Patent · US Expired

Strand evaporator

US6780281B1 · kind B1 · utility

4Cited by

9References

20Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Thomas Elsner · Düsseldorf, DE
Jürgen Heuser · Krefeld, DE
Christian Kords · Krefeld, DE
Klemens Kohlgrüber · Lingen (Ems), DE

Key dates

Filing date	May 22, 2002
Grant date	Aug 24, 2004
Priority date	—
Expiry date	May 22, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S159/15
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A strand devolatilizer that includes a degassing container, a product inlet, a product distributor, a product outlet and a vapor outlet is disclosed. The product distributor is in the form of a tube distributor with at least one distributor tube (1) and a plurality of die tubes (2) arranged in parallel, each containing a plurality of apertures (15) in the tube wall. The die tubes (2) are preferably arranged in several planes one above the other and staggered laterally relative to one another.

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