Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From ketone or ketene reactant
Patent
1989-08-30
1991-07-16
Ivy, C. Warren
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From ketone or ketene reactant
528226, 528228, 528288, 528291, 528292, 8643, 8647, 552238, C08G 200, C08G 1200, C09B 116
Patent
active
050326708
ABSTRACT:
Disclosed are color concentrate compositions which comprise a polyester having copolymerized therein at least 0.5 weight percent of an anthraquinone colorant compound having the formula ##STR1## wherein AQ is a 1,5- or 1,8-anthraquinonylene radical; R.sup.1 and R.sup.2 are the same or different and are unsubstituted or substituted alkyl, cycloalkyl or aryl; and X is a group reactive with at least one of the functional groups of the monomers from which the polyester is prepared. Amorphous polyesters and partially-crystalline polyesters are preferred embodiments of the color concentrates. Also disclosed are colored semicrystalline powders which may be obtained from the amorphous and partially-crystalline color concentrates by a dissolution-crystallization-precipitation procedure.
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Coates, Jr. Clarence A.
Krutak James J.
Oldfield Terry A.
Parham William W.
Weaver Max A.
Covington Raymond
Eastman Kodak Company
Graves, Jr. Bernard J.
Heath, Jr. William P.
Ivy C. Warren
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