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Exhibit: Transparent Polymers
Commonly transparent polyamides consist of partly aromatic units that lend high rigidity and heat resistance. Substitution of the aromatic components with aliphatic monomers results in transparent polyamides with inherently better UV resistance. Evonik Industries provides both.
Our polyamide is crystallizable and permanently transparent. The crystallites are so small that they do not scatter visible light. The material thus appears transparent to the human eye, a property known as microcrystallinity.
The microcrystalline structure has the advantage that the positive properties arising from crystallinity, such as stress-cracking resistance, are retained without clouding of the material. The crystalline proportion is so low, however, that it does not negatively impact the shrinkage behavior of the molded part; the isotropic shrinkage behavior observed in amorphous materials is retained in our CX series. The material combines the chemical resistance of semicrystalline molding compounds with the advantages of amorphous, UV-resistant molding compounds.
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Angelika C. Bullinger-Hoffmann
Antje Maria Abel