Abstract: Described is photochromic particulate material comprising a photochromic substance within a matrix of a polymerizate of a polyfunctional acrylate monomer. The photochromic particulate material may be produced by adding an organic photochromic substance to a polymerizable composition including a polyfunctional acrylate monomer and polymerizing the resultant admixture, e.g., by emulsion polymerization. In the case of emulsion or suspension polymerization, finely divided particulate organic photochromic materials are separated from the polymerization medium in the form of spheroidal thermoset photochromic particles of fairly uniform size. If desired, the particles recovered from the polymerization medium may be further ground in conventional attrition mills to further reduce the size of the particulate product. In the case of bulk polymerization, the polymerizate may be formed as a continuously cast sheet, which is then pulverized to a particulate material of pigmentary size.

Abstract: As an outline of the invention of the present inventors, the gist of the present invention resides in the following:A polyester composition comprising:(A) 100 parts by weight of a substantially linear polyester comprising, as the main constituent unit, ethylene terephthalate;(B) 0.05 to 15 parts by weight of a crystallization promotor; and(C) 0.1 to 15 parts by weight of at least one plasticizer selected from the group consisting of (C.sub.1), (C.sub.2), (C.sub.3) and (C.sub.4) which are defined as follows:(C.sub.1) a condensation product of a compound of the formula (I):(HQ-R).sub.2 S (I)wherein two R groups may be the same as or different from each other and represent a hydrocarbon group selected from the group consisting of aliphatic, alicyclic, and aromatic hydrocarbon groups and any combination thereof, and two Q groups may be the same as or different from each other and represent oxygen or sulfur, with an organic compound containing two alcoholic or phenolic hydroxyl groups:(C.sub.

Abstract: Heterocyclic compounds of the formula (I) ##STR1## where n is an integer from 1 to 70,R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently of the others hydrogen, C.sub.1 -C.sub.22 -alkyl or C.sub.5 - or C.sub.6 -cycloalkyl orR.sup.1 and R.sup.2 and also R.sup.3 and R.sup.4 are each pairwise trimethylene or tetramethylene,A is a direct bond, C.sub.1 - C.sub.22 -alkylene, cycloalkylene, ##STR2## where m and o are each from 1 to 20 andR.sup.6 is C.sub.1 -C.sub.22 -alkyl, C.sub.5 -C.sub.12 -cycloalkyl, C.sub.7 -C.sub.18 -phenylalkyl, unsubstituted or substituted phenyl or C.sub.2 -C.sub.22 -cyanoalkyl,M is a group of the formula ##STR3## which may be bonded to A not only via the nitrogen but also via the carbon, and whereR.sup.7, R.sup.8, and R.sup.10 are each independently of the others C.sub.1 -C.sub.4 -alkyl orR.sup.7 and R.sup.8 and/or R.sup.9 and R.sup.10 are each pairwise tetramethylene or pentamethylene andR.sup.11 is hydrogen or C.sub.1 -C.sub.4 -alkyl,B is a direct bond, C.sub.1 -C.sub.

Abstract: The invention relates to the preparation of halogenated imides derived from hydrazine and halogenated dicarboxylic acid anhydride and which can be used as flameproofing agents for plastics. The condensation of hydrazine and halogenated dicarboxylic acid anhydride is carried out in an aqueous medium, at a temperature ranging from 40.degree. to 225.degree. C., with a molar ratio of anhydride/hydrazine substantially equal to 2.

Abstract: Composition of matter containing(a) a compound of the formula I ##STR1## in which A is one of the groups of the formulae ##STR2## in which B is --O--, --S--, --SO.sub.2 --, --N.dbd.N--, --CH.sub.2 --, --CH.dbd.CH--, ##STR3## --CONH--, --NHCONH--, or --CONHNHCO--, Q is --O-- or --NH-- and Z is --O-- or --S-- and R and R' are independently of each other hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or phenoxy, and(b) a compound of the formula II ##STR4## in which A' is as defined above for A, D is hydrogen, amino or a group of the formula III ##STR5## E is --O-- or --S--, T.sub.1, T.sub.2 and T.sub.3 independently of one another are chlorine or a group --ET', T' is a group of the formulae ##STR6## X.sup..sym. is H.sup..sym. or a group of the formulae M.sup.n.sym. /n or N.sup..beta. (R.sub.1)(R.sub.2)(R.sub.3)(R.sub.4), Mhu n.sym. is an n-valent metal cation, n is 1, 2 or 3, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently of one another hydrogen, C.sub.1 -C.sub.18 -alkyl, C.sub.

