Water soluble sizing for glass fibers and glass fibers sized therewith
AssigneeOwens-Corning Fiberglas Corporation
InventorsKenneth P. Chase, William N. Stassen
Life of this patent
Estimating the term…
Abstract
Glass Fibers sized with water soluble polymeric compositions to maintain strand integrity during processing and to induce complete filamentization of the glass fibers from a bundle during blending and mixing of the glass fiber bundle with an aqueous medium.
Claims19
A product comprising an aqueous cementitious composition containing glass fibers having a size in contact with the surface of said fibers, said size consisting essentially of at least one water-soluble polymer and a solution rate modifier selected from the group consisting of sulfuric acid, nitric acid, hydrochloric acid, acetic acid, potassium hydroxide, tetramethylammonium hydroxide, sodium hydroxide and glycerol, said solution rate modifier being present in an amount sufficient to alter the rate of solution of said polymer in said aqueous cementitious composition.
A method for producing a cementitious composition which comprises:
- a. dispersing glass fiber bundles throughout an aqueous cementitious composition to form a mixture, the surface of the glass fibers being in contact with a size consisting essentially of at least one water-soluble polymer and a solution rate modifier selected from the group consisting of sulfuric acid, nitric acid, hydrochloric acid, acetic acid, potassium hydroxide, tetramethylammonium hydroxide, sodium hydroxide and glycerol;
- b. agitating said mixture to filamentize said glass fiber bundles and to disperse the glass fibers throughout said cementitious composition.
Dependencies are inferred from the claim text.