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:
May. 28, 1991
Filed:
Jun. 06, 1990
Applicant:
Inventors:
Adolf Kuehnle, Marl, DE;
Helmut Kehr, Schermbeck, DE;
Assignee:
Chemische Werke Huels Aktiengesellschaft, Marl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09F / ; C09F / ;
U.S. Cl.
CPC ...
2604106 ;
Abstract
Wax-like esterification products derived from optionally partially saponified hard paraffin oxidation products and mono- or multivalent alcohols, which are suitable particularly as lubricants for plastics processing, are formed in the melt with particularly high degrees of esterification and without discolorization. The conversion is conducted at 160.degree. to 220.degree. C. in the presence of zinc salts such as zinc stearate.