Abstract:
The invention relates to flame retardant compositions comprising heptaphosphorus-derived compounds and to novel heptaphosphorus-derived compounds. These heptaphosphorus-derived compounds are especially useful for the manufacture of flame retardant compositions based on thermoplastic polymers, especially polyolefin homo- and copolymers, polycondensates, such as polyamides, or polyesters and duro-plastic polymers, such as the ones based on polyepoxides.
Abstract:
A biocidal composition comprising a synergistic ratio of 2,2-dibromomalonamide and hydroxymethyl-substituted phosphorus compound, and its use for the control of microorganisms in aqueous and water-containing systems.
Abstract:
The present invention relates to coatings for a polymer, the coating comprising a diacrylate of an aliphatic diol, a polyacrylate of an aliphatic polyol, a photoinitiator, wherein the average molecular weight between crosslinks in the coating is less than 190 g/mol. The invention further relates to articles comprising the coating and a polymer.
Abstract:
Halogenfreie, flammgeschützte Polymerschaumstoffe, die als Flammschutzmittel eine mindestens eine cyclische oder alicyclische Oligophosphorverbindungen enthalten, sowie Verfahren zu ihrer Herstellung. Geeignete Oligophosphorverbindungen sind beispielsweise solche mit den Strukturen Ia, Ib oder Ic: Eine weitere Gruppe von geeigneten Oligophosphorverbindungen weisen eine der folgenden Strukturen IIa, IIb oder IIc auf: Desweiteren sind cyclische Oligophosphorverbindung der folgenden Struktur III geeignet: Die Reste R 1 -R 5 sind unabhängig von einander ausgewählt aus der Gruppe von C 1 - C 16 -alkyl, C 1 -C 16 -alkenyl, C 1 -C 16 -alkoxy, C 1 -C 16 -alkenyloxy, C 3 -C 10 -cycloalkyl, C 3 -C 10 - cycloalkoxy, C 6 -C 10 -aryl, C 6 -C 10 -aryloxy, C 6 -C 10 -aryl-C 1 -C 16 -alkyl, C 6 -C 10 -aryl-C 1 -C 16 -alkoxy, NR 2 R 3 , COR 2 , COOR 2 und CONR 2 R 3 , und die Reste X 1 , X 2 und X 3 unabhängig voneinander O oder S bedeuten.
Abstract:
There is provided a plastic or gel material comprising a mixture of: (a) a compound of formula (I) or a mixture of two or more compounds of formula (I), (R + ) n (X n- ) (I) or a hydrate thereof, wherein n, R + and X n- have meanings given in the description; (b) one or more uncharged organic compounds, each of which compounds comprises at least one oxygen atom and at least one hydrogen atom that is capable of forming a hydrogen bond with X n- ; and (c) one or more polysaccharides, wherein each polysaccharide is a polymer of pyranose monomers, at least 30% of which monomers are in the α-anomeric conformation. There is also provided articles formed from such materials, uses of such materials and processes for forming such materials.
Abstract:
This invention relates to organic salt compositions useful in the preparation of organoclay compositions, polymer-organoclay composite compositions, and methods for the preparation of polymer nanocomposites. In one embodiment, the present invention provides a method of making a polymer-organoclay composite composition, said method comprising melt mixing a quaternary organoclay composition comprising alternating inorganic silicate layers and organic layers, said organic layers comprising a quaternary organic cation with a polymeric resin comprising at least one polymer selected from the group consisting of polyamides, polyesters, polyarylene sulfides, polyarylene ethers, polyether sulfones, polyether ketones, polyether ether ketones, polyphenylenes, and polyphenylenes said polymeric resin being substantially free of polyetherimides; said melt mixing being carried out at a temperature in a range between about 300 °C and about 450 °C to provide a polymer-organoclay composite composition, said polymer-organoclay composite composition being characterized by a percent exfoliation of at least 10 percent.