Method for manufacturing simulated architectural forms
US6599452B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 17, 2002 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Jun 17, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C44/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method is provided for manufacturing molded simulated stone and wood architectural articles for buildings and homes. The method incorporates a unique mold assembly including a resilient silicone rubber mold supported within a rigid mold cradle/foundation, and a vented lid having a High-Density Polyethylene (HDPE) interior surface. The silicone rubber mold is initially treated with a liquid polyester gel coating that is cured and then coated with an acrylic/vinyl ester back coating. Once the back coating is cured, a predetermined volume of a modified high-density, natural mineral fiber-reinforced, 2-component hybrid polyurethane liquid expanding composition is dispensed therein and the mold is covered with the vented lid. The system is pressurized and heated to produce a molecularly-fused, lightweight rigid article having the desired architectural shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.