Patent · US Active

Soft polyolefin compositions with improved processability

US9029455B2 · kind B2 · utility

0Cited by

5References

6Claims

0Family size

Assignee

Basell Poliolefine Italia S.r.l. · IT

Inventors

Paolo Goberti · Vigarano Mainarda, IT
Johan De Clippeleir · Oud-Heverlee, BE
Giampaolo Pellegatti · Ventimiglia, IT
Friederike Morhard · Bad Mergentheim, DE
Stefano Spataro · Ferrara, IT

Key dates

Filing date	Jul 29, 2008
Grant date	May 12, 2015
Priority date	—
Expiry date	Jun 18, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L23/20
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Soft polyolefin composition with improved processability comprising from 8 to 45% by weight of a polypropylene component (A), from 82 to 45% by weight of an elastomeric component (B), and from 10 to 25% by weight of a viscosity reducing agent (C) comprising polybutene-1 and paraffinic wax or grease. The composition is easily processable also by injection molding and has better tensile properties than compositions in which processability is improved by visbreaking.

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