Fiber mat bound with a formaldehyde free binder, asphalt coated mat and method
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United States of America Patent
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Issued Date -
May 11, 2006
app pub date -
Nov 8, 2004
filing date -
Nov 8, 2004
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Abandoned
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Abstract
Fibrous, nonwoven mats are disclosed that are bound with a formaldehyde-free, heat resistant resin in direct contact with the fibers. The heat resistant resin is capable of withstanding coating with a hot, molten material like asphalt or a mixture containing asphalt having a temperature of at least about 300 degrees F. and up to 450 degrees F. or higher. The preferred heat resistant resins are epoxies and urethanes, or mixtures thereof. The methods of making these mats with wet processes are also disclosed.
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