Bonded foam product manufactured with vegetable oil polyol and method for manufacturing
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United States of America Patent
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Jul 28, 2009
Grant Date -
Nov 9, 2006
app pub date -
Sep 20, 2005
filing date -
May 5, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A bonded foam product manufactured with a vegetable oil polyol is herein disclosed. The pre-polymer for use as a binder in the manufacture of a bonded foam product comprises an isocyanate and a vegetable oil polyol, wherein the pre-polymer is substantially free of any petrochemical polyol. In another aspect, the invention is method for making a bonded foam product, the method comprising coating a plurality of foam pieces with a pre-polymer, the pre-polymer comprising an isocyanate and a vegetable oil polyol, wherein the pre-polymer is substantially free of any petrochemical polyol, compressing the foam pieces into a foam log of a desired density, and steaming the foam log to cure the pre-polymer. If desired, a process oil may be added to the pre-polymer to modify the viscosity of the pre-polymer.
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