Aqueous hydrophilic colloid coating composition containing a com

Details Aqueous hydrophilic colloid coating composition containing a com Aqueous hydrophilic colloid coating composition containing a com

1978-09-14

1983-01-25

Lovering, Richard D.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

106135, 252354, 430518, 430529, 430539, 430642, G03C 176, G03C 138, C08K 8900

Patent

active

043704123

ABSTRACT:
A combination of two anionic surfactants, one of which is an alkyl sulfate surfactant, such as sodium dodecyl sulfate, and the other of which is an N-acyl sarcosinate surfactant, such as sodium lauroyl sarcosinate, is used as a coating aid in aqueous coating compositions comprising a hydrophilic colloid. The combination of surfactants provides a coating composition which combines the advantage of good wetting or spreading characteristics with the advantage of excellent ability to avoid repellency defects. Such coating compositions are especially useful in the coating of gelatin silver halide emulsion layers or other hydrophilic colloid layers in photographic materials.

REFERENCES:
patent: 2527260 (1950-10-01), Hart et al.
patent: 2534050 (1950-12-01), Murray
patent: 3222191 (1965-12-01), Steiner et al.
patent: 3241970 (1966-03-01), Popeck

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