Patent · US Active

Process for preparing higher molecular weight polyisobutylene

US9963521B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

BASF SE

Inventors

Thomas Wettling · Schifferstadt, DE
Stefan Hirsch · Neustadt, DE
Markus Brym · Schifferstadt, DE
Markus Weis · Ludwigshafen, DE
Rosa Corberan Roc · Ludwigshafen, DE
Klaus Muehlbach · Havelsee, DE
Robert Haschick · Mannheim, DE
Andreas Daiss · Deidesheim, DE
Marco-Christian Volland · Schifferstadt, DE

Key dates

Filing date	Feb 12, 2013
Grant date	May 8, 2018
Priority date	—
Expiry date	Apr 8, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F110/10
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Preparation of isobutene homopolymers having a weight-average molecular weight of 75 000 to 10 000 000 by polymerization of isobutene, by

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