Abstract: It has been found, that when co-absorbing substances are added to intrinsic laser-absorbing bismuthoxide, the marking performance with a Nd.YAG-laser is improved or at least kept at the same level by reducing the costs. It is suspected, that the co-absorbing additive is not simply adding a contrast to the polymer by carbonizing the surrounding polymer but helping the bismuthoxide to couple the laser radiation and to ease the color change of this additive. This so found effect helps to cheapen the replacement of antimony trioxide and therewith have a safer and more sustainable solution for the current and future technology of laser marking.

Abstract: The invention relates to a polyether-polyester copolymer comprising: (i) polyether segments wherein at least one polyether segment contains at least one polytetramethylene oxide segment, (ii) polyester segments, (iii) bridging elements of the structure —CO—R2-CO—, wherein R2 represents an optionally substituted bivalent hydrocarbon residue consisting of 1 to 100 carbon atoms; (iv) one or two end-caps R1-O—(C2-C4—O—)e—*, wherein R1 is an optionally substituted hydrocarbon residue and e is an integer of from 0 to 1000.

Abstract: The invention relates to the use of at least one compound of the formula (1) herein R1, R2 and R3 are the same or different and denote a C1-C10-alkyl as a hydrolysis stabilizer in polyester materials.

Abstract: The invention relates to a liquid formulation for foaming a thermoplastic polystyrene, said formulation comprising a) a liquid carrier; and b) at least one endothermic chemical blowing agent selected from the group consisting of dicarboxylic acids, tricarboxylic acids, salts of dicarboxylic acids, salts of tricarboxylic acids, esters of dicarboxylic acids and esters of tricarboxylic acids.

Abstract: The invention relates to flame-retardant polyamide compositions with a glow wire ignition temperature of not less than 775° C., comprising polyamide having a melting point of not more than 290° C. as component A, fillers and/or reinforcers as component B, phosphinic salt of the formula (I) as component C in which R1 and R2 are ethyl, M is Al, Fe, TiOp or Zn, m is 2 to 3, and p=(4?m)/2 compound selected from the group of the Al, Fe, TiOp and Zn salts of ethylbutylphosphinic acid, of dibutylphosphinic acid, of ethylhexylphosphinic acid, of butylhexylphosphinic acid and/or of dihexylphosphinic acid as component D phosphonic salt of the formula (II) as component E in which R3 is ethyl, Met is Al, Fe, TiOq or Zn, n is 2 to 3, and q=(4?n)/2, and melamine polyphosphate having an average degree of condensation of 2 to 200 as component F.

Abstract: The invention relates to flame-retardant polyamide compositions comprising polyamide having a melting point of not more than 290° C. as component A, fillers and/or reinforcers as component B, phosphinic salt of the formula (I) as component C in which R1 and R2 are ethyl, M is Al, Fe, TiOp or Zn, m is 2 to 3, and p=(4?m)/2 compound selected from the group of the Al, Fe, TiOp and Zn salts of ethylbutylphosphinic acid, of dibutylphosphinic acid, of ethylhexylphosphinic acid, of butylhexylphosphinic acid and/or of dihexylphosphinic acid as component D phosphonic salt of the formula as component E in which R3 is ethyl, Met is Al, Fe, TiOq or Zn, n is 2 to 3, and q=(4?n)/2 melamine polyphosphate having an average degree of condensation of 2 to 200 as component F, and gray colorant as component G.

Abstract: The invention relates to a polymer composition, comprising: a polyether-polyester copolymer, a transition metal catalyst, and an active material that acts on, interacts or reacts with moisture wherein the polyether-polyester copolymer comprises (i) polyether segments wherein at least one polyether segment contains at least one polytetramethylene oxide segment, (ii) polyester segments, (iii) bridging elements of the structure CO-R2-CO—, wherein R2 represents an optionally substituted bivalent hydrocarbon residue consisting of 1 to 100 carbon atoms; (iv) one or two end-caps R1-O—(C2-C4—O—)e-*, wherein R1 is an optionally substituted hydrocarbon residue and e is an integer of from 0 to 1000. The invention also concerns use of the polymer composition as well as an article of manufacture comprising the polymer composition.

Abstract: The invention relates to a novel flame retardant-stabilizer combination for thermoplastic polymers, comprising, as component A, from 25 to 99.9% by weight of a phosphinic acid salt of the formula (I) wherein R1, R2 are the same or different and are each C1-C8-alkyl, linear or branched, C6-C18-aryl, C7-C18-arylalkyl or C7-C18-alkylaryl, or R1 and R2 form one or more rings with each other, M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base; m is from 1 to 4; as component B, from 0 to 75% by weight of a synergist or of a phosphorus/nitrogen flame retardant and, as component C, from 0.1 to 30% by weight of telomeric phosphinic acid salts as component D, from 0 to 20% by weight of organo phosphonic acid salt, as component E, from 0 to 5% by weight of phosphonic acid salt, the sum of the components always being 100% by weight, and wherein the angle of repose of said flame retardant-stabilizer combination is between 5° and 45°.

