摘要:
A polyester composition includes specific amounts of a poly(alkylene terephthalate), an impact modifier, glass fibers, and a flame retardant. The impact modifier includes a polyolefin elastomer, optionally in combination with a thermoplastic polyester elastomer. The flame retardant includes a metal dialkylphosphinate, a melamine based flame retardant, and a flame retardant synergist that can be an organophosphine oxide, an oligomeric or polymeric bis(phenoxy)phosphazene, an organophosphate ester, or a combination thereof. The composition is useful for fabricating parts for electrical and electronic devices.
摘要:
This disclosure relates to halogen-free flame retardant polycarbonate/thermoplastic polyester molding compositions with improved mechanical properties and increased polyester loading level. More particularly, the disclosure relates to halogen-free polycarbonate/ thermoplastic polyester resin alloys with polymeric phosphorus flame retardant additive and siloxane impact modifier. Also included are methods for preparing such compositions and articles there from.
摘要:
In various aspects, the disclosure relates to reinforced thermoplastic compositions exhibiting improved physical properties as well as thin wall flame resistance. The reinforced thermoplastic compositions comprise polycarbonate polymer, a filler, and a polyolefin elastomer.
摘要:
The disclosure concerns blended thermoplastic compositions comprising (a) from about 50 wt% to about 80 wt% of a polycarbonate component; (b) from greater than 0 wt% to about 12 wt% of an impact modifier component; (c) from about 10 wt% to about 40 wt% of a filler; and (d) from about 5 wt% to about 15 wt% of a flame retardant component comprising an oligomeric phosphate ester, wherein the oligomeric phosphate ester is a free flowing powder at 23˚C; wherein the blended thermoplastic composition has a ductility of 100% at 10 °C when measured by a Notched Izod Impact test performed according to ASTM D256; wherein the combined weight percent value of all components does not exceed 100 wt%; and wherein all weight percent values are based on the total weight of the composition.
摘要:
A composition includes specific amounts of an aromatic polycarbonate, a polycarbonate-polysiloxane block copolymer, a poly(alkylene terephthalate), a flame retardant, and a drip retardant. The flame retardant includes an oligomeric or polymeric bis(aryloxy)phosphazene in combination with an organophosphine oxide, an oligomeric or polymeric aromatic phosphonate, or a combination thereof. The composition is useful for fabricating parts for electrical and electronic devices.
摘要:
A composition includes specific amounts of an aromatic polycarbonate, an impact modifier, a black colorant, and a copolyester or a block polyestercarbonate or a combination of the copolyester and the block polyestercarbonate. The composition exhibits increased gloss and decreased haze relative to a corresponding composition without the copolyester or the block polyestercarbonate. The composition is useful for fabricating parts such as television bezels, covers of computer gaming consoles, and mobile phone front bezels and back covers.
摘要:
The present invention relates to a film comprising a sealing layer comprising a polyethylene A comprising moieties derived from ethylene and moieties derived from an α-olefin comprising 4 to 10 carbon atoms, the polyethylene A having a density of ≥ 870 and ≤ 920 kg/m3, preferably of ≥ 900 and ≤ 920 kg/m3, as determined in accordance with ASTM D792 (2013), wherein the polyethylene A has: • a fraction of material that is eluted in analytical temperature rising elution fractionation (a-TREF) at a temperature ≤ 30.0°C of ≥ 5.0 wt% and ≤ 15.0 wt%, preferably ≥ 7.5 wt% and ≤ 12.5 wt%, with regard to the total weight of the polyethylene; and • two distinct peaks in the a-TREF curve in the elution temperature range of between 50.0 and 90.0 °C, wherein the elution temperature gap between the two peaks is ≤ 17.5°C, preferably ≤ 15.0°C. Such film allows for sealing of the film at a desirably low temperature, whilst still providing a desirable seal strength. Furthermore, such films demonstrates a desirably high heat stability.
摘要:
The present invention relates to a thermoplastic material, wherein the thermoplastic material comprises ethylene-based polymer material, wherein the ethylene-based polymer material has a Vicat softening temperature of ≥ 50°C as determined in accordance with ISO 306 (2013), method A50, and a weight loss as determined on a compression moulded sheet according to ISO 15527 (2010), Annex B, using silica sand/water slurry with a mass ratio of 3:2, test duration 7 h, of ≤ 0.50 wt%. The invention also relates to a slurry transportation pipe comprising the thermoplastic material as its inner layer, or consisting of the thermoplastic material.
摘要:
The invention relates to composition comprising (A) a propylene-based polymer, (B1) a first elastomer of ethylene and α-olefin comonomer having 4 to 10 carbon atoms, (B2) a second elastomer of ethylene and α-olefin comonomer having 4 to 10 carbon atoms and (C) an inorganic filler, wherein (B1) the first elastomer has a density of 0.850 to 0.890 g/cm3 and a melt flow index of 5 to 50 dg/min measured in accordance with ASTM D1238 using a 2.16 kg weight and at a temperature of 190 °C, wherein (B2) the second elastomer has a density of 0.850 to 0.890 g/cm3 and a melt flow index of 0.55 to 4 dg/min measured in accordance with ASTM D1238 using a 2.16 kg weight and at a temperature of 190 °C, wherein the total amount of (B1) the first elastomer and (B2) the second elastomer is 2 to 30 wt% based on the total composition, wherein the amount of (C) the inorganic filler is 0.1 to 30 wt% based on the total composition.
摘要:
Disclosed herein is a flame retardant composition comprising 20 to 80 weight percent of a polycarbonate; 1 to 20 weight percent of a halogenated phenoxyphosphazene flame retardant, where all weight percents are based on a total weight of the flame retardant composition. Disclosed herein too is a method comprising blending a 20 to 80 weight percent of a polycarbonate; and 1 to 20 weight percent of a halogenated phenoxyphosphazene flame retardant to produce a flame retardant composition, where all weight percents are based on a total weight of the flame retardant composition.