Patent · US Active

Method for producing superabsorbers based on renewable raw materials

US9822197B2 · kind B2 · utility

3Cited by

0References

7Claims

0Family size

Assignee

BASF SE

Inventors

Klaus Dieter Hörner · Lampertheim, DE
Jürgen Schröder · Ludwigshafen, DE
Rüdiger Funk · Niedernhausen, DE
Renate Wustefeld · Schifferstadt, DE

Key dates

Filing date	Nov 18, 2013
Grant date	Nov 21, 2017
Priority date	—
Expiry date	Nov 18, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P30/20
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for producing water-absorbing polymer particles, comprising the steps of thermal cracking of bionaphtha in the presence of steam, removing propene and at least some of the propane, gas phase oxidation to give acrylic acid and polymerization to give water-absorbing polymer particles.

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