Alumina-silica-sulfates, method of preparation and compositions

A rubber composition, comprising a rubber;

• and at least a bulking and reinforcing amount of an alumina-silica-sulfate containing a sulfate network of the formula
• xR:Al.sub.2 O.sub.3 :ySiO.sub.2 :zSO.sub.4 :pH.sub.2 O
• wherein
• R is selected from the group consisting of alkali and alkaline earth metal oxides, transition metals capable of forming sulfate salts and mixtures thereof;
• x is about 0.001 to 0.5;
• y is about 0.01 to 3.00;
• z is about 0.01 to 3.00;
• and
• p is about 0 to 100.00.

A plastics composition comprising a plastic;

• and at least a bulking or reinforcing amount of an alumina-silica-sulfate containing a sulfate network of the formula
• xR:Al.sub.2 O.sub.3 :ySiO.sub.2 :zSO.sub.4.pH.sub.2 O
• wherein
• R is selected from the group consisting of alkali and alkaline earth metal oxides, transition metals capable of forming sulfate salts and mixtures thereof;
• x is about 0.001 to 0.5;
• y is about 0.01 to 3.00;
• z is about 0.01 to 3.00;
• and
• p is about 0 to 100.00.

A paint composition, comprising a paint;

• and at least a bulking, reinforcing, opacifying a flatting amount of an alumina-silica-sulphate containing a sulfate network of the formula
• xR:Al.sub.2 O.sub.3 :ySiO.sub.2 :zSO.sub.4.pH.sub.2 O
• wherein
• R is selected from the group consisting of alkali and alkaline earth metal oxides, transition metals capable of forming sulfate salts and mixtures thereof;
• x is about 0.001 to 0.5;
• y is about 0.01 to 3.00;
• z is about 0.01 to 3.00;
• and
• p is about 0 to 100.00.

A newsprint or paper composition, containing at least a filling, bulking or reinforcing amount of an alumina-silica-sulphate containing a sulfate network of the formula

• xR:Al.sub.2 O.sub.3 :ySiO.sub.2 :zSO.sub.4.pH.sub.2 O
• wherein
• R is selected from the group consisting of alkali and alkaline earth metal oxides, transition metals capable of forming sulfate salts and mixtures thereof;
• x is about 0.001 to 0.5;
• y is about 0.01 to 3.00;
• z is about 0.01 to 3.00;
• and
• p is about 0 to 100.00.