New Uses For Highly Miscible Liquid Polymeric Colorants in the Manufacture of Colored Urethane Systems

H. Kuhn , U.S. Patent, 3,157,633 ( 1964 ).

D. J. Dawson , Aldrichemica Acta, 14(2), 23 (1981).

G. N. Patel , Amer. Ink Maker, 59 24 (1981).

H. Kuhn , Am. Dyest, Rept. , 55, 864 ( 1966).

J. W. Miley and P. D. Moore , Proc. Soc. Plastic Ind. 26th Annual Technical Conference, 83 (1981).

Examples tested include Fyrol® 2XC-20 a product of Stauffer Chemical, DE60F® a product of Great Lakes Chemical, and Thermolin 101® a product of Olin Chemical Company.

Hue angle is expressed in CIELAB units using the 1931 observer and illuminant C. For a more detailed discusion of color measurement see F. W. Billmeyer, Jr. and M. Saltman in "Principles of Color Technology, Second Edition", John Wiley & Sons, 1981 .

T. E. Rusch and D. S. Raden , Plastics Compounding 7/8, 61 (1980 ).

L* is a measure of lightness and therefore decreases with increased concentration of color. See reference 7.

The examples shown in this paper were selected to demonstrate the versatility of REACTINT™ Colorants and should not be taken as recommendations for manufacturing procedures until appropriate tests and technical consultations are completed.