Patent · US Expired

Use of polyolefin waxes in the field of plastics processing

US7192909B2 · kind B2 · utility

16Cited by

14References

16Claims

0Family size

Assignee

Clariant Produkte (Deutschland) GmbH · DE

Inventors

Eric Richter · Thierhaupten, DE
Harald Kiesel · Friedberg, DE

Key dates

Filing date	Mar 14, 2001
Grant date	Mar 20, 2007
Priority date	—
Expiry date	Oct 29, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L23/08
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to the use of polyolefin waxes as external lubricants and release agents for plastics. Said polyolefin waxes are produced by using metallocene catalysts, whereby the polyolefin waxes are homopolymerizates of ethylene or are copolymerizates of ethylene with one or more 1-olefins, and linear or branched, substituted or non-substituted olefins having 3–18 C atoms are used as 1-olefins. The processable plastic mixtures produced in this manner have a distinctively longer tack-free time and exhibit an improved behavior with regard to mold release.

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