Patent · US Expired

Alkyl (meth)acrylate-maleic anhydride copolymer-modified bitumen

US5266615A · kind A · utility

11Cited by

6References

9Claims

0Family size

Assignee

Roehm GmbH Chemische Fabrik · DE

Inventors

Juergen Omeis · Emmelshausen, DE
Michael Mueller · Bensheim, DE
Horst Pennewiss · Darmstadt, DE

Key dates

Filing date	Aug 17, 1992
Grant date	Nov 30, 1993
Priority date	—
Expiry date	Aug 17, 2012

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L95/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention provides a polymer-modified bitumeniferous composition containing polymer components in the amount of 0.5-50 wt. %, wherein 20-100 wt. % of the polymeric additive is a copolymer comprises of units of: C.sub.6 -C.sub.28 -alkyl (meth)acrylates in the amount of 80-99.9 wt. %, maleic anhydride in the amount of 0.1-20 wt. %, and other polymerizable compounds in the amount of 0-19.9 wt %. The polymer-modified bitumens exhibit excellent and persistent homogeneity, high elastic resilience, and a good range of plasticity.

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