Polyurethanes (as additives)

PURMOL® is a hydrophilic Molecular Sieve Powder

PURMOL® from Zeochem AG are molecular sieve powders and pastes which give the answer to moisture scavenging problems for a variety of applications. Types 3A and 4A are available in standard versions or synthesized and treated for special applications. (3STH and 4STH).

PURMOL® is available as Paste, including 50% castor oil

Some grades can even be used in the cosmetic field (face masks) or as additive in ointments (warming up)

Characteristics

PURMOL® adsorbents are synthetic zeolites with a complex alkali metal alumino-silicate structure.

This structure contains pore openings of regular and precisely defined size, allowing the adsorption of molecules selectively on the basis of their size and polarity.

Benefits

PURMOL® is largely used to remove moisture from polyurethane polymer systems.
PURMOL® products deal with moisture problems without causing undue problems with shelf-life viscosity etc. Other types are used as additives for selective adsorption in defined polymer systems, e.g.

Coatings
Sealants
Caulks
Adhesives
Pigment and Solvent Drying
Insulating Glass Rubber Profiles
Paper Manufacturing
Cosmetis and pharmaceutical applicatins

Other Applications
In addition, Purmol products may be added to adsorb contaminants such as carbon dioxide, hydrogen chloride, etc. from plastic formulations. They can also function as a carrier to release catalysts into certain systems.