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:
Mar. 02, 1976
Filed:
Apr. 02, 1974
Applicant:
Inventors:
Rolf Wiedermann, Bergisch-Gladbach, DT;
Andrea La Spina, Garbagnate Milan, IT;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08J / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 2608 / ; 2608 / ; 260841 ; 260849 ; 260858 ;
Abstract
A polyguanidine foam is prepared by reacting an amine or ammonia with a polycarbodiimide foam which has been prepared from a reaction mixture containing an addition product of an alcohol and a phospholine oxide or sulphide. The novel foam may be used for heat insulation or as an absorbent material.