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. 12, 1985
Filed:
Aug. 15, 1983
Michel Bernard, Levallois, FR;
Daniel Balde, Paris, FR;
Elie Ghenassia, Chocques, FR;
Francois Laumain, Levallois, FR;
Abstract
Phosphorus-containing flame proofing mixtures with low crystallization temperatures and with the ability significantly to improve the flame resistance of materials without adversely affecting the other properties of the materials, the mixtures being principally comprised of phosphonates having the structure: ##STR1## wherein X is chloro or bromo; Z.sub.1, Z.sub.2 and Z.sub.3 are the same or different and are --CH.sub.2 --CH.sub.2 -- or ##STR2## and R is CH.sub.3 or CH.sub.2 Cl, and the molar ratio of the --CH.sub.2 --CH.sub.2 --X groups to the total of --CH.sub.2 --CH.sub.2 --X and the --CH.sub.2 --CHR--X groups is from 2 to 90%, these flame proofing mixtures being usable with both synthetic and natural materials, together with the flame-resistive natural and synthetic materials so made.