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. 03, 1991
Filed:
Jun. 16, 1989
Applicant:
Inventors:
Erwin Dietz, Kelkheim, DE;
Andreas Sommer, Niedernhausen, DE;
Adolf Kroh, Selters, DE;
Jurgen Hohn, Kelkheim, DE;
Otmar Hafner, Glashutten, DE;
Wolfgang Rieper, Frankfurt am Main, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
525504 ; 528 98 ; 528 99 ; 528120 ; 525502 ; 523400 ; 523417 ; 2523635 ;
Abstract
Addition compounds which are suitable as dispersants for solids in organic media are obtained from polyepoxides based on novolaks having 3 to 11 nuclei and a mixture of aliphatic, aromatic and/or heterocyclic amines.