Patent · US Active

Process for preparing polyoxymethylene

US9765172B2 · kind B2 · utility

0Cited by

7References

18Claims

0Family size

Assignee

BASF SE

Inventors

Laurence Pottie
Juergen DEMETER · Bischofswerda, DE
Marie-Claire HERMANT · Mannheim, DE

Key dates

Filing date	May 26, 2014
Grant date	Sep 19, 2017
Priority date	—
Expiry date	May 26, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L59/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The patent application relates to a process for preparing polyoxymethylene by polymerization of a reaction mixture (RG) which comprises at least one formaldehyde source and at least one initiator mixture (IG), wherein the initiator mixture (IG) comprises at least one polymerization initiator and at least one solvent of the general formula (I)R1—O—[—R3—O—]m—R2 (I),

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