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:
Aug. 18, 1998
Filed:
May. 07, 1997
Applicant:
Inventors:
Kevin R Brundage, Corning, NY (US);
Devi Chalasani, Painted Post, NY (US);
Ronald E Johnson, Tioga, PA (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ; B29C / ;
U.S. Cl.
CPC ...
419 67 ; 419 41 ; 264109 ; 264148 ; 26417718 ; 2641 / ; 264195 ;
Abstract
An improvement in a method of extruding a plasticized powder mixture having a thermally gellable binder carried in an aqueous vehicle, by passing the mixture through an extruder and then through a die to produce an extrudate, the improvement being the additional step of contacting the extrudate directly after it leaves the die with an agent for simultaneously lowering the gel point of the binder and dehydrating the extrudate. The result is a stiffening of the extrudate in a shorter time than it would be, absent the additional step.