Dye permeable polymer interlayers
AssigneeMinnesota Mining and Manufacturing Company
InventorsGilbert L. Eian, Takuzo Ishida, Alan M. Miller
Life of this patent
Estimating the term…
Abstract
Blends of poly(caprolactone) and poly(vinyl chloride) have been found to have good dye permeability. They have been incorporated into photothermographic constructions as barrier interlayers and dye-receiving layers.
Claims25
An imageable article comprising:
- (a) an image-forming layer comprising a source of imaging dye;
- and (b) an image-receiving layer, wherein a polymeric interlayer is interposed between said image-forming layer and said image-receiving layer and wherein said polymeric interlayer comprises a blend of poly(vinyl chloride) and poly(caprolactone), said blend having a T.sub.g of at least about 10.degree. C.
A dry silver photothermographic element comprising a substrate having a dye-receiving layer coated thereon, said dye-receiving layer having coated thereon a plurality of imaging layers comprising a light-insensitive, reducible silver source;
- a light-sensitive silver halide;
- a polymeric binder;
- a sensitizer;
- and an imaging dye, the imaging layers being separated by polymeric interlayers at least one of which comprises a blend of poly(vinyl chloride) and poly(caprolactone), said blend having a T.sub.g of at least about 10.degree. C.
A dye-diffusive dry silver photothermographic element comprising a substrate on one side thereof coated with an image-receiving layer, said image-receiving layer having coated thereon at least one image-forming layer comprising a light-insensitive, reducible silver source;
- a light-sensitive silver halide;
- a polymeric binder;
- a sensitizer;
- and a source of imaging dye wherein said image-receiving layer comprises a blend of poly(vinyl chloride) and poly(caprolactone).
Dependencies are inferred from the claim text.