Rubber product identification by tagging

Details Rubber product identification by tagging Rubber product identification by tagging

1990-10-24

1992-09-08

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of inorganic material

428917, 428328, 428492, 52515, 25230117, 25230118, 25230119, 2504871, 524433, 524423, B27K 100

Patent

active

051457504

ABSTRACT:
The present invention provides for 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: 4533489 (1985-08-01), Utts et al.
patent: 4937995 (1990-07-01), Deffeyes et al.

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