Product Application
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dose of 100 mg/kg for 5 days a week for 3 weeks
these polarizers play an important role in the development of display technology . The main types of them are designed for the visible spectrum and applied in liquid crystal display devices (LCD) intended for products and devices of a wide technical and domestic purposes (such as measuring devices, the latent image identifiers that protect trademarks and securities forgery panels with indicator light, personal computers (PCs), notebook, electronic watches and calculators) . The biggest market for sheet polarizers is the flat-panel display industry.
1. E. I. du Pont de Nemours and Company technical product, m.p. 111–112°, was used.
2. The time required for the addition varies from 1.5 to 2 hours.
3. There must be an excess of sodium carbonate to prevent the troublesome frothing caused by the liberation of carbon dioxide near the end of the coupling reaction.
4. The addition must be regulated so as to prevent the formation of large chunks of sodium carbonate decahydrate.