Abstract: Aromatic diolefinic compounds including 1,4-divinylbenzene derivatives, which are useful not only as organic photoconductive materials for electrophotography, but also as intermediates for producing diethyl aromatic compounds which are also useful as organic photoconductive materials for electrophotography, the aromatic diethyl compounds, an electrophotographic photoconductor containing any of the above aromatic diethyl compounds in a photosensitve layer thereof, and a charge transporting medium containing any of the aromatic diethyl compound are disclosed.

Abstract: The invention relates to polyester molding compositions, comprising substantially the polyester, preferably polyethylene terephthalate, a nucleating agent, a special imide compound as a further crystallization accelerator and, if appropriate, the conventional reinforcing agents and additives. The special crystallization accelerator according to the invention is virtually unreactive with the polyester and, in particular, is considerably more resistant to migration than relevant crystallization accelerators according to the state of the art. The invention also relates to a process for the preparation of these polyester molding compositions.

Abstract: Compounds of the formula (I) ##STR1## in which the Rs independently of one another are H, phenyl, naphthyl or C.sub.7 -C.sub.30 alkaryl and R.sup.1 is H, C.sub.1 -C.sub.8 alkyl, C.sub.7 -C.sub.9 aralkyl, C.sub.5 -C.sub.12 cycloalkyl, phenyl, naphthyl, C.sub.7 -C.sub.30 alkaryl or a group of the formula (II)--(CH.sub.2).sub.a --SR.sup.3 (II)R.sup.2 is C.sub.7 -C.sub.30 alkaryl, phenyl, naphthyl or phenyl containing, in the para-position, an HO or C.sub.1 -C.sub.18 alkoxy group or a group of the formulae ##STR2## or R.sup.1 and R.sup.2, together with the nitrogen atom to which they are attached, are a radical of the formula (III) ##STR3## R.sup.3 is a radical of the formulae --(CH.sub.2).sub.b --COOR.sup.6 or --(CH.sub.2).sub.2 OCOR.sup.7, a is the number 1, 2 or 3 and b is the number 1 or 2, and R.sup.4 is phenyl or a group of the formula (II), the two R.sup.5 s independently of one another are H, C.sub.1 -C.sub.24 alkyl, C.sub.5 -C.sub.12 cycloalkyl or C.sub.7 -C.sub.9 aralkyl, and R.sup.6 is H, C.sub.1 -C.

Abstract: Disclosed is a colored polarizing film having excellent durability which comprises (a) an organic polymer film or sheet and (b) at least one dichroic dye having an azo, anthraquinone, thioindigo, perylene or phthalone structure containing no water-soluble group. Also disclosed is a method of making a colored polarizing film using an organic polymer film or sheet formed of a polyamide or polyester resin, which comprises the steps of (a) blending (preferably, dry blending) a dichroic dye with the resinous polymer in advance, (b) melting the resulting blend and forming it into a film, and then (c) stretching the film in at least one direction.

Abstract: Disclosed is a polarizing film comprising a hydrophobic polymer containing a dichroic organic colorant in an oriented state which is characterized in that the dichroic organic colorant is substantially insoluble in water, organic solvents and liquid crystals and the dichroic ratio of the colorant is not less than 7 when it is measured with the film obtained by blending the colorant intimately with polyethylene terephthalate, melting the resulting blend and forming it into a film. This polarizing film has exceptionally excellent moisture resistance and thermal resistance.

Abstract: Disclosed herein is a thermoplastic polyester resin composition comprising a thermoplastic polyester resin and an amount effective in ultraviolet screening of at least one of naphthalenetetracarboxylic acids, acid anhydrides thereof, imides thereof and esters thereof.

Abstract: A flame retardant polypropylene based formulation which contains polypropylene and a flame retardant amount of decabromodiphenyl oxide and a halogenated bisimide.

Abstract: Bis-(2,2,6,6-tetramethyl-piperidyl)diimides are provided, having the formula: ##STR1## in which R is selected from the group consisting of hydrogen; oxyl; alkyl and alkenyl having from one to about eighteen carbon atoms; epoxy and hydroxyalkyl having from two to about eight carbon atoms; acyl having from two to about eight carbon atoms; and phenalkyl having from seven to about twelve carbon atoms; and Z is a tetravalent aliphatic or cycloaliphatic hydrocarbon group having from two to about eighteen carbon atoms; and stabilizer and synthetic polymer compositions containing such diimides having improved resistance to deterioration when exposed to light.

