Patent · US Expired

Highly crystalline polypropylene with low xylene solubles

US7361720B2 · kind B2 · utility

36Cited by
6References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 7, 2003
Grant dateApr 22, 2008
Priority date
Expiry dateOct 7, 2023

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L2314/06
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

The invention is directed to a polypropylene resin which has a Mw/Mn of less than 5, a melt flow rate of less than 7 g/10 min., a 1% secant flexural modulus of greater 5 than 300,000 psi and less than 2 wt. % xylene solubles.

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