Abstract: Flame-retardant thermoplastic molding compositions comprise A) from 40 to 98% by weight of a thermoplastic polyamide B) from 1 to 40% by weight of melamine cyanurate C) from 1 to 50% by weight of a fibrous filler which is pretreated with a silane compound and whose arithmetic mean fiber length (d50) is from 70 to 200 &mgr;m, or of an acicular mineral filler or a mixture of these D) from 0 to 30% by weight of other additives and processing aids where the total of the percentages by weight of components A) to D) is 100%.

Abstract: A polymer useful for preparing moldings and comprising essentially units of the formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or methyl, andR.sup.3 is hydrogen, C.sub.1 -C.sub.18 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.6 -C.sub.10 -aryl or C.sub.6 -C.sub.10 -aryl-C.sub.1 -C.sub.4 -alkyl, each of which may be monosubstituted, disubstituted or trisubstituted by radicals selected from the group consisting of C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy and halogen, is obtainable by reacting a polymer based on C.sub.1 -C.sub.20 -alkyl esters of (meth)acrylic acid with a primary amine of the general formula IIR.sup.3 NH.sub.2 IIin the presence of a compound selected from the group consisting of phosphinic acid and phosphonic acid and their alkali metal, alkaline earth metal, aluminum and ammonium salts, wherein the ammonium ion can be monosubstituted, disubstituted, trisubstituted or tetrasubstituted by C.sub.1 -C.sub.4 -alkyl and/or C.sub.5 -C.sub.8 -cycloalkyl, or mixtures thereof.

Abstract: At least 99% pure 2,2'[oxybis (methylene)]bis-2-propenoic acidCH.sub.2 .dbd.C(COOH)CH.sub.2 --O--CH.sub.2 C(COOH).dbd.CH.sub.2is prepared by hydrolyzing an ester thereof in an aqueous basic medium and then acidifying the resultant salt.

Abstract: A polymer useful for preparing shaped articles comprises essentially repeat units of the formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or methyl, andR.sup.3 is C.sub.6 -C.sub.14 -aryl, which may be monosubstituted, disubstituted or trisubstituted by radicals selected from the group consisting of C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy and halogen,and is obtainable by reacting a polymer based on C.sub.1 -C.sub.20 -alkyl esters of methacrylic acid or of acrylic acid or mixtures of such esters with an aromatic amine of the general formula IIR.sup.3 NH.sub.2 IIin the presence of an amine having a pK.sub.b value .ltoreq.9.

Abstract: A process for isolating and purifying oxadimethacrylics of the general formula ICH.sub.2 .dbd.C(A)CH.sub.2 --O--CH.sub.2 C(B).dbd.CH.sub.2 Iwhere A and B are selected from the group consisting of --COOR.sup.1, --COR.sup.1, --CONR.sup.2 R.sup.3 and --CN and R.sup.1, R.sup.2 and R.sup.3 are each defined as follows:R.sup.1 is hydrogen, alkyl, substituted or unsubstituted cycloalkyl or cycloalkylalkyl, hydroxyalkyl, aminoalkyl, N-alkylaminoalkyl, N,N-dialkylaminoalkyl, substituted or unsubstituted aryl or arylalkyl,R.sup.2 and R.sup.3 are each hydrogen, alkyl, substituted or substituted cycloalkyl or cycloalkylalkyl, substituted or unsubstituted aryl or arylalkyl,comprises precipitating or crystallizing them from their solutions that contain at least one liquid hydrocarbon compound.

Abstract: A polymer useful for preparing shaped articles comprises essentially repeat units of the formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or methyl, andR.sup.3 is C.sub.6 -C.sub.14 -aryl, which may be monosubstituted, disubstituted or trisubstituted by radicals selected from the group consisting of C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy and halogen,and is obtainable by reacting a polymer based on C.sub.1 -C.sub.20 -alkyl esters of metharcylic acid or of arcylic acid or mixtures of such esters with an aromatic amine of the general formula IIR.sup.3 NH.sub.2 IIin the presence of an amine having a pK.sub.b value .ltoreq.9.

