Reference

4-Oxo-2-imidazolidinylidene ureas

Rasmussen, Chris R. (McNeil Laboratories, Inc., USA). U.S. US 3983135 28 Sep 1976, 8 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C07D233-32. NCL: 260309700. APPLICATION: US 73-408022 19 Oct 1973. DOCUMENT TYPE: Patent CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) Imidazolidinylideneureas I (Rn = 3-, 4-Cl, 2,6-, 3,4-Cl2, 3-, 4-MeO, 3-, 4-Me, 3,4-, 2,6-Me2, 3-, 4-CF3, H, 3-, 4-NO2, 3-Br, 4-CMe3, 3-Pr, 3,2,6-ClMe2, 4-NMe2, R1 = Me, R2 = R3 = R4 = H; Rn = 3-Cl, R1-R4 = H; Rn = 2,6-Me2 3-Cl, R1 = R2 = H, R3 = R4 = Ph; Rn = 3-Cl, 2,6-Me2, R1 = R2 = Me, R3 = R4 = H; Rn = 3-Cl, H, R1 = octyl, R2 = R3 = R4 = H; Rn = 3-Cl, H, R1 = Me, R2 = R4 = H, R3 = CH2Ph; Rn = 3-Cl, R1 = R3 = R4 = H, R2 = Me), useful as antisecretory agents at 2.5-40 mg/kg (rats) and central nervous system depressants at 5-25 mg/kg (rats, antianxiety test), were prepd. by treating 2-imino-4-imidazolidinones with Ph isocyanates RnC6H5-nNCO. Thus, 3-ClC6H4NCO was added to creatinine in DMF and the mixt. stirred 2 hr and heated on a steam bath 30 min to give I (Rn = 3-Cl, R1 = Me, R2 = R3 = R4 = H).Except for chemicals metioned above, 58030-73-2 and 39920-37-1 are also used. .

Thermal recording material with excellent water resistance and good head-matching property

Thermal recording material with excellent water resistance and good head-matching property. Orihara, Motoi; Kurisu, Tokuo (Ricoh Kk, Japan). Jpn. Kokai Tokkyo Koho JP 08300824 A2 19 Nov 1996 Heisei, 8 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: ICM: B41M005-26.Several reagents such as 95235-30-6 is used here. APPLICATION: JP 1995-134661 9 May 1995. DOCUMENT TYPE: Patent CA Section: 74 (Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes) Section cross-reference(s): 38 The material includes successively-laminated layers of a thermal-coloring layer contg.leuco dyes and developers and a protective layer comprising a water-sol. macromol. compd. contg. an isocyanate compd., which is solid at ordinary temp., on a support. .