Patent ID: 7189277

Claim:
A corrosion resistant molding composition consisting essentially of: a) least one metal powder selected from the group consisting of the rusting alloys of iron; b) a gel forming polysaccharide binder; and c) a solution comprising; (i) at least one borate selected from the group consisting of boric acid (H 3 BO 3 ), and a borate salt of sodium or potassium, said borate being present at an equivalent H 3 BO 3 molar concentration in the range of from 0.035 to 0.3 moles/liter. (ii) at least one alkali metal hydroxide selected from the group consisting of sodium hydroxide (NaOH), and potassium hydroxide (KOH), wherein the equivalent H 3 BO 3 to alkali metal hydroxide molar ratio in the solution is in the range of from 0.5 to 2.0; (iii) a solvent for said gel forming binder, said borate salt and said alkali metal hydroxide, wherein the solvent concentration in said molding composition is from 5 to 20 wt. %.