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:
Dec. 29, 1987
Filed:
Oct. 23, 1985
Applicant:
Inventors:
Gerhard Mack, Wiesbaden, DE;
Birgit Mueller, Wiesbaden, DE;
Guenter Jung, Taunusstein, DE;
Werner Frass, Wiesbaden, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Primary Examiner:
Int. Cl.
CPC ...
G03F / ;
U.S. Cl.
CPC ...
430331 ; 252156 ; 252525 ; 252544 ; 252173 ; 25217414 ; 25217421 ; 25217422 ; 25217423 ; 25217424 ; 252175 ; 430302 ;
Abstract
A developer for negative-working reproduction layers and process therefor. The developer includes water, an organic solvent, a surface-active agent, an alkaline agent, a complexing agent, a buffer substance, an emulsifier and an n-alkanoic compound. Use of the developer suppresses speck and fibril formation in the developing process, and can be used in reproduction layers which optionally contain a binder.