Method for injection molding plastic parts
US6214266A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 6, 1999 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Apr 6, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31507
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for injection molding a plastic part having a coating which suppresses the appearance of colored interference fringes in fluorescent light including the steps of injection molding a plastic substrate; injection molding a light transmissive intermediate layer having an optical thickness of about 800-1,200 .mu.m onto a show surface of the plastic substrate; and forming a light transmissive outer coating having an optical thickness of about 5.5-11.5 .mu.m over the intermediate layer. The outer coating should be harder than the substrate such that the resulting part has a scratch resistance superior to that of the substrate alone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.