Patent · US Active

Cellulose and cellulose ether solutions and use thereof

US8901054B2 · kind B2 · utility

0Cited by

3References

14Claims

0Family size

Assignee

SE TYLOSE GMBH & CO. KG · DE

Inventors

Mike Kleinert · Berlin, DE
Thomas Heinze · Finnentrop, DE
Tim Liebert · Jena, DE
Marc Kostag · Jena, DE

Key dates

Filing date	Dec 13, 2013
Grant date	Dec 2, 2014
Priority date	—
Expiry date	Dec 13, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D101/284
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Solutions of cellulose or cellulose ethers in solvent containing triethylheptylammonium chloride, triethyloctylammonium chloride, triethylhexylammonium acetate, triethylheptylammonium acetate, triethyloctylammonium acetate, triethylnonylammonium acetate and/or triethyldecylammonium acetate are provided. The solvent may further include up to 70 wt % of at least one organic solvent, with acetone being the preferred organic solvent. The solution can be formed into a paste for removing paint from wood or metal surfaces. The cellulose (ether) solution can also serve as a reaction medium in which the cellulose and/or the cellulose ether are chemically modified. Finally, the cellulose (ether) solution can be processed into cellulosic shaped articles.

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