Motion picture intermediate film with process surviving antistatic backing layer
US6248510A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2000 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Apr 10, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2001/7628
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A motion picture intermediate film has on one side of a support material, in order, an antihalation undercoat and at least one silver halide emulsion layer; and on the opposite side of the support a transparent, process surviving antistatic backing layer. The transparent, antistatic backing layer retains its antistatic properties after photographic film processing so that the motion picture intermediate film is protected from the generation of static charge during high speed printing of, for example, motion picture print films. The antistatic backing layer of the invention has a resistivity of less than about 1.times.10.sup.11 .OMEGA./.quadrature. after film processing. In a most preferred embodiment, the motion picture intermediate film of the invention is used to print images onto a motion picture print film that has a transparent antistatic backing layer. In accordance with the invention, use of a motion picture intermediate film as described above in making multiple prints onto motion picture print film results in surprisingly decreased levels of dirt and other image defects in the projected motion picture print film images, especially where such intermediate film is used to pr…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.