Caramel color polymers

Chapter 11. Analytical Pyrolysis of Caramel Colors and of Maillard Browning Polymers... 

Figure 9.3 shows the sulfonate concentration decreased when polymer was first produced. As the sulfonate concentration decreased in the zone of SPl, there was a marked change in effluent appearance. The fluid changed from turbid, caramel-colored to transparent amber. In this case, after the sulfonate concentration reached a minimum, it began increasing. As it increased, the second turbid, caramel-colored sulfonate phase was produced. The fractional volume of this phase increased as sulfonate concentration increased. This result indicates that SPl loss was caused by phase trapping. 

Cornel in low concentration gives a stable and intense yellow color. Therefore, it was proposed as a color compatible with Yellow No. 5 (tartra-zine) for nontransparent drinks, The wide range of shades of color of caramel has attract the attention of other industries. Thus, coatings and other articles having a cork-like appearance are manufactured from thermoplastic resins colored with caiamel. Coloring of polyethylene terephtha-late with caramel was also patented. Caramel may be formed in situ from carbohydrates in the presence of antimonous oxide as the catalyst the dark-brown polymer resulting is said to be nontoxic. ... 

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