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:
Dec. 25, 1979
Filed:
Jan. 17, 1977
Applicant:
Inventors:
Assignee:
NGK Spark Plug Co., Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
264 63 ; 264184 ; 264209 ;
Abstract
A method of making a ceramic shaped article from an inorganic raw material powder by extrusion molding is disclosed. The method comprises the steps of kneading an inorganic raw material powder with a plasticizer to obtain a kneaded body which is then molded by extrusion into a fluid having a high humidity to obtain a ceramic shaped article having no deformation and strain. The plasticizer is selected from the group consisting of mono-liquid type resin which is a water insoluble synthetic resin dissolved in a water soluble solvent and a hydraulic setting resin mainly consisting of polyurethane isocyanate prepolymer.