Method for post-injection in mold lamination with an adhesively coated functionalized film
US7662318B2 · kind B2 · utility
3Cited by
4References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2008 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | May 14, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2037/0042
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for laminating a functional film on to a plastic injection molded lens. An outer layer of the film is selected to perform an HMA-type function when subjected to the heat and pressure of the mold. After forming the lens, the mold is open and the film is loaded in to the empty insert. The residual heat and pressure bonds the film via the HMA to the lens, in a press lamination process. A functionally enhanced lens having a film intimately laminated on to one side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.