Steven A Hubbard

US Patent:

RE41616, Aug 31, 2010

Filed:

Dec 17, 2003

Appl. No.:

10/738702

Inventors:

Steven Frederick Hubbard - Olmsted Township OH, US
Radislav Alexandrovich Potyrailo - Niskayuna NY, US
Philippe Schottland - West Chester OH, US
Verghese Thomas - Evansville IN, US

Assignee:

Sabic Innovative Plastics IP B.V. - Bergen op Zoom

International Classification:

C08G 64/00
C08G 63/02

US Classification:

528196, 428412, 428421, 436 56, 526342, 528190, 528193, 528271, 528272

Abstract:

A polymer comprising a tagging material is provided wherein the tagging material comprises at least one organic fluorophore dye, or at least one inorganic fluorophore, or at least one organometallic fluorophore, or at least one semi-conducting luminescent nanoparticle, or combination thereof, wherein the tagging material has a temperature stability of at least about 350 C. and is present in a sufficient quantity such that the tagging material is detectible via a spectrofluorometer at an excitation wavelength in a range between about 100 nanometers and about 1100 nanometers. Further embodiments of the present invention include a method for identifying a polymer and an article comprising a polymer wherein the polymer contains the aforementioned tagging material.