Polyurethanes can be one- or two-component systems. The single-component systems comprise a polyester or polyether polyol that has been end-capped with an isocyanate.
A definition of “bio-based” is a good starting point for this discussion. The U.S. Department of Agriculture (USDA) defines bio-based products as those derived from plants and other renewable agricultural, marine, and forestry materials. Standardized tests have been developed (ASTM D 6866) to quantify the bio-based content of a product or a raw material.
Accella Polyurethane Systems LLC recently announced it has agreed to purchase certain assets of Covestro LLC’s North American spray polyurethane foam (SPF) business.
February 28, 2017
The sale is scheduled to be completed in the second quarter.
An adhesives and sealants manufacturer helps a Canadian hospital to avoid water issues in additions.
January 2, 2017
When the Hawkesbury District & General Hospital (HGH) decided to build two large additions to its community hospital in Hawkesbury, Ontario, Canada, construction officials knew there was a big problem to solve.
A new polyol can extend the life of company equipment and facilities while meeting stringent federal containment regulations.
January 2, 2017
America’s infrastructure GPA stands at a D+, with an estimated $3.6 trillion of work needed by 2020 to repair the country’s out-of-date structures, bridges, roads, etc.1 Part of these issues lie within public parks and recreation, which are being used by a reported 140 million Americans on a daily basis.
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.
Concrete is the most widely used building material in the world, due to its versatility, durability and ease of use. But it is also predisposed to developing random cracks, which quickly become arteries for water, salts, chemicals and other foreign materials to seep in.