Foamed isocyanate-based polymer having improved hardness properties and process for production thereof
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United States of America Patent
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Issued Date -
Jan 27, 2005
app pub date -
Nov 21, 2003
filing date -
Nov 22, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to the surprising and unexpected discovery that a sub-group of phenolic resins (i.e., those which are substantially completely free of ether moieties) is particularly advantageous to confer load building properties to an isocyanate-based foam (e.g., a polyurethane foam). Indeed, its possible to utilize the sub-group of phenolic resins to partially or fully displace copolymer polyols conventionally used to confer load building characteristics to isocyanate-based polymer foams. Further, the invention relates to the surprising and unexpected discovery that a sub-group of phenolic resins (i.e., those which are substantially completely free of ether moieties) is particularly advantageous to confer energy absorption properties in an isocyanate-based foam.
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