Abstract: Optionally substituted 3-benzalphthalides are effective UV stabilizers for thermoplastic aromatic polyesters, polycarbonates and polyester carbonates.

Abstract: For providing biocides in concentrated, immobilized form to an end use resin composition containing a primary thermoplastic resin with which the primary resin is incompatible at high concentrations, solid biocide resin concentrates are provided which immobilize high concentrations of biocide. The solid biocide resin concentrates may contain an alloy of two thermoplastic resins, one of which is substantially identical to the primary resin and one of which enables incorporation and immobilization of high concentrations of biocide in the solid biocide resin concentrates. The solid biocide resin concentrate may contain, in whole or in part, a thermoplastic copolymer having mer units such as are present in the primary resin in addition to dissimilar mer units which enhance compatibility of the biocide with the copolymer.

Abstract: A method of stabilizing an acid cured coating formulation against photo and/or thermal degradation without adverse effect on acid cure is disclosed. The method discloses incorporating a stabilizingly effective amount of a hindered amine light stabilizer (HALS) represented by Formula I: ##STR1## wherein R is a saturated or unsaturated, optionally alkyl- or alkenyl-substituted alkylene or cycloalkylene radical having 2-20 C-atoms and R' is selected from the group consisting of:hydrogen;an alkyl radical having 1-20 C-atoms;an alkenyl radical having 3-5 C-atoms;an aralkyl radical having 7-12 C-atoms;--CH.sub.2 --CH.sub.2 --CN;--CH.sub.2 --COO--alkyl;--CH.sub.2 --CH(CH.sub.3)--COO--alkyl; an acyl radical; and--(CH.sub.2 --CH.sub.2 O).sub.n H, wherein n can be 1-10.Also disclosed is an acid cured coating composition stabilized against photo and/or thermal degradation. The composition comprises: a stabilizingly effective amount of HALS represented by Formula I above.

Abstract: Flameproof thermoplastic polyamide moulding materials which contain 2 to 20% by weight, based on the polyamide, of at least one non-halogenated cyclic aromatic inside compound.

Abstract: In the preparation of a high resiliency polyurethane foam by reacting a polyisocyanate with a polyurea dispersion-containing polyol based masterbatch composition also containing a tertiary amine catalyst for the polyurethane reaction, the improvement for eliminating cure draft of such stored polyol compositions which comprises employing a catalyst composition consisting essentially of5 to 15 wt % triethylenediamine,20 to 35 wt % 4-(2-dimethylaminoethyl) morpholine,20 to 35 wt % N,N,N',N'-tetramethyl-1,2-diamino-2-methylpropane,10 to 25 wt % bis(dimethylaminoethyl)ether, and5 to 40 wt % of an N-hydroxyalkyl quaternary ammonium acid salt.

Abstract: Provided are microbiocidal solutions comprising an aryl alkanol solvent and a microbiocidal compound dissolved therein. The solutions may be used to impart microbiocidal properties to polymer compositions.

Abstract: Storage stable, water-free, RTV organopolysiloxane adhesives curable in the presence of water or atmospheric moisture, and comprising a dihydroxydiorganopolysiloxane polymer, fillers, an amine fraction and a curing catalyst, are characterized by incorporation therein of a polyalkoxylated organosilane having the formula:R'.sub.x Si[(OCH.sub.2 CH.sub.2).sub.p OCH.sub.3 ].sub.4-xwherein R' is methyl, vinyl, allyl, methallyl or phenyl, and p and x are each one or two.

Abstract: This invention relates to novel fiber forming polyester compositions that exhibit improved whiteness by incorporating derivatives of dibenzoisoquinolinediones of the formula ##STR1## wherein R is hydrogen, cycloalkyl, allyl, alkyl, aralkyl, alkoxyalkyl or cycloalkylalkylene;R.sub.1 is hydrogen, halogen, alkyl, alkoxy, aryloxy, alkylthio or arylthio;R.sub.2 is hydrogen, halogen, alkyl, aryl, alkoxy, aryloxy, alkylthio, arylthio, carbalkoxy, carbaryloxy, carbaralkyloxy, carboxy, sulfamoyl, alkylsulfamoyl, dialkylsulfamoyl, alkylarylsulfamoyl, cycloalkylsulfamoyl, arylsulfamoyl, carbamoyl, alkylcarbamoyl, dialkylcarbamoyl, alkylarylcarbamoyl, cycloalkylcarbamoyl, arylcarbamoyl, 2-pyrrolidono, acylamido or N-alkylacylamido;R.sub.

