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:
Sep. 05, 1978
Filed:
Oct. 01, 1976
Applicant:
Inventors:
Borivoj Richard Franko-Filipasic, Morrisville, PA (US);
Edward F Orwoll, Langhorne, PA (US);
Vithal C Patel, Glen Burnie, MD (US);
Assignee:
Avtex Fibers Inc., Valley Forge, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ;
U.S. Cl.
CPC ...
106 / ; 106165 ; 106177 ;
Abstract
Flame-retarded regenerated cellulose filaments and filamentary articles having dispersed therein polymeric phosphazenes with P-O-P oxygen linkages that are prepared through the condensation of alkyl esters of phosphorus acids with acid halides of phosphorus acids with elimination of alkyl halides; and method for their preparation.