Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1990-01-08
1992-04-21
Kight, III., John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528289, 528290, 528292, 528298, 528302, 528304, 528308, 5283086, 525441, 525445, C08G 6320
Patent
active
051069423
ABSTRACT:
Disclose are polyester color concentrates, especially amorphous and partially-crystalline, polyester color concentrates, comprising a polyester having copolymerized therein colored residues of at least one polyester-reactive, thermally-stable methine colorant compound. The color concentrates may be used to impart yellow shades and colors to various polymeric materials, shaped articles fabricated of and coatings formulated from such polymeric materials and, especially, personal, medical and home care products where non-extractability of the colorant material is essential. Also disclosed are colored semicrystalline powders derived from the color concentrates.
REFERENCES:
patent: 3931082 (1976-01-01), Cruz, Jr. et al.
patent: 4617373 (1986-10-01), Pruett et al.
patent: 4749774 (1988-06-01), Weaver et al.
Coates, Jr. Clarence A.
Krutak James J.
Oldfield Terry A.
Parham William W.
Weaver Max A.
Acquah Sam A.
Eastman Kodak Company
Graves, Jr. Bernard J.
Heath, Jr. William P.
Kight, III. John
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