Abstract: A method of stabilizing a polymer film coating or molded article against the action of light, moisture, and oxygen is disclosed. The method comprises incorporating in said polymer a stabilizingly and synergistically effective amount of:(A) A 2,2,6,6-tetraalkylpiperidine compound, or the acid addition salts or complexes with metal compounds thereof; and(B) A tris-aryl-s-triazine compound represented by the formula: ##STR1## wherein X, Y and Z are each aromatic, carbocylic radicals of less than three 6-membered rings, and at least one of X, Y and Z is substituted by a hydroxy group ortho to the point of attachment to the triazine ring; and each of R.sup.1 through R.sup.9 is selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, sulfonic, carboxy, halo, haloalkyl and acylamino.

Abstract: A thermoplastic resin composition having excellent transparency and a high ultraviolet transmittance and free from a reddish color is obtained from a polymer or copolymer of 4-methyl-1-pentene and a blue pigment. Preferably, the composition further comprises a black pigment and/or a red pigment.

Abstract: Process for mass-coloring high molecular weight organic material, which comprises using a compound of the formula I ##STR1## in which one of R.sub.1 and R.sub.2 and one of R.sub.3 and R.sub.4 are independently of each other hydrogen, C.sub.1 -C.sub.12 -alkyl or benzyl and the other two radicals are independently of each other unsubstituted phenyl, phenyl which is substituted by halogen, trifluoromethyl, cyano, C.sub.1 -C.sub.12 -alkyl, phenyl or by the groups --OR.sub.5, --SR.sub.5, --COR.sub.6 or --SO.sub.2 R.sub.6, or a 5- or 6-membered aromatic heterocyclic ring containing one or more identical or different hetero atoms selected from the group consisting of nitrogen, oxygen and sulfur without or with one or two fused-on benzene rings, R.sub.5 is hydrogen or C.sub.1 -C.sub.12 -alkyl, R.sub.6 is C.sub.1 -C.sub.12 -alkyl, and X and Y are independently of each other hydrogen, halogen or cyano.The invention also relates to new pyridoquinolones of the formula I.

Abstract: Provided are microbiocidal solutions comprising an aryl alkanol solvent and a microbiocidal compound dissolved therein. The solutions may be used to impart microbiocidal properties to polymer compositions.

Abstract: A fire-resistant polycarbonate composition comprising a polycarbonate and for each one thousand parts by weight thereof from about 0.1 to 10 parts by weight of a salt of the formula: ##STR1## in which R is a C.sub.1 to C.sub.6 alkyl radical or an aryl radical, unsubstituted or substituted aryl radical and M is an alkali metal selected from Li, Na, or K.

Abstract: An organic photochromic composition comprising spiro [indoline-2,3'-[3H]-naphth [2,1-b] [1,4] oxazine] dye (spirooxazine dye) and unconventional ultraviolet stabilizers. The ultraviolet stabilizers improve the light fatigue resistance of the spirooxazine (S.O.) dye and will not hinder the photocolorability of the photochromic composition. The unconventional ultraviolet stabilizers belong to the class of hindered amine light stabilizers (HALS) and excited state quenchers.

Abstract: Thermoplastic polyester and polyesterether compositions having improved flame retardance, smoke generation and heat aging, reduced blooming and superior high temperature processability comprise a thermoplastic polyester or polyesterether resin derived from 1,4-butanediol and dimethyl terephthalate, antimony oxide, optionally fiberglass, and a chlorinated bisimide of the formula ##STR1##

Abstract: Flame retardant polyesterether elastomer compositions having superior high temperature processability and heat aging properties, resistance to blooming, improved flame retardance, and reduced smoke generation and reduced dripping during burning, comprise(a) a copolyesterether elastomer prepared from dimethyl terephthalate, polyether glycol and 1,4-butanediol;(b) a chlorinated bisimide of the formula: ##STR1## (c) antimony trioxide; and (d) polytetrafluoroethylene.

Abstract: A non-toxic edible enteric film coating dry powder and aqueous enteric coating suspension for coating pharmaceutical tablets and the like; the enteric coated tablets; and methods of making the enteric coating dry powder, the aqueous coating suspension, and of coating the tablets.

