An aqueous dispersion of polyurethane resin is obtained by a chain elongation reaction in water wherein (C) at least one chain extender selected from a group consisting of water-soluble polyamines, hydrazine and derivatives thereof is added to a dispersion liquid obtained by emulsifying and dispersing a mixture in water. The mixture comprises: (B) at least one compound selected from the phosphorous compounds represented by the following formula (1) and (A) an urethane prepolymer and/or a neutralized urethane prepolymer material which has an isocyanate group at the terminal. The urethane prepolymer of component (A) is an urethane prepolymer obtained from (a1) an organic polyisocyanate and (a2) a polymeric polyol. The neutralized urethane prepolymer material of component (A) is a neutralized material obtained by neutralizing an urethane prepolymer which is obtained by further using (a3) a compound having an anionic hydrophilic group and at least two active hydrogens in a molecule together with the components (a1) and (a2).

An aqueous dispersion of polyurethane resin is obtained by a chain elongation reaction in water wherein (C) at least one chain extender selected from a group consisting of water-soluble polyamines, hydrazine and derivatives thereof is added to a dispersion liquid obtained by emulsifying and dispersing a mixture in water. The mixture comprises: (B) at least one compound selected from the phosphorous compounds represented by the following formula (1) and (A) an urethane prepolymer and/or a neutralized urethane prepolymer material which has an isocyanate group at the terminal. The urethane prepolymer of component (A) is an urethane prepolymer obtained from (a1) an organic polyisocyanate and (a2) a polymeric polyol. The neutralized urethane prepolymer material of component (A) is a neutralized material obtained by neutralizing an urethane prepolymer which is obtained by further using (a3) a compound having an anionic hydrophilic group and at least two active hydrogens in a molecule together with the components (a1) and (a2).

The present invention relates to a composite material comprising one or more fibre layers composed of a fibre material and an aromatic polycarbonate-based matrix material. The fibre layer(s) is/are embedded in the matrix material. The present invention further relates to a process for producing these fibre composite materials, to multilayer composite materials comprising several layers of fibre composite material, and to the use of the composite materials for production of components or housing components or housings, and to the components, housing components or housings themselves.

The present invention relates to a composite material comprising one or more fibre layers composed of a fibre material and an aromatic polycarbonate-based matrix material. The fibre layer(s) is/are embedded in the matrix material. The present invention further relates to a process for producing these fibre composite materials, to multilayer composite materials comprising several layers of fibre composite material, and to the use of the composite materials for production of components or housing components or housings, and to the components, housing components or housings themselves.

The invention relates to an additive composition with inorganic sulfites, organic derivatives of sulfurous acid and/or thiosulfates, and organic phosphorus compounds, said composition being capable of accelerating the hydrolytic decomposition of a thermoplastic condensation polymer upon working said additive composition into the condensation polymer. The invention additionally relates to a condensation polymer composition which is additivized with an additive composition according to the invention. The invention additionally relates to a method for the hydrolytic decomposition of a thermoplastic condensation polymer and to uses of the additive composition according to the invention and the thermoplastic condensation polymer composition.

The invention relates to an additive composition with inorganic sulfites, organic derivatives of sulfurous acid and/or thiosulfates, and organic phosphorus compounds, said composition being capable of accelerating the hydrolytic decomposition of a thermoplastic condensation polymer upon working said additive composition into the condensation polymer. The invention additionally relates to a condensation polymer composition which is additivized with an additive composition according to the invention. The invention additionally relates to a method for the hydrolytic decomposition of a thermoplastic condensation polymer and to uses of the additive composition according to the invention and the thermoplastic condensation polymer composition.

Polycarbonate compositions comprising a linear homopolycarbonate, a poly(phthalate-carbonate), or a combination thereof; a poly(carbonate-siloxane) component present in an amount effective to provide 0.1 to 10 wt % siloxane, based on the total weight of the composition, comprising: a poly(carbonate-siloxane) having a 30-70 wt % siloxane content, a combination of a poly(carbonate-siloxane) having a 10 wt % or less siloxane content and a poly(carbonate-siloxane) having greater than 10 wt % to less than 30 wt % siloxane content, or a combination thereof; a linear polycarbonate comprising 0.1-4.0 mole % repeating units derived from a monomer having a pendant ester group based on the total moles of the composition; optionally, a reinforcing composition comprising glass fibers, a mineral filler, or a combination thereof; and a flame retardant comprising an aromatic organophosphorous compound can have low smoke density characteristics (e.g., a DS-4 measured according to ISO5659-2) and low heat release characteristics, (e.g., MAHRE measured according to ISO5660-1).

Polycarbonate compositions comprising a linear homopolycarbonate, a poly(phthalate-carbonate), or a combination thereof; a poly(carbonate-siloxane) component present in an amount effective to provide 0.1 to 10 wt % siloxane, based on the total weight of the composition, comprising: a poly(carbonate-siloxane) having a 30-70 wt % siloxane content, a combination of a poly(carbonate-siloxane) having a 10 wt % or less siloxane content and a poly(carbonate-siloxane) having greater than 10 wt % to less than 30 wt % siloxane content, or a combination thereof; a linear polycarbonate comprising 0.1-4.0 mole % repeating units derived from a monomer having a pendant ester group based on the total moles of the composition; optionally, a reinforcing composition comprising glass fibers, a mineral filler, or a combination thereof; and a flame retardant comprising an aromatic organophosphorous compound can have low smoke density characteristics (e.g., a DS-4 measured according to ISO5659-2) and low heat release characteristics, (e.g., MAHRE measured according to ISO5660-1).

A composition contains at least a copolyamide (PA-1) as a component (I), produced by polymerization of at least one lactam and of a monomer mixture (M) which contains at least a C.sub.32-C.sub.40 dimer acid and at least a C.sub.4-C.sub.12 diamine; and a flame retardant (F1) as a component (II). The flame retardant (F1) is selected from melamine cyanurates, magnesium hydroxide, and phosphorus-containing flame retardants. A process can be used for preparing such compositions, and the composition can be used for producing shaped articles.

A composition contains at least a copolyamide (PA-1) as a component (I), produced by polymerization of at least one lactam and of a monomer mixture (M) which contains at least a C.sub.32-C.sub.40 dimer acid and at least a C.sub.4-C.sub.12 diamine; and a flame retardant (F1) as a component (II). The flame retardant (F1) is selected from melamine cyanurates, magnesium hydroxide, and phosphorus-containing flame retardants. A process can be used for preparing such compositions, and the composition can be used for producing shaped articles.