C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 11/57 (2006.01) C08K 3/22 (2006.01) C08K 3/30 (2006.01) C09K 11/02 (2006.01) C09K 11/55 (2006.01) G01N 33/44 (2006.01) G06K 19/06 (2006.01) G01N 1/38 (2006.01)
Patent
CA 2054011
ABSTRACT OF THE DISCLOSURE The present invention provides a method for positive product identification using tagging materials such as barium sulfate, manganese dioxide or mixtures thereof. Such materials may be employed, for example, in the dusting agents used in roofing materials, and applied to one or both sides of rubber roofing sheeting or admixed with the compounding ingredients during the preparation of the sheeting composition. The tagging materials can be detected and identified in the finished product by X-ray fluorescence spectroscopy.
Davis James A.
Lucas Kenneth R.
Bridgestone Corporation
Davis James A.
Lucas Kenneth R.
Swabey Ogilvy Renault
LandOfFree
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