The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 1977
Filed:
Apr. 12, 1976
Lonza Ltd., Gampel, Valais, CH;
Abstract
A tablet-form preparation for the prevention of lime deposits in water systems. The table-form preparation contains (a) citric acid and at least one member selected from the group consisting of acetylsalicylic acid, boric acid and nicotinic acid, or (b) nicotinic acid. The tablet-form preparation contains 0.05 to 1 percent by weight of a formaldehyde resin condensation product when the preparation is citric acid and at least one member selected from the group consisting of acetylsalicylic acid and boric acid. A process of using the tablet-form preparation in a water system to prevent the formation of lime deposits in such water system, e.g., a humidifier. A process of tableting a preparation which comprises (a) citric acid and at least one member selected from the group consisting of acetylsalicylic acid, boric acid and nicotinic acid, or (b) nicotinic acid.