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:
Jun. 10, 1986
Filed:
Nov. 04, 1983
Applicant:
Inventors:
Werner Interthal, Russelsheim, DE;
Franz-Josef Durst, Pfinztal-Berghausen, DE;
Raimund Haas, Achern, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166275 ; 523175 ; 524 43 ; 524389 ;
Abstract
High polymer solutions having an extremely increased drag, which are characterized in that they contain additionally one or several completely soluble or miscible compounds, that have a molecular weight of less than 500,000 and increase the viscosity of the high polymer solution to a value of 10.sup.5 Pa.s.