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EP0407870A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Process for preparing cycloolefin polymers

Assignee: Ticona GmbH
•
Filing: 1990-07-04
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Granted: —
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Expires: 2010-07-04
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Abstract

Abstract Translated from German Polymerisate von polycyclischen Olefinen der Formeln I bis IV mit einer Viskositätszahl größer 20 cm³/g und einer Glastemperatur oberhalb 100°C erhält man ohne Ringöffnung mit einer hohen Polymerisationsgeschwindigkeit bei technisch günstigen Polymerisationstemperaturen mittels eines Katalysators, welcher aus einer stereorigiden, chiralen Metallocenverbindung der Gruppen IVb bis VIb des Periodensystems der Elemente und einem Aluminoxan besteht. Polymers of polycyclic olefins of the formulas I to IV with a viscosity number greater than 20 cm³ / g and a glass transition temperature above 100 ° C are obtained without ring opening with a high polymerization rate at technically favorable polymerization temperatures using a catalyst which consists of a stereorigid, chiral metallocene compound of groups IVb to VIb of the Periodic Table of the Elements and an aluminoxane.

Inventors

  • 👤 Michael-Joachim Dr. Brekner
  • 👤 Jürgen Dr. Rohrmann
  • 👤 Walter Dr. Spaleck
  • 👤 Martin Dr. Antberg

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-30 13:45
CPC Classifications
C; C08; C08F; C08F210/00; C07; C07F; C07F17/00; C08F32/00; C08F32/08; C08F210/02; C08F210/04; C08F210/06; C08F210/14; C08F210/16; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/639; C08F4/63912; C08F4/6392; C08F4/63922; C08F4/63927; Y; Y10; Y10S; Y10S526/00; Y10S526/943

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