摘要:
Glass-fiber-reinforced ABS molding compounds containing up to 5% by weight of a tin-containing organic compound corresponding to formula (I) and/or (II) in which R1 and R2=C1-12 alkyl, R3, R4=C1-18 alkyl, R5=—(CH2)—n, —CH═CH—, —CH═CR1—, X=H, 1 equivalent of an alkali metal, preferably Na or K, ½ equivalent of an alkaline earth metal, preferably Mg or Ca, n=2-8.
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:
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:
Flame resistant thermoplastic moulding compositions consisting of(a) from 5 to 85 parts, by weight, of an aromatic polycarbonate,(b) from 15 to 95 parts, by weight, of a SAN-graft polymer,(c) from 0 to 50 parts, by weight, of a thermoplastic polymer,(d) optionally from 3 to 15 parts, by weight, (per 100 parts by weight of (a)+(b)+(c) of an organic, low molecular weight, oligomeric or polymeric halogen compound,(e) from 0.05 to 5 parts, by weight, (per 100 parts by weight of (a)+(b)+(c)) of antimony trioxide, antimony carbonate, bismuth trioxide or bismuth carbonate, and(f) from 0.05 to 0.5 parts, by weight, based on 100 parts, by weight, of the sum of (a)-(f), of finely-divided tetrafluoroethylene polumer having a fluorine content of from 65 to 76%, by weight, and a process for the production thereof.
摘要:
The present invention provides thermoplastic flame-retardant moulding compositions containing halogen-containing copolycarbonates, styrene/maleic anhydride copolymers, phosphorus compounds of the formula (I) ##STR1## and tetrafluoroethylene polymers and, if desired, further known additives.
摘要:
The present invention relates to a process for the preparation and/or further processing of polymer blends of thermoplastic, aromatic tetramethylbisphenol F-containing polycarbonates with styrene/acrylonitrile copolymers and/or with styrene/acrylonitrile graft polymers on special rubbers.
摘要:
The present invention relates to mixtures comprising(a) thermoplastic aromatic polycarbonates having Mw (weight average molecular weight) of 10,000 to 200,000, preferably 20,000 to 80,000 (determined by measuring the relative viscosity .eta.rel in CH.sub.2 Cl.sub.2 at 25.degree. C. and a concentration of 0,5 g per 100 ml CH.sub.2 Cl.sub.2(b) thermoplastic polymers of C.sub.1 -C.sub.4 --alkyl methacrylates having Mw (weight average moleculr weight) of 10,000 to 1,000,000 (measured in dimethylformamide at 25.degree. C.) and(c) particulate graft polymers of methyl methacrylate onto a particulate, highly crosslinked alkyl acrylate-rubber which can optionally also contain a crosslinked diene rubber as an inner core, as well as to thermoplastic moulding compositions based on thermoplastic ABS resins or thermoplastic SAN resins which contain the three-component mixture (a)+(b)+(c).