Patent · US Active

Thermoplastic compositions having high stiffness and methods of making them

US11364666B2 · kind B2 · utility

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9Claims
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Key dates

Filing dateOct 9, 2019
Grant dateJun 21, 2022
Priority date
Expiry dateOct 9, 2039

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L2205/08
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

An extruded thermoplastic composition includes: (a) from about 20 wt % to about 75 wt % of a ceramic fiber component; (b) from about 15 wt % to about 70 wt % of a polybutylene terephthalate (PBT) component including a high molecular weight PBT and a low molecular weight PBT; (c) from about 5 wt % to about 23 wt % of a polycarbonate component; and (d) from about 1 wt % to about 10 wt % of a compatibilizer component. Methods of making the extruded thermoplastic composition are also described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.