Donald D. Buerkley - Woodbury MN Norman P. Sweeny - North Oaks MN Daniel N. Vivona - Lake Elmo MN
Assignee:
Minnesota Mining and Manufacturing Company - St. Paul MN
International Classification:
B32B 316
US Classification:
428307
Abstract:
Color-forming precursor compositions comprising a metal-complexing compound having a plurality of ligand groups and color-activating compositions comprising transition metal salts of oleophilic, organic acids are combined to form dark, permanent images on substrates. The methods and compositions are particularly useful for providing permanent fingerprints and other dermographs.
Name / Title
Company / Classification
Phones & Addresses
Daniel Vivona Mpartner
Dk Housing Llp
Daniel Vivona Owner
R & D Beta Co Chemical Research Development & Consulting