The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 30, 1989
Filed:
Dec. 08, 1987
Applicant:
Inventors:
Michel Dien, Rixheim, FR;
Herbert Holliger, Allschwil, CH;
Assignee:
Sandoz Ltd., Basel, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D06P / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
8436 ; 8658 ; 8676 ; 8679 ; 544 76 ; 546103 ; 546105 ; 546106 ;
Abstract
Dye compositions containing (a) at least one blue sulpho group-containing triphendioxazine dye and (b) at least one blue sulpho group-containing anthraquinone dye and preferably (c) lignine sulphonic acid or a salt of it and optionally (d) a non-ionic blending agent are outstandingly suitable for the level and fast dyeing of leather substrates.