Abstract: The invention relates to the use of at least one compound of the formula (1) herein R1, R2 and R3 are the same or different and denote a C1-C10-alkyl as a hydrolysis stabilizer in polyester materials.

Abstract: A catalyst composition for a polyester manufacturing process, comprising a titanium catalyst and/or an antimony catalyst as main catalyst, and either (i) at least one co-catalyst A, or (ii) at least one co-catalyst Band at least one co-catalyst C, or (iii) a combination thereof, and wherein co-catalyst A is selected from the group consisting of a metal salt of an alkyl or an aryl phosphinic acid, or a metal salt of an alkyl or aryl diphosphinic acid, or a combination thereof, and co-catalyst B is selected from the group consisting of an alkyl or aryl phosphinic acid, an alkyl or aryl diphosphinic acid a combination thereof, and co-catalyst C selected from the group of a metal salt, a metal hydroxide or a metal organyl compound.

Abstract: The invention provides anticorrosive flame retardant formulations for thermoplastic polymers, comprising from 20 to 97.9% by weight of a (di)phosphinic acid salt of formula (I) and/or (II) wherein R1, R2 are the same or different and denote H or C1-C6-alkyl, linear or branched, and/oFr aryl; R3 denotes C1-C10-alkylene, linear or branched, C6-C10-arylene, C6-C10-alkylarylene or C7-C20-arylalkylene; M denotes Mg, Ca, Al, Sb, Sn, Ge, Ti, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base; m denotes from 1 to 4; n denotes from 1 to 4; x denotes from 1 to 4, and as component B from 2 to 50% by weight of a phosphazene of the general formula (III) or (IV) wherein R4 and R4? are the same or different and represent C1-C20-alkyl, C6-C30-aryl, C6-C30-arylalkyl or C6-C30-alkyl substituted aryl, and X represents a group —N?P(OPh)3 or —N?P(O)OPh and Y represents the group —P(OPh)4 or —P(O)(OPh)2; as component C from 0.

Abstract: The invention relates to a flame-retardant, polyamide composition containing: as component A) 1 to 96 wt. % of one or more thermoplastic polyamides; as component B) 2 to 25 wt. % of a dialkylphosphinic acid salt of formula (I), where R1 and R2 are the same or different and represent linear, branched or cyclical C1-C18 alkyl, C6-C18 aryl, C7-C18 aryl alkyl and/or C7-C18 alkylaryl; M represents Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base; m is 1 to 4; n is 1 to 4; as component C) 1 to 20 wt. % of a salt of phosphoric acid; as component D) 1 to 20 wt. % of one or more condensation products of melamine; as component E) 0 to 50 wt. % of a filler and/or reinforcing agent; as component F) 0 to 2 wt. % of a phosphite or phosphonite or mixtures thereof; and as component G) 0 to 2 wt. % of an ester or salt of long-chained aliphatic carboxylic acids (fatty acids) which typically have chain lengths of C14 to C40, the sum of the components always amounting to 100 wt.

Abstract: The invention relates to a flame retardant mixture comprising 99.9999% to 87% by weight of diorganylphosphinic acid salts as component A) and 0.0001% to 13% by weight of iron as component B), where the sum total of A) and B) is 100% by weight. The invention likewise relates to processes for producing the aforementioned flame retardant mixture and to the use thereof.

Abstract: The invention relates to flame-retardant polyamide compositions comprising polyamide having a melting point of not more than 290° C. as component A, fillers and/or reinforcers as component B, phosphinic salt of the formula (I) as component C in which R1 and R2 are ethyl, M is Al, Fe, TiOp or Zn, m is 2 to 3, and p=(4?m)/2 compound selected from the group of the Al, Fe, TiOp and Zn salts of ethylbutylphosphinic acid, of dibutylphosphinic acid, of ethylhexylphosphinic acid, of butylhexylphosphinic acid and/or of dihexylphosphinic acid as component D phosphonic salt of the formula (II) as component E in which R3 is ethyl, Met is Al, Fe, TiOq or Zn, n is 2 to 3, and q=(4?n)/2 melamine polyphosphate having an average degree of condensation of 2 to 200 as component F, and wax selected from the group of the polyolefin waxes, amide waxes, natural waxes, long-chain aliphatic carboxylic acids and/or the esters or salts thereof as component G.

