This product is an aqueous solution of a branched polyethyleneimine polymer with a very high cationic charge density. This high charge density makes it a highly effective adhesion promoter, flocculant, and dispersing agent. It is offered as a clear-to-slightly-turbid viscous liquid containing 50% solids.
This polymer is infinitely soluble in water and can be easily diluted to working concentrations with water and most polar solvents. Due to the cationic nature of this product, it is recommended for use in nonionic and cationic formulations. The addition of Lupasol® P to anionic or highly acidic formulations can result in incompatibility. This product may be used as an adhesion promoter additive in compatible coating, ink, and adhesive systems to improve the adhesion to difficult substrates, such as paper, plastic, and metal.
This product is most commonly used in water-based primer formulations as a primer to improve the adhesion of coatings, inks, and adhesives. For example, in flexible packaging applications, it is applied to foils or low-surface energy films directly before applying adhesives to improve bonding between dissimilar materials.
Considerable improvement in the adhesion of UV-curable coatings and paints can be also obtained by using this product as a primer, where the increased adhesion helps mitigate the lateral shrinkage that occurs during curing.
In textile applications, cotton treated with this product is much more receptive to inks and flame retardants. This product is also very effective at chelating divalent heavy metals for water treatment applications, making them easier to remove by ultrafiltration. This chelation is reversible, and the heavy metals can then be recovered by electrodeposition.
Features & Benefits
Miscible with water in all proportions
Ames negative
Exhibits no detectable ethylenimine importunity
Forms insoluble matrix to fix and immobilize enzymes
Maximizes bonding using ionic, hydrogen, and Van der Waals forces
Compatibilizes and promotes adhesion between dissimilar substrates
Applications
Flexible packaging films
UV-curable coatings and inks
Textiles
Water treatment
Application
Detergents, adhesives, water treatment, printing inks, dyes, cosmetics, and paper industry, adhesion promoter, lamination primer, fixative agent, flocculant, cationic dispersant, stability enhancer, surface activator, chelating agent, scavenger for aldehydes and oxides. Protein precipitant.
G2601474