摘要:
The invention relates to powder-form polymer mixtures of silicone resins (B) and thermoplastic polymers (A), to their production and to their use for the modification of thermoplatics.
摘要:
The invention relates to flameproofed, non-dripping polyamide moulding compositions which contain certain amounts ofA) phosphinic acid esters of polyphenols based on phenol-aldehyde/ketone condensates,B) antidripping agents (such as polyfluoroethylene polymers or aramides) andC) zinc borateand if appropriate reinforcing agents and other additives for flameproofing and for processing etc.
摘要:
Thermoplastic molding compositions containing thermoplastic, aromatic polycarbonates, graft polymers, special phosphorus compounds, antidripping agents and optionally other thermoplasts as well as conventional additives are disclosed. The compositions are characterized by their flame resistance and mechanical properties. Also disclosed is a process for the preparation of the molding compositions.
摘要:
A flame resistant molding composition containing a polycarbonate resin, a graft polymer and, as a flame retarding agent a phosphoric acid ester of novolak in combination with an anti drip agent is disclosed. The composition may further contain a thermoplastic copolymer and/or polyalkylene terephthalate. A process for the preparation of the composition is also disclosed.
摘要:
The invention relates to thermoplastic molding compounds containing thermoplastic aromatic polycarbonates, thermoplastic copolymers, optionally graft polymers and/or tetrafluoroethylene polymers and/or silicone resins, characterized in that they contain phosphorus compounds corresponding to formula (I) ##STR1## in which R is a --CH.sub.2 --, ##STR2## group and the aromatic radicals may even be alkyl-substituted.
摘要:
The subject of the invention is flameproofed, non-dripping polyamide moulding compounds which contain specific amounts of the following:A) Phosphinic acid esters of polyphenols based on phenolaldehyde/ketone condensates,B) Anti-dripping agents (such as polyfluoroethylene polymers or aramides),C) Zinc borate,D) Thermoplastics with a predominantly aromatic main chain and a high thermal deflection temperature (Vicat B.gtoreq.180.degree. C.),and, if applicable, reinforcing agents and other additives for flameproofing and processing.
摘要:
The invention relates to thermoplastic polycarbonate molding compounds containing polycarbonates, copolymers, phosphorus compounds, tetrafluoroethylene polymers and, optionally, graft polymers and also further additives and other thermoplastics and also stabilizers, pigments, flow aids, mold release agents, antistatic agents and/or other flameproffing agents, characterized in that they contain as phosphorus compounds those corresponding to formula (I) ##STR1## and to a process for the production of the polycarbonate molding compounds.
摘要:
Thermoplastic polycarbonate moulding compounds containing 40 to 90 parts by weight of a thermoplastic aromatic polycarbonate; 0 to 80 parts by weight of a copolymer or polycondensate consisting of 0 to 50 parts by weight of a thermoplastic copolymer of 50 to 95% by weight of styrene, .alpha.-methylstyrene, styrene alkylated in the nucleus, halogenated styrene or mixtures thereof and 5 to 50% by weight of acrylonitrile, methacrylonitrile, alkyl acrylate, alkyl methacrylate, maleic acid anhydride, N-substituted maleiimide, vinyl acetate or mixtures thereof and/or 0 to 80 parts by weight of a thermoplastic polyalkylene terephthalate; 1 to 25 parts by weight of graft polymer prepared from 5 to 90 parts by weight of a mixture of: 50 to 95% by weight of styrene, .alpha.-methylstyrene, halogenated styrene, styrene alkylated in the nucleus, methyl methacrylate or mixtures thereof and 5 to 50% by weight of (meth)acrylonitrile, methyl methacrylate, maleic acid anhydride, N-substituted maleiimide or mixtures thereof on 10 to 95 parts by weight of a rubber having a glass temperature TG of .ltoreq.10.degree. C.; 1 to 30 parts by weight of phosphoric acid esters of phenols, bisphenols and/or polyphenols; and 0.05 to 5 parts by weight of anti-dripping agent, the total weight of the above amounting to 100 parts by weight, wherein the anti-dripping agent is aromatic polyamides or polyimidamides (aramides) in the form of fibres or powders or deposited on carriers.
摘要:
The flameproofed, non-dripping polyalkylene terephthalate molding compounds according to the invention based on phosphoric acid esters may be used for the production of moldings. The fire behavior of the polyalkylene terephthalate molding compounds is improved by the addition of certain phosphoric acid esters, a surprising reduction in the phosphorus content of the molding compounds being achieved at the same time, particularly in combination with highly heat-resistant thermoplastics.
摘要:
The invention relates to oligomeric and polymeric esters of difunctional polyphenylene ethers and phosphinic acids, phosphonic acids and phosphoric acid and to their use as a flame-retarding mixing component for other plastics.