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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.:

US 4042324 B1

PDFFull Text
Date of Patent:
Aug. 16, 1977

Filed:

Feb. 03, 1976

Process for inhibiting the corrosions and deposition of boiler scale in

Applicant:
Inventors:

Theodor Auel, Erftstadt, DT;

Hannsjorg Ulrich, Erftstadt, DT;

Horst-Dieter Wasel-Nielen, Hurth-Hermulheim, DT;

Gero Heymer, Erftstadt, DT;

Assignee:

Hoechst Aktiengesellschaft, Frankfurt am Main, DT;

Attorney:

Connolly and Hutz

Primary Examiner:

Benjamin R Padgett

Assistant Examiner:

Irwin Gluck

Int. Cl.
CPC ...
C02B / ; C23F / ;
U.S. Cl.
CPC ...
21 / ; 21 / ; 210 58 ; 252 82 ; 252180 ; 2523 / ;
Abstract

Corrosion and deposition of boiler scale in water-conveying systems are inhibited. To this end the water is admixed with at least one carboxy-alkane compound of phosphorus of the general formula: ##STR1## in which each of the substituents R.sup.1, R.sup.2, R.sup.3, and R.sup.4 stands for hydrogen or an alkyl group having from 1 to 4 carbon atoms, R.sup.5 stands for hydrogen, an OH-group or an alkyl group having from 1 to 3 carbon atoms, and n stands for 0 or 1, or with at least one water-soluble salt thereof.

Find Patent Forward Citations

Auel, Theodor. (1977). Process for inhibiting the corrosions and deposition of boiler scale in (U.S. Patent No. 4042324). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4042324

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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