Waterproof photographic paper support

Details Waterproof photographic paper support Waterproof photographic paper support

1987-02-27

1989-02-28

Chin, Peter

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With formation of web or article

162158, 1621643, 1621646, 1621683, 162179, 1621812, 1621813, 1621815, D21H 110, D21H 302

Patent

active

048082678

ABSTRACT:
A waterproof photographic paper support, which is coated with a polyolefin resin, is provided. The paper itself is formed from a particular paper pulp composition which contains fatty acids and/or fatty acid salts and an aluminum salt, as well as, if necessary, alkylketenedimer. Such paper pulp concentration contains, furthermore, anionic and cationic polyacrylamides in the ratio of 40:60 to 60:40, as well as an epoxidized fatty acid amide. The acrylic acid content of the anionic polyacrylamide amounts to between about 5% and 20%.

REFERENCES:
patent: 4405408 (1983-09-01), Yoshioka et al.
patent: 4419433 (1983-12-01), Kubbota et al.
patent: 4517285 (1985-05-01), Woodward et al.
patent: 4665014 (1987-05-01), Katsura

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