Polyisocyanurate foam composites and their production and use
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United States of America Patent
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Jul 28, 2020
Grant Date -
Nov 3, 2016
app pub date -
Dec 15, 2014
filing date -
Dec 16, 2013
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Abstract
The invention relates to a method for the production of a rigid PIR foam composite containing man-made vitreous fibres (MMVF), the method comprising: providing MMVF, wherein at least 50% of the fibres by weight have a length of less than 250 μm; providing a polyol component; mixing the MMVF and polyol component in a ratio such that the amount of MMVF is at least 10% by weight based on total weight of polyol component; emulsifying pentane with the mixture of polyol component and MMVF; inducing foam formation by addition of a further component which comprises isocyanate.
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