Abstract: A polymer comprising essentially units of formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or methyl, andR.sup.3 is C.sub.4 -C.sub.18 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.6 -C.sub.10 -aryl or C.sub.6 -C.sub.10 -aryl-C.sub.1 -C.sub.4 -alkyl, each of which except for the C.sub.4 -C.sub.18 -alkyl may be monosubstituted, disubstituted or trisubstituted by radicals selected from the group consisting of C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy and halogen, and having a carboxyl and anhydride group content of equal to or less than 0.40 equivalent per kilogram of polymer and an inherent color (measured as yellowness index) of equal to or less than 2.0, is obtainable by reacting a polymer based on C.sub.1 -C.sub.20 -alkyl esters of (meth)acrylic acid with a primary amine of the general formula IIR.sup.3 NH.sub.2 IIby removing the alcohol that forms during the reaction from the reaction mixture.

Abstract: Oxadimethacrylics useful for preparing pollers have the general formula ICH.sub.2 .dbd.C(A)CH.sub.2 --O--CH.sub.2 C(B).dbd.CH.sub.2 Iwhere A and B are selected from the group consisting of --COOR.sup.1, --COR.sup.1, --CONR.sup.2 R.sup.3 and --CN with the proviso that A.noteq.B, and R.sup.1, R.sup.2 and R.sup.3 are each defined as follows:R.sup.1 is hydrogen, C.sub.1 -C.sub.18 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.3 -C.sub.8 -cycloalkyl-C.sub.1 -C.sub.5 -alkyl, wherein the cycloalkyl rings may be C.sub.1 -C.sub.4 -alkyl- or C.sub.1 -C.sub.4 -alkoxy-monosubstituted, -disubstituted or -trisubstituted, hydroxy-C.sub.1 -C.sub.5 -alkyl, amino-C.sub.1 -C.sub.5 -alkyl, N-C.sub.1 -C.sub.4 -alkylamino-C.sub.1 -C.sub.5 -alkyl, N,N-di-(C.sub.1 -C.sub.4 -alkyl)amino-C.sub.1 -C.sub.5 -alkyl, C.sub.6 -C.sub.18 -aryl, C.sub.6 -C.sub.18 -aryl-C.sub.1 -C.sub.4 -alkyl, wherein the aryl groups may carry up to three of the following groups: halogen, C.sub.1 -C.sub.22 -alkyl, C.sub.1 -C.sub.4 -alkoxy, carboxyl, C.sub.1 -C.

Abstract: Copolymers obtainable by(I) copolymerizing a monomer mixture comprising(A) 1 to 98% by weight of a monomer of the formula I ##STR1## where: R.sup.1 to R.sup.6 are hydrogen, C.sub.1 -C.sub.10 -alkyl, C.sub.1 -C.sub.10 -alkoxy, it being possible in the alkyl or alkoxy radicals having more than one carbon atom for an oxygen atom to be inserted in each case between two carbon atoms, C.sub.5 -C.sub.8 -cycloalkyl, unsubstituted or substituted C.sub.6 -C.sub.10 -aryl, C.sub.6-C.sub.10 -aryl-C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.10 -aryloxy, cyano, halogen, --CO--O--R.sup.7, --O--CO--R.sup.7 or --CO--NR.sup.7 R.sup.8, whereR.sup.7 and R.sup.8 are hydrogen, C.sub.1 -C.sub.10 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, unsubstituted or substituted C.sub.6 -C.sub.10 -aryl or C.sub.6 -C.sub.10 -aryl-C.sub.1 -C.sub.10 -alkyl;p is 0, 1 or 2;Z is --CH.sub.2 --, oxygen or sulfur;Y is oxygen or --N--R.sup.9, whereR.sup.9 is hydrogen, C.sub.1 -C.sub.22 -alkyl, C.sub.5 -C.sub.12 -cycloalkyl, unsubstituted or substituted C.sub.

