Method for bonding of anchoring bolts in boreholes, in which an anchoring bolt is pushed with a rotary motion into a twin-chamber cartridge, one compartment of which is filled with a polyisocyanate component and the other one with a hydroxyl component, prepolymer from the conversion of polyisocyanates with one or several difunctional polyols of the molecular weight range 800-5000, preferably 1600-...

Wood and wooden materials are treated with aqueous treatment media. These media contain a water-soluble or water-dispersible, oxidatively drying, organic binder. The latter is a low-molecular weight, optionally modified 1,3-butadiene polymer which carries quaternary ammonium groups. This polymer is obtained by reacting an epoxy-group-containing polymer with a secondary and/or primary aliphatic ami...

Wood and wooden materials are treated with aqueous treatment media. These media contain a water-soluble or water-dispersible, oxidatively drying, organic binder. The latter is a low-molecular weight, optionally modified 1,3-butadiene polymer which carries quaternary ammonium groups. This polymer is obtained by reacting an epoxy-group-containing polymer with a secondary and/or primary aliphatic ami...

Wood and wooden materials are treated with aqueous treatment media. These media contain a water-soluble or water-dispersible, oxidatively drying, organic binder. The latter is a low-molecular weight, optionally modified 1,3-butadiene polymer which carries quaternary ammonium groups. This polymer is obtained by reacting an epoxy-group-containing polymer with a secondary and/or primary aliphatic ami...

Method for manufacturing a bone prosthesis made of porous alumina. Calibrated alumina grains are subjected to firing at a temperature lower than their sintering temperature; they are disintegrated, then compressed into a pressed mass, then the latter is subjected to sintering.

1402728 Labels MONARCH MARKING SYSTEMS Inc 7 June 1972 [23 June 1971 8 Dec 1971] 1647/75 Divided out of 1402722 Heading B8F A composite label strip comprises a supporting web 32c on which labels 36c are carried, cuts 100S being formed in the edges of the supporting web so that teeth of a toothed driver (47c, Fig. 4, not shown) can deflect the web material in the region of the cuts to engage the ed...

A checking circuit for the decoder of an error correcting code and a method of the designing thereof is disclosed. The method involves an algorithm that checks the syndrome generator network logic of the decoder. The syndrome checker includes a parity predict network and a parity check network in which the parity predict network is a parity tree whose terms in combination with the terms that defin...

A universal remotely controlled test interface test unit is adapted to be connected through plug connections to an on-site computing system having one or more central processing units and associated peripheral equipment. The test interface unit is provided with a limited function keyboard control for initiating tests and a transceiver for communicating with a data processing unit at a remote locat...

For coating a concrete surface with a plastic/concrete layer which adheres to the concrete surface, a mix containing water and fire-dried quartz sand is prepared from defined components by stirring in an upstream vessel. The plastic/concrete layer seals the concrete surface from penetrating fluids. The most important components of the plastic/concrete layer are, in the case of one-component binder...

In a testing apparatus and method for the tire pressure of automotive vehicle wheels, individual testing units for each wheel are arranged outside of the wheels at their suspension members. Only a single wheel is provided with an additional calibrating means for an exact tire pressure determination, in order to provide a calibrating standard for the relative measurement of the tire pressures of th...

The invention relates to the use of alpha -hemihydrate gypsum ( alpha -CaSO4 . 1/2H2O) arising in phosphoric acid manufacture, where this use should be possible without a preceding treatment of the alpha -hemihydrate gypsum for eliminating impurities present therein, and/or making these harmless. As such a use, the use of the alpha -hemihydrate gypsum as a mortar for making underground roadways ...

A data processing system includes three resources, i.e., a memory, a general purpose register file having a plurality of elements and a stack having a top. The system further includes a first mechanism for making the top of the stack correspond to at least one of the elements in the general purpose register and a second mechanism for controlling the operation of the stack. When the element to whic...

Disclosed are a glass-fiber-reinforced cement panel and a process for its manufacturing, according to which a cement slurry devoid of asbestos fiber consisting of 0.5-3.0% by weight of glass fiber or glass fiber and polyvinyl alcohol fiber in combination, and pulp in an amount 2-2.5 times the total amount of glass fiber and polyvinyl alcohol fiber, balance cement, is prepared; then, the cement slu...

A material has at least its surface layer formed of the product obtained by acylation of a mixture of two or more chitin derivatives selected from compounds represented by the formula (1):  (1) wherein R represents a carboxyalkyl group of from two to four carbon atoms, a hydroxyethyl group, a hydroxypropyl group, a dihydroxypropyl group or an alkyl group of from one to three carbon atoms, x is a n...

1-N-Isoseryl- or 1-N-(L-4-amino-2-hydroxybutyryl)-3',4'-dideoxykanamycin B is prepared through a new route starting from 3',4'-dideoxy-3',4'-didehydrokanamycin B, which comprises the steps of protecting all or some of the four amino groups other than the 1-amino group of the starting material with an amino-protecting group, reacting the partially amino-protected derivative or derivatives thus form...

In a memory device which has a plurality of recirculating type storage loops and in which information of the same addresses of the respective storage loops can be read and written in parallel, a memory device wherein information representing whether or not the corresponding storage loop is a bad or defective loop is written in a specified address of each of the storage loops.

A stabilized hydrocarbon fraction comprising toluene, xylene, sulfur and olefinic hydrocarbons is converted to benzene by (a) catalytic hydrodesulfuration, (b) hydrodealkylation and (c) catalytic hydrogenation.

The invention relates to novel sugar esters and glycosides especially derivatives of D-glucopyranoside and D-glucopyranaronate suitable for the treatment of neoplasms, acne, psoriasis and dermatoses.

The present invention provides for a soft, polypropylene spun-bonded fabric comprising continuous, i.e. endlessly spun, partially drawn polypropylene filaments which have a maximum tensile elongation of at least 200%.

An automatic cleaning device is employed in an extracting furnace of an apparatus for analyzing gases in metals, the furnace including upper and lower electrodes relatively movable between a closed position, whereat a crucible containing a sample to be analyzed may be contacted and heated by the electrodes, and an open position, whereat the electrodes are spaced from each other. The automatic clea...