Patent · US Expired

Elastic sealing material on the basis of block copolymers made of isobutene and vinyl aromatic monomers

US6649695B1 · kind B1 · utility

4Cited by

3References

6Claims

0Family size

Assignee

BASF SE

Inventors

Hans Peter Rath · Havelsee, DE
Arno Lange · Bad Dürkheim, DE
Helmut Mach · Heidelberg, DE
Konrad Knoll · Mannheim, DE

Key dates

Filing date	Feb 6, 2002
Grant date	Nov 18, 2003
Priority date	—
Expiry date	Feb 6, 2022

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE06B3/66342
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Linear or star block copolymers which have at least one polymer block A which is essentially composed of isobutene units and at least two polymer blocks B which are essentially composed of units which are derived from vinylaromatic monomers are used as resilient sealing material. In particular, such sealing materials are used for sealing the edge joints in insulation glass panes, and insulation glass panes have a flexible edge joint seal which contains one of the block copolymers.

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