Patent · US Expired

Segmented polyolefins

US5962594A · kind A · utility

8Cited by

3References

10Claims

0Family size

Assignee

Borealis AG · AT

Inventors

Manfred Raetzsch · Kirchschlag, AT
Hartmut Bucka · Staprijk, AT
Achim Hesse · Dresden, DE
Norbert Reichelt · Ansfelden, AT

Key dates

Filing date	May 27, 1998
Grant date	Oct 5, 1999
Priority date	—
Expiry date	May 27, 2018

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L53/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Segmented polyolefins, which are produced by the reaction of mixtures of powdery polyolefins and polyolefin granulates with unsaturated monomers in the presence of thermally decomposing free radical-forming agents in continuous mixers in two consecutive reaction steps in the solid phase, a reaction step in a solid phase/melt transition phase and a melt homogenizing step, have a high strength and tenacity. The segmented polyolefins, as well as mixtures with conventional polyolefins, are suitable for the production of films, sheets, fibers, panels, coatings, pipes, hollow objects and foams.

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