Process for crosslinking hydrophilic colloids

Details Process for crosslinking hydrophilic colloids Process for crosslinking hydrophilic colloids

1974-04-10

1976-05-18

Smith, Ronald H.

Coating processes

With post-treatment of coating or coating material

Plural film forming coatings wherein one coating contains a...

96111, 961148, 427407, 427414, 427415, B05D 310

Patent

active

039580504

ABSTRACT:
The present invention relates a process for crosslinking hydrophilic colloids, especially gelatine. The colloid is crosslinked with a water-soluble organic crosslinking agent which is allowed to act in a system consisting of at least two colloid layers. At least one layer contains the crosslinking agent and at least one layer which is free from crosslinking agents contains an aprotic solvent.

REFERENCES:
patent: 2591542 (1952-04-01), Harriman
patent: 3687707 (1972-08-01), Graham
patent: 3792021 (1974-02-01), Tschopp et al.

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