Low-dust or dust-free dye preparations

U.S. Patent Number: 5366512

Abstract: The invention provides for the use of alkanediols of from 4 to 8 carbon atoms as dustproofing agents in solid dye preparations. Dye preparations (powders) which contain such alkanediols are extremely low-dusting.

Inventors: Mischke; Peter (Bad Soden am Taunus, DE), Opitz; Konrad (Liederbach, DE), Rebsamen; Karl (Hofheim am Taunus, DE)

Assignee: Hoechst Aktiengesellschaft (Frankfurt am Main, DE)

Application Number: 07/949,557

Issued: 1994-11-22

Expired: 2006-11-22

Classes: 8/524 ; 8/526; 8/611

Field of search: 8/524,526,611

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