Stabilizatin of precipitated dispersions of hydrophobic couplers

Details Stabilizatin of precipitated dispersions of hydrophobic couplers Stabilizatin of precipitated dispersions of hydrophobic couplers

1990-06-01

1991-05-14

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430552, 430553, 430558, 252251, 106 22, 106493, G03C 726, G03C 732, G03C 734

Patent

active

050155644

ABSTRACT:
The invention provides stable dispersions of couplers and methods of their formation. The stable dispersions are formed by the use of a nonionic water soluble polymer in combination with an anionic surfactant having a sulfate or sulfonate head group and a hydrophobic group of 8 to 20 carbons. The preferred nonionic water soluble polymers are polyethyleneoxide and polyvinylpyrrolidene.

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