Patent · US Expired

Compositions of melt-processable polymers having improved processability

US4386174A · kind A · utility

59Cited by
12References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 17, 1980
Grant dateMay 31, 1983
Priority date
Expiry dateNov 17, 2000

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L2205/06
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A melt-processable composition comprising at least one polymer capable of forming an anisotropic melt and at least one other melt-processable polymer characterized in that the temperature range over which the polymer can form an anisotropic melt overlaps the temperature range over which the melt-processable polymer may be melt processed. The melt viscosity of such compositions may be very much less than that of the melt-processable polymer in the absence of the anisotropic melt-forming polymer particularly at high shear rates, corresponding to those encountered during moulding and extrusion operations.

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