Transparent sheet-like shaped plastic part with concealed sprue mark, and process for producing it
US8173244B2 · kind B2 · utility
0Cited by
15References
17Claims
0Family size
Inventor
Key dates
| Filing date | Jan 13, 2005 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Feb 9, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24901
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A transparent sheet-like shaped plastic part, in particular a plastic pane, on account of the use of a direct injection-molding process during production of the shaped plastic part (1), has at least one sprue mark (4) located on an optical surface (1.2) of the shaped plastic part (1). The sprue mark (4) is covered by a covering material (2) of lower transparency than the shaped plastic part (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.