Oxazolidines as Latent Curing Agents

Showing posts with label Polyurethane Prepolymers. Show all posts
Showing posts with label Polyurethane Prepolymers. Show all posts

Thursday, April 16, 2015

Waterborne polyurethane – their application areas and more

Polyurethane Dispersions (PUDs) are used in:
  • Coatings for flexible films
  • Coatings for rigid plastic
  • High performance coatings

The modern day evolved waterborne polyurethane provide to the user industries a lot better choice than solvent based polymers, especially when there is still a lot of regulatory pressure to eliminate the usage of products that contain solvents like pyrrolidone.

If you need waterborne polyurethane or custom chemistry to take on your competition and enhance your performance and productivity, then you should get the products from a chemical major that understands the significance of custom chemistry. Leverage the capabilities of search engines like Google and Bing to find out the companies that offer custom chemistry or high quality range of waterborne polyurethane. Check with a few of them to figure out which chemical company would best fit your unique needs.

 A few chemical companies have adopted innovative approach in their chemical making and have come up with some brilliant products. Whether you’d need waterborne polyurethane dispersions, oxazolidines, Aldimines, waterborne epoxy curing agents, you’d find it all with a chemical company that has been in market for long and believes in custom chemistry.

To know more about polyurethane or other chemical products, please read our other posts that have been published here.

Tuesday, February 14, 2012

Polyurethane Prepolymers – Meant for excellent solvents resistance

A large number of industries make the use of polyurethane prepolymers because of their amazing chemical resistance along with solvents and graffiti. The only issue with these prepolymers is their high cost. It restricts their usage and used only in certain applications. They are used in the production of sealants, expansion joints, and adhesives. For more diverse use, they are used on the interior walls of hospitals, schools, and other public buildings.

In short, polyurethane prepolymers are used in those applications that require a great resistance against chemicals and solvents. There are certain advantages of using these agents such as they show amazing weather stability and colorfastness. The advent of these prepolymers has brought great advantage to adhesive and sealant formulators. The formulators can now expect optimum efficiency and enhanced performance benefits, and this is the major reason why these products are high in demand all over the world. Nowadays, there are large numbers of companies involved into the manufacturing of these polyurethane prepolymers and waterborne epoxy agents.

Don’t forget to do a detailed research on polyurethane prepolymers that will help you locating the most perfect manufacturer/supplier for your application. The more dedication you will show in your research, the better results you will get in terms of great chemical resistance and long lasting

Thursday, May 19, 2011

Polyurethane Prepolymers – For Sealants, Expansion Joints, Coating and Adhesives

Aliphatic Polyurethane Prepolymers are always in demand by various industries from all over the globe. And they are extensively used in the production of sealants, expansion joints, coatings, and adhesives. There are n numbers of companies which are into the manufacturing of Polyurethane Prepolymers so as to meet the ever-growing demand from various industries. So, if your business is in need, you can easily choose a seller/manufacturer/supplier.

Many of such companies (involved in the manufacturing of Polyurethane Prepolymers) have their own websites. So, you can easily browse such companies online and choose the best supplier for your business needs. It is good to take your time, doing market research and then, choosing the supplier which could match and exceed your needs in the best manner possible.

You can place order for waterborne epoxy curing agents as well, if you are in need. And since there are so many suppliers in the market, you will be able to receive the best-quality products at very competitive prices. However, you would be required to undergo an extensive market research so that you could get the best within your budget. Coming back to Polyurethane Prepolymers, make sure you place order with a reliable and experienced supplier only, and not a new entrant in the industry.

Sunday, December 5, 2010

Waterborne Polyurethane Prepolymers

The demand for waterborne polyurethane coatings is surging day by day with large number of users using it for the trade coating of wood and parquet floors. Their quality of producing very small amount of volatile organic compounds (VOC) makes them every useful. They are almost odorless and are almost nil polyurethane dispersion available that do not contain N-methyl pyrrolidione (NMP).

It is obvious that new waterborne polyurethane prepolymers require less co-solvent to produce good coatings than the products containing NMP. The waterborne polyurethane coatings are in huge demand due to their unmatched resistance to abrasion and high mechanical resistance properties.

Nowadays, the manufacturers have developed the new polyurethane dispersions by replacing the old polymer mixing process which includes NMP as a solvent with the acetone process. The acetone process requires adjusting the recipes for the dispersions to be responsible for the lower solvent power of the acetone, which is distilled off following the creation of the prepolymer to get a solvent-free product.

Waterborne polyurethane prepolymers offer excellent chemical resistance and high finish. The final product can be used separately or in association with NMP-free polyurethane dispersions as the A component in two-component systems.

Sunday, August 1, 2010

Numerous Advantages of Polyurethane Prepolymers

Although there are numerous products in the market that are being used for various commercial and personal projects but Polyurethane Prepolymers have their own value and importance. The latest series consist of aromatic polyurethane prepolymers generally used in the production of coatings, sealants, and adhersives.
Under the process, curing takes place by direct contact with atmospheric moisture to deliver tough, resilient polymers with outstanding durability.
The various applications include:
• Sports and Playground Surfacing
• Rubber Crumb Binder
• Dust sealer for Concrete
• Hard, Tough Floor Coatings
• Polyurethane Sealants
• Polyurethane Adhesives
Another kind of prepolymer consists of alipathic polyurethane prepolymers generally used in the production of sealants, expansion joints, coatings and adhesives.
Here curing takes place by direct contact with atmospheric moisture by use of an oxazolidine latent hardener.
The typical applications of this polymer include:
• Adhesives
• Sealants
• High Performance Coatings
• Block Paving Seal
• Concrete Sealer
• Wood Lacquers