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:
Mar. 11, 2008
Filed:
Jun. 18, 2003
Wolfgang Mueller, Rudolstadt, DE;
Erich Meusel, Katzhuette, DE;
Klaus Heinemann, Rudolstadt, DE;
Eberhard Taeger, Weissbach ueber Rudolstadt, DE;
Wolfgang Mueller, Rudolstadt, DE;
Erich Meusel, Katzhuette, DE;
Klaus Heinemann, Rudolstadt, DE;
Eberhard Taeger, Weissbach ueber Rudolstadt, DE;
Abstract
The invention relates to a method for producing novel reactive organic compounds containing poly-DOPO and having a higher phosphorus content than known comparable DOPO (9,10-dihydro-9-oxa-10-phospha-phenenthrene-10-oxide) adducts, and to the use thereof for flameproofing thermoplastic polymers, such as polyesters and polyamides. The same flameproofing effect is achieved with smaller additive quantities than previously, thus reducing the influence of the physical, especially textile-physical properties of the polymers. The adducts containing poly-DOPO are formed by reacting DOPO with acetylenes carrying reactive groups, in the presence of a catalyst.