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:
Nov. 26, 2024
Filed:
Dec. 18, 2019
Applicant:
Lanxess Corporation, Pittsburgh, PA (US);
Inventors:
Julia Yue Lee, Naugatuck, CT (US);
Qingliang He, Cheshire, CT (US);
Assignee:
LANXESS Corporation, Pittsburgh, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/5317 (2006.01); C07F 9/38 (2006.01); C08K 3/22 (2006.01); C08K 3/40 (2006.01); C08K 5/00 (2006.01); C08K 5/3492 (2006.01); C08L 77/02 (2006.01); C08L 77/10 (2006.01);
U.S. Cl.
CPC ...
C08K 5/5317 (2013.01); C07F 9/3808 (2013.01); C08K 3/22 (2013.01); C08K 3/40 (2013.01); C08K 5/0066 (2013.01); C08K 5/34922 (2013.01); C08L 77/02 (2013.01); C08L 77/10 (2013.01); C08K 2003/2206 (2013.01); C08K 2003/2296 (2013.01); C08K 2201/005 (2013.01); C08L 2201/02 (2013.01);
Abstract
The present disclosure provides for the production of non-halogenated phosphorus containing, thermally stable flame retardant materials directly in the form of a powder or small particles. The process generally includes heating one or more phosphonic acid salts in a high boiling, water miscible, acid stable solvent to dehydration reaction temperatures of 200° C. or higher.