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:
Jul. 23, 1996
Filed:
Sep. 12, 1994
Shy-Hsien Wu, Horseheads, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
A method for making a dried crack-free body involves forming a wet mixture of powder which can be ceramic, glass-ceramic, glass, molecular sieve, activated carbon, and combinations thereof, plasticizing organic binder which can be cellulose ethers, and/or their derivatives, and vehicle of water and at least one of the additional components of oleic acid, linoleic acid, linotenic acid, ricinoleic acid, or their derivatives, the vehicle content being at least about 35% by weight based on the powder content. The mixture is formed into a green body and dried. If the powder is conducting, the drying is done by a controlled humidity drying procedure which involves i) heating the green body at a temperature of about 35.degree. C. to 90.degree. C. at a relative humidity of about 90% to 95% for a time of about 1 to 7 hours, and thereafter ii) heating the green body at a temperature at about 88.degree. C. to 95.degree. C. at a relative humidity at about 90% to 95% for about 1 to 7 hours. If the powder is non-conducting the drying is done by either microwave or dielectric drying.