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:
Feb. 21, 1978
Filed:
Apr. 15, 1976
Stanley A Lipowski, Livingston, NJ (US);
Joseph W Dehn, Jr, Great Neck, NY (US);
Clinton E Retzsch, Morris Township, Morris County, NJ (US);
Diamond Shamrock Corporation, Cleveland, OH (US);
Abstract
Sulfonated resins useful as retanning and fatliquoring agents are obtained by sulfonation of a condensation product of (a) one mole of a hydroxy aromatic component, (b) from about 0.05 to 1.5 mole of an unsaturated oil and (c) about 0.4 to about 1.0 mole of a formaldehyde liberating composition. The hydroxy aromatic component may be phenol, a lower alkyl phenol having at least one reactive hydrogen in the 2-,4- or 6-position on the aromatic ring or a mixture thereof. The unsaturated oil may be castor oil or moellon. The formaldehyde liberating composition may be formaldehyde or a composition capable of producing formaldehyde.