Method of making a foundry mold or core with an anaerobically cured adhesive
US3986546A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1974 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | Mar 20, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J4/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Solid particulate materials are bonded together to form a foundry mold or core by I. forming a mixture of the particles and an anaerobically-curing adhesive and moulding the mixture to the desired shape, and PA1 Ii. causing the adhesive to cure and bond the particles together by maintaining the shaped article in a substantially oxygen-free environment. The anaerobic adhesive may comprise, as monomer, an ester of an acrylic acid, with a hydroperoxide or peroxide as a polymerization catalyst, and the oxygen-free environment may be produced by displacing air with nitrogen or other inert gas or vapor. The method described is particularly suited for the production of foundry moulds and cores from sand or other particulate material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.