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. 25, 1987
Filed:
Apr. 04, 1986
Applicant:
Inventors:
Werner Groll, Karlstein, DE;
Josef Rothaut, Fort Lee, DE;
Angela Klaus, Hanau, DE;
Rudi Steinke, Hanau, DE;
Assignee:
Degussa Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
419 23 ; 291606 ; 75232 ; 75235 ; 106 35 ; 264 16 ; 264 17 ; 427-2 ; 419 19 ; 419 32 ; 419 36 ; 428552 ;
Abstract
A denture with a metallic microstructure and with low shrinkage and porosity is produced by metallurgical sintering by providing a multimodal size distribution of coarse and fine fractions of metal powder, optionally also with glass or ceramic powder, converting this powder mixture with water into a slip, modelling the denture with this, and sintering the slip at a temperature which exceeds the solidus temperature of at least one component of the powder mixture.