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:
Jun. 25, 2013
Filed:
Mar. 02, 2009
Udo Glauner, Sindelfingen, DE;
Uwe Storzer, Tuebingen, DE;
Holger Keller, Reppenstedt, DE;
Horst Rieckert, Calw, DE;
Udo Glauner, Sindelfingen, DE;
Uwe Storzer, Tuebingen, DE;
Holger Keller, Reppenstedt, DE;
Horst Rieckert, Calw, DE;
Schill + Seilacher AG, , DE;
Abstract
A halogen-free flame retardant obtainable by polycondensation of phosphoric monomers with esterifying monomers is provided. The phosphoric monomer is an adduct of 9,10-dihydro-9-oxa-10-phospha-phenanthrene-10-oxide (DOPO) and ring substituted DOPO derivatives to unsaturated carboxylic acids. Monovalent and polyvalent alcohols are used as esterifying monomers. The flame retardant has an average molecular weight of more than 20,000 and an average degree of polymerization Pof at least 55, and is preferably used for the production of polyamide fibers and polyester fibers by melt spinning.