Abstract:
The present invention relates to flame retardant polymer compositions which comprise mixtures of melamine or guanidine phenylphosphonates and mixtures with 2, 2, 6, 6-tetraalkyl- piperidines. The mixtures are especially useful for the manufacture of flame retardant compositions based on thermoplastic polymers.
Abstract:
The present invention relates to flame retardant polymer compositions which comprise guanidine phenylphosphinates and mixtures with additional flame retardants.The compositions are especially useful for the manufacture of flame retardant compounds based on polyfunctional epoxides or polycondensates like polyesters, polyamides and polycarbonates.
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 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:
Die vorliegende Erfindung betrifft ein Lackmaterial, umfassend eine Matrix aus einem zumindest teilweise organischen Polymeren sowie mindestens eine Komponente, ausgewählt unter Komponenten, die nach geeigneter Triggerung gegenüber Sauerstoff reaktiv sind. Diese Komponenten sind vorzugsweise sauerstoffzehrend und/oder sie können die Gegenwart von Sauerstoff anzeigen. Das Lackmaterial eignet sich insbesondere als Beschichtungslack oder als Klebstoff. Die Erfindung betrifft weiterhin ein mit einer Beschichtung aus dem genannten Lackmaterial versehenes Substrat, ein Verbundmaterial aus einer Mehrzahl von Schichten, die mit diesem Lackmaterial verbunden wurden, sowie Herstellungsverfahren hierfür. In einer besonderen Ausführungsform ist die Matrix aus einem anorganisch- organischen Hybridpolymeren gebildet; sie kann jedoch auch rein organisch aufgebaut sein. Die gegenüber Sauerstoff reaktive Komponente kann entweder in die Matrix eingebettet oder kovalent darin eingebunden sein.
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:
Condensation products of melamine and phenylphophonic acid, a process for their preparation, their compositions with polymeric materials and their use as flame retardants in polymer substrates are provided. The compositions are especially useful for the manufacture of flame retardant compounds based on polyfunctional epoxides or polycondensates, such as polyesters, polyamides and polycarbonates.
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 new composite comprises (a) 10.1 -99.9 % by weight of elemental Ag and (b) 0.1 -89.9 % by weight of ZnO, wherein the sum of (a) and (b) makes 90 % or more by weight of the composite and wherein the elemental Ag has a primary particle size of 10-200 nm and/or the ZnO has a primary particle size of 0.1 to below 50µm and/or the composite has a particle size distribution of 0.1 - 50 µm and/or a BET surface area of 10-100 m2/g. The novel composite may be obtained by the steps (i) mixing a first mixture of at least one Ag-salt with a second mixture of at least one Zn-salt thereby forming a third mixture of Ag- and Zn-salts, (ii) adding the third mixture to a mixture of a carbonate source, (iii) co-precipitating of the Ag- and Zn-carbonates formed in step (ii), (iv) washing of the Ag- and Zn-carbonates and (v) thermal decompositing of the Ag- and Zn-carbonates. The novel composites are useful to impart antimicrobial properties to surfaces, articles or bulk compositions, especially to membrane systems for gas- or water separation.