摘要:
Stabilized thermoplastic moulding compositions comprising (1) from 10 to 90 parts by weight of a polycarbonate, based on aromatic dihydroxy compounds; and (2) from 90 to 10 parts by weight of a mixture of (2.1) from 25 to 100 parts by weight of a graft copolymer of a monomer mixture of styrene, methyl methacrylate or acrylonitrile polymerized on a rubber; of (2.2) from 0 to 20 parts by weight of a butadiene polymer having a butadiene content of at least 5 parts by weight; and (2.3) from 0 to 75 parts by weight of a copolymer of styrene, .alpha.-methyl styrene, methyl methacrylate, acrylonitrile or methacrylonitrile; containing 0.01 to 3.0% by weight, based on the whole stabilized mixture, of at least one ester of phosphorous acid and an ortho- or para-substituted phenol or bisphenol, and a process for their production.
摘要:
This invention relates to the thermal stabilization of mixtures of aromatic polycarbonates and ABS polymers using 0.01 to 3% by weight, based on the total mixture, of esters of boric acid, in particular with ortho and/or para-alkyl substituted phenols or the corresponding bis-phenols.
摘要:
The invention relates to thermoplastic molding compounds containing1. thermoplastic aromatic polycarbonates and/or thermoplastic aromatic polyesters,2. graft polymers,3. special copolymers corresponding to formula (Ia)[A-X-B].sub.r (Ia)and, optionally,2a. thermoplastic copolymers, stabilizers, pigments, mold release agents, flameproofing agents and/or antistatic agents.The invention also relates to a process for the production of the molding compounds.
摘要:
The present invention relates to thermoplastic moulding materials containing thermoplastic polycarbonates, graft polymers and two different copolymers and, if appropriate, customary amounts of fire-retarding agents, stabilizers, pigments, mould release agents and/or antistatic agents, and to a process for the preparation of these moulding materials.
摘要:
Particularly high-grade blends of thermoplastic polycarbonates, graft copolymers and, optionally, further thermoplastic resins, useful as moulding materials with good low-temperature impact strength and resistance to ageing and light, which yield mouldings with superior surfaces, are obtained from graft bases which are silicone rubbers containing sulphur in addition to groups containing carbon double bonds.
摘要:
The invention relates to a process for the preparation of powder form polymer mixtures consisting of a tetrafluoroethylene polymer and an organic thermoplastic polymer, the tetrafluoroethylene polymer being present in the compositions in a particulate, highly disperse form; the powder form polymer mixtures thereby obtained have special and surprising properties when they are processed in a thermoplastic manner to give plastics articles and when they are added to conventional thermoplastics.
摘要:
Polycarbonate molding compositions resistant to light aging and exhibiting an improved notched impact strength are disclosed. The compositions which are based on an aromatic polycarbonate, aromatic polyester carbonate or a polyester, contain a redox-catalyzed graft polymer of resin-forming monomers on a rubber, a phosphorus compound and a fluorinated polyolefin.
摘要:
Thermoplastic moulding compounds based on fully aromatic polyester carbonates polyalkylene terephthalates and grafted diene rubber have a well balanced combination of notched impact strength at room temperature and low temperatures and high weld line strength and may be used for the production of moulded articles, in particular by injection moulding.
摘要:
The invention relates to thermoplastic polycarbonate molding compositions containing polycarbonates, special siloxane-containing graft polymers and, optionally, lower thermoplasts and/or standard additives and to a process for the production of the polycarbonate molding compositions.
摘要:
The present invention relates to thermoplastic moulding compositions comprising polydiorganosiloxanepolycarbonate block copolymers, copolymers of styrene and maleic anhydrides, graft polymers and, where appropriate, further customary additives and a process for preparing these moulding compositions.