Company Filing History:
Years Active: 1997-1999
Title: Innovations by Jolanta Sokolowska-Gajda
Introduction
Jolanta Sokolowska-Gajda is a prominent inventor based in Raleigh, NC (US). She has made significant contributions to the field of organic pigments and dyes, holding two patents that showcase her innovative work. Her research focuses on developing environmentally friendly alternatives to conventional dyes, which have important applications in various industries.
Latest Patents
One of her latest patents involves the creation of organic pigments from twisted benzidines. These nonmutagenic, highly twisted derivatives of benzidine serve as intermediates for preparing various organic pigments. The unique structure of these benzidine derivatives allows for significant rotation about the biphenyl linkage, resulting in pigments that exhibit hypsochromic spectral shifts compared to those made from less twisted benzidine compounds. The pigments produced, including greenish-yellow, yellow, orange, red, and brown shades, have been tested and found to be nonmutagenic in standard Ames tests.
Another notable patent by Sokolowska-Gajda is related to iron-complexed formazan dyes for polyamide and protein substrates. This family of 1:2 Fe-complexed formazan dyes produces a range of colors, including reddish-violet, violet, blue, and black shades on both natural and synthetic substrates. The methods for synthesizing these dyes and dyeing substrates are also described in her patent, highlighting their potential as environmentally friendly alternatives to traditional Cr- and Co-based azo and formazan dyes.
Career Highlights
Jolanta Sokolowska-Gajda is affiliated with North Carolina State University, where she continues her research and development in the field of organic chemistry. Her work has garnered attention for its innovative approach to creating sustainable and non-toxic dye solutions.
Collaborations
She has collaborated with notable colleagues, including Harold S Freeman and David Hinks, contributing to the advancement of her research and the development of new technologies in her field.
Conclusion
Jolanta Sokolowska-Gajda's contributions to the field of organic pigments and dyes reflect her commitment to innovation and sustainability. Her patents not only advance scientific knowledge but also provide environmentally friendly alternatives for various applications.