Abstract: Homopolyimides and copolyimides which contain structural elements of the formula I ##STR1## in which R.sup.1 and R.sup.2 are halogen, nitro, aryl, aryloxy, alkyl or alkoxy, m is 0 or a number from 1 to 4, n is 0 or a number from 1 to 3 and p is 0, 1 or 2, the free carbonyl groups are bonded in the ortho-position relative to one another and R is a divalent aromatic radical which is substituted by at least one alkyl group or aralkyl group, are autophotocrosslinkable. They are suitable for the production of protective films and photographic relief images.

Abstract: Novel diamines of the formula ##STR1## are described, in which R.sub.1 is C.sub.1-12 -alkyl, R.sub.2 is H or C.sub.1-12 -alkyl, R.sub.3 is C.sub.1-12 -alkyl, cycloalkyl having 4-12 ring C atoms, C.sub.7-8 -aralkyl, substituted or unsubstituted aryl or, if R.sub.4 =H, is also --CH.dbd.CH--alkyl or --C(alkyl).dbd.CH-- alkyl each having 1-4 C atoms in the alkyl groups, and R.sub.4 is H, C.sub.1-12 -alkyl, cycloalkyl having 4-12 ring C atoms, C.sub.7-8 -aralkyl or substituted or unsubstituted aryl, or R.sub.1 and R.sub.2 and/or R.sub.3 and R.sub.4 together are C.sub.3-11 -alkylene. The diamines (I) are valuable intermediates and are suitable especially for the preparation of transparent crosslinkable polyamides.

Abstract: Coated material of a support, onto which is applied a radiation-sensitive coating of a homopolymer or copolymer with at least 5 mol %, based on the polymer, of structural units of the formula I ##STR1## in which R is a divalent aliphatic radical which can be interrupted by hetero-atoms or aromatic, heterocyclic or cycloaliphatic groups, a cycloaliphatic, heterocyclic or araliphatic radical, an aromatic radical in which two aryl nuclei are linked via an aliphatic group, or an aromatic radical which is substituted by at least one alkyl, cycloalkyl, alkoxy, alkoxyalkyl, alkylthio, alkylthioalkyl, hydroxyalkyl, hydroxyalkoxy, hydroxyalkylthio or aralkyl group or in which two adjacent C atoms of the aromatic radical are substituted by an alkylene group, R' independently has the same meaning as R and q is 0 or 1, and in which an aromatic radical R is not substituted by alkylene or by the abovementioned radicals if q is 0. The coating can be crosslinked directly by the effect of radiation.

Abstract: Polyimides of aromatic tetracarboxylic acid derivatives and aromatic diamines where both ortho-positions relative to a phenylene radical bonded to an imide group of the polymer are substituted by alkyl groups can be radiation-crosslinked with organic chromophoric polyazides. Solutions of said polyimides and polyazides in organic solvents can be used as radiation-sensitive coating compositions for, for example, preparing insulating and protective films and in particular for producing printed circuits and integrated circuits.

Abstract: Homopolyimides and copolyimides which contain structural elements of the formula I ##STR1## in which R.sup.1 and R.sup.2 are halogen, nitro, aryl, aryloxy, alkyl or alkoxy, m is 0 or a number from 1 to 4, n is 0 or a number from 1 to 3 and p is 0, 1 or 2, the free carbonyl groups are bonded in the ortho-position relative to one another and R is a divalent aromatic radical which is substituted by at least one alkyl group or aralkyl group, are autophotocross-linkable. They are suitable for the production of protective films and photographic relief images.

Abstract: Homopolyimides and copolyimides of aromatic tetracarboxylic acids and aromatic diamines which are substituted in the two ortho-positions relative to at least one N atom by alkyl, alkoxy, alkoxyalkyl, cycloalkyl or aralkyl, are soluble in organic solvents and have increased glass transition temperatures and hence very good heat stabilities. Such polyimides, which contain radicals of a benzophenonetetracarboxylic acid, are radiation-sensitive and autophotocrosslinkable. The polyimides are suitable for the production of films, protective coatings and photographic relief images.

Abstract: Polyamides formed from 80 to 100 mol %, relative to the polyamide, of at least one structural element of the formula I ##STR1## and 20 and 0 mol % of at least one structural element of the formulae II and/or IIa ##STR2## wherein R.sup.1 and R.sup.2 are lower alkyl, or together are alkylene, R.sup.3 is naphthylene or anthracenylene or the corresponding cycloaliphatic ring systems, R.sup.4 is alkylene, R.sup.5 is alkylene or an aromatic radical, and R.sup.6 is alkylene, cycloalkylene or a divalent araliphatic radical. The polyamides have melting points which render possible processing by thermoplastic shaping processes.

