Warner-lambert Company

Other

Warner-lambert Canada Inc.

Arthur P Wright

Betty P Wen

Antonina Maron

Terry G Schenck

Suhas H Ambike

Eric Blaser

Tai-Wing Ng

Betty Pui Lan Wen

Continuous production of aluminum hydroxycarbonate gel by continuous reaction of aluminum salt solution with mixed alkaline carbonate and bicarbonate solution under homogeneous conditions in a relatively small reaction vessel, and continuing the reaction in a subsequent reaction vessel under controlled pH. The product gel is separated from the non-aluminum cation containing reaction mixture within less than about 6 hours, whereby formation of poorly soluble addition reaction products such as dihydroxy aluminium sodium carbonate, which contribute undesired non-aluminum cations to the gel product, is reduced. The aluminum salt solution is adjusted in pH by adding to it a portion of the mixed carbonate and bicarbonate solution to obtain a clear solution of pH 3.5 to 4.0. This results in a smooth, creamy gel with less objectionable chalky mouth feel.

Aluminum hydroxycarbonate gel

Essentially pure acid hydroxyl ligand aluminum complexes useful as antacids are prepared by first reacting an acid hydroxyl ligand with an aluminum alkoxide under anhydrous conditions to form an intermediate and further reacting the intermediate with water, these complexes are useful as antacids and as such in the treatment of hyperacidity.

Essentially pure acid hydroxyl ligand aluminum complexes and their

Essentially pure acidic amine ligand aluminum complexes useful as antacids are prepared by first reacting an acidic amine ligand with an aluminum alkoxide under anhydrous conditions to form an intermediate and further reacting the intermediate with water, these complexes are useful as antacids and as such in the treatment of hyperacidity.

Essentially pure acidic amine ligand aluminum complexes and their

Essentially pure polyalcohol aluminum complexes useful as antacids are prepared by first reacting a polyalcohol with an aluminum alkoxide under anhydrous conditions to form an intermediate and further reacting the intermediate with water.

Essentially pure polyalcohol aluminum complexes and their preparation

Aluminum hydroxycarbonate gel is precipitated under highly homogeneous conditions by continuously introducing an aluminum salt solution and an alkaline-reacting carbonate and bicarbonate solution into a vigorously agitated reactor vessel and continuously withdrawing the reaction mixture.

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Markham, Canada

Arthur P Wright