Abstract: Described is an aqueous sprayable glass fiber binding composition comprising: a) an aqueous compatible formaldehyde thermosetting coating composition; and b) a compatible aqueous latex elastomeric composition. Also described are binder compositions that decrease fallout of glass fiber and binder from the coated glass fiber. Also disclosed is a glass fiber binder composition having low odor content.

Abstract: A self-supporting headliner panel for lining the interior surface of an automotive roof comprises a front sheet, a back sheet and an intermediate corrugated sheet adhered to the front and back sheets. The front sheet and the back sheet each comprise wood fibers and polypropylene. To form the panel, a laminate of the front sheet, the back sheet and the intermediate corrugated sheet is molded in a heated mold which melts polypropylene fibers in the front and back sheet causing the laminate to conform to the shape of the mold and adhering the three sheets together.

Abstract: A process for making a fibrous mat includes the steps of (a) combining (i) glass fibers, (ii) polyolefine fibers, (iii) fibers selected from the group consisting of polyamide fibers, polyester fibers, and mixtures thereof, and (iv) a cross-linked latex binder, (b) consolidating the fibers and binder into a loosely packed mat, (c) curing the consolidated mat at a temperature in the range of about 250-400 F., and (d) molding the cured mat into a desired shape at ambient temperature.

Abstract: A thermoformable fibrous mat which has good strength and temperature resistance and which combines balanced properties of flexibility and rigidity. The novel, inventive mat comprises glass fibers; polyolefin fibers; polyamide and/or polyester fibers; and a cross-linked latex binder. Preferably, the latex binder is a combination of styrene-butadiene and carboxylated styrene-butadiene. A process for forming the inventive mat is also disclosed.

Abstract: 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.

Abstract: 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.

Abstract: A process is described for the preparation of perlite ore fines for expansion. The ore fines are treated with an agglomerating agent which has a viscous liquid phase at a temperature above ambient temperature but below the critical dehydration temperature of the perlite ore fines. Suitable agglomerating agents mentioned are the boron acids, particularly orthoboric acid and metaboric acid. The perlite ore fines and agglomerating agent are mixed, preferably by dry mixing, and then heated to the temperature of the viscous liquid phase and held at that temperature for a short period while the liquid coats at least a portion of the perlite ore fines and effects agglomeration. Thereafter, the agglomerated perlite ore fines can be expanded in a conventional perlite ore expander. The resulting expanded materials have properties essentially identical to standard expanded perlite ore and are useful for such purposes as insulating fillers and light weight aggregates.

Abstract: Polyester forming reactants of low volatility including an organic acid or anhydride such as trimellitic anhydride, and a polyhydric alcohol, such as dipentaerythritol or pentaterythritol, are admixed at a temperature above 400.degree. F. with partially stabilized polypropylene and asbestos filler to provide a heat stabilized, asbestos-filled polypropylene composition.