초록 ▼

An economical and versatile fibrous glass mat displaying improved resistance to wetting or strike-through by various curable materials when said materials are placed on one surface of said mat while in liquid state is disclosed. This mat, which is especially suited as a carrier, substrate or facer f

An economical and versatile fibrous glass mat displaying improved resistance to wetting or strike-through by various curable materials when said materials are placed on one surface of said mat while in liquid state is disclosed. This mat, which is especially suited as a carrier, substrate or facer for such curable substances, comprises a blend of fibers. This blend of fibers includes a majority of base fibers having a mean diameter in the range of ten (10) microns with a minor amount of microfibers. The binder formulation, which when cured holds the blend of fibers together to form a self-supporting mat, includes conventional binder resins with a minor amount of wet proofing resinous materials. Preferably, the resulting mat has a porosity of no greater than two-hundred and twenty-five (225) cubic feet per minute per square foot of mat in accordance with the Frazier Air Permeability Test. Also, claimed is a laminate comprising this novel mat and a vinyl plastisol coating or a coating of a foam insulation material such as a polyurethane or polyisocyanurate foam.

대표청구항 ▼

A porous, non-woven fabric mat for use as a facer, substrate, or carrier for receiving a curable substance while in the fluid state, said mat comprising a blend of dispersed, substantially randomly oriented fibers and a binder for holding said blend of fibers together; said blend of fibers comprisin

A porous, non-woven fabric mat for use as a facer, substrate, or carrier for receiving a curable substance while in the fluid state, said mat comprising a blend of dispersed, substantially randomly oriented fibers and a binder for holding said blend of fibers together; said blend of fibers comprising microfibers intermixed with base fibers said microfibers comprising between two percent (2%) and about forty percent (40%) of the total weight of said blend, said base fibers having a mean diameter of between about eight (8) microns and about twenty-five (25) microns; said binder comprising a water miscible combination of a heat settable binder resin and an effective amount of a wet proofing polymer resin compatible with said heat settable binder resin, said wet proofing polymer being selected from a group consisting of a water based silicone elastomer and a fluorchemical emulsion.