- The 'H' in HPMC signifies the hydroxypropyl group, an essential component that imparts unique properties to the substance. This group makes it more soluble in water, enhancing its functionality in aqueous systems. The 'P' represents the propyl group, which further modifies the characteristics of cellulose, making it more stable and adaptable to different conditions.
- In conclusion, redispersible polymer powders are not just a simple ingredient; they are a technological breakthrough that has revolutionized the way we approach construction and chemical applications. With ongoing research and development, their role in the industry is poised to expand even further, contributing to more durable, efficient, and environmentally friendly solutions.

HYDROCEL – HPMC/HYPROMELLOSE
HPMC Structural:
Hydroxypropyl methyl cellulose (E 464) is currently authorised as a feed additive for all animal species, without a minimum and a maximum content. It is also authorised, quantum satis, for use as a food additive.
Declaration of ingredients on the label


The etherification of cellulose disrupts the hydrogen bonding and the resulting compounds are not ionised and more water soluble. The EFSA ANS Panel (2018) concluded that modified celluloses including ethyl and methyl, hydroxypropyl celluloses, would not be absorbed intact and not fermented in the gastrointestinal tract of animals (rat) or humans; they are excreted essentially unchanged mainly via the faeces (more than 90% of the administrated doses), while only minor amounts of metabolites and derived-products are excreted via urine or expired air (as 14CO2) and there is no indication for accumulation in the body.
Chemical Structure

hydroxyéthyl cellulose. In pharmaceuticals, HEC gels are used in topical formulations such as gels, creams, and ointments for their ability to deliver active ingredients to the skin in a controlled and sustained manner. In food products, HEC gels are used as thickeners and stabilizers in products such as sauces, dressings, and desserts to improve texture and mouthfeel.
2)Applying another layer on top before the underlying layer has dried, which can also lead to bubbling.
Fertigpräparate als „künstliche Tränen“ (Auswahl):