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:
Aug. 17, 1976
Filed:
Feb. 06, 1974
Applicant:
Inventors:
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
260472 ; 260 / ;
Abstract
Aromatic di- and triamines are disclosed which amines are prepared by reacting isatoic acid anhydride with a compound containing at least two hydroxyl groups and at least one tertiary nitrogen group and having a molecular weight of from about 119 to about 1000. These amines are especially suited for preparing polyurethane resins by reaction with polyisocyanates.