Abstract: 2- or 2,3-substituted 5,6,11,12-tetraseleneotetracene or -tetrathiotetracene of the formula ##STR1## in which X is S or Se, R is alkoxy, hydroxyalkoxy, aryloxy, cycloalkoxy, aralkoxy, --OH, --NH.sub.2, --Cl, --Br or substituted amino and Y is hydrogen or --COR. The compounds can be bonded as side groups to polymers. The polymers and the compounds combine with electron acceptors to form charge transfer complexes which can be used as electrically conductive layers.

Abstract: There are described novel substituted 1,11-diaminoundecanes, particularly those of the formula ##STR1## [R.sub.1 is alkyl having 1-12 C atoms, R.sub.2 is hydrogen or alkyl having 1-12 C atoms, R.sub.3 is alkyl having 1-12 C atoms, cycloalkyl having 4-12 C atoms, aralkyl having 7 or 8 C atoms, unsubstituted or substituted aryl, pyridyl, furyl or thienyl, R.sub.4 is hydrogen, alkyl having 1-12 C atoms, cycloalkyl having 4-12 C atoms, or unsubstituted or substituted aryl, or R.sub.1 and R.sub.2 and/or R.sub.3 and R.sub.4 together are alkylene having 3-11 C atoms], and processes for producing them. The compound of the formula I can be used for example for producing polycondensation products, particularly polyamides. They can be used also as curing agents for epoxide resins.

Abstract: There are described novel substituted 1,11-diaminoundecanes, particularly those of the formula ##STR1## [R.sub.1 is alkyl having 1-12 C atoms, R.sub.2 is hydrogen or alkyl having 1-12 C atoms, R.sub.3 is alkyl having 1-12 C atoms, cycloalkyl having 4-12 C atoms, aralkyl having 7 or 8 C atoms, unsubstituted or substituted aryl, pyridyl, furyl or thienyl, R.sub.4 is hydrogen, alkyl having 1-12 C atoms, cycloalkyl having 4-12 C atoms, or unsubstituted or substituted aryl, or R.sub.1 and R.sub.2 and/or R.sub.3 and R.sub.4 together are alkylene having 3-11 C atoms], and processes for producing them. The compound of the formula I can be used for example for producing polycondensation products, particularly polyamides. They can be used also as curing agents for epoxide resins.

Abstract: Novel 10-amino-deca-3,7-diene-nitriles of the formula ##STR1## are described, in which R.sub.1 is C.sub.1-12 -alkyl, R.sub.2 is H or C.sub.1-12 -alkyl, R.sub.3 is C.sub.1-12 -alkyl, cycloalkyl having 4-12 ring C atoms, C.sub.7-8 -aralkyl, substituted or unsubstituted aryl or, if R.sub.4 =H, --Ch.dbd.CH--alkyl or --C(alkyl).dbd.CH--alkyl each having 1-4 C atoms in the alkyl groups, and R.sub.4 =H, C.sub.1-12 -alkyl, cycloalkyl having 4-12 ring C atoms, C.sub.7-8 -aralkyl or substituted or unsubstituted aryl, or R.sub.1 and R.sub.2 and/or R.sub.3 and R.sub.4 together are C.sub.3-11 -alkylene. The compounds (I) can be reduced in a manner known per se to give the corresponding 1,11-diamino-undeca-3,7-dienes. The latter are valuable intermediates and are suitable especially for the preparation of transparent crosslinkable polyamides.

Abstract: Novel crosslinkable transparent polyamides are described which are obtained by the condensation of diamines of the formula ##STR1## with aromatic and/or aliphatic dicarboxylic acids or amide-forming derivatives thereof, preferably in the presence of an inorganic or organic phosphorus compound as an accelerator. In the formula, R.sub.1 to R.sub.4 are defined as in patent claim 1. The novel polyamides are suitable for the production of solvent-resistant coatings on various substrates, for the production of images under the action of light, in particular when mixed with polythiols and photoinitiators or photosensitizers, or for the production of transparent mouldings.

Abstract: There are described novel substituted 1,11-diaminoundecanes, particularly those of the formula ##STR1## [R.sub.1 is alkyl having 1-12 C atoms, R.sub.2 is hydrogen or alkyl having 1-12 C atoms, R.sub.3 is alkyl having 1-12 C atoms, cycloalkyl having 4-12 C atoms, aralkyl having 7 or 8 C atoms, unsubstituted or substituted aryl, pyridyl, furyl or thienyl, R.sub.4 is hydrogen, alkyl having 1-12 C atoms, cycloalkyl having 4-12 C atoms, or unsubstituted or substituted aryl, or R.sub.1 and R.sub.2 and/or R.sub.3 and R.sub.4 together are alkylene having 3-11 C atoms], and processes for prducing them. The compound of the formula I can be used for example for producing polycondensation products, particularly polyamides. They can be used also as curing agents for epoxide resins.