Abstract: A polymer comprising essentially at least two different repeat units of the formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or methyl,n is 0 or an integer from 1 to 9, andR.sup.3+n are from two to ten mutually different groups selected from hydrogen, C.sub.1 -C.sub.22 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.6 -C.sub.10 -aryl or C.sub.6 -C.sub.10 -aryl-C.sub.1 -C.sub.4 -alkyl, which radicals, except the C.sub.1 -C.sub.22 -alkyl, may each be monosubstituted, disubstituted or trisubstituted by radicals selected from the group consisting of C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy and halogen,is obtainable by reacting a polymer based on C.sub.1 -C.sub.20 -alkyl esters of (meth)acrylic acid with ammonia and from one to nine primary amines or a mixture of from two to ten primary amines of the general formula IIR.sup.3+n NH.sub.2 II.

Abstract: Copolymers are obtainable by (1) copolymerization of a monomer mixture of(A) from 1 to 99% by weight of at least one monomer of the general formula ICH.sub.2 .dbd.C(E)CH.sub.2 --O--CH.sub.2 C(F).dbd.CH.sub.2 Iwhere E and F are selected from the group consisting of --COOR.sup.1, --COR.sup.1, --CONR.sup.2 R.sup.3 and --CN, and R.sup.1 is H, C.sub.1 -C.sub.18 -alkyl, unsubstituted or substituted C.sub.3 -C.sub.8 -cycloalkyl or C.sub.3 -C.sub.8 -cycloalkyl- C.sub.1 -C.sub.5 -alkyl, hydroxy-C.sub.1 -C.sub.5 -alkyl, amino-C.sub.1 -C.sub.5 -alkyl, N-C.sub.1 -C.sub.4 -alkylamino-C.sub.1 -C.sub.5 -alkyl, N, N-di-C.sub.1 -C.sub.4 -alkylamino-C.sub.1 -C.sub.5 -alkyl, unsubstituted or substituted C.sub.6 -C.sub.18 -aryl or C.sub.6 -C.sub.18 -aryl-C.sub.1 -C.sub.4 -alkyl, andR.sup.2 and R.sup.3 are each H, C.sub.1 -C.sub.18 -alkyl, unsubstituted or substituted C.sub.3 -C.sub.8 -cycloalkyl or C.sub.3 -C.sub.8 -cycloalkyl-C.sub.1 -C.sub.5 -alkyl, unsubstituted or substituted C.sub.6 -C.sub.18 -aryl or C.sub.6 -C.sub.

Abstract: Storage-stable solutions of film forming carboxyl-containing copolymers, from 5 to 80% of whose carboxyl groups have been reacted with glycidyl (meth)acrylate, in an inert organic solvent or solvent mixture additionally contain a phosphoric ester of a hydroxyalkyl (meth)acrylate and, if required, orthophosphoric acid, and photosensitive coatings which contain a photoinitiator, ethylenically unsaturated organic monomeric compounds which can be subjected to free radical polymerization and, if required, plasticizers, dyes, dye precursors and thermal polymerization inhibitors are produced in such storage-stable solutions.They are particularly suitable for the production of offset printing plates.

Abstract: At least 95% tetrahydrofuran soluble polymers are obtainable by copolymerization of a monomer mixture ofA) from 1 to 99% by weight of at least one at least 98% pure monomer of the general formula ICH.sub.2 .dbd.C(E)CH.sub.2 --O--CH.sub.2 C(E').dbd.CH.sub.2 Iwhere E and E' have been selected from the group consisting of --COOR.sup.1, --COR.sup.1, --CONR.sup.2 R.sup.3 and --CN and R.sup.1, R.sup.2 and R.sup.3 are each defined as follows:R.sup.1 =H, alkyl, cycloalkyl, cycloalkylalkyl, wherein the cycloalkyl rings may be alkyl- or alkoxy-monosubstituted, -disubstituted or -trisubstituted, hydroxyalkyl, aminoalkyl, alkylaminoalkyl, dialkylaminoalkyl, aryl, arylalkyl, wherein the aryl groups may carry up to three of the following groups: halogen, alkyl, alkoxy, carboxyl, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, nitrilo, nitro, amino, alkylamino, dialkylamino;R.sup.2, R.sup.

