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:
Jun. 10, 2003
Filed:
Jul. 02, 2001
Applicant:
Inventors:
Karl-Rudolf Gassen, Ratingen, DE;
Joachim König, Odenthal, DE;
Karlheinrich Meisel, Odenthal, DE;
Fritz Puchner, Köln, DE;
Jürgen Reiners, Leverkusen, DE;
Horst Zwick, Dormagen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K 3/24 ;
U.S. Cl.
CPC ...
C08K 3/24 ;
Abstract
The invention relates to a novel process for the preparation of polycondensate solutions based on polyamidoamine/epichlorohydrin resins that gives products having a very low content of organic chlorine compounds, in particular a 1,3-dichlorophenol-2-propanol content of <0.1%, in combination with high activity and good shelf-life.