Photographic element comprising antistatic layer

US5709985A · kind A · utility

Assignee

• Minnesota Mining and Manufacturing Company · US

Inventors

• Eric D. Morrison · West St. Paul, US
• Paola Puppo · Cogoleto, IT
• Alberto Valsecchi · Windom, US
• Elio Martino · Savona, IT
• William L. Kausch · Cottage Grove, US
• Renzo Torterolo · Savona, IT

Key dates

• Filing date: Nov 13, 1995
• Grant date: Jan 20, 1998
• Expiry date: Nov 13, 2015

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C1/89
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A photographic element comprising a polymeric film base, a silver halide emulsion layer, and an antistatic layer comprising a colloidal vanadium oxide and a vinyl addition polymer dispersion in a dry weight ratio of from 1:30 to 1:500. The antistatic layer may be present as a backing layer on the side of the base opposite the silver halide emulsion layer, as a subbing layer between the base and the emulsion layer in a single or double side coated photographic element, and/or as a subbing layer between the base and a different backing layer. No barrier layer is used over the antistatic layer.