Abstract: Methacrylate (co)polymers containing carbazolyl side groups contain or are composed of repeating units of the general formula (I) ##STR1## where m is an integer of from 3 to 11. The novel methacrylate (co)polymers containing carbazolyl side groups can advantageously be used as photoconductors in photoconductive layers, in particular of electrophotographic recording elements.

Abstract: Methacrylate (co)polymers containing carbazolyl side groups contain or are composed of repeating units of the general formula (I) ##STR1## where m is an integer of from 3 to 11. The novel methacrylate (co)polymers containing carbazolyl side groups can advantageously be used as photoconductors in photoconductive layers, in particular of electrophotographic recording elements.

Abstract: For the preparation of acrylate and/or methacrylate polymers containing carbazolyl side groups, polymers of acryloyl chloride and/or of methacryloxyl chloride are subjected to a polymer-analogous reaction in solution with alcoholates of N-(.omega.-hydroxyalkyl)-carbazoles. The poly(meth)acrylates containing carbazolyl side groups and prepared in this manner have good photoconductor properties and can advantageously be used in electrophotographic recording elements.

Abstract: A sensitized lithographic printing plate comprising an aluminum substrate which has been mechanically, chemically and/or electrochemically pretreated and anodically oxidized in a conventional manner and a photosensitive copying layer which is applied to this substrate is produced by a process in which the substrate is aftertreated with an aqueous solution of a mixture of a fluoride and a hydrolysis product or condensate of a silane before application of the photosensitive copying layer.There lithographic printing plates are particularly suitable for offset printing.

Abstract: An aqueous damping solution for the offset printing process contains a hydrolysis product of a compound of the general formula ##STR1## wherein R.sup.1 and R.sup.2 are identical or different and are each hydrogen, alkyl of 1 to 9 carbon atoms or aryl of 6 to 12 carbon atoms, or a condensate of this hydrolysis product.

Abstract: The surface of plates, foils or ribbons consisting of aluminum or aluminum alloys are anodically oxidized in an aqueous electrolyte as the anodizing bath by a process in which the electrolyte used may contain organic and inorganic acids together with further additives. The aqueous electrolyte must contain one or more silanes I of the formula IX--(CH.sub.2).sub.y --Si(R.sup.1).sub.n (OR.sup.2).sub.3-n Iwhere y is an integer from 1 to 4, n, independently of y, is 0, 1 or 2, R.sup.1 and R.sup.2 are each C.sub.1 -C.sub.9 -alkyl or C.sub.6 -C.sub.12 -aryl, X is selected from X.sup.1 to X.sup.11 ##STR1## where R.sup.3 is hydrogen, C.sub.1 -C.sub.9 -alkyl, an alkanecarboxylic acid group of 1 to 9 carbon atoms or a carboxylic anhydride ring obtained by reacting one of the said alkanecarboxylic acid groups of 1 to 9 carbon atoms with the methylenecarboxylic acid group ##STR2## bonded to R.sup.3, R.sup.4 and R.sup.5 are each C.sub.1 -C.sub.9 -alkyl or C.sub.6 -C.sub.12 -aryl, R.sup.6 is hydrogen, C.sub.1 -C.sub.

Abstract: A sensitized lithographic printing plate is produced from an aluminum base which has been mechanically, chemically and/or electrochemically pretreated and anodically oxidized in a conventional manner and a photosensitive copying layer which is applied to this base, by a process in which a thin layer which imparts hydrophilic properties and consists of a hydrolysis product or condensate of one or more silanes is applied between the base and the copying layer.These lithographic printing plates are particularly useful for offset printing.