Degradation Inhibitors

M. Tamura, T. Ohishi, and H. Sakurai, Diphenylamine derivatives and degradation inhibitors for rubber polymers, US Patent 4298522, assigned to Nippon Zeon Co. Ltd. (Tokyo, JP), November 3,1981. 

Mechanisms of Degradation Inhibitors. The degradation mechanisms described above have no little effect on end-use stability and processing stability of polypropylene. Indeed, without stabilizers and antioxidants to inhibit such degradation reactions, polypropylene would have limited usefulness as a structural plastic if any usefulness at all. 

Failure to amplify the internal control may be due to nucleic acid degradation, inhibitors of amplification, or amplification failure. Regardless of the cause, when the internal control is not detected the assay is invalid. 

With the set-up it is possible to study the effect of solvent additives (eg foaming control, corrosion/degradation inhibitors). Therefore, the design of the pilot is such that differeut, uou-crystallising, solvent mixtures and modified types, both state-of-the-art chemical solvents and high load and activated solvents, can be tested. 

Ultraviolet protective agents and ultraviolet degradation inhibitors... 

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