Abstract: Biuret-group-containing polyisocyanates based on non-aromatic diisocyanates, possibly mixed with liquid N-alkyl-lactams, as activators for activated anionic polymerization of lactams.

Abstract: Thermoplastically processable polyamide moulding compositions which are equipped with inorganic reinforcing materials and contain 3 to 40% by weight, relative to the amount of polyamide, of bisphenols of the formula (I) ##STR1## where R stands for CH.sub.3, CH.sub.3 O, C.sub.2 H.sub.5 group,m and n independently of each other denote whole numbers from 0 to 4 andX denotes a chemical bond, a C.sub.1 -C.sub.7 -alkylene or C.sub.5 -C.sub.6 -cycloalkylene radical, O, S, SO, SO.sub.2, CO or O--(CH.sub.2).sub.p --O-- with p=2 to 10and with the proviso that the sum of the aliphatic C atoms of all the radicals bonded to the phenol rings is <6.

Abstract: The present invention is directed to a process for the preparation of a segmented, aliphatic-aromatic polyether-copolycarbonate containing structural units conforming to ##STR1## wherein --D-- is a diphenolate radical and units conforming to ##STR2## wherein --O--Polyether--O-- is an aliphatic polyether-diolate radical, by the phase boundary process in which aliphatic polyether diol and a mixture of dihydroxy compounds are reacted with a carbonic acid halide which is employed in molar excess in relation to the dihydroxy compounds and in which the aqueous phase is kept at a pH value of at least 13 and where the polycondensation reaction is carried out in a reactor by addition of an amine catalyst.The invention is further directed to the polyether polycarbonate which is obtained by the process and to the preparation of membranes from said polyether copolycarbonate.

Abstract: The invention concerns fusible mixtures of high electroconductivity which consist of(a) 0.5 to 99% by weight, relative to the total weight of the mixture, of a TCNQ complex of the formula ##STR1## in which R and R.sub.1 independently of each other stand for an optionally substituted aliphatic, cycloaliphatic or araliphatic radical having 1 to 30 C atoms andn is 1, 2 or 3 or a fraction between these numbers and(b) 99.5 to 1% by weight, relative to the total weight of the mixture, of one or more special liquid organic compounds.

Abstract: The use of acyl phosphanoxides of the formula I ##STR1## in which each R, independently of the others, can denote linear or branched C.sub.1 -C.sub.12 -alkyl, cycloalkyl or optionally mono- or poly-C.sub.1 -C.sub.12 -alkyl-substituted, alkoxy-substituted or halo-substituted aryl or phenyl,for improvement of the mechanical properties in ABS moulding materials.

Abstract: The invention relates to the use of novel N,N-disubstituted arylamines containing polymerizable groups as hardening accelerators for polymerizable compositions based on unsaturated polyester resins, in particular for trowelling and water compositions.

Abstract: Improved activators for anionic polymerization of lactams are biuret-containing polyisocyanates based on non-aromatic diisocyanates.

Abstract: Compounds of the formula ##STR1## are suitable as curing accelerators which can be incorporated into ethylenically unsaturated, cold-curable resins.

Abstract: In a therapeutic system such as a plaster for administration of an active compound through the skin and comprising a covering layer which is essentially impermeable to the active compound, an active compound reservoir layer and a protective layer which can be pulled off and which is essentially impermeable to the active compound, the improvement wherein the reservoir layer contain about 1-30% of active compound in an elastomer mixture comprising a predominantly amorphous olefinic (co)polymer with a glass transition temperature of <20.degree. C., mixed with from 0 up to about 50% by weight of a polyisobutylene, polybutadiene oil and/or paraffin oil, and a tackifying resin. Thereby the active compound can be released in regulated relatively large quantity over a prolonged period of time.

Abstract: Compounds of the formula ##STR1## are suitable as curing accelerators which can be incorporated into ethylenically unsaturated, cold-curable resins.

Abstract: This invention relates to a thermosetting resin of either (a) at least one polycyanate and (b) at least one polyester polyol or of (c) a prepolymer of (a) and (b) and to the use thereof for the production of composite materials and of interpenetrating polymer networks (IPNs).

Abstract: The present invention relates to a process for the preparation of polycarbonate shaped articles from polycarbonates stabilized with phosphanes by the devolatilizing injection-moulding or devolatilizing extrusion process.

Abstract: Thermoplastic polyamides containing phenolic compounds in quantities of from 0.5 to 15%, by weight, based on polyamide are less sensitive to water.

Abstract: This invention relates to the use of polyamide imides as thermoplasts.

Abstract: This invention relates to a new process for the production of polyamide imides.

Abstract: In a therapeutic system such as a plaster for administration of an active compound through the skin and comprising a covering layer which is essentially impermeable to the active compound an active compound reservoir layer and a protective layer which can be pulled off and which is essentially impermeable to the active compound, the improvement wherein the reservoir layer contains about 1-30% of active compound in an elastomer mixture comprising at least one of polyisobutylene, polybutadiene oil and paraffin oil, and a tackifying resin. Thereby the active compound can be released in regulated relatively large quantity over a prolonged period of time.

Abstract: The present invention is directed to a process for the production of water- and solvent-resistant coated substrates by coating heat-resistant substrates with a solution or dispersion of an anionic group-containing polyisocyanate addition product in an aqueous solvent or dispersant and subsequently thermally treating the coating at a temperature of about 60.degree. to 200.degree. C., with evaporation or vaporization of the solvent or dispersant and simultaneous crosslinking of the polyisocyanate addition product which has been applied to the substrate, characterized in that incorporated anionic structural units corresponding to the formula ##STR1## are used in a quantity of about 5 to 1000 milliequivalents per 100 g of solids and the solids are based on reaction products of organic polyisocyanates with salts of cyanamide and bases selected from ammonia, primary and secondary amines having a minimum pKb value of 3.1, tertiary amines and mixtures thereof.

Abstract: Thermoplastical processible polyamides are rendered hydrophobic by addition of particular aromatic amines, optionally in combination with selected phenolic compounds.

Abstract: Polyamide block copolymers obtained by activated anionic polymerization of lactams having at least 5 ring members in the presence of basic catalysts, polyisocyanates as activators and amino-terminated polyethers, which are characterized in that the amino-terminated polyethers have a functionality of at least 3.0 preferably at least 3.2, and a molecular weight of at least 3500, and the polyisocyanates are aliphatic or cycloaliphatic polyisocyanates.

Abstract: This invention relates to polyarylene sulphides (PPS) produced in known manner from optionally substituted halogen benzenes and aromatic polyhalogen compounds, optionally in combination with other polymers, fillers and/or reinforcing fibres, which contain certain N-containing organic bases for reducing the elimination levels of acidic, corrosion-producing volatile constituents and for improving the flow properties thereof.