Patent · US Expired

Water-resistant support material for light-sensitive materials

US4935298A · kind A · utility

8Cited by

2References

10Claims

0Family size

Assignee

Felix Schoeller GmbH & Co. KG · DE

Inventors

Ralf-Burkhard Dethlefs · Osnabrück, DE
Bernd Scholz · Osnabrück, DE
Wolfram Wysk · Belm, DE

Key dates

Filing date	Apr 25, 1988
Grant date	Jun 19, 1990
Priority date	—
Expiry date	Apr 25, 2008

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31913
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A water-resistant support material for light-sensitive materials is disclosed, which is coated on one side or two sides with a polyolefin resin. At least the polyolefin resin of the front-side coating is a copolymer of ethylene and a non-ethylene .alpha.-olefin. This copolymer allows to add to the coating mass a high content in light-reflecting white pigment.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.