Pressure molded cement products and methods for producing same

Claim 2

A PRSSURE MOLDED PRODUCT OF AN INORGANIC CEMENT COMPRISING A CURED INORGANIC CEMENT AS A CONTINUOUS PHASE, GLASS FIBERS DISPERSED THROUGHOUT THE CEMENT PHASE AS A REINFORCEMENT AND A COATING ON THE GLASS FIBER SURFACES IN THE FORM OF A WATER INSOLUBLE PRODUCT OF THE REACTION OF A SALT OF A POLYVALENT MEAL IN SOLUTION AND A WATER SOLUBLE COMPOUND OTHER THAN AN ALKALI METAL BASE CAPABLE OF RELEASING HYDROXY GROUPS FOR REACTION IN SITU ON THE GLASS FIBER SURFACES.

Claim 3

IN THE METHOD OF TREATING GLASS FIBERS FOR USE IN COMBINATION TO REINFORCE AN INORGANIC CEMENT PRODUCT WHEREIN THE GLASS FIBERS AR INCORPORATED INTO A CEMENT SLURRY AND THEN MOLDED WHILE THE INORGANIC CEMENT IS ADVANCED TO A CURED STAGE, THE IMPROVEMENT WHICH COMPRISES COATING THE GLASS FIBERS PRIOR TO COMBINATION WITH THE INORGANIC CEMENT BY WETTING THE SURFACES OF THE GLASS FIBERS WITH AN AQUEOUS SOLUTION OF A WATER SOLUBLE SALT OF A POLYVALENT METAL, INTRODUCING HYDROXY IONS FROM A BASE OTHER THAN AN ALKALI METAL BASE ONTO THE FIBERS WET WITH THE SOLUTION OF THE SALT OF THE POLYVALENT METAL FOR REACTION IN SITU ON THE GLASS FIBER SURFACES TO FORM A WATER INSOLUBLE REACTION PRODUCT WHICH PROTECTS THE FIBER AND INCREASES THE BONDING RELATION BETWEEN THE GLASS FIBER SURFACES AND INORGANIC CEMENT.

Claim 4

IN THE METHOD OF TREATING GLASS FIBERS FOR USE IN COMBINATION TO REINFORCE AN INORGANIC CEMENT PRODUCT WHEREIN THE GLASS FIBERS AR INCORPORATED INTO A CEMENT SLURRY AND THEN MOLDED WHILE THE INORGANIC CEMENT IS ADVANCED TO A CURED STAGE, THE IMPROVEMENT WHICH COMPRISES COATING THE GLASS FIBERS PRIOR TO COMBINATION WITH THE INORGANIC CEMENT BY WETTING THE SURFACES OF THE GLASS FIBERS WITH AN AQUEOUS SOLUTION OF A WATER SOLUBLE SALT OF A POLYVALENT METAL, INTRODUCING HYDROXY IONS FROM A BASE OTHER THAN AN ALKALI METAL BASE ONTO THE FIBERS WET WITH THE SOLUTION OF THE SALT OF THE POLYVALENT METAL FOR REACTION IN SITU ON THE GLASS FIBER SURFACES TO FORM A WATER INSOLUBLE REACTION PRODUCT WHICH PROTECTS THE FIBER AND INCREASES THE BONDING RELATION BETWEEN THE GLASS FIBER SURFACES AND INORGANIC CEMENT.