Patent · US Active

Method for producing super absorber particles

US10857256B2 · kind B2 · utility

1Cited by

4References

16Claims

0Family size

Assignee

BASF SE

Inventors

Tina Mark · Haßloch, DE
Thomas Daniel · Waldsee, DE
Erich Lutz · Altrip, DE

Key dates

Filing date	Mar 29, 2016
Grant date	Dec 8, 2020
Priority date	—
Expiry date	Sep 27, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L51/003
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A process for agglomerating superabsorbent particles, wherein polymer particles having a particle size of 250 μm or less are dispersed in a hydrophobic organic solvent, the dispersed polymer particles are mixed with an aqueous monomer solution, the amount of unneutralized monomer applied with the monomer solution being from 0.5% to 80% by weight, based on the dispersed polymer particles, and the monomer solution is polymerized.

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