Patent · US Expired

Drying of coagulated water-containing rubber particles

US6525172B1 · kind B1 · utility

6Cited by

3References

9Claims

0Family size

Assignee

BASF SE

Inventors

Peter Barghoorn · Kallstadt, DE
Rainer Klostermann · Ketsch, DE
Guiscard Glück · Mainz, DE

Key dates

Filing date	Aug 15, 2001
Grant date	Feb 25, 2003
Priority date	—
Expiry date	Aug 15, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08C3/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a process for the drying of coagulated water-containing rubber particles. These are treated with an aqueous solution of any desired substances in monodisperse solution in water in such a way that, at least for some period, the surface of the rubber particles is completely covered by the aqueous solution. It is preferable to use an aqueous solution of substances selected from the group consisting of salts, alcohols, acids and sugars. This method can reduce the internal water content between the particles resulting from coagulation, without major usage of energy or time.

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