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Ryuron®

What is Ryuron?

The brand name Ryuron is Tosoh’s PVC resulting from its pioneer PVC business in Japan and is famous for its premium quality. STATOMER applies strict quality control to achieve a high standard of quality assurance following the guidance of Tosoh Corporation.

Ryuron is applicable to various processes and products with their respective characteristics and properties. Ryuron is widely known as the best product in processability, plasticizer absorption, dispersion, gelation, heat stability, transparency, ease of coloring, and reduced fish eye.


Specifications

Grade STM-57 STM-65 STM-65S STM-70
Appearance White powder White powder White powder White powder
Polymerization degree, (P) 700 ± 30 1000 ± 40 1000 ± 40 1300 ± 40
K-Value (approximation) 57 65 65 70
Volatile matter (%) Max. 0.5 Max. 0.3 Max. 0.3 Max. 0.3
Bulk density (g/cc) 0.58 ± 0.05 0.54 ± 0.05 0.52 ± 0.05 0.50 ± 0.05
Particle size (42 mesh pass, %) Min. 99.9 Min. 99.9 Min. 99.9 Min. 99.9