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Assignee: Akademie der Wissenschaften der DDR


Location: Berlin, DD
No. of patents: 29

NumberTitleIssue Date
5470725Thermostable (1,3-1,4)-ଲ-glucanase
Novel hybrid thermostable (1,3-1,4)-ଲ-glucanases, their use in food manufacturing and feed manufacturing, DNA fragments encoding such glucanases, organisms expressing the DNA fragments and a method for producing the thermostable (1,3-1,4)-ଲ-gl...
11/28/1995
5091494Copolyester amides, and method for making
The invention relates to new aromatic/aliphatic and/or alicyclic copolyester amides with high molecular weights, without crosslinking. A subsequent solid phase condensation is avoided or is greatly limited in time. The occurrence of thermal decomposition ...
02/25/1992
5055126Composition for increasing the yield of soybeans
With the aim of increasing the yield of soybeans, compositions are disclosed which decrease the high rate of absicission of flowers and young fruit. The composition contains gibberellic acid (GA3) and salicylic acid (SA) in suitable formulation...
10/08/1991
5034276Sizing for glass fibers
The invention relates to a sizing for the treatment of glass fibers, which are incorporated into thermoplastic materials as reinforcement. The sizing contains a Schiff's base, preferably in concentrations of 0.05 to 2% by weight, based on the dry matter. ...
07/23/1991
4987075Method of making an enzyme membrane for enzyme electrodes
The inventive membrane of high selectivity comprises a laminated enzyme membrane, which is enclosed by two cellulose membranes. The laminated enzyme membrane is an enzyme-containing polyurethane layer; the cellulose membranes are coated with cellulose nit...
01/22/1991
4983042Method and system for measuring the microstructure of surfaces
The invention relates to a method and a system for measuring the microstructure of technical surfaces on the principle of the interference microscope. In accordance with the invention, the virtual planes of reflection present in the object beam space and ...
01/08/1991
4963662Fluorinated nucleosides and method for treating retrovirus infections therewith
A method for treating AIDS, which comprises administering to a patient in need therefor a pharmaceutical composition comprising a therapeutically effective amount of a compound having the formula ##STR1## wherein R1 is an adenine, cytosine...
10/16/1990
4940325Device for the investigation of highly resolved partial spectra of an echelle spectrum
The invention refers to a device for investigating highly resolved partial spectra of an echelle spectrum, being applicable to the simultaneous determination of the intensities of different spectral elements of a radiation spectrum produced by an echelle ...
07/10/1990
4936988Diagonal flow filter module
The invention relates to a diagonal flow filter module, particularly for ultra- and microfiltration. The diagonal flow filter module consists of a cuboid stack element (5) with alternating flow channels (9) for crude solution or retentate and filtrate cha...
06/26/1990
4882127Device for solid phase sequencing of nucleic acid fragments
A device for solid phase sequencing of nucleic acid segments comprises a plurality of sequencing blocks for storaging and processing n nucleic acid fragments immobilized on carrier segments or in homogenous phase during a sequencing process, each of a sam...
11/21/1989
4877885Novel 3-sulfinatomethyl-or 3-sulfonatomethyl-4-sulfomethyl pyrrolidinium betaines and their salts as well as process for making the same
Novel 3-sulfinatomethyl or 3-sulfonatomethyl-4-sulfomethyl-pyrrolidinium betaines are disclosed which have the formula ##STR1## These novel compounds are obtained by reacting diallyl-triallyl ammonium salts or their methallyl derivatives with hydroge...
10/31/1989
4849077Process for solid phase-sequencing of nucleic acid fragments
A process for solid phase sequencing of nucleic acid fragments is disclosed. The object of the invention is to provide a sequencing process which enables the simultaneous sequencing of large amounts of long and short nucleic acid fragments and which is op...
07/18/1989
4728562Dielectric composition
The invention relates to a dielectric composition which, in particular, is useable in the thick layer technology for making printed condensers by means of the screen printing process. The composition contains as a dielectric active substance Bi2
03/01/1988
4716103Chemically active triazine support composition
A support composition based on triazine derivatives is prepared having high binding capacity. The support composition contains a polymer compound having no triazine groups, a polymer compound with 4,6-dihalogen-1,3,5-triazine groups, a 2,4,6-trihalogen-1,...
12/29/1987
4714768N-(chlorocarbonyloxy)-5-norbornene-2,3-dicarboximide, process for its production and its use
