Although acrylic based polymers have been used in a wide range of applications, their direct use as structural materials, coatings and adhesives has been limited due to their low impact resistance. A composition contains an acrylic resin and an...

It is an object of the present invention to provide a chemical conversion coating agent containing no chromium and capable of applying good chemical conversion treatment which is equal to or more than chemical conversion treatment by zinc phosphate...

PROBLEM TO BE SOLVED: To provide a tackifier resin emulsion which imparts excellent adhesive force even in a hot environment and can impart good adhesive force to a rough surface such as polyurethane foam, and an aqueous self-adhesive having...

Mar. 10 - Low-Viscosity Polyurethane Prepolymers for Use in Adhesives

The need to keep down levels of volatile isocyanate emitted from polyurethane adhesives often makes them highly viscous. There are ways around this, however, that as well as lowering viscosity can also improve adhesion to low surface energy...

Feb. 24 - Polyurea Adhesives and Sealants

This article provides an introduction to polyurea chemistry. It reviews the advantages and disadvantages of these interesting polymers in adhesive and sealant applications. Formulation principles are given to achieve adhesive and sealant products...

Feb. 10 - High Solids Adhesives and Their Fillers

Increasing concern about volatile organic compound emissions, embodied in building standards like LEED and Greenguard, are encouraging the uptake of high-solids adhesives. Use of surfactants and other stabilizers allow fillers to supplement the high...

Mar. 10 - Hot Melt Raw Material Availability by Andrew Extance

Backbone polymers, tackifiers and waxes all face availability issues in 2010. Moves to lighter feedstocks for cracking, increased demand and reduced supply of other raw materials look set to create a challenging year for hot-melt producers. Some of...

Feb. 24 - On-Line Monitoring of Polymerization Processes by Edward Petrie

This editorial describes developments that are taking place in on-line methods of tracking and controlling polymerization processes. Focus is given to a relatively new process (at least for thermoplastics) and one that appears to be very useful –...

Feb. 10 - Tapping Trees for Adhesive Raw Materials by Andy Extance

Talking about "tapping trees" for raw materials might still bring to mind 18th century scientists, exploiting the rubber ooze to make elastomeric adhesives. However waste from lumber mills can produce lignin- or tannin-based adhesives for wood...