Patent · US Active

Bimodal neodymium-catalyzed polybutadiene

US9284385B2 · kind B2 · utility

3Cited by

10References

20Claims

0Family size

Assignee

LANXESS Deutschland GmbH · DE

Inventors

Heike Kloppenburg · Düsseldorf, DE
Thomas Gross · Wermelskirchen, DE

Key dates

Filing date	Feb 17, 2011
Grant date	Mar 15, 2016
Priority date	—
Expiry date	Apr 27, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA63B2209/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a high molecular weight bimodal neodymium-catalysed polybutadiene having a high proportion, >95%, of cis-1,4 units and a low proportion, <1%, of 1,2-vinyl content, wherein the polybutadiene has a linear polymeric main fraction and a long chain branched polymeric fraction, wherein the slope in the RGM relationship is >0.5 for the polymeric main fraction and <0.3 for the long chain branched polymeric fraction.

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