NASA NTRS · 19660000110
Storage-stable foamable polyurethane is activated by heat
Abstract
Polyurethane foamable mixture remains inert in storage unit activated to produce a rapid foaming reaction. The storage-stable foamable composition is spread as a paste on the surface of an expandable structure and, when heated, yields a rigid open-cell polyurethane foam that is self-bondable to the substrate.
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1966-05-01. Storage-stable foamable polyurethane is activated by heat. https://ntrs.nasa.gov/citations/19660000110
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