Abstract:
The present invention relates to the use of aromatic P-piperazine-compounds in flame retardant polymer compositions. These compositions are especially useful for the manufacture of flame retardant compositions based on thermoplastic polymers, especially polyolefin homo-and copolymers, polycondensates, such as polyamines or polyesters and duroplastic polymers, such as polyepoxides.
Abstract:
The present invention is related to the use of specific derivatives of diphosphines as flame retardants in aromatic and heteroaromatic epoxy resins and to a method for reducing the flammability of organic material comprising aromatic and/or heteroaromatic epoxy resins in which the specific derivates of diphosphines are incorporated. More-over, the invention is related to an aromatic and/or heteroaromatic epoxy resin composition containing aromatic and heteroaromatic epoxy resin as such or in processed form and incorporated in the aromatic and/or heteroaromatic epoxy resin at least one of the derivatives of diphosphines in an amount of from 1 to 35% by weight, based on the weight of the aromatic and/or heteroaromatic epoxy resin.
Abstract:
The present invention relates to the use of at least one urea compound of the formula (I), wherexis 1, 2 or 3; R 1 and R 2 are selected from hydrogen, linear C 1 -C 7 -alkyl, branched C 3 -C 10 -alkyl, unsubstituted or substituted C 3 -C 12 -cycloalkyl, unsubstituted or substituted C 3 -C 12 -cycloalkyl-C 1 -C 4 -alkyl, unsubstituted or substituted aryl and unsubstituted or substituted aryl-C 1 -C 4 -alkyl; and Z is selected from C 3 -C 10 -alkanediyl, unsubstituted or substituted arylene, unsubstitutedor substituted arylene-C 1 -C 4 -alkylene-arylene, unsubstituted or substituted heteroarylene, unsubstituted or substituted heteroarylene-C 1 -C 4 -alkylene-heteroarylene, unsubstituted or substituted C 5 -C 8 -cycloalkylene, unsubstituted or substituted C 5 -C 8 -cycloalkylene-C 1 -C 4 -alkylene-C 5 -C 8 -cycloalkylene, unsubstituted or substituted heterocycloalkylene and unsubstituted or substituted heterocycloalkylene-C 1 -C 4 -alkylene-heterocycloalkylene for improving at least one solid state property of a polyamide resin. The solid state property is preferably selected from mechanical properties and gloss.
Abstract:
The present invention relates to the use of aromatic P-N-compounds in flame retardant polymer compositions. These compositions are especially useful for the manufacture of flame retardant compositions based onthermoplastic polymers, especially polyolefin homo-and copolymers, polycondensates, such as polyamines or polyesters and duroplastic polymers, such as polyepoxides.
Abstract:
The present invention relates to flame retardant polymer compositions which comprise mixtures of salts of phosphinic acids and 2,2,6,6-tetraalkylpiperidines. The mixtures are especially useful for the manufacture of flame retardant compositions based on thermoplastic polymers.
Abstract:
A thermoplastic moulding composition comprising : a) from 50 to 96.95% by weight of polyamide containing aliphatic non-branched C10-12 building blocks, selected from polyamide 6.10 and mixtures of polyamide 6.10 with polyamide 6.12, polyamide 12.12, polyamide 11 and/or polyamide 12 as component A); b) from 0 to 37% by weight of further polyamide different from component A), as component B); c) from 3 to 30% by weight of polyamide-polyether block copolymer, as component C); d) from 0.05 to 1.5% by weight of hindered amine light stabilizer, as component D); e) from 0 to 1 % by weight of sterically hindered phenol oxidation retarder, as component E); f) from 0 to 20% by weight of further additives, as component F), where the total of the percentages by weight of components A) to F) is 100% by weight and the total of the percentages by weight of components B) and C) is not more than 40% by weight.
Abstract:
The present invention relates to a black-colored polyamide composition which comprises a polycondensate of formaldehyde, n-phenyl-benzene amine and 2-propanone and carbon black, and preferably also glass fibers, production of this polyamide composition and use thereof for the production of black-colored laser-inscribable polyamide moldings.
Abstract:
The invention relates to flame retardant compositions, wherein a phosphinic acid hydrazide is present in a polymer substrate. The combination with >NOR-compounds improves the flame retardant properties.
Abstract:
The invention relates to flame retardant polymer compositions with (thio)phosphinyl- iminophosphorane compounds as active component. These compositions are especially useful for the manufacture of flame retardant compositions based on thermoplastic polymers, especially polyolefin homo- and copolymers, polycondensates, such as polyamines or polyesters, and particularly duroplastic polymers, such as polyepoxides.
Abstract:
The present invention relates to a polymer composition comprising at least one polyamide and at least one urea compound of the formula I where x is 1, 2 or 3; R 1 and R 2 are selected from hydrogen, linear C 1 -C 7 -alkyl, branched C 3 -C 10 -alkyl, unsubstituted or substituted C 3 -C 12 -cycloalkyl, unsubstituted or substituted C 3 -C 12 -cycloalkyl-C 1 -C 4 -alkyl, unsubstituted or substituted aryl and unsubstituted or substituted aryl-C 1 -C 4 -alkyl; and Z is selected from C 3 -C 10 -alkanediyl, unsubstituted or substituted arylene, unsubstituted or substituted aryl unsubstituted or substituted ene-C 1 -C 4 -alkylene-arylene, unsubstituted or substituted heteroarylene, unsubstituted or substituted heteroarylene-C 1 -C 4 -alkylene-heteroarylene, unsubstituted or substituted C 5 -C 8 -cycloalkylene, C 5 -C 8 -cycloalkylene-C 1 -C 4 -alkylene-C 5 -C 8 -cycloalkylene, unsubstituted or substituted heterocycloalkylene and heterocycloalkylene-C 1 -C 4 -alkylene-heterocycloalkylene. This urea compound is used for improving the optical properties of the polyamide polymer composition. The present invention also relates to shaped articles obtained from said composition and to novel urea compounds.