for use in the detection of saccharides Apr. 2, 1996
5486406 Green-emitting organometallic complexes for use in light emitting devices Jan. 23, 1996
5269815 Process for the fluorescent whitening of hydrophobic textile material with disperse fluorescent whitening agents from super-critical carbon dioxide Dec. 14, 1993
5256336 Stable aqueous dispersions of fluorescent brightening agents of the coumarine type and method of preparing same Oct. 26, 1993
5230820 Storage-stable bleaching detergents containing bis-benzofuranyl fluoescent whitening agents Jul. 27, 1993
5152922 1,4-distyrylbenzene compounds and mixtures thereof with other 1,4-distyrybenzene compounds Oct. 6, 1992
5122304 Stable aqueous dispersions of fluorescent brightening agents of the coumarine type and method of preparing same Jun. 16, 1992
5072016 Mixtures of fluorescent whitening agents Dec. 10, 1991
5053055 Whitener dispersion Oct. 1, 1991
5051111 Whitener dispersion Sep. 24, 1991
5001253 Fluorescent brighteners consisting of bis-styrylbenzene compounds, a process for their preparation and their use Mar. 19, 1991
4940555 Storage-stable anionic liquid detergent compositions containing amphoteric distyryl derivative fluorescent whiteners Jul. 10, 1990
4891153 Mixtures of fluorescent whitening agents Jan. 2, 1990
4889655 Mixtures of fluorescent whitening agents Dec. 26, 1989
4867906 Mixtures of fluorescent whitening agents Sep. 19, 1989
4830763 Process for increasing the degree of whiteness of polyester-containing textile material May. 16, 1989
4778623 Fluorescent brighteners consisting of bis-styrylbenzene compounds, a process for their preparation and their use Oct. 18, 1988
4778622 Mixtures of fluorescent whitening agents Oct. 18, 1988
4751020 UV-fluorescent cyanoacrylate adhesive Jun. 14, 1988
4741860 Adhesion promoters containing optical brightener May. 3, 1988
4666627 4-Heterocyclylvinyl-4-'styryl-biphenyls May. 19, 1987
4605511 Stable stilbene fluorescent brightener solution Aug. 12, 1986
4544496 Light-collecting system using coumarin derivatives as energy converters Oct. 1, 1985
4466900 Process for the preparation of fluorescent brightener formulations which are stable on storage Aug. 21, 1984

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