Patent · US Expired

Method of preparing shaped articles from a mineral aggregate and a polyacrylate binder

US5145625A · kind A · utility

4Cited by

8References

5Claims

0Family size

Assignee

BASF SE

Inventors

Bernhard Dotzauer · Frankenthal (Pfalz), DE
Wilhelm Friedrich Beckerle · Frankenthal (Pfalz), DE
Hans-Juergen Denu · Lampertheim, DE
Kurt Wendel
Manfred Schwartz · Bischofswerda, DE

Key dates

Filing date	Jun 12, 1991
Grant date	Sep 8, 1992
Priority date	—
Expiry date	Jun 12, 2011

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S264/19
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Shaped articles are produced from a finely particulate material as aggregate and an aqueous binder preparation containing an acrylate polymer by moistening the aggregate with the binder preparation, making it into the desired shape and then drying it, using a binder preparation whose binder is an acrylate polymer whose glass transition range is relatively high and which is formed from (A) a predominant amount of methyl methacrylate, (B) a minor amount of (meth) acrylic acid, (C) a minor amount of an optional alkyl acrylate and (D) a small optional amount of another specific polymerizable compound.

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