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:
Oct. 24, 1989
Filed:
May. 26, 1988
Reinhard Pedrazzi, Allschwil, CH;
Sandoz Ltd., Basel, CH;
Abstract
Oxazine compounds containing basic groups correspond to the formula ##STR1## wherein the symbols are as defined in the Specification. These compounds are suitable for dyeing or printing organic substrates containing hydroxy groups or nitrogen in accordance with known methods. Preferred substrates are textile materials which consist of or contain natural or regenerated cellulose, e.g. cotton, but also bast fibres or leather. Most preferred substrates are paper or paper products. Furthermore, these compounds can be used to prepare all kinds of inks, such as ball-pen inks or printing inks. Similarly, a mixture of one or more of the above compounds together with one or more copper phthalocyanine dyes containing basic and/or cationic groups can be used as dyeing or printing agent.