Fiber glass mat
AssigneeJohns Manville International, Inc.
InventorAlan Michael Jaffee
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Abstract
A fiber glass mat containing a novolac resin having an acid solubility of at least about 35 wt. percent is especially useful for bonding to a light weight fibrous or foam web or board, such as a polymer fiber web. A method of making the mat by wet laying a slurry containing the fiber and the novolac resin particles and then further adding an aqueous solution or slurry containing a crosslinking agent for the novolac resin and a laminate containing the fiber glass mat are disclosed.
Claims8
A wet-formed, nonwoven fiber mat comprising glass fibers bonded together at the locations where the fibers cross each other with up to about 60 weight percent, based on the dry weight of the mat, of novolac resin, said resin having an acetone solubility of at least 35 wt. percent, and at least about 3 weight percent hardening agent for said resin based on the weight of the mat, said hardening agent amounting to at least about 7 weight percent of the weight of the novolac resin, said novolac resin being substantially in melted form bonding the fibers together.
Dependencies are inferred from the claim text.