Organic binder, granular material, three-dimensional lamination-shaped mold manufacturing apparatus, and three-dimensional lamination-shaped mold manufacturing method
US10174183B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2015 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Nov 11, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/0096
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In order to well perform recoating regardless of the type of granular material and reuse a refractory aggregate in an unprinted portion without any regeneration process in the manufacture of a three-dimensional lamination-shaped mold, this invention provides a granular material for use in shaping a three-dimensional laminated mold, which is coated with an acid as a catalyst which activates and cures an organic binder for binding the granular material. The acid contains at least one of sulfuric acid, phosphoric acid, a sulfonic acid and a carboxylic acid, and is one of a mixture of sulfuric acid and another acid, phosphoric acid only, a mixture of phosphoric acid and another acid, sulfonic acid only, a mixture of sulfonic acid and another acid and a mixture of a carboxylic acid and another acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.