Patent · US Active

Method for reducing agglomeration in gypsum plaster or filling compositions comprising cellulose ether

US10457600B2 · kind B2 · utility

0Cited by

1References

2Claims

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Assignee

DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

Joerg Neubauer · Rheydt, DE
Sonja Scharlemann · Großburgwedel, DE

Key dates

Filing date	Dec 4, 2012
Grant date	Oct 29, 2019
Priority date	—
Expiry date	Nov 20, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2111/00198
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The present invention relates to a method for providing modified gypsum plaster or filling compositions having reduced agglomeration in comparison to gypsum plaster or filling compositions comprising cellulose ether in a specific amount from 0.1 to 1.0 weight percent, based on the total dry weight of said composition. Also provided are dry mortars comprising cellulose ether, gelatin and gypsum for use in such methods, and gypsum-free mixtures comprising cellulose ether and gelatin which may be added to gypsum binder for use a for use in such methods.

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