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:
May. 22, 1979
Filed:
May. 11, 1977
Martin L Aronow, Westbury, NY (US);
Sterndent Corporation, Old Greenwich, CT (US);
Abstract
A method contemplated by the present invention for producing semi-finished prosthetic dental preforms essentially comprises the steps of repulverizing a dental porcelain mixture including a suitable binder by spray drying such dental porcelain molding the repulverized dental porcelain mixture in a die member having a cavity with a form generally complementary to that desired for the molded product, removing the molded product from the mold; and applying an outer coating of a suitable second dental porcelain to selected exterior surfaces of the molded product. The binder for the ceramic material comprises 10.5% to 8.5% ethylene vinyl acetate resin, 5.3% to 3.9% mineral seal oil and about 2.2% to 1.6% stearic acid.