Patent · US Expired

Flexible bismaleimides

US4745197A · kind A · utility

6Cited by

7References

5Claims

0Family size

Assignee

BASF SE

Inventors

Philipp Eisenbarth · Bad Dürkheim, DE
Anton Hesse · Weinheim, DE
Jan Holoch · Leimen, DE
Roland Peter · Mutterstadt, DE

Key dates

Filing date	Jun 30, 1987
Grant date	May 17, 1988
Priority date	—
Expiry date	Jun 30, 2007

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L67/06
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Bismaleimides having the general formula ##STR1## in which n is a whole number between 5 and 70 and --X-- is --O-- or --NH-- are prepared through the reaction of the corresponding amino-terminated polyoxybutylenes with 2 moles of maleic anhydride. They are suited as toughening agents in high grade reactive resins.

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