Oxazolidines as Latent Curing Agents

Wednesday, June 19, 2013

The growth of polyurethane dispersions

In industries, the usage of polyurethane dispersion is promoted, as it is known to be the best and the safest substitute for solvent based coatings. These solvent based coatings are eco-friendly in nature. A waterborne dispersion is also termed as PUD.

They are growing rapidly in the polyurethane coating industry and its usage has increased due to some environment legislations. The usage of these coatings has also increased in the industry, due to various technological advances.

polyurethane dispersions are made up of fully reacted polyureas, which comprises of small and discrete polymer particles, which ranges from 0.01-5.0 microns in a continuous water phase. They do not have isocyanate residues and consist of zero or a very low level of volatile organic content. They are safe to use and are very good for compliant coating applications. 

Diverse kinds of foams are manufactured with this product. The flexible foam is used in the upholstery sector and the rigid foams are used inside the walls of refrigerators and freezers. The foams are also used in car seats, head rests, and arm rests. Thermal insulation panels are also designed using this product.

The polyurethane consists of mild fibers that can make beautiful stretchable dresses. They are also widely used in electronics, furniture, sealing of cracks, furnishings, flooring, medical applications, and packaging. They are also used as adhesives and in shoe and furniture industry.