Patent · US Active

Packing polycrystalline silicon

US9550607B2 · kind B2 · utility

2Cited by

4References

15Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Matthias VIETZ · Mattighofen, AT
Bruno Lichtenegger · Emmerting, DE
Reiner Pech · Vilshofen an der Donau, DE

Key dates

Filing date	Dec 3, 2013
Grant date	Jan 24, 2017
Priority date	—
Expiry date	Jun 14, 2035

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65B51/146
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

The present invention relates to a method for packing polysilicon in the form of chunks by introducing the chunks into a first plastic bag, the first plastic bag being introduced into a second plastic bag after the introduction of the chunks, or the first plastic bag already having been inserted into the second plastic bag prior to the introduction of the chunks into the first plastic bag, as a result of which the chunks are present in a double bag which is sealed, wherein the air present in the two plastic bags in the double bag after the introduction of the chunks is removed before the sealing of the double bag such that the total volume of the double bag relative to the volume of the chunks is 2.4 to 3.0.

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