Magyar Tudomanyos Akademia Kozponti Kemiai Kutato Intezete

Nitrokemia Ipartelepek

Reanal Finomvegyszergyar

Labor Muszeripari Muvek

Nitrokaelepek

Mezogazdasagi Es Elelmiszeripari Szervezo Vallalat

Sandor Nemeth

Lajos T Nagy

Csaba Soptei

Laszlo Simandi

Elemer Tomordi

Gabor Besenyei

Jozsef Dukai

Erzsebet E Dioszegine

Maria Belak

Sandor Zoltan

Erno Tyihak

Emil Mincsovics

Maria Szabo

Gabor Kemeny

Tibor Szekely

Zsuzsanna Fater

Zsuzsanna Antal

Aniko Mathuny

Laszlo Kassay

The invention relates to a process for preparing arylsulphonyl isocyanates of the general formula (I) ##STR1## and addition derivatives thereof--where in the formula the meaning of the substituents are as follows:

Process for preparing arylsulphonyl-isocyanates and addition derivatives

The invention relates to a process for preparing sulphonyl-ureas of the general formula (I) ##STR1## wherein Ar.sub.1 represents a phenyl, naphthyl or thienyl group, the derivatives thereof substituted by C.sub.1-4 alkyl, C.sub.1-4 haloalkyl, (halo)alkoxycarbonyl, (halo)alkyloxy, nitro, cyano groups as well as by halogen atoms,

Process for preparing N-sulphonyl-ureas

The invention relates to a new polyacrylamide adhesive suitable for the fixing of fine-particle sorbent layers based on organic and/or inorganic compounds, used in overpressured one- and multilayer chromatographic procedures. The said adhesive is prepared by polymerizing the aqueous solutions of acrylamide and N,N'-methylene-bis-acrylamide in the presence of a catalyst pair at from 21.degree. to 30.degree. C., pulpifying the precipitate thus obtained and repeating the precipitation and the pulpification more times.

Polyacrylamide adhesive for fixing the sorbent layers of overpressured,

Apparatus for the prediction of performance parameters of a proposed machine, in particular, an agricultural machine, includes a keyboard for entry of data in accordance with a set of input parameters useful in the calculation of performance parameters, a display for displaying performance parameters, a memory for storage of data inputted by the keyboard, and a data processor interconnecting the memory and the numerical board for performing mathematical calculations to output values of the performance parameters in response to the inputting of data at the keyboard. Included within the data processor is an analyzer for selecting input parameters specific to a mathematical correlation, a microprocessor for calculating values of intermediary parameters from the inputted data based on patterns of such data, and a synthesizer employing values of selected input parameters and the intermediary parameters to provide mathematical correlation for attaining values of the performance parameters.

Apparatus for the determination of the technical parameters of machines

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Budapest, Hungary

Sandor Nemeth