Polyurethane Based Technology

Today's waterborne polyurethane adhesives based on polyurethane dispersion raw materials achieve the same high level of performance that you have come to expect from solventborne polyurethane. They have become established throughout the world in demanding industrial applications.

Polyurethane dispersions offer many possibilities, like heat activatable systems. They can be used in both low temperature and wet bonding applications. They can be supplied at high solids content without the use of co-solvents and provide an environmentally-friendly alternative to solventborne adhesives.

We offer a wide range of high-performance, reactive chemistries based on urethane, solventless technologies. As a innovator in hot melt and liquid moisture curing polyurethane adhesives (PURs), we include one part polyurethanes, solventless, and polyurethane dispersions (PUDs). Our products serve diverse adhesive and sealant needs for footware, leather, panel assembly, door, flooring and window applications. Our combination of knowledge and innovation deliver the product performance as per customers’ needs and can simply improve and speed up the manufacturing process.

As a growing reactive adhesives manufacturer, our adhesives are based on latest modified technology designed to advance the productivity of manufacturing lines and provide targeted performance to enhance the functionality and value. Our capability of simulating our customers' manufacturing conditions so that we can tailor products to meet local needs. Our research & development base, innovation, product lines and adhesive technologies we use makes us unique.

Polyurethane Dispersion Technology:

Polyurethane Dispersions (PUD) have developed to address the increasing environmental demands on the adhesive industry to produce adhesives containing little or no solvent.

These types of products are aqueous, anionic dispersions of high molecular weight aliphatic polyester polyurethane, which are especially suitable for the manufacture of heat activated adhesives. They are high performance adhesive raw materials comparable to polyurethane resins used in solvent-based adhesives.

In the first step, a prepolymer is made from the reaction between an aliphatic polyster polyol and an aliphatic diisocyante, which is then diluted with acetone.

The introduction of anionic groups, such as sulfonates, enables this prepolymer to be dispersed in water.

The acetone is finally removed from the emulsion by distillation and then recycled for further production. Some types of products are also manufactured through an acetone-free process.

Crystallization of polyurethane dispersions

Through cooling of the adhesive film and crystallization of the PU, a high initial bond strength is obtained after a short time, even with one-component processing. Moreover, the tackiness of these systems can be switched on and off, enabling a highly effective production process.

Other adhesive technologies:

Water based technology
Solvent based technology
Hot Melt technology