Preparation and method for coating glass vessels
AssigneeTh. Goldschmidt AG
InventorsJoachim Giersberg, Hartmut Gomm, Dirk Naumann
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Abstract
Glass vessels are coated by spraying a solution containing 86 to 1,290 g/L of (HO).sub.x Sn(C.sub.2 O.sub.4).sub.y on the 500.degree. to 600.degree. C. hot outer surface of the vessels. The solution may contain oxalic acid, HCl and a portion of the (HO).sub.x Sn(C.sub.2 O.sub.4).sub.y compound may be substituted by a compound (OH).sub.2 SnCl.sub.2. The coatings are uniform.
Claims7
A preparation suitable for coating hot glass vessels to improve the exterior surface of the vessels, said preparation comprising a solution of the compound (HO).sub.x Sn(C.sub.2 O.sub.4).sub.y wherein x has a value of 0.2 to 3.8, y has a value of 1.9 to 0.1 and (2y+x)=4, in such an amount that the Sn content of the solution is 0.45 to 4.5 moles/L.
Dependencies are inferred from the claim text.