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:
Jan. 21, 1986
Filed:
Aug. 15, 1983
Applicant:
Inventors:
Richard Kopp, Cologne, DE;
Wolfgang Reichmann, Hilden, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
252397 ; 2604 / ; 260463 ; 514512 ;
Abstract
A process for producing storage-stable solutions of pyrocarbonic acid dialkyl esters in organic liquids inert to these esters comprising adding certain carbonyl compounds, sulfonyl compounds and/or thiourea to these pyrocarbonic acid dialkyl ester solutions. Also the use of these carbonyl compounds, sulfonyl compounds and/or thiourea for producing stabilized polyisocyanate preparations suitable for the production of polyurethane foams.