US PATENT SUBCLASS 8 / 675
.~.~ Anthraquinone dye

Current as of: June, 1999
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8 /   HD   BLEACHING AND DYEING; FLUID TREATMENT AND CHEMICAL MODIFICATION OF TEXTILES AND FIBERS

636  DF  DYE OR POTENTIAL DYE COMPOSITION, ADDITIVE, TREATMENT, PROCESS, PRODUCT, OR ANCILLARY DYE OPERATION {12}
662  DF  .~ Azo, acridone, or quinone dye {15}
675.~.~ Anthraquinone dye {4}
676  DF  .~.~.~> Sulfonic acid or salt thereof or sulfonamide
677  DF  .~.~.~> Heterocyclic group
678  DF  .~.~.~> Phenoxy, phenol, mercapto, alkoxy, or thioalkyl group
679  DF  .~.~.~> Anilino group on the anthraquinone nucleus

DEFINITION

Classification: 8/675

Anthraquinone dye:

(under subclass 662) Subject matter involving an anthraquinone dye.

(1) Note. For example, included herein are the alizarine type, amino-anthraquinone, or lactam forming anthraquinone compounds.

SEE OR SEARCH THIS CLASS, SUBCLASS:

445, for patents restricted to significant printing with these dyes.

638, for dyeing alternatively with another dye and an anthraquinone.

650, for anthraquinone dyes of the vat-type.

SEE OR SEARCH CLASS

544, Organic Compounds, 187+, for anthraquinone dye compounds.

548, Organic Compounds,

300.4, and 356.5+ for anthraquinone dye compounds.