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:
May. 25, 1976
Filed:
Nov. 29, 1974
Applicant:
Inventors:
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604 / ; 260 / ; 260 / ; 260 / ; 2604 / ;
Abstract
Liquid and substantially non-crystalline aromatic polyisocyanate sulphonic acids or sulphonates and a process for the preparation thereof are disclosed which polyisocyanates are eminently suitable as presursors in the production of polyurethane foam resins and/or emulsifiers or wetting agents, hydraulic binders, thickening agents and cross-linking agents for vinyl polymers, polyurethanes, polyureas and polyamides.