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. 17, 2009
Filed:
Apr. 28, 2000
Stephen Clifford Brown, Bicester, GB;
Marie-laure Bastiment, Le Mesnil Saint Denis, FR;
Kenneth Arthur Evans, Chalfont St. Peter, GB;
Javier Prieto Garcia, Abingdon, GB;
Stephen Clifford Brown, Bicester, GB;
Marie-Laure Bastiment, Le Mesnil Saint Denis, FR;
Kenneth Arthur Evans, Chalfont St. Peter, GB;
Javier Prieto Garcia, Abingdon, GB;
Rockwood Clay Additives, GmbH, Moosburg, DE;
Abstract
A polymer composition is provided that comprises a polymer and a synergistic flame retardant additive combination which comprises a nano-clay and a second filler. The second filler may be a material with known flame retardant properties, an inert filler or a combination of the same. The preferred nano-clay is Cloisite, the preferred second filler is aluminium trihydroxide. The presence of this flame retardant additive combination in polymers increases the strength of the char that forms during combustion. The formation of a strong char creates a barrier to ignition of the underlying material, for example electrical cables that have been provided with a coating of the polymeric composition.