Abstract: Novel molding compositions comprising a polycarbonate resin and the halogenated reaction product of phthalic anhydride and aniline are characterized in their improved flame resistance and are useful for the preparation of molded articles.

Abstract: Process for mass-coloring high-molecular organic material, which comprises using a metal complex of the formulae I and/or Ia ##STR1## in which R is a hydrogen or chlorine atom or a methyl or methoxy group, R.sub.1 is a hydrogen atom, C.sub.1 -C.sub.4 -alkyl or phenyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, --NO.sub.2, --CONH.sub.2 --CONHR.sub.2 or C.sub.2 -C.sub.5 -N-alkylcarbamoyl, X is --CH.dbd. or --N.dbd., M is a divalent transition metal, and A is phenyl or substituted phenyl and R.sub.2 is alkyl, phenyl or substituted phenyl.The resulting colorations are distinguished by high tinctorial strength and good fastness properties, such as light, weathering and migration fastness properties.

Abstract: The radiation-induced conductivity of polymeric dielectrics with low electronic mobility is reduced by doping with electron donor or electron acceptor compounds at a level of 10.sup.15 to 10.sup.21 molecules of dopant/cm.sup.3. Polyesters, polyolefins, perfluoropolyolefins, vinyl polymers, vinylidene polymers, polycarbonates, polysulfones and polyimides can benefit from such a treatment. Usable dopants include 2,4,7-trinitro-9-fluorenone, tetracyanethylene, 7,7,8,8-tetracyanoquinodimethane, m-dinitrobenzene, 2-isopropylcarbazole, and triphenylamine.

Abstract: A method of stabilizing a polymer film coating or molded article against the action of light, moisture, and oxygen is disclosed. The method comprises incorporating in said polymer a stabilizingly and synergistically effective amount of:(A) A 2,2,6,6-tetraalkylpiperidine compound, or the acid addition salts or complexes with metal compounds thereof; and(B) A tris-aryl-s-triazine compound represented by the formula: ##STR1## wherein X, Y and Z are each aromatic, carbocylic radicals of less than three 6-membered rings, and at least one of X, Y and Z is substituted by a hydroxy group ortho to the point of attachment to the triazine ring; and each of R.sup.1 through R.sup.9 is selected from the group consisting of hydrogen, hydroxy, alkyl, alkoxy, sulfonic, carboxy, halo, haloalkyl and acylamino.

Abstract: A peroxide-curable fluoroelastomer composition which can be readily removed from a mold cavity without tearing which comprises a fluoroelastomer whose interpolymerized units consist essentially of units of tetrafluoroethylene, units of perfluoroalkyl perfluorovinyl ether, units of a bromine-containing olefin and, optionally, units of ethylene, and from about 0.05-2 parts per 100 parts fluoroelastomer of an N,N,N',N'-tetrasubstituted 1,8-diaminonaphthalene having the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently alkyl groups of 1-6 carbon atoms, phenyl or benzyl, R.sub.1 and R.sub.2 and/or R.sub.3 and R.sub.4 can be joined to form a 5- or 6-membered heterocyclic ring in which a carbon atom can be replaced by an oxygen or a sulfur atom, R.sub.1 and R.sub.3 and/or R.sub.2 and R.sub.

Abstract: Thermoplastic polyester and polyesterether compositions having improved flame retardance, smoke generation and heat aging, reduced blooming and superior high temperature processability comprise a thermoplastic polyester or polyesterether resin derived from 1,4-butanediol and dimethyl terephthalate, antimony oxide, optionally fiberglass, and a chlorinated bisimide of the formula ##STR1##

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.

Abstract: A rubber composition containing carbon black as a reinforcing filler and a quaternary ammonium salt as a coupling agent and a method of making it are disclosed.

Abstract: A rubber composition containing carbon black and a second particulate filler of kaolin, metakaolin, talc, pyrophyllite coal, coke, graphite or metal carbonate filler and a method of making it are disclosed.

Abstract: The present invention relates to novel bis-(imide-sulphonates) of the formula (I), a process for their preparation, their use for flameproofing aromatic, thermoplastic polycarbonates obtained from halogen-free diphenols, and thermoplastic aromatic polycarbonates obtained from halogen-free diphenols and containing 0.01 to 1% by weight, of bis-(imide-sulphonate) of the formula (I), based on an aromatic, thermoplastic polycarbonate.

