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. 05, 1987
Filed:
Jun. 04, 1985
Applicant:
Inventors:
Eduard Barthell, Deutschland, DE;
Anthony Capelle, Niederlande, DE;
Miroslav Chmelir, Deutschland, DE;
Kurt Dahmen, Deutschland, DE;
Assignee:
Chemische Fabrik Stockhausen GmbH, Krefeld, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C10L / ;
U.S. Cl.
CPC ...
585-3 ; 585-1 ; 585-2 ; 252 / ; 526271 ;
Abstract
The invention relates to copolymers of esters of acrylic acid or methacrylic acid with unbranched alcohols that contain at least 16 C atoms, and maleic anhydride, and also the use of these copolymers as crystallization inhibitors in paraffin-bearing crude oils.