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:
Sep. 12, 1978
Filed:
Aug. 04, 1976
Robert Coleman Taylor, King of Prussia, PA (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
An improved gypsum dispersion frothing composition is presented comprised of a first component which is a neutralized sulfonic acid or neutralized sulfuric acid ester and a second component which is a neutralized dipropyl benzene sulfonate or a mixture of neutralized alkyl benzene sulfonates containing at least 50% neutralized dipropyl benzene sulfonate. The preferred member of the first component is neutralized alkyl benzene sulfonates having 10 to 14 alkyl carbon atoms, and the preferred second component is neutralized diisopropyl benzene sulfonate. The preferred neutralizing agents are sodium, ammonium ion, or triethanolamine. The frothing composition is preferably used at a concentration of 0.01 to 0.1 parts per 100 parts of gypsum.