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. 05, 1980
Filed:
Sep. 09, 1977
Applicant:
Inventors:
Bruno Sander, Ludwigshafen, DE;
Kurt Scherling, Hemsbach, DE;
Rolf Steinberger, Schifferstadt, DE;
Eckhard Ropte, Ludwigshafen, DE;
Assignee:
BASF Aktiengesellschaft, , US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21F / ;
U.S. Cl.
CPC ...
1621 / ; 260 / ; 428400 ; 428401 ; 528350 ; 528351 ; 528352 ;
Abstract
Fibrids are prepared by introducing a solution of a polymer into a liquid precipitation medium while exposing it to shearing forces. A poly(amide-imide) resin solution is admixed with a solvent which is miscible with the resin solvent but which is a non-solvent for the resin itself.