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:
Feb. 24, 1987
Filed:
Aug. 09, 1985
Applicant:
Inventors:
Joel Perthuis, Bernay, FR;
Pierre Poisson, Bernay, FR;
Assignee:
Atochem, , FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524106 ; 524540 ; 260D / ;
Abstract
Polycarbonate-based compositions the fire-resistance of which is improved with small but effective amounts of a urazole salt having the formula: ##STR1## wherein R and R' are the same or different and are hydrogen, an alkyl group having from one to six carbon atoms, phenyl, or halosubstituted phenyl, and M is an alkali metal, many of such fire-resistive polycarbonates being transparent, together with method for preparing such fire-resistive polycarbonates.