US 12,448,522 B2 · Method for preparing an at least partially exfoliated clay

Abstract

The invention relates to a method for preparing an at least partially exfoliated clay. The present invention further relates to an at least partially exfoliated clay obtainable by such a method and to a suspension comprising such a clay, as well to the use of such an at least partially exfoliated clay and of a suspension comprising such an at least partially exfoliated clay. Furthermore, the present invention is also directed to a polymeric composition comprising an at least partially exfoliated clay and/or a suspension comprising an at least partially exfoliated clay.

Claims8

Dependent claims

A method for preparing an at least partially exfoliated clay, the method comprising:

providing a clay;
providing an exfoliating agent comprising a partial ester of a poly(alkylene oxide) (meth)acrylate, vinylene carbonate, and water;
and
mixing the clay and the exfoliating agent to obtain the at least partially exfoliated clay,
wherein the water is present in an amount of 10% or less by volume, based on the total volume of the exfoliating agent.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/455,454Filed 18 Nov 2021 · continuation

Priority

EP 1917529020 May 2019

Published

US 2022/0073751 A110 Mar 2022

Granted

21 Oct 2025

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

C09C 1/42
Compounds of aluminium: clays
C08K 9/04
Use of pretreated ingredients: ingredients treated with organic substances
C08K 9/08
Use of pretreated ingredients: ingredients agglomerated by treatment with a binding agent
C09C 3/006
Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties: combinations of…

Method for preparing an at least partially exfoliated clay

Life of this patent

Method for preparing an at least partially exfoliated clay

Life of this patent

Abstract

Claims8