A new compound is disclosed, N-(chlorocarbonyloxy-5-norbornene-2,3-dicarboximide I, in addition to processes for its production and employment of the compound as starting product for the manufacture of non-symmetrical carbonate, urethane-protected am...
12/22/1987
4687602Novel 2-substituted 3-sulfopropyl-ammonium betaines and processes for making same
Novel 2-substituted 3-sulfo propyl-ammonium betaines are disclosed which have the formula ##STR1## and which are obtained in accordance with the invention by reacting allyl-or methallyl ammonium salt with hydrogen sulfite in the pH-value- of 2,0...
08/18/1987
4570236Multi-dimensional parallel storage device
Disclosed is a multi-dimensional parallel storing device, particularly for use in digital storing of picture elements scanned according to a scanning pattern. The device includes a plurality of multi-dimensional storage elements each being provided with a...
02/11/1986
4463253Time dispersion sensor tube
A time dispersed sensor tube has a photocathode for receiving light images and converting them to photoelectrons. An anode adjacent the photocathode has a slit-diaphragm for accelerating photoelectrons and passing them to slit-jaws by way of a shutter ele...
07/31/1984
4410709Sulfobetaines
The invention relates to new sulfobetaines and a process for the manufacture of cyclic sulfobetaines of a substituted 4-sulfomethyl-pyrrolidinium betaine type. Diallylammonium combinations are converted with salts of sulfurous acid, under good mixing and ...
10/18/1983
4381980Process for the manufacture of sulfobetaines
The invention relates to a process for the manufacture of N-substituted 3-sulfopropylammonium betaines. N-substituted allylammonium compounds are reacted in the presence of initiators, such as oxygen, and catalytic acting transition metallic ions of the f...
05/03/1983
4381534Process and arrangement for the polarization of shaped objects made from polymers
The invention relates to a method and an arrangement which are of importance in the polarization of shaped articles from polymers. The shaped articles from polymers, polarized by the method as per invention, are finding effective application in electroaco...
04/26/1983
4370244Process for cold mechanical working of metallic materials
An improved process for cold mechanical working of metallic materials is disclosed, in which a lubricant containing salts of carboxylic acids with more than ten, and preferably 15 to 20, carbon atoms. The lubricant also contains at least one organic solve...
01/25/1983
4349481Tritiated gibberellin aldehydes
Is the objective of the invention to develop a process for the production of tagged gibberellin-(7)-aldehydes which is of general applicability. As per the invention a gibberellin-(7)-aldehyde is converted into the gibberellin-(7)-aldehyde tagged at the C...
09/14/1982
4299337Pulsed syringe for use with electron-spin-resonance spectrometers and the like
A pulsed-flow apparatus for spectrometers and the like has a mixing chamber and two syringes each adapted to contain a different liquid and both connected to the mixing chamber. The plunger of each syringe has an outwardly extending rod provided with a to...
11/10/1981
4282154Tagged gibberellins
As per invention, [6--3 H] or [6--2 H] gibberellins respectively are produced. By the process as per invention, production of tagged gibberellins is made from natural gibberellins or gibberellin derivatives having a carboxyl group at...
08/04/1981
4280096Spectrometer for measuring spatial distributions of paramagnetic centers in solid bodies
A spectrometer is disclosed in which gradient coils are provided in order to create an inhomogeneous magnetic field for use in analyzing individual regions within the sample under examination. The gradient coils and the modulating coils are operated by di...
07/21/1981
4225404Perfluoroolefin and perfluoroparaffin mixture and process for making same
Straight chain perfluoroolefins compounds of medium length with terminal or double bonds and a minor proportion of trifluoromethyl side chains or mixtures of such perfluoroolefins with perfluoro paraffins of equal chain length and corresponding structure,...
09/30/1980
4154115Method and device for continuous measuring of gas pressures
A method and a device for the continuous measurement of gas pressures are provided. The gas pressure to be measured is modulated in a small partial volume and the pressure fluctuations thus produced are converted into electrical signals which are proporti...
05/15/1979
3962465Method of producing starch hydrolysis products for use as a food additives
Food additive, having utility for example as a thickener is prepared by mixing an optimum concentration of a starch-hydrolyzing enzyme and a starch or pre-treated starch in water in a concentration of the starch of 15-50% by weight at a pH optimum for the...
06/08/1976
 
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