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.
Adhesive and sealant industry professionals can learn about new technologies and innovations at the upcoming ASC Convention and Expo.
March 1, 2016
The Adhesive and Sealant Council (ASC) Spring Convention and Expo will take place April 18-20 at the Hilton New Orleans Riverside. The three-day event will include concurrent technical sessions focusing on business development and market trends, government relations issues, and advanced technology, as well as an Expo.
Formulating pressure-sensitive adhesives (PSAs) presents a number of complex challenges. The adhesive must flow and set without activation from anything more than the pressure of a hand, remain permanently tacky, and exhibit a strong bond—often to a variety of substrates, such as wood, glass, or metal—for as long as the application requires or until the end user decides to remove it.
I work in the technical department developing coatings based on various polymer backbones. I am familiar with typical polyurethane raw materials, but have recently become aware of polyaspartic coatings. Could you provide an overview of this technology?
The global consumption of coatings, adhesives, sealants and inks (CASI) is being driven primarily by construction applications.
March 1, 2016
Global consumption of coatings, adhesives, sealants and inks (CASI) was 54.1 million tons in 2014, worth $182.6 billion, according to Kusumgar, Nerlfi & Growney. Volume growth is forecast at a 5% annual rate, with coatings, adhesives and sealants matching the overall growth, but inks trailing at only 2% per year.