1
Ronald Sinclair Nohr, John Gavin MacDonald: Colorant stabilizers. Jones & Askew, March 23, 1999: US05885337 (43 worldwide citation)

The present invention comprises colorant stabilizers and a colorant composition which includes a colorant and a colorant stabilizer. The colorant stabilizer imparts light-stability to the colorant so that the colorant does not fade when exposed to electromagnetic radiation such as sunlight or artifi ...


2
Ronald Sinclair Nohr, John Gavin MacDonald: Colorant stabilizers. Kimberly-Clark Worldwide, Jones & Askew, January 5, 1999: US05855655 (21 worldwide citation)

The present invention is directed to an ink set of inks which have substantially identical light fastness properties. The ink set includes ink compositions containing a colorant and at least one colorant stabilizer. The colorant stabilizer imparts light-stability to the colorant so that the colorant ...


3
Ronald Sinclair Nohr, John Gavin MacDonald: Colorant stabilizers. Kimberly-Clark Worldwide, Jones & Askew, July 21, 1998: US05782963 (16 worldwide citation)

The present invention comprises colorant stabilizers and a colorant composition which includes a colorant and a colorant stabilizer. The colorant stabilizer imparts light-stability to the colorant so that the colorant does not fade when exposed to electromagnetic radiation such as sunlight or artifi ...


4
Ronald Sinclair Nohr, John Gavin MacDonald: Colorant stabilizers. Kimberly-Clark Worldwide, Kilpatrick Stockton, January 2, 2001: US06168655 (15 worldwide citation)

The present invention is directed to an ink set of inks which have substantially identical light fastness properties. The ink set includes ink compositions containing a colorant and at least one colorant stabilizer. The colorant stabilizer imparts light-stability to the colorant so that the colorant ...


5
Ronald Sinclair Nohr, John Gavin MacDonald: Colorant compositions and colorant stabilizers. Kimberly-Clark Worldwide, Jones & Askew, December 23, 1997: US05700850 (14 worldwide citation)

A light-stable colored composition which includes a colorant and a radiation transorber. The colorant, in the presence of the radiation transorber, is adapted, upon exposure of the transorber to specific, narrow bandwidth radiation, to be mutable. The radiation transorber also imparts light-stabilit ...


6
Ronald Sinclair Nohr, John G MacDonald: Colorants, colorant stabilizers, ink compositions, and improved methods of making the same. Kimberly-Clark Worldwide, Kilpatrick Stockton, February 25, 2003: US06524379 (11 worldwide citation)

The present invention relates to a family of new porphine compounds for use as colorants and/or colorant stabilizers. The new porphine compounds may be used alone or may be used in combination with one or more colorants to provide light stability to colorants. The present invention further relates t ...


7
Ronald Sinclair Nohr, John Gavin MacDonald: Colorant stabilizers. Kimberly-Clark Worldwide, Jones & Askew, April 6, 1999: US05891229 (10 worldwide citation)

The present invention is directed to compositions containing a colorant and at least one porphine. The present invention includes an ink set of one or more inks which have substantially identical light fastness properties. One or more of the inks of the ink set includes a colorant and at least one p ...


8
Ronald Sinclair Nohr, John Gavin MacDonald: Colorant stabilizers. Kimberly-Clark Worldwide, Jones & Askew, January 2, 2001: US06168654 (6 worldwide citation)

The present invention is directed to compositions containing a colorant and at least one porphine. The present invention includes an ink set of one or more inks which have substantially identical light fastness properties. One or more of the inks of the ink set includes a colorant and at least one p ...


9
Ronald Sinclair Nohr, John Gavin MacDonald: Colorants, colorant stabilizers, ink compositions, and improved methods of making the same. Kimberly-Clark Worldwide, Kilpatrick Stockton, April 9, 2002: US06368396 (3 worldwide citation)

The present invention relates to a family of new porphine compounds for use as colorants and/or colorant stabilizers. The new porphine compounds may be used alone as a magenta dye or may be used in combination with one or more colorants to provide light stability to colorants. The present invention ...


10
Ronald S Nohr, J Gavin MacDonald: Method of making sulfanatophenyl substituted porphines. Kimberly-Clark Worldwide, Kilpatrick Stockton, June 4, 2002: US06399769 (2 worldwide citation)

The present invention relates to improved methods of making Cu-meso-tetra-(4-sulfanatophenyl)-porphine (designated p-CuTPPS4). The improved processes allow the production of p-CuTPPS4 at lower cost and higher yields compared to conventional methods of making p-CuTPPS4. The present invention further ...