Patent · US Expired

Method for the preparation of purified elastomers from solution

US7071292B2 · kind B2 · utility

1Cited by

5References

9Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Dirk Achten · Leverkusen, DE
Rafael Warsitz · Essen, DE
Gregor Dudziak · Bonn, DE
Franz-Josef Mersmann · Bensberg, DE
Stephen Pask · Dormagen, DE
Zsolt Szentivanyi · Leverkusen, DE

Key dates

Filing date	Oct 12, 2004
Grant date	Jul 4, 2006
Priority date	—
Expiry date	Oct 12, 2024

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08C2/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a method for the preparation of purified elastomers prepared by emulsion polymerization, wherein the level of impurity is reduced by up to 99 wt. %, expressed in terms of the unpurified elastomer. The present invention also relates to elastomers which can be obtained by the method according to the present invention, to the use of the elastomers for the production of all types of products, and to the product which is produced by processing the elastomer which can be obtained by the method according to the present invention.

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