Patent · US Active

Methods for producing polyaspartic acids in the presence of methanesulfonic acid

US10233286B2 · kind B2 · utility

0Cited by

20References

20Claims

0Family size

Assignee

BASF SE

Inventors

Jürgen Detering · Schifferstadt, DE
Gazi Türkoglu · Mannheim, DE
Dietrich Fehringer · Dielheim, DE

Key dates

Filing date	Sep 8, 2014
Grant date	Mar 19, 2019
Priority date	—
Expiry date	Sep 8, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W10/37
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to methods for producing polyaspartic acids with a weight-average molecular weight (Mw) of from 6,000 to 15,000 g/mol. The invention also relates to polyaspartic acids which can be obtained by the method according to the invention, to a composition containing the polyaspartic acids, and to the use thereof as scale inhibitors, dispersants and as an additive in dishwashing agents, detergents or cleaning agents.

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