Abstract: What are described are flame-retardant polyamide compositions having a heat deflection temperature HDT-A of at least 280° C., comprising polyamide having a melting point of not less than 290° C. as component A, fillers and/or reinforcers as component B, phosphinic salt of the formula (I) as component C in which R1 and R2 are ethyl, M is Al, Fe, TiOp or Zn, m is 2 to 3, and p=(4?m)/2 compound selected from the group of the Al, Fe, TiOp and Zn salts of ethylbutylphosphinic acid, of dibutylphosphinic acid, of ethylhexylphosphinic acid, of butylhexylphosphinic acid and/or of dihexylphosphinic acid as component D, and monoethylphosphinic salt of the formula II as component E in which R3 is ethyl, Met is Al, Fe, TiOq or Zn, n is 2 to 3, and q=(4?n)/2. The polyamide compositions can be used for production of fibers, films and shaped bodies, especially for applications in the electricals and electronics sector.

Abstract: It has been found, that when co-absorbing substances are added to intrinsic laser-absorbing bismuthoxide, the marking performance with a Nd.YAG-laser is improved or at least kept at the same level by reducing the costs. It is suspected, that the co-absorbing additive is not simply adding a contrast to the polymer by carbonizing the surrounding polymer but helping the bismuthoxide to couple the laser radiation and to ease the color change of this additive. This so found effect helps to cheapen the replacement of antimony trioxide and therewith have a safer and more sustainable solution for the current and future technology of laser marking.

Abstract: A catalyst composition for a polyester manufacturing process, comprising a titanium catalyst and/or an antimony catalyst as main catalyst, and either (i) at least one co-catalyst A, or (ii) at least one co-catalyst B and at least one co-catalyst C, or (iii) a combination thereof, and wherein co-catalyst A is selected from the group consisting of a metal salt of an alkyl or an aryl phosphinic acid, or a metal salt of an alkyl or aryl diphosphinic acid, or a combination thereof, and co-catalyst B is selected from the group consisting of an alkyl or aryl phosphinic acid, an alkyl or aryl diphosphinic acid a combination thereof, and co-catalyst C selected from the group of a metal salt, a metal hydroxide or a metal organyl compound.

Abstract: The invention relates a polyacrylate-polysilane block copolymer of general structure (I): wherein m and n independent of one another, are integers ranging from 2 to 4000; p is an integer ranging from 0 to 5; q is an integer ranging from 1 to 5; R1 represents hydrogen, straight-chain or branched alkyl group having 1 to 4 carbon atoms; R2 represents hydrogen, straight-chain or branched alkyl group having 1 to 18 carbon atoms; R3 represents hydrogen, hydroxyl group, straight-chain or branched alkyl group having 1 to 4 carbon atoms, or an C6-C14 aryl group; L is a linking moiety representing amine (—NH—) group, amide (—C(O)NH—) group, urea (—NHC(O)NH—) group, urethane (—OC(O)NH—) group or methylene (—CH2—) group; R4, R5 and R6 independent of one another, represents hydrogen, straight-chain or branched, alkyl group having 1 to 8 carbon atoms or polydimethylsiloxane group; and R7 represents hydrogen or methyl group.

Abstract: The invention relates to a flame-retardant polyamide composition comprising as component A) 1 to 96 wt % of one or more thermoplastic polyamides, as component B) 2 to 25 wt % of a dialkylphosphinic salt of the formula (I), and/or of a diphosphinic salt of the formula (II), and/or of polymers thereof, in which R1 and R2 are identical or different and are C1-C6-alkyl, linear, or branched, or H; R3 is C1-C10-alkylene, linear, or branched, C6-C10-arylene, C7-C20-alkylarylene, or C7-C20-arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base; m is 1 to 4; n is 1 to 4; x is 1 to 4, as component C) 1 to 20 wt % of a salt of phosphorous acid, as component D) 1 to 20 wt % of a phosphazene, as component E) 0 to 50 wt % of filler or reinforcing agent, as component F) 0 to 1 wt % of a phosphonite or of a mixture of a phosphonite and a phosphite, and as component G) 0 to 1 wt % of an ester or salt of long-chain aliphatic carboxylic acids (fatty acids), w

Abstract: The invention relates to flame-retardant polyester compositions comprising thermoplastic polyester as component A, fillers and/or reinforcers as component B, phosphinic salt of the formula (I) as component C in which R1 and R2 are ethyl, M is Al, Fe, TiOp or Zn, m is 2 to 3, and p=(4?m)/2 compound selected from the group of the Al, Fe, TiOp and Zn salts of ethylbutylphosphinic acid, of dibutylphosphinic acid, of ethylhexylphosphinic acid, of butylhexylphosphinic acid and/or of dihexylphosphinic acid as component D phosphonic salt of the formula II as component E in which R3 is ethyl, Met is Al, Fe, TiOq or Zn, n is 2 to 3, and q=(4?n)/2, inorganic phosphonate as component F, and wax selected from the group consisting of the polyolefin waxes, amide waxes, natural waxes, long-chain aliphatic carboxylic acids and/or esters or salts thereof as component G.