Rubber product identification by tagging

Details Rubber product identification by tagging Rubber product identification by tagging

1992-05-29

1994-01-11

Church, Craig E.

X-ray or gamma ray systems or devices

Specific application

Fluorescence

378210, G01N 23223

Patent

active

052788857

ABSTRACT:
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 agent 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.

REFERENCES:
patent: 4639942 (1987-01-01), Puumalainen

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