Document L22bGwYyMpKXN4MkMgep5Xd7

* REC'D PATENT DEPT, R. E. Waxier Monsanto Company . Organic Chemicals Division AUG 1.71870 Disclosure No. DQ2-21-3333 Date PRELIMINAFCTTJTSCEOSURE OF INVENTION 3NOTE: U'-Z*> % ^ Complete this form as soon as one successful experiment illustrative of the invention has been performed. Then process one copy through your group leader and research manager for review, rating, and sub mission to the Patent Department. Copies will be distributed after disclosure number assignment and patent attorney allocation.. Include C.P. numbers for all new chemicals. 1. Statement of Invention: COLORLESS INKS FOR TRANSFER PAPER Certain 'saileylateX" and''~ester's" br"rdmatTc''2-hVdrb:>ycarbo:-:SrTic-''2cidg> are'i exceptionally .good solvents Lor* colorless inks; such as those ' " ^containing crystal violet lactone (CVL). Solutions containing CVL at 5^ (or saturation in some cases) were prepared from the following solvents and used to mark on or stain an acid resin coated paper. Intensity of blue color formation is given at various times;-the higher the number' the darker the color., 15 sec. 1 min. Benzyl salicylate Methyl salicylate n-Butyl salicylate Amyl salicylate ' "Loralkyl" salicylate ... .. . . ' 30 . 38 38 39 47 49 47 53 - ; ^5 . -49 By Contrast . 1 hr. 43 . 58 56 - Overnight .45 66 -- 70 - '- ' Benzyl n-butyrate* Dimethyl phthalate* . 15 16 -~17 65 0 0 0 37 2. Sources searched and prior art found: Chem Abstr 1907--1966 under ' ,,5,3-bis-(1i-*"dimethylaminophenyl)-6-dimethylaminophthalld.,f The .following solvents are mentioned in this type ink: chlorinated 'biphenyls, alkylated biphenyls, hydrogenated terphenyls, DOP, chlorinated paraffins, petroleum distillate. Certain volatile solvents (e.g. toluene) are mentioned in a related invention. Notebook page where example is to be found: 0R-71987-72000 OR-1507O1-150705 OR-150760-15076^ - - Inventor(s): OR-150711-15P757 ^OR-150769-150778 DSW 587479 5. Group Leader: 6. Suggested Rating:' AJL Qsi ,9L Group Leader 7. Final Rating: T/Tn 1 D Trp ` ,, *1 A- H ^ "1 .__ 4 /?-/,? Manager of Research' / ikvj f( i/W'7- STLCOPCB4092815