Polymeric binders for enhancing green strength of pressed ceramics
US5487855A · kind A · utility
19Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1994 |
| Grant date | Jan 30, 1996 |
| Priority date | — |
| Expiry date | Sep 16, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/63444
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A composition suitable for use as a binder of ceramic materials and a method for preparing a ceramic material which provides relatively greater green ceramic strength is disclosed. The improved binder contains substantially hydrolyzed copolymer made from monomers having ester or amide functional groups, poly(vinyl amine), poly(vinyl formamide) or a copolymer of vinyl alcohol and vinyl amine. The binder is combined with an aqueous solution containing a ceramic powder to make a slurry, and the slurry is subsequently spray dried, pressed and heated to make a ceramic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.