Foam boards including non-halogenated fire retardants

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United States of America Patent

PATENT NO 9815256
SERIAL NO

14299605

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Importance

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Abstract

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According to one embodiment, a polyisocyanurate foam board is described. The foam board includes a polyisocyanurate core that is produced from: an isocyanate, a polyol, and a phosphorous containing non-halogenated fire retardant. The foam board also includes a facer material that is applied to at least one surface of the polyisocyanurate core. The polyisocyanurate core has an isocyanate index greater than about 200 and is able to forms a sufficiently stable char when exposed to flame conditions to enable the polyisocyanurate core to pass the ASTM E-84 test. The foam board has an initial R-value of at least 6.40 and exhibits an ASTM E1354-11b test performance that is equivalent with or better than a similar foam board having a halogenated fire retardant, such as tris(2-chloroisopropyl)phosphate (TCPP).

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Patent Owner(s)

Patent OwnerAddress
JOHNS MANVILLE717 SEVENTEENTH STREET DENVER CO 80202

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Asrar, Jawed Englewood, US 290 2824
Nandi, Malay Littleton, US 29 147
Wang, Lance Parker, US 47 247

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