Eipponcell® HPMC K 100 Hydroxypropyl Methyl Cellulose (HPMC)
Physical Analysis
Appearance	White to slightly off-white fibrous or granular powder.
Identification A to E	Conform
Solution appearance	Conform
Methoxy	19.0-24.0%
Hydroxypropoxy	4.0-12.0%
Loss on drying	5.0% Max
Residue on ignition	1.5% Max
pH	5.0-8.0
Apparent viscosity	80.0-120.0cps
Particle size	Min. 98% pass through 100 mesh
Heavy Metals
Heavy Metal	≤10ppm
Arsenic	≤3ppm
Lead	≤3ppm
Mercury	≤1ppm
Cadmium	≤1ppm

EipponCell® HPMC K 100 is commonly employed as the primary dispersant during the polyvinyl chloride (PVC) production process. As the viscosity increases and the hydroxypropyl content decreases, the dispersion ability weakens, while the glue retention ability strengthens, leading to an increase in the average particle size and apparent density of the PVC resin. By adjusting the concentration of HPMC, its adhesive retention ability can be enhanced, resulting in a reduction in the average particle size of the resin. Additionally, when used in combination with polyvinyl alcohol, HPMC can effectively improve the particle characteristics of the resin, resulting in PVC resin with desirable properties such as good particle shape, particle size distribution, and concentrated porosity.