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.:

US 7645877 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 12, 2010

Filed:

Sep. 14, 2005
Applicants:

Tobias Gmeiner, Constance, DE;

Edwin Kroke, Freiberg, DE;

Marcus Schwarz, Freiberg, DE;

Inventors:

Tobias Gmeiner, Constance, DE;

Edwin Kroke, Freiberg, DE;

Marcus Schwarz, Freiberg, DE;

Assignees:

Zylum Beteiligungsgesellschaft mbH & Co., Schönefeld/Waltersdorf, unknown;

Patente II KG, , DE;

Attorney:
Int. Cl.
CPC ...
C07D 251/72 (2006.01); C07F 9/6561 (2006.01); C08K 5/5399 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to unsymmetrical and symmetrical phosphorus-comprising heptazine derivatives, represented by the formula (1): in which R, Rand Rare, independently of one another, an azide group —Nor an —N═PRRRgroup, with the proviso that at least one radical from R, Rand Ris an —N═PRRRgroup, to a process for the preparation thereof and to the use thereof.


Find Patent Forward Citations

Gmeiner, Tobias. (2010). Heptazine derivatives containing phosphorus, method for the production thereof and use thereof as flame retardants (U.S. Patent No. 7645877). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7645877

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