Solvent-based contact cements, such as those based on chloroprene rubber, were traditionally used for this application. They work very well and are available in spray or aerosol versions. However, many users are now reluctant to use them because of emissions regulations, safety concerns or disposal issues.
Isocyanates react with compounds that have active hydrogens. For example, in coating applications, isocyanates are typically reacted with polyols to form polyurethanes, or with primary and secondary amines to form polyureas. Catalysis of the polyol/isocyanate reaction, which is often required to develop sufficient cure response, can be achieved with a variety of compounds.
Currently, the North America region is reported as the largest for the composite adhesives market, in terms of both value and volume with the U.S.
June 6, 2017
The market was valued at $1.13 billion in 2016 and is projected to reach $1.78 billion by 2022, at a compound annual growth rate (CAGR) of 7.9% from 2017 to 2022.
NUWC XP-1 is a high-performance polyurethane developed for protection of marine acoustic and optical equipment.
May 17, 2017
The Naval Undersea Warfare Center (NUWC) Division Newport has recently entered into an agreement with ALFA International Inc. for the commercialization of a high-performance polyurethane.
Scaling up products from the laboratory to field trials to full production can often be problematic, whether a new polymer is being developed or a formulated finished adhesive is manufactured. If bond failures are occurring during production, the plant may go back to the adhesive supplier and claim the adhesive is at fault.
This weekly roundup highlights the adhesives, sealants and coatings news stories that garnered the most attention during the previous week on our website, as well as our eNewsletter and social media platforms.
Accella Polyurethane Systems LLC recently announced it has completed the purchase of certain assets of the North American spray polyurethane foam (SPF) business from Covestro LLC.
April 10, 2017
"We are very pleased to announce the completion of this important acquisition,” said Andy Harris CEO and president.