Manufacturing process for a construction strip with colorful protective coating shell
US6544454B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Nov 21, 2000 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | May 3, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C26/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A manufacturing process of a construction strip includes the steps of (a) evenly mixing a predetermined amount of paint, talcum powder and volatile agent to form a plaster form coating mixture; (b) gradually passing an elongated strip body through an extrusion passage of an extrusion mold, wherein a uniform surrounding clearance between an interior wall of said extrusion passage and said strip body; (c) continuously injecting said coating mixture into said extrusion passage of said extrusion mold in order to fill said surrounding clearance, so that a uniform protective coating is evenly coated on said longitudinal surfaces of said strip body while said strip body is extruded from said extrusion mold; and (d) drying said protective coating to form a hard and durable protective coating shell integrally wrapped around said strip body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.