Glaze-like coatings used to make oven bake clays food and drink safe
US10053391B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 19, 2016 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Oct 21, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/349
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention is directed at coatings for oven bake clay that when applied make the surface of the resulting object food safe. Among the many different possibilities contemplated, the coating may contain one or more food safe plastics that may be in particle form and may form suspensions or colloids when mixed with water, food safe oil or other food safe liquids to ease application. Among the many potential additional ingredients contemplated, the coating may contain one or more surfactants to improve the formation of a suspension or colloid or one or more food safe dyes so that the oven bake clay can be painted. Among the many methods of making the coating contemplated, the components may be mixed to form a suspension or colloid through one or more of agitation, stirring or sonication. It is further contemplated that the coating may be applied to an unbaked oven bake clay object and then baked or alternatively applied to a baked oven bake clay object and then re-baked.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.