No isocyanate or polyol makes better PUR foam. (RIM/Urethanes).
A new family of hybrid polyurethanes made without isocyanates or polyols boasts greater hydrolytic hy·drol·y·sis
n.
Decomposition of a chemical compound by reaction with water, such as the dissociation of a dissolved salt or the catalytic conversion of starch to glucose. stability, higher chemical resistance, and lower permeability than conventional PUR. HNIPU (hybrid non-isocyanate polyurethane) from Eurotech, Ltd. in Fairfax, Va., is a two-component system based on cyclocarbonates and primary amines (Chem.) an amine containing the amido group, or a derivative of ammonia in which only one atom of hydrogen has been replaced by a basic radical; - distinguished from secondary .
See also: Primary . Unlike standard PUR, HNIPU is nonporous and does not absorb moisture. It also cures at ambient temperature Outside temperature at any given altitude, preferably expressed in degrees centigrade. without toxic chemicals. HINPU can produce rigid and semi-rigid foams, coatings, sealants, and adhesives. Potential uses include auto instrument panels, sound-damping fabrics, pipe insulation, refrigeration refrigeration, process for drawing heat from substances to lower their temperature, often for purposes of preservation. Refrigeration in its modern, portable form also depends on insulating materials that are thin yet effective. , and packaging.
Tel: (703) 352-4399, www.eurotechlted.com
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