290 PATENT ABSTRACTS

lower alkyl radicals, R1, R3, R4 and R6, which can be the same or different, are hydrogen or halogen atoms, cyano or carboxy groups or lower alkyl, lower alkoxy, lower alkoxycar- bonyl, carboxy lower alkyl or lower alkoxycar- bonyl lower alkyl radicals or carboxamide groups which are optionally mono- or dis- ubstituted or radicals of the general formula - COO-(CH2CH20)n-R7, R7 being a hydrogen atom or a lower alkyl radical and n being a whole number of from 1 to4, and wherein R6can addi- tionally also be a sulphonyl or nitro group, Y is a nitrogen atom or an N right arrowO group and M and M', which can be the same or different, are hydrogen atoms or alkali metal, alkaline earth metal or ammonium ions. The present in- vention also provides processes for the prepara- tion of these compounds and diagnostic agents containing them for the detection of phosphatases.

4719098

E N T E R A L C O N T R A S T M E D I U M U S E F U L F O R N U C L E A R

M A G N E T I C R E S O N A N C E I M A G I N G A N D I T S

P R E P A R A T I O N

Hanns-Joachim Weinmann, Heinz Gries, Hein- rich Michel, Berlin, Federal Republic Of Ger- many assigned to Schering Aktiengesellschaft

An enteral contrast medium useful for proton nuclear spin tomography contains at least one physiologically compatible paramagnetic com- pound in combination with a physiologically compatible, osmotically active substance, as well as a physiologically compatible base/buffer or buffer mixture with a pH value of 3 to 8, and, op- tionally, also a viscosity-raising material, all dis- solved or suspended in water. It is excellently suitable for enhancing contrast in imaging, e.g., of the gastrointestinal tract by nuclear spin tomography.

4719099

C O M P O S I T I O N A N D P R O C E S S F O R T H E T R E A T M E N T OF

K E R A T I N M A T E R I A L S W I T H P O L Y M E R S

Jean-Francois Grollier, Claire Fiquet, Chantal Fourcadier, Claude Dubief, Daniele Cauwet, Paris, France assigned to L'OREAL

New compositions for the treatment of keratin material, in particular human hair, skin and nails are provided comprising a combination of a cationic polymer with an anionic polymer. Sur- prisingly the anionic polymer can be retained well on the hair, even after rinsing, when applied with the cationic polymer.

4719100

P R E P A R A T I O N F O R O R A L H Y G I E N E

Franz Frosch, Taunusstein, Federal Republic Of Germany assigned to Blendax-Werke R Schneider GmbH & Co

A composition for oral hygiene with improved efficacy against dental plaque, said composition containing zinc aspartate and/or copper aspar- tate, preferably in an amount of 0.05 to 5% by weight based on the total weight of the composi- tion.

4719101

D E O D O R A N T C O M P O S I T I O N T O P R O T E C T A G A I N S T T H E

D E V E L O P M E N T O F B O D Y O D O R

Keith Morrison

A deodorant composition comprises a cos- metically acceptable vehicle containing methyl salicylate and a solubility enhancing oil, pre- ferably peanut oil. The composition is externally applied to the skin, generally to the feet of the user, and provides protection against develop- ment of odor.

4719102

A C I D S T A B L E D I B E N Z Y L M O N O S O R B I T O L A C E T A L G E L S

Munawar H Randhawa, Thomas J Schamper assigned to American Cyanamid Company

A method for producing solid gel antiperspirant sticks at a lower processing temperature, said sticks containing an acidic antiperspirant metal active compound, dibenzyl monosorbitol acetal as the gelling agent and at least one alcohol, wherein a novel solvent is added which is an or- ganic compatible, small compound of not