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. 14, 1978
Filed:
Sep. 03, 1976
Applicant:
Inventor:
Gail H Birum, Kirkwood, MO (US);
Assignee:
Monsanto Company, St. Louis, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F / ; C08K / ;
U.S. Cl.
CPC ...
260 / ; 2609 / ; 260937 ;
Abstract
The present invention relates to cyclic phosphorus compounds and processes for the preparation thereof. The present invention relates to a process for the preparation of certain derivatives of cyclic hydrogenphosphonates. Azomethine, sulfonyl isocyanate, isocyanate, and isothiocyanate derivatives are a part of the present invention. The cyclic phosphorus compounds are useful as flame retardants with organic polymers, such as polyurethanes, polyesters, and polyamides.
Birum, Gail. (1978). Hydrogen phosphonates and polymers containing them as flame retardants (U.S. Patent No. 4073767). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4073767
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile