The present disclosure relates to a polycarbonate resin and a method of preparing the same, has an effect of providing a polycarbonate resin having superior chemical resistance and wear resistance due to application of a predetermined comonomer thereto, and a method of preparing the same.

The present disclosure relates to a polycarbonate resin and a method of preparing the same, has an effect of providing a polycarbonate resin having superior chemical resistance and wear resistance due to application of a predetermined comonomer thereto, and a method of preparing the same.

Provided is a thermoplastic resin composition suitable for laser welding which has a laser transparency, a good laser weldability, mechanical properties, a high hydrolysis resistance, a laser-welded composite molded article such as a composite article obtained by laser-welding molded resin parts, and a method of laser welding such molded resin articles. The thermoplastic resin composition contains (A) polybutylene terephthalate, (B) polycarbonate, (C) reinforcing fiber, (D) epoxy compound, (E) carbodiimide compound, and (F) phosphorus-based stabilizer.

Methods of accelerating the reconstitution of plasma powder by mixing the powder with small beads is disclosed. The beads can be, for example, glass and/or plastic resin beads having a diameter from about 2 mm to about 6 mm. The plasma powder can be, for example, a spray-dried plasma powder. A method is provided of accelerating the reconstitution of a dry protein powder in a fluid that includes, but is not limited to, the steps of providing both a dry protein powder and small beads in a container, adding a reconstitution fluid to the container, and manipulating the dry protein powder and the small beads to dissolve the dry protein powder in the reconstitution fluid.

The present invention addresses the problem of providing a resin having a high Abbe number and a small difference in hygroscopic expansion coefficient with respect to a polycarbonate resin having a low Abbe number and a high refractive index. The above problem can be solved by a polycarbonate resin including structural units represented by general formula (1). In general formula (1), R represents H, CH.sub.3, or C.sub.2H.sub.5.

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The invention concerns polymer compositions comprising 20-80 weight percent polycarbonate polymer, 15-40 weight percent filler and 4-20% flame retardant and articles comprising same.

The invention concerns polymer compositions comprising 20-80 weight percent polycarbonate polymer, 15-40 weight percent filler and 4-20% flame retardant and articles comprising same.

A aircraft component comprises a polycarbonate composition comprising: a first polycarbonate selected from a polycarbonate homopolymer, a poly(aliphatic ester-carbonate), or a combination thereof; a second polymer different from the first polycarbonate, the second polymer comprising a poly(carbonate-siloxane) copolymer, a polydialkylsiloxane, a silicone graft copolymer, or a combination thereof, wherein siloxane units in the second polymer are present in the polycarbonate composition in an amount of 0.3 to 3 wt. %, based on the total weight of the polycarbonate composition; and 10 to 50 wt. % of glass fiber, based on the total weight of the polycarbonate composition.

A aircraft component comprises a polycarbonate composition comprising: a first polycarbonate selected from a polycarbonate homopolymer, a poly(aliphatic ester-carbonate), or a combination thereof; a second polymer different from the first polycarbonate, the second polymer comprising a poly(carbonate-siloxane) copolymer, a polydialkylsiloxane, a silicone graft copolymer, or a combination thereof, wherein siloxane units in the second polymer are present in the polycarbonate composition in an amount of 0.3 to 3 wt. %, based on the total weight of the polycarbonate composition; and 10 to 50 wt. % of glass fiber, based on the total weight of the polycarbonate composition.

A composition includes at least one poly(aliphatic ester)-polycarbonate copolymer, a polysiloxane-polycarbonate copolymer, non-bonding glass fibers, and titanium dioxide. The composition exhibits excellent impact properties and an ultra-white color.