Optical brighteners

Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – With nitrogen – oxygen – or sulfur containing optical...

Reexamination Certificate

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Details

C544S193200

Reexamination Certificate

active

10568638

ABSTRACT:
The invention relates to novel bis(triazinylamino)stilbenes which are suitable as UV absorbers and fluorescent whiteners for textile materials and also bring about an increase in the treated textile material.

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patent: 1955431 (1969-11-01), None
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patent: 751997 (1956-07-01), None

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