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 present invention relates to flame retardant polymer compositions which comprise aminoguanidine 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 flame retardant polymer compositions which comprise melamine phenylphosphonates and mixtures with dihydro-oxa-phosphaphenanthrene derivatives. 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 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. Moreover, 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: 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 50 ?m and/or the composite has a particle size distribution of 0.1-50 ?m 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.

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 mixtures of phosphinic acid salts and dihydrophospho-phenantrene (DOPO). The mixtures are especially useful for the manufacture of flame retardant compositions based on polyfunctional epoxides and epoxy resin compositions that result in laminates with excellent surface characteristics and reduced delamination tendency.

Abstract: The present invention relates to flame retardant polymer compositions which comprise melamine phenylphosphonates and mixtures with dihydro-oxa-phosphaphenanthrene derivatives. 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 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: The present invention relates to a surface-coating material comprising a matrix of an at least partly organic polymer and also at least one component selected from components which, following appropriate triggering, are reactive towards oxygen. These components are preferably oxygen-consuming and/or they are able to indicate the presence of oxygen. The surface-coating material is suitable in particular as a coating material or as an adhesive. The invention further relates to a substrate provided with a coating of the stated surface-coating material, to a composite material composed of a plurality of layers which have been joined using this surface-coating material, and to production processes therefor. In one particular embodiment the matrix is formed from an organic-inorganic hybrid polymer; alternatively it may have a purely organic construction. The component that is reactive towards oxygen may either be embedded in the matrix or incorporated covalently therein.