Determination of the degree of branching

US10203319B2 · kind B2 · utility

Assignee

• Arlanxeo Deutschland GmbH · DE

Inventors

• Heike Kloppenburg · Düsseldorf, DE
• Alicia Le-Sattler · Bochum, DE

Key dates

• Filing date: Oct 9, 2014
• Grant date: Feb 12, 2019
• Expiry date: Mar 22, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N11/162
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to a process for determining the degree of branching of modified polymers wherein the polymers are modified in the sense that their degree of branching after polymerization was increased once more, wherein the modified polymers are treated with a polar transformation mixture comprising a compound of general formula (I) R1—S—S—R1   (I) wherein the Mooney viscosity (ML 1+4 at 100° C.) of the polymers is determined before and after the treatment with the polar transformation mixture and the degree of branching is determined.