摘要:
Disclosed herein are compositions comprising a polymer comprising polyetherimide, polyetheretherketone, polyamide, polyoxyalkylene, or polyalkylene terephthalate, or a mixture thereof, and ultra-high molecular weight polyethylene, wherein the ultra-high molecular weight polyethylene comprises a surface modifier. Also disclosed are articles comprising one or more of the described compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
摘要:
The present disclosure relates to thermoplastic electrostatic dissipative (ESD) composites. The disclosed compositions comprise a thermoplastic resin phase and a filler composition comprising a conductive carbon black and a non-conductive polymer, dispersed within the thermoplastic resin phase. Also disclosed are methods for the manufacture of the disclosed composites and articles of manufacture comprising same.
摘要:
The present invention relates to a process for the production of polyacrylonitrile by polymerisation of a reaction mixture comprising acrylonitrile in a solution where the solvent is a eutectic system comprising a quaternary ammonium compound and a hydrogen donor. Such process allows for the production of a polyacrylonitrile having a desirably high molecular weight, whilst polymerisation time is reduced, and where the solvents are environmentally benign, biodegradable and may be reused in the polymerisation process.
摘要:
The present invention relates to a polymer composition comprising (a) 60.0-80.0 wt% of a (meth)acrylic polymer; and (b) 20.0-40.0 wt% of a copolymer prepared using styrene and maleic anhydride with regard to the total weight of (a) and (b), the total of (a) and (b) being 100 wt%; wherein the polymer composition is prepared by melt mixing of a mixture comprising (a) and (b) in a melt extruder, wherein the melt extruder comprises: (i) an inlet for feeding the mixture; (ii) a barrel comprising one or more extruder screw(s) each comprising a tip; (iii) one or more opening(s) for removing the obtained polymer composition from the extruder; and (iv) a volume of space in the area between the tip(s) of the extruder screw(s) and the opening(s) for removing the obtained polymer composition wherein during the melt mixing the temperature of the polymer composition in the volume of space (iv) is ≥ 235°C and ≤ 255°C. Such polymer composition has a desirable scratch resistance and a desirable heat resistance.