Abstract: Flame retardants having good stability at the processing temperatures of high melting polymers are described. The flame retardants are halogen-containing bis-imides, for example, those of the formula ##STR1## R and X being defined in the specification.

Abstract: Filled rubber vulcanizates containing aromatic furazan oxides exhibit many improved properties such as increased filler-rubber interaction and decreased hysteresis. Useful furazan oxides have both carbons of the furazan ring as part of a fused aromatic ring. Typical examples are benzofurazan oxide and its methyl and methoxy analogs. Tires made from the inventive vulcanizates show lower running temperatures and improved rolling resistance. The desirable effects of the aromatic furazan oxides may be improved by mixing the rubber, filler and furazan oxide in a conventional mechanical compounding device at specific temperatures and time periods such as about 200.degree.-400.degree. F. for 2-20 minutes.

Abstract: This invention relates to new wire lacquers based on hydantoin group-containing polymers.

Abstract: Ultraviolet radiation resistant silicone resin coating compositions are provided having improved thermoformability. Improved thermoformability and shortened required aging are achieved by the addition of a Lewis acid compound to the coating compositions is disclosed. Thermoformability is also improved by using the UV screen containing silicone resin coating composition in conjunction with extensible acrylate primers.

Abstract: Carbon black products useful in rubber compositions, and rubber compositions (uncured or cured) containing said carbon black products are described. The carbon black products of the invention comprise carbon black having a surface area of at least 20 m.sup.2 /g. and up to about 10% by weight, based on the weight of the carbon black of at least one aromatic furazan oxide. Useful furazan oxides have both carbons of the furazan ring as part of a fused aromatic ring, and particular examples include benzofurazan oxide, and its methyl and methoxy analogs. Improvements in the processability of uncured rubber compositions containing the carbon black products of the invention have been observed.Filled rubber vulcanizates containing the carbon black products of the invention exhibit many improved properties such as increased filler-rubber interaction and decreased hysteresis.

Abstract: An encapsulant for an electronic device comprises a silicone resin having a highly colored porphyrin compound doped therein.

Abstract: A polymer mixture comprising(a) a base resin selected from the group consisting of polyphenylene ether resins and polyphenylene ether modified with alkenyl aromatic resins; and(b) an amount of antistatic agent effective for improving the antistatic character of said polymer mixture wherein said antistatic agent is a compound of the formula R--SO.sub.3 X, where R is an alkyl or aralkyl radical having 5 to 25 carbon atoms and X is an alkali metal.

Abstract: Transparent flame-retardant poly(arylether-arylsulfone) molding materials preferably contain not less than 50% by weight of units of the formula ##STR1## and, as a flameproofing agent, from 0.1 to 10% by weight, based on the weight of poly(arylether-arylsulfone), of a poly(2,6-dibromophenylene 1,4-oxide) having a molecular weight of from 1000 to 20000, and, if required, a heat stabilizer.The molding materials are useful for the production of shaped articles, films and fibers.

Abstract: 1:2 Nickel or 1:2 copper complexes of a naphthostyril of the formula ##STR1## or of tautomers thereof, in which A, X and Y are as defined in claim 1, are suitable for pigmenting high molecular weight organic material.

Abstract: A process for the manufacture of pigments of the formula ##STR1## where ##STR2## is a radical of barbituric acid or of one of its derivatives and ##STR3## is a divalent radical of benzene, 1,2- or 2,3-naphthalene, pyridine or pyrazine, which radical may be unsubstituted or substituted by halogen, alkyl of 1 to 10 carbon atoms, phenyl, carbamoyl, alkylcarbonylamino (where alkyl is of 1 to 17 carbon atoms), benzoylamino, alkoxy of 1 to 4 carbon atoms or phenoxy, the number of substituents being 1 or 2, by condensing amino-imino compounds or bis-imino compounds of the formula ##STR4## where R' and R" may be identical or different and are hydrogen, alkyl of 1 to 4 carbon atoms, hydroxyalkyl of 2 or 3 carbon atoms, phenylalkyl of 7 or 8 carbon atoms or phenyl, with barbituric acid or its derivatives, in the molar ratio of 1:2, in water in the presence of aliphatic carboxylic acids, aromatic carboxylic acids, aliphatic sulfonic acids, aromatic sulfonic acids, mineral acids or mixtures of these, at a pH of from 1 to