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PU Coatings
Polyurethane can be used as one component system (1K formulation), where a high molecular weight PU is mixed with isocyanate that cures with moisture, though it can be used with non-isocyanate formulations as well. PU coatings are also widely used through two components systems (2K formulation) where a polyisocyanate reacts with a polyol or a polyamine. PU coatings bring color retention, better surface finish (high gloss), increased scratch and abrasion resistance as well as moisture resistance. They are applied on many different substrates in very diverse markets like automotive, aerospace, furniture, flooring, and textiles. Strong drivers for their use include low to zero VOC emissions and the potential use of renewable sources like bio-based polyols.

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Nov 19, 2004 | Industry News

Akzo Nobel Resins Announces Price Increase for Coating Resins Sold in North America

Akzo Nobel Resins, Louisville KY, announced a price increase for all Coating Resins sold in North America, to be effective January 10, 2005. The increase will be approximately 5% and will affect all...

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Feb 16, 2004 | Industry News

ColorMatch® pigment paste

Cray Valley, the worldwide well recognized thermoset Resins and Gel coats manufacturer announces to the Brazilian Composites and resin Market an extensive manufacturing and marketing technological...

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Jan 14, 2004 | Article

Development of VOC-Compliant Binders for Interior Wood Coatings

Special demands apply to lacquers and paints designed for furniture. Requirements for stackability, fast drying and resistance to blocking, solvents, chemicals and UV light all call for a thorough...

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Sep 10, 2003 | Article

Increasing Adhesion of UV Coatings on Wood

Coatings on wooden substrates for furniture, flooring and interior are a main application for radiation curing lacquers. Increased adhesion is an important target for development of UV coatings on...

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Technology To License

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A SpecialChem Client is offering a film-forming, self-crosslinking, air-curable material that absorbs and holds liquids, vapors and proteins...

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Jun 21, 2004 | Article

Solvent-Free and M-Pyrol-Free PUDs

Polyurethane dispersions (PUDs) are the polymers of choice for demanding applications. These waterborne polymers are low in VOCs and can be formulated to be in compliance with most federal, state...

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Feb 10, 2004 | Article

A Cost-Effective, Water-Reducible Polyester Polyol for Two-Component Waterborne Urethane Coatings

The 1990s brought the introduction of the first commercially available two-component (2K) waterborne polyurethane coatings technology in an effort to address VOC concerns and performance issues with...

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Dec 24, 2003 | Industry News

Noveon to Move Sancure(R) Polyurethane Dispersions to Avon Lake; Plans Future Growth Of Product Line

Noveon, Inc. announced plans to move production of its existing line of Sancure(R) polyurethane dispersions to Avon Lake, Ohio and plans to expand that line of products...

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Apr 2, 2003 | Article

Combinations of Malonate- and Pyrazole-Blocked Isocyanates to Improve Performance

Blocked isocyanates have been available for many years to produce room-temperature stable, one pack (1K), heat-curable coatings.1 As in all aspects of coating formulation, there is increasing demand...

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Jun 24, 2015 | Webinar

Wednesday Jun 24 2015

By Tushar Trivedi

As a PU coating formulator do you have the issue of CO2 generation causing defects such as pinholes and downglossing in your final film? Do you want faster through cure in high build 1K PU coatings?...

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