Abstract: A container for X-ray films is of the type wherein at least one side of the film is contacted by a stratum of fluorescent material. The fluorescent material is biased against the respective side or sides of the film by two layers which consist of ferromagnetic and/or magnetic material, flank the film and attract each other. Such layers can be applied to the inner or outer sides of sheet-like carriers consisting of synthetic plastic material. The aforedescribed film, stratum or strata, layers and carriers may but need not be inserted into the space between the rigid or flexible walls of an envelope. The envelope can be dispensed with if the carriers consist of opaque material. Since each of the two carriers can support the respective layer and the respective stratum of fluorescent material, the thickness of the entire package is minimal and the film can be placed into close proximity of one or more objects to be imaged so as to obtain sharp images of such object or objects.

Abstract: New transparent polyamides consisting of recurring structural elements of formula I ##STR1## wherein the carbonyl groups are linked to the benzene ring in 1,3- and/or 1,4-position are described. The novel polyamides are suitable for the manufacture of transparent shaped articles, and are distinguished by good thermoplastic processing characteristics, low water absorption, high stability to hydrolysis and good dimensional stability under the action of moisture.

Abstract: New transparent polyamides consisting of recurring structural elements of formula I or II ##STR1## in which the carbonyl groups are linked to the benzene ring in 1,3- and/or 1,4-position are described. The novel polyamides are suitable for the manufacture of transparent shaped articles, and are distinguished by good thermoplastic processing characteristics, low water absorption, high stability to hydrolysis and good dimensional stability under the action of moisture.

Abstract: Transparent copolyamides are obtained by reacting a mixture (A) of isophoronediamine and isophthalic acid, terephthalic acid or a mixture of isophthalic acid and terephthalic acid with a mixture (B) of a diamine ##STR1## and terephthalic acid or a mixture of terephthalic acid and isophthalic acid or with a mixture (C) of a diamine ##STR2## and terephthalic acid or isophthalic acid or mixtures thereof, R', R" and R.sub.1 to R.sub.6 being as defined in the patent claim.The reaction can also be carried out with an excess of diamine and with addition of H.sub.3 PO.sub.2 or salts thereof or white phosphorus.The novel copolyamides are distinguished by good thermoplastic processability, low water absorption and good resistance to hydrolysis, and are useful for the production of transparent mouldings.

Abstract: Novel substituted 11-amino-undeca-4,8-dienal and 11-amino-undecanal aldehyde-derivatives of the formulae Ia ##STR1## in which R.sub.1 to R.sub.6, Y and m are as defined in patent claim 1, and processes for their preparation are described. The compounds of the formulae Ia and Ib can be catalytically hydrogenated to novel 1,11-diaminoundecanes, which, in turn, can be used, for example, for the preparation of polycondensation products, in particular transparent polyamides, or as curing agents for epoxide resins.

Abstract: The data processing device for reading and processing visually observable information taking place on a data carrier includes a hand operated reading unit guidable in a first direction along a line of the text on the data carrier; scanning unit in the form of a column of photoelectric elements is arranged in the reading unit in a direction perpendicular to the direction of movement of the reading unit; and timing means provided in the reading unit for controlling the scanning rate of respective elements in response to the speed of movement of the reading unit.

Abstract: There are described transparent polyamides, and processes for producing them, which polyamides consist of recurring structural elements of the formula I ##STR1## or of recurring structural elements of the formula II ##STR2## [carbonyl groups in the structural elements (II) bound in the 1,3- and/or 1,4-position to the benzene nucleus, R.sub.1 =C.sub.1-12 -alkyl, R.sub.2 =H, C.sub.1-12 -alkyl, R.sub.3 =C.sub.1-12 -alkyl, C.sub.4-12 -cycloalkyl, C.sub.7-8 -aralkyl, unsubstituted or substituted aryl, R.sub.4 =H, C.sub.1-12 -alkyl, C.sub.4-12 -cycloalkyl, C.sub.7-8 -aralkyl, or unsubstituted or substituted aryl, or R.sub.3 /R.sub.4 together=C.sub.3-11 -alkylene, R.sub.5 /R.sub.6 independently of one another=hydrogen or methyl, and R.sub.7 /R.sub.8 together=C.sub.3-11 -alkylene].